Monthly performance report

MISSING IMAGE

Material Information

Title:
Monthly performance report Living systems
Uncontrolled:
Living systems
Physical Description:
v. : ill. ; 28 cm.
Language:
English
Creator:
United States -- Dept. of Energy
Publisher:
Dept. of Energy
Place of Publication:
Washington
Publication Date:

Subjects

Subjects / Keywords:
Solar energy -- California -- Davis   ( lcsh )
Solar houses -- California -- Davis   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
SOLAR/1024-78/11" ; "SOLAR/1024-78/12" ; "SOLAR/1024-79/01" ; "SOLAR/1024-79/02" ; "SOLAR/1024-79/03" ; "SOLAR/1024-79/04."
General Note:
National solar heating and cooling demonstration program.
General Note:
National solar data program.

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027034899
oclc - 247535587
System ID:
AA00013863:00003


This item is only available as the following downloads:


Full Text
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SOLAR/1024-79/03


Monthly
Performance
Report

LIVING SYSTEMS
MARCH 1979


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


v


/


U.


S.




































____..NOTICE
This report was prepared as an account of work sponsored by the United States
Government. Neither the United States nor the United Stages Department of Energy, nor
any of their employees, nor any of their contractors, subcontractors, or their employees,
make any warranty, express or implied, or assume any legal liability or responsibility for
the accuracy, completeness or usefulness of any information, apparatus, product or
process disclosed, or represents that its use would not infringe privately owned rights.








MONTHLY PERFORMANCE REPORT


LIVING SYSTEMS

MARCH 1979

I. SYSTEM DESCRIPTION


The Living Systems site is a single-family residence in Davis, California.
The home has approximately 1700 square feet of conditioned space. The solar
energy system consists of two independently controlled systems: an active
system for preheating domestic-hot-water (DHW) and a passive system for space
heating the home.


The active solar DHW system has an array of flat-plate collectors with a
gross area of 46 square feet. The array faces south at an angle of 45
degrees to the horizontal. Potable city water is the transfer medium used
throughout the system. In the event of freezing and no insolation, the con-
troller drains the water from the collectors. When water in the collector is
sufficiently warmer than the water in the preheat storage tank, the controller
starts the circulation between the preheat tank and the collector. The preheat
tank holds 82 gallons of water which is supplied, on demand, to a conventional
20-gallon DHW tank. When the water preheated by solar energy is not hot
enough to satisfy the hot water load, a natural gas burner in the DHW tank
provides auxiliary energy for water heating. The system is shown schematically
in Figure 1.


The passive solar space heating system is of the direct-gain type illus-
trated schematically in Figure 2. Incident solar energy is admitted to the
building through both the large south-facing vertical windows (approximately
200 square feet) and the overhead skylight (approximately 80 square feet at
60 degrees from the horizontal). Manually-operated insulating curtains pro-
vide insulation during the night and sunless days for the south-facing col-
lector windows. Manually-operated insulating shutters also provide night
insulation for the skylight glazing and are aluminum coated to provide reflec-
tion to the space below when open. Solar energy is stored in steel tubes
that contain approximately 3600 gallons of water. The tubes are painted blue
and placed near the south window wall and under the skylight. Additional












TEMPE RING
VALVE


82-GAL
PREHEAT
TANK


T291


T351


T352 DOMESTIC
X HOT
WATER


W300

I T300


COLD
WATER
SUPPLY


Figure 1. LIVING SYSTEMS ACTIVE SOLAR DOMESTIC HOT WA TER SYSTEM SCHEMA TIC


W100


VACUUM
VENT
VALVE


EP100


DRAIN
















































NORTH


EAST SIDE VIEW


Figure 2. LIVING SYSTEMS PASSIVE SPACE HEATING SYSTEM








storage is provided by the 6-inch-thick concrete slab floor of the building
which is covered by brown ceramic tile. Collected solar energy is distributed
by natural convection, by conduction through the slab floor, and by radiation.
Floor covering is minimal: linoleum in the kitchen and eating area and white
shag rugs in two bedrooms. The building envelope is well insulated in order
to ensure energy conservation, with R-19 insulation in the walls and R-30
insulation in the roof. The effective R-values of the windows are in the
range of R-2 to R-10 (uncovered and covered with curtains and shutters). All
glass surfaces are double-glazed with minimum window area in nonsouth-facing
walls. Auxiliary space heating is provided by a gas-fired wall furnace which
distributes the energy by natural convection. Additional auxiliary energy can
be supplied from a wood-burning stove.

The building has summer overheat protection which is provided by several
means: Roof overhangs over the south-facing glazed areas provide shading;
operable windows in the south wall and a vent in the north wall provide cross-
ventilation of the house at night, cooling the solar storage mass and moder-
ating daytime building temperatures; the curtains and shutters over the win-
dows prevent collection of incident solar energy during the day; and a ceiling
fan assists the heat distribution and the venting process.



II. PERFORMANCE EVALUATION



INTRODUCTION

Performance evaluation is presented in three parts for this solar energy site:
The first part covers the weather conditions, the second covers the active
solar DHW system, and the third covers the passive solar space heating system.

During the month the active solar DHW system was inoperative, and a critical
sensor failed on March 4. During these four days spill-over from the passive
system satisfied 3 percent of the DHW heating load, whereas 99 percent of the








monthly space heating load was satisfied by the passive solar energy system.
During five days of low incident solar energy, operation of the wood-burning
stove provided backup energy and reduced the space heating demand. Since
auxiliary heat had not been necessary since February 18, the occupants turned
off the space-heater pilot light on March 3 in order to conserve energy.
Daily variations in building temperature were minimal, indicating the presence
of substantial amounts of energy storage capacity. Comfort levels remained
reasonable throughout the month.



WEATHER CONDITIONS


The average ambient temperature during March was 540F as compared with the
long-term average for March of 530F. The number of heating degree-days for
the month (based on a 650F reference) was 343, as compared with the long-term
average of 372.


During the month, total incident solar energy on the DHW collector array was
1.8 million Btu for a daily average of 1295 Btu per square foot. This was
below the estimated average daily solar radiation for this geographical area
during March of 1798 Btu per square foot for a south-facing plane with a tilt
of 45 degrees to the horizontal.


During the month, total incident solar energy on the passive collector south
windows and skylight was 10.1 million Btu for a daily average of 1194 Btu per
square foot. This was below the estimated average daily solar radiation for
this geographical area during March of 1718 Btu per square foot for a south-
facing plane with a tilt of 60 degrees to the horizontal.



THERMAL PERFORMANCE, ACTIVE SOLAR DHW SYSTEM


Collector The total incident solar radiation on the DHW collector array for
the month of March was 1.8 million Btu. The collector system was inoperative
due to freeze damage December 8. However, while the collectors were inoperative,








the storage, pipes, sensors, etc. were still working. There was leakage of
0.049 million Btu from the passive heating system into the DHW preheat system.
The fuel sensor failed on March 4, but for the first four days the effective
solar fraction was 3 percent, based on four days usage. There was no operating
energy required by the inoperative collector loop.


DHW Load The DHW system consumed 0.049 million Btu of solar energy. The
hot wdter load was 1.7 million Btu. The passive system spill-over resulted
in fossil fuel energy savings of 0.082 million Btu. A daily average of 116
gallons of DHW was consumed at an average temperature of 123F delivered from
the tank.



THERMAL PERFORMANCE, PASSIVE SOLAR SPACE HEATING SYSTEM


The total incident solar radiation on the collector windows for the month of
March was 10.1 million Btu. The total solar energy collected was 4.1 million
Btu. The total amount of solar energy delivered to the space heating load
was 4.0 million Btu, resulting in a collector array efficiency of 40 percent,
based on total incident insolation. Auxiliary thermal energy of 0.020 million
Btu (equivalent to 0.087 million Btu of auxiliary fossil fuel energy) was
added to satisfy a space heating load of 4.0 million Btu. This includes three
days of pilot light losses that were not applied to the load. The result was
a fossil fuel energy savings of 6.7 million Btu. The solar fraction of this
load was 99 percent. The average storage temperature for the month was 680F.


On five days in March, the wood-burning stove was used to satisfy a small
amount of the building load. The thermal energy derived from operation of
the wood-burning stove is applied as a reduction to the building load; that
is, the major difference between the building load and the space heating
system demand is the energy derived from operating the wood stove. During
March, this renewable energy was approximately 0.24 million Btu. Assuming a
wood-stove energy conversion efficiency of 30 percent, this 0.24 million Btu
is approximately equivalent to 3 percent of a cord of dry hardwood (such as









oak). In terms of the savings of nonrenewable energy, the renewable thermal
energy derived from the wood is equivalent to 0.40 million Btu of fossil fuel
energy.

The interior comfort level was measured at 680F in both zone 1, the south end of
the building, and zone 2, the north end.



OBSERVATIONS


During the month of March, the home owner was well adjusted to living in the
passive home. The wood-burning stove was used for at least part of five days
of the month. With the space heating load reduced by milder weather, opera-
tion of the reflective (and insulating) shutters and curtains was not as
critical and the operational to incident solar energy went down. The curtains
are still not fully operational. With reasonably large uncurtained windows
in the northeast bedroom, some afternoon overheating has been observed. The
DHW system was inoperative, but significant preheating occurred from leakage
into the pipes and storage from the passive system.


Computed temperature comfort levels inside the building were reasonable
during the entire month in both zones of the building, varying at most by 2F
on any given day. Except when the home was at its warmest (730F), the com-
fort level in zone 2 was slightly lower than that of zone 1. This was due to
the method of transferring heat to zone 2 (with zone 1 being the primary
collection and storage area of the house).



ENERGY SAVINGS


The solar energy system yielded a total fossil fuel energy savings of 6.8
million Btu. The DHW system provided an estimated fossil fuel energy savings
of 0.082 million Btu. The space heating system contributed a fossil fuel
energy savings of 6.7 million Btu.









III. ACTION STATUS


Repair of the active solar DHW system is under negotiation by the home owner.
The fuel-metering system on the DHW heater has to be repaired by Boeing.










SOLAR HEATING AND CCCLING DEMONSTRATION PROGRAM


SITE: LIVING SYSTEMS (159-1)
REPORT PERIOD: MARCH91979
*


MONTHLY REPORT
SITE SUMMARY

DAVIS. CALIFORNIA


SOLAR/I 046-79/03


SITE/SYSTEM DESCRIPTION:
THE LIVING SYSTEMS SCLAR DOMESTIC HOT WATER SYSTEM PROVIDES PREHEAT
TO THE BUILDING DOMESTIC hOT WATER SYSTEM THIS ACTIVE
SYSTEM USES FLAT PLATE COLLECTORS (46 SQ.FT.) TO HEAT WATER DIRECTLY
IN A 82 GALLON STORAGE TANK. AUXILIARY HOT WATER ENERGY IS PROVIDED
BY NATURAL GAS IN THE 20 GALLON HOT WATER HEATER.


GENERAL SITE DATA:
INCIDENT SCLAR ENERGY


COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMED


SUBSYSTEM SUMMARY:

LOAD
SOLAR FRACTION
SOLAR ENERGY USED
OPERATING ENERGY
AUX. THERMAL ENERGY
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HOT WATER
1 .675
4
0.049
N.A.

N.A.
N.A.
0.082


HEATING
N.A.
N.A.
N. A.
N A.
N. A.
N. A.
N.A.
N. A
N.A.


COOLING
N.A.

N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.


1.846
40137
0.000
0
54
67
0.03
0000
0.000
0.000
*


MILLION BTU
BTU/SQ .FT.
MILLION BTU
BTU/SQ.FT.
DEGREES F
DEGREES F


MILLION
MILLION
MILLION


SYSTEM TOTAL
1.675 MILLION
PERCENT
0.049 MILLION
0.000 MILLION
MILLION
N.A. MILLION
MILLION
0.000 MILLION
0.082 MILLION


BTU
BTU
BTU


BTU

BTU
BTU
BTU
BTU
BTU
BTU
BTU


SYSTEM PERFORMANCE FACTOR:


* DENOTES UNAVAILABLE DATA
8 DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE CATA

REFERENCE: U-SER'S GUIDE TO THE NCNTHLY PERFORMANCE REPORT
OF THE NATIONAL SOLAR DATA PRGGRAM9FEBRUARY 28.1978,
SCLAR/0004-78/18









SCLAR HEATINGC AND CCCLING DEMONSTRATION PROGRAM


SITE: LIVING SYSTEMS (159-1)
REPORT PERICC! MARCH,1979


MCNTHLY REPORT
SITE SUMMARY

DAVIS, CALIFCRNIA


SCL P/l1046-79/0


SITE/SYSTEM DESCRIPTION:
THE LIVING SYSTEMS SCLAR DOMESTIC HCT WATER SYSTEM PROVIDES PREHEAT
TO THE BUILDING DOMESTIC HOT WATER SYSTEM THIS ACTIVE
SYSTEM USES FLAT PLATE CCLLECTCRS (46 SO.FT.) TO HEAT WATER DIRECTLY
IN A 82 GALLON STORAGE TANK. AUXILIARY HCT WATER ENERGY IS PROVIDED
BY NATURAL GAS IN THE 20 GALLON HOT WATER HEATER.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMER


1.948
455792
0.000
0
12
19
0.03
0.000
0.000
*


GIGA JC'JLES
KJ/SQ.M.
GIGA JCULES
KJ/SQ. M.
DEGREES C
DEGREES C


GI GA
GI GA
GI GA


JOULES
JOULES
JOULES


SUBSYSTEM SUMMNARY:

LCAD
SOLAR FRACTION
SOLAR ENERGY USED
OPERATING ENERGY
AUX. THERMAL ENG
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HOT %ATER
1.767
*
0.052
N.A.

I.A.

N.A0e
0.086


HEATING
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.


COOLING
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.

N.A.
NAo

N 9A o


SYSTEM TOTAL
1.767 GIGA JOULES
PERCENT
0.052 GIGA JOULES
0.000 GIGA JOULES
GIGA JOULES
N.A. GIGA JOULFS
GIGA JOULES
0.000 GIGA JOULES
0.086 GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


* DENOTES UNAVAILABLE DATA
@ DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE DATA

REFERENCE: USER'S GUIDE TO THE MONTHLY PERFORMANCE REPORT
CF THE NATIONAL SCLAR DATA PRCGRAM,FEBRUARY 28,1978,
SOLAR/0004-78/ 8







SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

NCNTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)


SITE: LIVING SYSTEMS (159-1)
REPORT PERIOD: MARCH,1979


CAVIS, CALIFCRNIA


SOLAR/ 1046-79/03


DAY
OF
MONTH


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS ID


INCIDENT
SCLAR
ENERGY
MILLION
BTU

0. 093
0.026
0.011
0.078
0.065
0.082
0.076
O.ce6
0.085
0.039
0.047
0.061
0 076
0.018
0.010
0.010
0 057
0.060
0.091
0.076
0.088
0.028
0.079
0.088
0.080
0.004
0.030
0.056
0.080
0.083
0.083

1.846

0.060

0001


N113


AMBIENT
TEMP


DEG-F

47
47
49
52
57
61
61
62
60
55
56
59
58
54
52
47
52
52
54
53
52
53
55
57
55
52
53
52
52
51
53


------- ------


AUX
THERMAL
TO ECSS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
E
L
E


ENERGY
TO
LCADS
MILLION
ETU

0.001
0.002
0.001
C 003
0.001
C.002
0.002
0.002
0.002
0.001
0.003
0 002
0.002
0.001
0.001
0.001
0.002
0.002
0.001
0.001
0.002
0.001
0 001
C 002
0.002
C0.002
C .002
0.001
0.001
0.001
C 001

0.049

C.002


------ I-
ECSS
OPERATING
ENERGY
MILLION
ETU

0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0 000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

0.000

0.000

0102


ECSS
ENERGY
REJECTED
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E


N.A.

N.A.


ECSS SOLAR
CONVERSION
EFFICIENCY


0.012
0.068
0.072
0.032
0.017
0.024
0.023
0.026
0.028
0.027
0.058
0.032
0.021
0.078
0.093
0.151
0.028
0.035
0.015
0.018
0.017
0.048
0.014
0.021
0.020
0.428
0.057
0.024
0.014
0.014
0.017


0.027

N111


* DENOTES UNAVAILABLE DATA.
Z DENOTES NULL DATA.
N.A. DENOTES NCT APPLICABLE DATA.


N.A.

N.A.






SOLAR HEATING AND CCCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE


SITE: LIVING SYSTEMS (159-1)
REFCRT PERIOD: MARC-vIS79


DAVIS# CALIFORNIA SOLAP/1046-79/03


DAY
CF
MCNTH


1I
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBSID


INCIDENT
SCLAR
ENERGY
MILLION
BTU

0.093
0.026
0.011
0.078
0.065
0.082
0.076
00086
0.085
0.039
0.047
0.061
0.076
0.018
0.C10
0.010
0.057
0.060
0.091
0.076
0.088
0.028
0.079
0.088
0.080
0.004
0.030
0.056
0.080
0.083
0.083

1.846

0.060
Q0001


------I------------I


I-----------
OPERATIONAL
INCIDENT
ENERGY
NILLICN
BTU

C.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

0.000

0.000
- -
-


COLLECTED
SOLAR
ENERGY
MILLION
BTU

0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

0.000

0.000

0100


62


* DENOTES UNAVAILABLE CATA.
8 DENOTES NULL DATA.
N.A. DENOTES hCT APPLICABLE DATA.


DAYTIME
AMBIENT
TEMP
DEG F

56
54
52
62
67
71
71
72
74
*
66
67
66
60
56
51
58
61
64
63
60
58
67
70
68
54
56
59
62
60
*


COLLECTOR
ARRAY
EFFICIENCY


0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

-

0.000

N100






SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
STORAGE PERFORMANCE


SITE: LIVING SYSTEMS (159-1)
REPORT PERIOD: MARCI-.1S79


DAVIS, CALIFORNIA SOLAR/1046-79/03


------I -----------


ENERGY
TC
STORAGE
NILLICK
BTU


DAY
OF
MONTH


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS ID


ENERGY
FRCM
STORAGE
NILLICN
BTL

0.001
0.001
0.000
0.001
0.001
0.001
0.001
0.002
0.002
0.000
0.002
0.001
0 001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001

0.030

0.001


00000
0.000
0 000
0.000
0.000
0.000
00000
0.000
0.000
00000
0.000
00000
0.000
00000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

0.000

0.000

Q200


CHANGE
IN STORED
ENERGY
MILLION
BTU

N
0
T

A
P
P
L
I
r


STORAGE
AVERAGE
TEMP
DEG F


N
0
T

A
P
P
L
I
C
A
B
L
E


STORAGE
EFFICIENCY



N
0
T

A
P
P
L
I
C
A
B
L
E


N.A. j -
---N------ ---N------- -------
N.A. | N.A. I N.A. I

0202 N108


* DENOTES UNAVAILAELE CATA.
@ DENOTES NULL DATA.
N.A. DENOTES NCT APPLICABLE DATA.


0201






SOLAR t-EATINC AND CYCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
HCT WATER SUBSYSTEM


SITE: LIVING SYSTEMS (159-1)
REPORT PERIOD: MARCI.1979


DAVIS, CALIFCFIRIA


SCL AN/l046-7C1/03


DAY
OF
MON.



1
2
3
4
5
6
7
8
9
0
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS


HOT
* WATER
LOAD
MILLION
BTU

0.046
0.052
0.040
0.077
0.0361
0.0541
0.043
0.0671
0.066
0.053
0.070!
0. 0591
0.053
0.0421
0.0491
0. 043
0.054|
0.097
0.040!
0.047
0.042
0. 051
0.0501
0.048
0.050
0.0691
0.081
0.053'
0.043
0.041
0.060

1.675

0.054

0302


SOLApl
FR.CF
LOAD
PER
CENT

4
6
74
*
4
*
*
*4
*
*
*
*
*
*
*
*
*
*
*
*
*1
*
*

*1
*i
*1

*
s

*1
41

*|

*
----

N300


CPER


MILLICh
BTL


C
T

A
P
F
L
I
C
A

L
E


SOLAR
ENERGY
USED
MILLION
BTU

0.001
0.002
0.001
0.003
0.001
0.002
0.002
0.002
0.002
0.001
0.003
0.002
0.002
0.001
0.001
0.001
0.002
0.002
0.001
0.001
0.002
0.001
0.001
0.002
0.002
0.002
0.002
0.001
0.001
0.001
0.001

0.049

0.002

0300


N30.A

Q303


AUX
TI-ERMAL
USED
NILLICO
BTL

0.051
0.055
0.052





























*301

C301


AUX
ELECT
FUEL
MILLION
BTU

N
Gcl
TI

A
P
P
L
I
C
A
B
L
E

















N.A.

N.A.
0305
0305


AUX
FOSSIL
FUEL
MILLION
BTU

0.085
0.092
0.086
















40
*1





*
*]

*|
*1















0 Q306


ELECT
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E


N.A.


N.A.

C311


FGSSI L
ENERGY
SAVINGS
MILL I3N
PTU

0.002
0.003
0.00 1
0.004
0.002
0.003
0.003
0.004
0.004
0.002
0.005
0.003
0.003
0.002
0.002
0.002
0.003
0.004
0.002
0.002
0.003
0.002
0.002
0.003
0.003
0 003
0.003
0.002
0.002
0.002
0.002

0.082

0.003

C313


* DENOTES UNAVAILABLE DATA.
8 DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.


N.A.


SUP.

T FM P
DEG
F


cI
62

62
63
6e

63
65
C7
66
65|
65
65'
65
66
651
64
65
65f
66
641
64
65
65
65
66
66
64
65|
64



64

N305


HrT
WAT.
T E
F


I 03
120
126
125l
124
124,
113
112
134
123
1271
123
1261
130
131
1261
122
125
134 1
118
1191
126
125,
123
125
124
127
120
126
129



123

N307


HOT
WATER


AL

100
04
160
70
120
81
I 3
163
05
156
120
118
87
98
tOo
106
220
75
88
115
114
100
93
1O10
131
169
102
102
95
114

3606

116

N308






SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SITE: LIVING SYSTEMS (159-I) DA
REPORT PERIOD: MARCH,1979


DAY TOTAL DIFFUSE
OF INSCLATICN INSCLATICh T
MONTH
BTL/SQ.FT BTU/SG.FT

1 2025
2 575 C
3 229 T
4 1701
5, 1407 A
6 1790 P
7 1651 P
8 1874 L
9 1847 I
10 838 C
11 1030 A
12 1318 E
13 1659 L
14 394 E
15 219
16 215
17 1230
18 1302
19 1970
20 1648
21 1918
22 617
23 1726
24 1912
25 1730
26 83
27 657
28 1209
29 1749
30 1806
31 1808

SUM 40137 h.A.

AVG 1295 h.A.

NBS ID 0001


* DENOTES UNAVAILABLE CATA.
& DENOTES NULL DATA.
N.A. DENOTES NCT APPLICABLE CATA.


VIS, CALIFORNIA


AMEIENT
TEMPERATURE

DEC F

47
47
49
52
57
61
61
62
60
55
56
59
58
54
52
47
52
52
54
53
52
53
55
57
55
52
53
52
52
51
53



54

N113


SOLAR/1046-79/03


DAYTIME
AMBIENT
TEMP
DEG F

56
54
52
62
67
71
71
72
74

66
67
66
60
56
51
58
61
64
63
60
58
67
70
68
54
56
59
62
60



62-


--------I
RELATIVE
HUMIDITY

PERCENT

70
73
91
83
84
80
85
75
80
88

82
80
77
85
89
81
74
73
78
77
80
71
63
68
87
88
77
73
71
60


78


WIND
DIRECTION

DEGREES

221
0
203
0
195
0
191
205
339
327
0

318
341
355
14
286
330

79
343

219
326
350
15
3
41
353
218
224


338
N----------15


WIND
SPEED

M.P.H.
-a

4
2
2
2
3

4
4
2
3
7
5

6
5
5
4

8
4
2

4
10
15
4
8
5
6



14

N114








SCLAR HEATING AND CCCLING DEMONSTRATION PROGRAM


SITE: LIVING SYSTEMS (159-2)
REPORT PERIOD: MARCH#1979


MONTHLY REPORT
SITE SUMMARY

DAVIS, CALIFORNIA


SOLAR/I 046-79/03


SITE/SYSTEM DESCRIPTION:
THE LIVING SYSTEMS PASSIVE SCLAR SPACE HEATING SYSTEM PROVIDES
SPACE HEATING FOR A 1700 SQUARE FOOT SINGLE FAMILY DWELLING. THE
LARGE SCUTH-FACING WINDCW WALL AhC CLERESTORY SKYLIGHT PERMIT DIRECT
WINTER SUN TO ENTER THE HOUSE. SOLAR ENERGY THERMAL STORAGE IS PRO-
VIDED BY BOTH WATER FILLED TUBES AND THE CONCRETE SLAB FLOOR. MOVABLE
SHUTTERS AND INSULATING CURTAINS PROVIDE CAPABILITY TO REDUCE NIGHT
HEAT LOSSES. SUMMER OVER -EAT PRCTECTIGN IS PROVIDED BY ROOF OVERHANGS
AND BY NATURAL VENTILATION AUXILIARY SPACE HEAT IS PROVIDED BY A
NATURAL GAS FURNACE.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY

COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMED


10.104 MILLION PTU
37012 BTU/SQ.FT.
4.119 MILLION BTU
15202 BTU/SQ.FT.
54 DEGREES F
67 DEGREES F
0.40
N.A. MILLION BTU
N.A. MILLION BTU
4.092 MILLION BTU


SUBSYSTEM SUMMARY:

LOAD
SOLAR FRACTION
SOLAR ENERGY USED
OPERATING ENERGY
AUX. THERMAL ENERGY
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HOT WATER
N.A.
N.A.
N.A.
N. A
N.A.
N.A.
N.A.
N.A.
N.A.


SYSTEM PERFORMANCE FACTOR:


HEATING
4.026
99
4.005
N. A.
0.020
N.A.
0.087
N.A.
6.676

46.273


COOLING
N.A.
N.A.
NeA.
N.A.
N.A.
N.A.
N.A.
N.A.
NeA.


SYSTEM TOTAL
4.026 MILLION
99 PERCENT
4.005 MILLION
N.A. MILLION
0.020 MILLION
N.A. MILLION
0.087 MILLION
N.A. MILLION
6.676 MILLION


* DENOTES UNAVAILABLE DATA
& DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE DATA

REFERENCE: USER'S GUIDE TO TI-E MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SCLAR DATA PRCGRAM.FEBRUARY 28,1978.
SOLAR/0004-78/18


BTU

BTU
BTU
PTU
BTU
BTU
BTU
BTU








SOLAR EATING AND COOLING DEMONSTRATION PROGRAM


SITE: LIVING SYSTEMS (159-2)
REPORT PERIOD: MARCH,1979


MCNTHLY REPORT
SITE SUMMARY

CAVIS, CALIFORNIA


SOLAR/1 046-79/03


SITE/SYSTEM DESCRIPTION:
THE LIVING SYSTEMS PASSIVE SOLAR SPACE HEATING SYSTEM PROVIDES
SPACE HEATING FOR A 1700 SQUARE FOOT SINGLE FAMILY DWELLING. THE
LARGE SOUTH-FACING WINDOW WALL AND CLERESTORY SKYLIGHT PERMIT DIRECT
WINTER SUN TO ENTER THE HCUSE. SOLAR ENERGY THERMAL STORAGE IS PRO-
VIDED BY BOTH WATER FILLED TUBES AND THE CONCRETE SLAB FLOOR. MOVABLE
SHUTTERS AND INSULATING CURTAINS PROVIDE CAPABILITY TO REDUCE NIGHT
HEAT LOSSES. SUMMER OVERHEAT PROTECTION IS PROVIDED BY ROOF OVERHANGS
AND BY NATURAL VENTILATION. AUXILIARY SPACE HEAT IS PROVIDED BY A
NATURAL GAS FURNACE.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMED


SUBSYSTEM SUMMARY:

LOAD
SOLAR FRACTION
SOLAR ENERGY USED
OPERATING ENERGY
AUX. THERMAL ENG
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HOT WATER
N. A
N.A.
N.A.
N.A.

N.A.
N. A.
N.A.
.A A


SYSTEM PERFORMANCE FACTOR:


HEATING
4.247
99
4.226
N.A.
0.021
N.A.
0.092
N.A.
7.043

46.273


COOLING
N A.
N.A.
N.A.
N.A.
N.A.
N. A
N.A.
N.A.
N.A.


10.660 GIGA JOULES
420310 KJ/SQ.M.
5.964 GIGA JOULES
172635 KJ/SQ.M.
12 DEGREES C
19 DEGREES C
0.40
N.A. GIGA JOULES
N.A. GIGA JOULES
4.317 GIGA JOULES


SYSTEM TOTAL
4.247 GIGA JOULES
99 PERCENT
4.226 GIGA JOULES
N.A. GIGA JOULES
0.021 GIGA JOULES
N.A. GIGA JOULES
0.092 GIGA JOULES
N.A. GIGA JOULES
7.043 GIGA JOULES


* DENOTES UNAVAILABLE DATA
& DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE CATA

REFERENCE: USER'S GUIDE TO THE MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SCLAR DATA PROGRAMFEBRUARY 28*1978,
SCLAR/0004-78/18






SOLAR HEATING AND CCCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
CGLLECTCR ARRAY PERFORMANCE


SITE: LIVING SYSTEMS (159-2)
REPORT PERIOD: MARCPC1979


DAVIS. CALIFCRNIA


SOLAR/1046-79/03


DAY
OF
MONTH


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBSID


INCIDENT
SOLAR
ENERGY
MILLION
BTU

0.541
0.141
0.048
0.453
0.368
0.472
0.425
0.487
0.478
0.210
0.260
0.333
0.425
0.091
0.048
0 045
0.303
0.326
0 .498
0.417
0. 483
0.147
0.435
0.476
0.434
0.014
0.163
0.289
0.421
0.439
0.434

10.104

0.326


QO0--------
--- --- -- ----- ---


CFERATIGNALI
INCIDENT
ENERGY
NILLICN
BTU

0.160
0.033
0.006
0.247
0.069
0.351
0.227
0.357
0.358
0.128
0.122
0.078
0.040
0.000
0.000
0.005
0.083
0 190
0.254
0.119
0.113
0.019
0.102
0.173
0.137
0 *003
0.038
0.000
0.216
0.000
0 *194

3.822

0.123


COLLECTED
SOLAR
ENERGY
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E
















4.119
N.A.

0100


COLLECTOR
ARRAY
EFFICIENCY


N
0
T

A
P
P
L
I
C
A
8
L
E


DAYTIME
AMBIENT
TEMP
DEG F

56
54
52
62
67
71
71
72
74
*
66
67
66
60
56
51
58
61
64
63
60
58
67
70
68
54
56
59
62
60
*


62


* DENOTES UNAVAILABLE DATA.
S DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.


N.A.

N1 00






SOLAR HEATING AND CYCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE HEATING SUBSYSTEM


SITE: LIVING SYSTEMS (159-2)
REPORT PERIOD: MARCH,1979


DAVIS, CALIFORNIA


SOLAR/1046-79/03


DAY
OF
MON.


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS


SPACE
HEATING
LOAD
MILLION
BTU

0.167
0. 137
0.064
0. 122
0.079
0.081
0.092
0.098
0.145
0.156
0.127
0.101
0.125
0.131
0. 140
0.163
0.119
0 160
0.145
0. 153
0.184
0.118
0.080
0. 108
0.137
0. 167
0.174
0.129
0.159
0.149
0. 118

4.026

0.130

0402


SOLAR
FR.OF
LOAD
PCT

99
88
97
100
100
100
100
100
100
100
100
100
100
100o
100
100
100
100
100
100
100
100

100
100
100
100
100
100
100
-o

99

N400


SCLAR
ENERGY
USED
MILLION
BTU

0.1651
0.120
0.062
0.122
0.079
0.081
0.092
0.098
0.145
0.156
0.127
0.101
0.125
0.131
0.140
0.162
0.119
0.160
0.145
0.153
0.184
0.118
0.080
0.108
0.137
0.167
0.174
0.129
0.159
0.149
0.118

4.005

0.129

0400


OPER
ENERGY

MILLION
BTU

N
C
T

A
P
P
L
I
CI
A
B
L
E
















N.A.

N .A.

G403


AUX
ELECT
FUEL
WILLICN
BTU


AUX
THERMAL
USED
NILLICN
BTU

0.002
0.017
06002
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
06000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
06000
0*000

0.020

0.001

0401


AUX
FOSSIL
FUEL
MILLION
BTU

0.014
0.0461
0.017
0.010
0.000
0.000
0.000
0.001
0.000|
0.000
0.000|
0.0000
0.000
0.0000
06000
0.000
0,000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.0001
0.000
0.0000
0 2000
0.087

0.003

0410
|


ELECT
ENERGY
SAVINGS
MILLION
BTU

N
0|
T

A
P
P
L
I
C
A
B
L
E


N.A.


N.A.

0415


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

0.276
0.200'
0.104
0.204
0.131
0.135
0.1531
0. 163
0.242
0.260
0.212
0.168
0.208
0.218
0.233
0.271
0.198
0.267
0.242
0.254
0.307
0. 196
0.134
0.180
0.229
0.279
0.289
0.214
0.266
0.248
0.196

6.676

0.215

0417


BLDG
TEMP

DEG.
F

63
62
64
64
66
69
70O
71
72
69
69
691
70
67
66
64
661
67
67
67
67
66
68
68
68
66
65
65
66
65
65


67

N4 06


* DENOTES UNAVAILABLE DATA.
0 DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.


N.A.

N.A.


AMB
TEMP

DEG.
F

47
47
49
52
57
61
61
62
60
55
56
59
58
54
52
47
52
52
54
53
52
53
55
57
55
52
53
52
52
51
53


54

N113






SCLAR HEATING AND CCCLING OEMCNSTRATICN PROGRAM

MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SITE: LIVING SYSTEMS (159-2) DA
REPORT PERIOD: MARCHl1979

DAY TOTAL DIFFUSE
OF INSOLATION INSOLATICN Ti
MONTH
BTU/SQ.FT BTU/SQ.FT

1 1980 N
2 516 C
3 177 T
4 1660
5 1348 A
6 1729 P
7 1556 P
8 1783 L
9 1750 I
10 769 C
11 953 A
12 1219 E
13 1556 L
14 333 E
15 177
16 165
17 1110
18 1194
19 1825
20 1528
21 1769
22 539
23 1594
24 1743
25 1589
26 52
27 598
28 1059
29 1541
30 1608
31 1591

SUM 37012 N.A.

AVG 1194 N.A.

NBS ID 0001

* DENOTES UNAVAILABLE DATA.
8 DENOTES NULL DATA.
N.A. DENOTES NCT APPLICABLE CATA.


VIS, CALIFORNIA


AMBIENT
TEMPERATURE

DEG F

47
47
49
52
57
61
61
62
60
55
56
59
5e
54
52
47
52
52
54
53
52
53
55
57
55
52
53
52
52
51
53


54

N113


SCLAR/1046-79/03


DAYTIME
AMBIENT
TEMP
DEG F

56
54
52
62
67
71
71
72
74

66
67
66
60
56
51
58
61
64
63
60
58
67
70
68
54
56
59
62
60
*


62


RELATIVE
HUMIDITY

PERCENT

70
73
91
83
84
80
85
75
80
88
82
82
80
77
85
89
81
74
73
78
77
80
71
63
68
87
88
77
73
71
60

78
78


wIND
DIRECTION

DEGREES

221
0
203
0
195
0
191
205
339
327
0

318
341
355
14
286
330
*
79
343

219
326
350
15
3
41
353
218
224


338

N1 15
I----------


WIND
SPEED

M.P.H.

3
1
4
2
2
2
3
3
4
4
2
3
7
5
5
6
5
5
4
3
8
4
2
3
4
10
15
4
8
5
6


5

N114






SOLAR HEATING AND CYCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
PASSIVE SPACE HEATING


SITE: LIVING SYSTEMS (159-2)
REPORT PERIOD: MARCH.1979


DAVIS, CALIFCRNIA


SOLAR/1046-79/03


DAY
OF
MON


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS


SPACE
HEATING
LOAD
MILLION
BTU

0. 166
0. 136
0 064
0.122
0.078
0.0801
0.092
0. 097'
0.145
0.1551
0.127
0.100
0.124
0. 130
0.139
0. 162
0.1181
0.160
0.145
0. 152
0. 183
0.117
0.080
0. 107
0.137
0. 167
0. 173
0.128
0. 159
0. 148
0.117

4.025

0.129

0402


SOLAR
ENERGY
USED
MILLI CN
BTU

0.165
0.119
0. C62
0.1221
0. 078'
0.0801
0.092
0.0971
0.1451
0. 1551
0.127
0.100
0.124|
0.130
0.1391
0.162
0.1181
0.160
0.1451
0.152
0.183
0.117!
0.080
0.107!
0.137
0.1671
0.173
0.1281
0.159
0.148
0.117

4.005

0.129

0400


CHANGE
IN STORE
ENERGY
NILLICN
BTU

0.029
-0 025
-0.012
0 070
0.061
0 1851
0.082
0.098
0.077
-0.109
-0 057
-0.019
-0.015
-0.080
-0 073
-0.071
0.056
0.022
0.070
0.006
-06037
-0 038
0.058
0.011
0.014
-0.102
-0.068
-0.014
0.024
-0 030
0.028

0.144

0.004

Q202


AVERAGE
STORAGE
TEMP
DEG F


65.0
64.71
65.6
65.4
66.2
68.4
70.1
71.8
73.0'
72.3
71.0
7Ce 1
6968
69.0
68.0
66.5
67.9
68.11
68.7
68.9'
69.0
68.1
69.2
69.4
69.0
68.1
66.6
66.1
66.2
66. C
66.0



68.2


DIRECT
SCLAR
UTIL
EFFIC


0.306
0.851
1.288
0.270
0.213
0.171
0.217
0.201
0.304
0.742
0 489
0.303
0.294
1.442
2.886
3.604
0.392
0.492
0.292
0.366
0.381
0.799
0.184
0.227
0.317
11 834
1.064
0.445
0.379
0.339
0.271


0.396


0.020


0.000

Q401


----------


AUX
THERMAL
USED
MILLION
BTU

0.001
0.016
0.002
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0. 000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000


BLDG
TEMP

DEGI
F

63
62
64
64
66
69
70
71
72
69
69
69
70
67
66
64
66
67
67
67
67
66
681
68
681
66
651
65
66
65
65


67

N405


AMB
TEMP

DEG
F

47
47
49
52
57
61
61
62
60
55
56
59
58
54
52
47
52
52
54
53
52
53
55
57
55
52
53
52
52
51
53


54

N113


* DENOTES UNAVAILABLE DATA.
& DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.


WIND
AVG
SPEED
MPH


3. 1
0.8
3.7;
1.8
2.41
1.8
2.51
3.5
3.71
4.01
1.7
2.5
6.71
5.0
5.0
6.01
5.1
5.2
4.0
3.1
7.91
3.5
2.21
2.9
4.2i
10.2
15.3
4.4
7.7
4.7
5.8


4.5

N114


WIND
AVG
DIR
DEG


221
0
203
0
195
0
191
205
339
327
0
*
318
341
355
14
286
330
*
79
343

219
326
350
15
3
41
353
218
224


338

N115


SOLA
FR
LOAD
PER
CENT

99
88
97
100
100
100
100
100
100
100
100
100too
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100



99

N400






SOLAR



SITE: LIVING SYSTEMS (159-2) DA
REPORT PERIOD: MARCH,1979


DAY BUILDING BLDG BUILDING BUI
OF COMFORT COMF TEMP T
MON ZONE ZCNE MIDNIGHT 6
I 2 DEG F D


1 65 65 63
2 65 64 64
3 66 65 61
4 66 65 66
5 67 67 67
6 70 69 71
7 71 71 71
8 72 72 71
9 73 73 72
10 71 72 69
11 71 71 69
12 70 70 71
13 70 71 68
14 69 69 67
15 68 68 65
16 66 66 65
17 68 67 67
18 68 67 67
19 69 68 67
20 69 69 67
21 69 68 66
22 68 67 66
23 70 6e 68
24 69 69 67
25 69 69 68
26 67 68 65
27 66 67 65
28 66 66 64
29 67 67 65
30 66 66 65
31 66 66 66

SUM -

AVG 68 68 67

NBS


* DENOTES UNAVAILABLE DATA.
@ DENOTES NULL DATA*
N.A. DENOTES NOT APPLICABLE DATA*


HEATING AND CCCLING DEMCNSTPATION PROGRAM

MONTHLY REPORT
PASSIVE SYSTEM ENVIRONMENT

VIS9 CALIFORNIA


LDING
EMP
AN
EG F


60
59
63
59
63
64
67
68
67
68
66
65
68
65
66
62
64
64
63
64
64
64
64
64
64
65
64
63
62
62
61


64


ELILDING
TEMP
hCCN
DEG F


65
63
63
65
66
69
70
71
73
68
69
68
70
67
66
63
66
69
68
67
68
65
69
70
69
66
64
65
68
64
66


67


BUILDING
TEMP
6 PM
DEG F


67
64
64
68
69
74
75
75
77
71
69
73
71
68
67
63
69
68
71
71
70
67
71
70
69
66
66
67
68
67
69


69


INTER IOR
RELATIVE
HUMIDITY
PERCENT


42
40O
43
431
47,
48
50
47
45
46
451
47
47
45
46
44
44
43
43
431
42
43;
42
39,
39
42
46
47
43
42
38'


44|


AMB
TEMP
DEG
F


47
47
49
521
57
61'
61
62?
60
55'
56
59
581
54
521
47
52
52
54'
53
52
531
55
571
55
52
531
52
52
51
53


54

N113


SOLAR/1046-79/03


DAYTIME
AMe
TEMP
DEG F


56
54
52
62
67
71
71
72
74
*
66
67
66
60
56
51
58
61
64
63
60
58
67
70
68
54
56
59
62
60



62


INC IDENT
SOLAR
ENERGY
MILLION
BTU

0.541
0.141
0.048
0.453
0.368
0.472
0.425
0.487
0.478
0.210
0.260
0.333
0.425
0.091
0.048
0.045
0.303
0.326
0.498
0.417
0.483
0.147
0.435
0.476
0.434
0.014
0.163
0.289
0.421
0.439
0 434

10.104

0.326


AVG
STOR
TEMP
DEG
F

65
65
66
65
66
68
70
72
73
72
71
70
70
69
68
67
68
68
69
69
69
68
69
69
69
68
67
66
66
66
66


68




UNIVERSITY OF FLORIDA
I 1 26I 11 IAII II I I
3 1262 05392 7256






UNIVERSITY OF FLORIDA
l ll 1 262 09052 550lllll III IIIllll
3 1262 09052 5501




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