Monthly performance report

MISSING IMAGE

Material Information

Title:
Monthly performance report Colorado Sunworks
Series Title:
SOLAR ; 1051-79/06
Uncontrolled:
Colorado Sunworks
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 houses -- Colorado -- Longmont   ( lcsh )
Solar energy -- Colorado -- Longmont   ( lcsh )
Solar water heaters   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
MONTHLY CATALOG NUMBER: gp 80007787
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 - 022609083
oclc - 05961910
System ID:
AA00013826:00002


This item is only available as the following downloads:


Full Text
1 2I :
;iiii'm ,, "


S L 5-7/)j-


79 /s-


Monthly
Performance
Report





COLORADO SUNWORKS
MAY 1979


U.S. Department of Energy

SNational Solar Heating and
Cooling Demonstration Program

National Solar Data Program
":"a EEii:"i.:: ..


Vt


SOLAR/1051-79/05

































NOTICE


This report was prepared as an account of work sponsored by the United States
Government. Neither the United States nor the United States 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.




MAY 1979


I. SYSTEM DESCRIPTION

The Colorado Sunworks solar energy system is a passive solar energy
system used for both space heating and domestic hot water preheating of
a single-family dwelling located in Longmont, Colorado. The building is
a three bedroom single-story house with approximately 1,800 square feet
of living space as illustrated in Figure 1.

The passive space heating system, illustrated schematically in Figure 2,
is a combination drum wall and direct gain system. Sunlight enters the
double-glazed windows (approximately 300 square feet) on the south side
of the building where the majority of the energy is absorbed by the
black painted 55-gallon water-filled drums (54 drums total). The remain-
der of the energy is either absorbed in the 6-inch thick concrete slab
floor or used to satisfy the daytime space heating demand. The 8-inch
thick exterior insulated reinforced concrete building walls also serve
as a secondary solar storage mass.


At night, or during periods of low incident solar energy, heat losses
through the glazing are reduced by using movable insulation in the form
of a Beadwall.* The Beadwall is constructed using the two panes of glass
spaced 5-1/2 inches apart. Beads of white-colored rigid insulation can
be blown into the space between the glass or sucked out using electrically
driven blowers. When not used for south wall insulation, the beads of
insulation are stored in tanks located in the garage. Operation of the
Beadwall is automatically controlled based on sensors measuring incident
solar energy and inside and outside temperature. This automatic opera-
tion may be manually overridden.



* Beadwall is a registered trademark of the Zomeworks Corporation,
Albuquerque, NM.






























Hot Water -
Preheat Tank
Contoured
Earth Berms

Air Lock-----


Vertical 55 Gal. 0
Drums Atium
/ Great Room

EJ 1Fireplace

Hot Water
Preheat Tank O


55 Gallon Drums Mater Bath
Filled with Water Bedroom





SOUTH


ORIGINATED 2/9/79
ZONE 1 ZONE 2

Small drums are stacked horizontally except in the Atrium where a
single stack is placed vertically.
plan view


Figure 1. COLORADO SUNWORKS PASSIVE SOLAR SPACE HEATING SYSTEM















Wind Turbines


with 6" of Rock
Subbase ORIGINATED 2/9/79

east elevation

Figure 2. COLORADO SUNWORKS PASSIVE SOLAR SPACE HEATING SYSTEM







Distribution of the collected solar energy to the house is by both
convection and radiation. A unique feature of this building is the
technique used for distribution of collected solar energy from the drums
to the north side of the house. The vertically stacked drums near the
south wall form a drumwell chimney where heated air rises through ceiling
vents above the drums into an open plenum area between the roof and the
ceiling of the rooms. Additional vents from this plenum on the north
side of the house provide a path for the warm air into the room, thus
providing for a thermosiphon flow around the inside of the building.

The building design and construction makes use of a number of energy
conserving features. The exterior skin of the building (including the
bottom of the slab floor) is well insulated and sealed. Earth berms on
the north, east, and west sides of the house provide additional insula-
tion along with a damping of the extremes in temperature variation of the
outside skin of the house. The roof is also covered with approximately
one foot of earth. Additional energy conserving features include the
use of an entry vestibule to serve as an airlock and the placement of
the garage to the northwest to serve as a windbreak.

Auxiliary space heating energy is provided by either natural gas-fired
hydronic baseboard units or by a wood burning fireplace. The fireplace
has a provision for recirculation of room air while providing outside
air for combustion.

The passive solar domestic hot water system (Figure 3) consists of two
30-gallon tanks which have been stripped of their insulation, painted
black, and positioned next to the south wall (Figure 1). Domestic hot
water is preheated in these tanks before passing on demand to the natural
gas-fired domestic hot water tank where it is raised to operating tempera-
ture. The preheat tanks are insulated from the living space by interior
walls, and are insulated from the outside conditions at night using the
Beadwall movable insulation. Reflective surfaces inside the insulated
spaces enhance the absorption of incident solar radiation.

















COLD WATER
SUPPLY


PASSIVE PREHEAT
TANKS


T305


T301


F300


DOMESTIC
HOT
WATER
















ORIGINATED 2/9/79


Figure 3. COLORADO SUNWORKS PASSIVE SOLAR DOMESTIC HOT WATER SYSTEM SCHEMATIC


T3001








Summer overheat protection is provided by several means. A roof overhang
over the south wall provides shading from the high summer sun. The
Beadwall movable insulation can be closed during the day to prevent
solar radiation from entering the building. Cooling of the building is
enhanced by the use of nighttime ventilation. Cool outside air can
enter the house through open windows, passing over the solar storage
masses and removing energy before exiting the building through roof
vents located in the plenum area between the ceiling and roof. This
natural flow is enhanced by the use of wind turbines above the roof
vents as illustrated in Figure 2. When the house is closed during the
daytime hours, the cooled solar storage masses absorb energy, thus
tempering conditions inside the living space.

Predicted solar contribution for this system is 65 percent of the energy
requirements for space heating and domestic hot water. The building is
located near Longmont, Colorado (north of Denver) on a plain at least 10
miles east of significant changes in the terrain elevation. The average
annual heating requirement for this area is over 6,000 heating degree-
days. Long-term monthly average outside ambient temperatures range from
300F in January to 730F in July. Relative humidity is generally quite
low. The average annual percentage of available sunlight is 64 percent.
The most significant local climate effects are the high surface winds
typically encountered during periods of changing weather conditions.

II. PERFORMANCE ANALYSIS

A. Introduction

During May, the solar energy systems at the Colorado Sunworks site
satisfied 96 percent of the space heating demand and more than 20
percent of the domestic hot water load. The available solar energy was
somewhat less than the average expected for May. Also, the outside
ambient temperature was less than the long-term average. The building
interior comfort levels were within acceptable levels during most of the
month. The auxiliary heating system was used on two days due to a Bead-
wall system failure which occurred in conjunction with an injury to one
of the occupants.








The heating system solar energy storage masses provided adequate
reserve heating capacity and, by absorbing energy during the day and
releasing it at night, reduced the variations in building temperature
within each day. The wood burning fireplace was used on some days as a
supplemental source of heating. The Beadwall nighttime insulation
system functioned properly except during the period of the control
system component failure. Measurable nonrenewable energy savings
were realized for both solar energy systems.

B. Weather

The daily average incident solar energy during May was 584 Btu/ft2-day,
less than the long-term average of 890 Btu/ft2-day derived from measure-
ments at the nearby Denver, Colorado weather station. The average outside
ambient temperature of 530F was also less than the long-term average of
570F. Surface winds were occasionally quite high, particularly on May 6,
when the daily average wind speed was greater than 10 miles per hour.

C. System Thermal Performance

Collection Of the 5.43 million Btu of incident solar energy, 3.92
million Btu were incident when the Beadwall window insulation was open.
The solar energy systems collected 38 percent of the total incident
solar energy, or 2.10 million Btu. It should be noted that this collec-
tion efficiency does not include energy losses through the south window
glazing. The glazing losses are accounted for as a part of the load.
All of this collected solar energy was used to partially satisfy the
demands 0.43 million Btu to the domestic hot water subsystem and 1.64
million Btu to the space heating demand. Operation of the Beadwall
system required 0.10 million Btu, or 29 kwh of electrical energy.

Domestic Hot Water The solar energy absorbed in the two domestic hot
water preheat tanks satisifed 21 percent of the domestic hot water
demand of 1.80 million Btu by supplying 0.43 million Btu of solar energy









from the preheat tanks. An average of 88 gallons of hot water were used
each day by the four-member family living in the house. The solar contri-
bution never reaches zero, even after the water in the preheat tanks has
been completely replaced. This is due to energy transfer from the house
(700F) to the water in the preheat tanks (cold supply water temperature
averages 500F) since the preheat tanks are not completely thermally
isolated from the interior of the building. Approximately 3.11 million
Btu of natural gas was used as auxiliary fuel by the hot water heater.
Assuming a conversion efficiency of 60 percent, then 1.87 million Btu of
auxiliary thermal energy was delivered to the hot water. Using the as-
sumed efficiency of 60 percent, the fossil fuel savings due to the hot
water solar energy system are estimated to be 0.72 million Btu (722 cubic
feet*) of natural gas. Daily variations in hot water solar fraction and
hot water energy savings are due to variations in incident solar energy
and daily variations in the hot water use, both in time of use and amount
of use.

Space Heating Since only a small amount of non-renewable energy was used
for space heating during May, the solar energy system satisfied nearly 100
percent of the space heating demand. The reported space heating demand
(reported as heating subsystem load) of 1.71 million Btu was reduced from
the building load of 3.36 million Btu by 0.18 million Btu derived from fire-
place operation and by 1.47 million Btu estimated from the use of the build-
ing (appliances, lights, people, etc.).

Comfort levels inside the building were reasonable during most of the
month, ranging between 650F and 750F as daily averages. The 1F difference
in reported comfort levels between the north side of the building (zone
2) and the south side of the building (zone 1) indicates the capability
of the system to transfer energy from the primary collection and storage
area near the south wall to the remainder of the building. The only
problem area was the north-west bedroom, which, as in past months, was
generally several degrees cooler than the rest of the house due to the
exposed, partially-bermed north wall.



* Assumes 1,000 Btu per cubic foot.








The energy storage masses used for space heating provide good moderation
of building interior temperatures. Temperature variations within a day
averaged only 30F for the month due to the capability of the storage masses
to absorb excess energy during high incident energy periods and release the
energy back to the conditioned space during low incident energy periods.

The thermal storage masses also provided a satisfactory energy reserve as
illustrated by the system performance during the time period of May 6
through May 8. During this time period, the incident solar energy and the
operational incident solar energy (incident energy when the Beadwall was
open) were low. Since no auxiliary energy was used, the demand was satisfied
entirely by energy released by the storage masses. The reported storage en-
ergy changes for those time periods do not exactly correlate with the demand
(load) due to the lag in energy release from the different energy storage
masses. Since all of the masses are not completely instrumented (the number
of sensors required would be quite high), the rate of temperature decay of
some of the mass is assumed to be similar to the instrumented portion of the
mass. Since the energy level of all portions of the mass does not change
simultaneously, then an error may be introduced corresponding to a time lag.
On a daily basis this may produce a significant error when the building tem-
perature is changing measurably. However, over a several day time period
the errors are small.

D. Observations

The report parameter "ECSS Solar Conversion Efficiency" shown on the
summary page of the attached computer printout is defined as the ratio of
the solar energy used by the system to the total incident solar energy.
As such, it represents an efficiency indication of the use of solar energy
by the system. The value printed in this report, 38 percent, is computed
with respect to the building use of solar energy. Since part of the solar
energy used by the building is used to replace energy losses through the
glazed areas, then this parameter would be expected to have a higher value
than for an active solar energy system, or a higher value as compared to a
building of more conventional structure.









An electrical component failure in the Beadwall control system caused the
Beadwalls to fail in the closed condition early in the month. Within sev-
eral days manual operation had been restored. Fully automatic operation
is expected to resume early in June.

E. Energy Savings

Energy savings for the space heating system are presented against several
rating scales. First, the building energy savings due to the use of.
passive solar heating, or the difference in the demand and the auxiliary
used, are estimated to be 2.74 million Btu (2,740 cubic feet) of natural
gas. If the savings are computed with respect to a building with equiva-
lent energy conservation characteristics, but with a south wall similar
in construction to the other building walls, the space heating comparison
energy savings are approximately 2.01 million Btu (2,010 cubic feet) of
natural gas. Finally, if the savings are computed with respect to the com-
parison building as operated to a set point temperature of 680F to 700F,
the set point comparison energy savings becomes 1.91 million Btu (1,910
cubic feet) of natural gas. Operation of the fireplace, which provided
0.18 million Btu, is equivalent to the savings of 300 cubic feet of natu-
ral gas since an efficiency must be considered for conversion of fossil
fuel energy to thermal energy (60 percent used). Additional energy savings
for the solar energy systems are 722 cubic feet of gas due to the solar hot
water preheat system. The power necessary to operate the Beadwall night-
time insulation system was 29 kwh. This energy is applied as a penalty to
energy savings.

Total estimated energy consumption during May was 551 kwh of electrical
energy, 3,234 cubic feet of natural gas, less than one percent of a cord
of wood, and 2.08 million Btu of solar energy.

III. ACTION STATUS

At the next site visit, the sensor used to sense fireplace operation is
to be changed from a thermal switch to a surface temperature type.








SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LONGMONT, COLORADO


SOLAR/1051-79/05


SITE/SYSTEM DESCRIPTION:
THE COLORADO SUNWCRKS SOLAR ENERGY SYSTEM PROVIDES SPACE HEATING AND
DOMESTIC HOT WATER PREHEATING. THE PASSIVE HEATING SYSTEM CONSISTS
OF A DRUMWALL CCLLECTCR/STORAGE UNIT USED IN CONJUNCTION WITH A
BEADWALL, TWO 30 GALLON TANKS POSITIONED NEXT TC THE SOUTH WALL AND
INSULATED FROM THE INTERIOR LIVING SPACE. ENERGY CONSERVING FEATURES
INCLUDE INCREASED INSULATION, THE USE OF EERMS ON THE NORTH,
EAST AND WEST SIDES, AN AIRLOCK AND THE PLACEMENT OF THE GARAGE TO
THE NORTHWEST TO SERVE AS A WINDBREAK.


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 CCNSUMED


5.430 MILLION BTU
18118 BTU/SQ.FT.
2.090 MILLION BTU
6972 BTU/SQ.FT.
53 DEGREES F
70 DEGREES F
0.38
0.098 MILLION BTU
0.100 MILLION BTU
5.410 MILLION BTU


SUBSYSTEM SUMMARY:
LOAD
SOLAR FRACTION
SOLAR ENERGY USED
OPERATING ENERGY
AUX. THEPMAL ENERGY
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HCT WATER
1 .797
21
0.433
N.A.
1.8 86
N.A.
3.109
N.A.
0.722


HEATING
1.707
196
1.642
0.002
C.065
N.A.
0.124
N.A.
2.737


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


SYSTEM TOTAL
3.504 MILLION
58 PERCENT
2.076 MILLION
0.100 MILLION
1.930 MILLION
N.A. MILLION
3.234 MILLION
-0.100 MILLION
3.459 MILLION


SYSTEM PERFORMANCE FACTOR:


C. 2


* DENOTES UNAVAILABLE DATA
@ DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE DATA
REFERENCE: USER'S GUICE TO THE MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SOLAR DATA PRCGRAM,FEBRUARY 28,1978,
SOLAR/0004-78/18


BTU
BTU
BTU
BTU
BTU
BTU
BTU
BTU








SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTI-LY REPORT
SITE SUMMARY


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LONGMONT, COLORADO


SOLAR/1051-79/05


SITE/SYSTEM DESCRIPTION:
THE COLORADO SUNWCRKS SOLAR ENERGY SYSTEM PROVIDES SPACE HEATING AND
DOMESTIC HOT WATER PREHEATING. THE PASSIVE HEATING SYSTEM CONSISTS
OF A DRUMWALL CCLLECTOR/STORAGE UNIT USED IN CONJUNCTION WITH A
BEADWALL, TWO 30 GALLON TANKS POSITIONED NEXT TC THE SOUTH WALL AND
INSULATED FROM THE INTERIOR LIVING SPACE. ENERGY CONSERVING FEATURES
INCLUDE INCREASED INSULATION, T-E USE OF EERMS ON THE NORTH
EAST AND WEST SIDES, AN AIRLOCK AND THE PLACEMENT OF THE GARAGE TO
THE NORTHWEST TO SERVE AS A WINDBREAK.


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
1.896
21
0.457
N.A.
1.968
N.A.
3.280
N.A.
0.762


HEATING
1.801
96
1.733
0.002
C. C68
N.A.
0.131
N.A.
2.888


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


5.729 GIGA JOULES
205745 KJ/SQ.M.
2.205 GIGA JOULES
79179 KJ/SQ.M.
12 DEGREES C
21 DEGREES C
0.38
0.103 GIGA JOULES
0.106 GIGA JOULES
5.708 GIGA JOULES

SYSTEM TOTAL
3.697 GIGA JOULES
58 PERCENT
2.190 GIGA JOULES
0.106 GIGA JOULES
2.036 GIGA JOULES
N.A. GIGA JOULES
3.412 GIGA JOULES
-0.106 GIGA JOULES
3.650 GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


C.982


* DENOTES UNAVAILABLE DATA
@ DENOTES NULL DATA
N.A. DENOTES NOT APPLICABLE DATA
REFERENCE: USER'S GUIDE TO THE MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SOLAR DATA PRCGRAY,FEBRUARY 28,1978,
SOLAR/0004-78/1




SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM
MONTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,197q


LONGMONT, COLORADO


SOLAR/1051-79/05


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


AMeIENT ENERGY
TEMP TO
LOADS
MILLION


INCIDENT
SOLAR
ENERGY
MILLION
BTU
0. 167
0.035
0.014
0. 271
0.215
0.261
0.027
0.003
0.060
0.199
0.248
0.216
0.238
0.252
0.238
0.251
0.236
0.166
0.223
0.028
0.227
0.217
0.097
0.227
0.185
0.231
0.222
0.217
0.135
0. 046
0.278
5.430
0.175
Q0001


---~--~------
--1

53
N113 I


BTU
N
0
T


N. A.
N.A.


DEG- F
52
38
36
49
62
63
43
37
31
36
46
49
57
58
62
67
62
63
61
47
58
59
54
63
60
64
66
65
56
42
50


AUX |
THERMAL
TO ECSS
MILLION
BTL
N
C
T
A
P I
F
L
I
C
A
e
L
E














N.A.
N.A.---------
N4.A

----------I


-~----------
ECSS
OPERATING
ENERGY
MILLION
BTU
0.005
0. 000
0.000
0.004
0. 005
0.006
0.005
0.002
0.001
0.003
0.000
0.003
0. 004
0.003
0.002
0.002
0.003
0.003
0.004
0.000
0. 003
0.003
0.000
0.008
0.003
0. 004
0.003
0.004
0. 004
0.007
0.004
0.098
0.003
Q102
Q102


N.A.
N. A.


EC SS
ENERGY
REJECTED
MILLION
BTU
N
0
T
A
P
P
L
I
C
A
B
L
E


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


ECSS SOLAR
CONVERTS ION
EFFICIENCY


0.351
0.925
2. 946
0 368
0.371
0. 220
1.782
17.831
2.020
0.472
0. 201
0 .273
0.372
0.329
0.294
0.227
0.366
0.087
0. 309
0.783
0.546
0.326
0.223
0.395
0.329
0.197
0. 233
0.165
0.582
1. 439
0.538

I-------------
0.382
N111









SCLAR HEATING AND CCOLING CEMCNSTRATION PROGRAM
MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY, 1979


LOINGONT, CCLCRACO


S CLAR/1051-79/05


DAY
OF
MONTH


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


INCIDENT
SOLAR
ENERGY
MILLION
BTU
0.167
0.035
0.014
0.271
0.215
0.261
0.027
0. 003
0.060
0.199
0.248
0.216
0.238
0.252
0.238
0,251
0,236
0.166
0.223
0.028
0.227
0.217
0.097
0.227
0.185
0,231
C.222
0.217
0.135
0.046
0.278
5.430
0.175
QOO1


~-----------
OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU
C.124
0.000
C.000
0.131
0.170
C.169
0.008
C.000
C.000
0.140
0.001
0.130
0.243
0.159
0.255
0.273
C.257
0.185
C.063
0.006
0.105
C.185
0.016
0.191
0.173
0.197
0.186
0.182
0.133
0.028
0.214
3.921
0.126


COLLECTED
SOLAR
ENERGY
MILLION
BTU
N
C90
T
A
P
P
L
I
C
A
B
L
E














2.C90
C.C67
Q100
I-----


DAYTIME
AMBIENT
TEMP
DEG F

62
35
37
60
72
77
46
40
35
43
58
58
69
69
76
80
77
71
*
44
67
71
57
*
72
75
81
67
41
56


61

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


COLLECTOR
ARRAY
EFFICIENCY


N
C
1
A
P
P
L
I
C
A
8
L
-E


-----------
0.385
N100


* 'DENOTES UNAVAILABLE DATA.
8 DENOTES NLLL DATA.
N.A. DENOTES NOT APPLICABLE DATA.




SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
HOT WATER SUBSYSTEM


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LONGMONT,


COL ORA DO


SOLAR/1051-79/05


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


HOT
WATER
LOAD
MILLION
BTU
0. 044
0.034
0.035
0.082
0.048
0. 05 3
0.029
0.067
0. 041
0.050
0.032
0.105
0.042
0.041
0.Q63
0.066
0. 040
0.022
0.117
0.032
0.060
0.052
0.103j
0.092
0.027
0.064
0.054
0.081
0.0481
0.039
0.137
1.797
0.058
Q302


SOLAR
FR.OF
LOAD
PER
CENT
,----I
32
17
12
11
23
26
21
11I
6
10
11
13
191
21
24
301
26
26
42
32
18
20
21
221
18
19
31
29
24
19
14
-~---- 1

21
N3O0


SOLAR
ENERGY
USED
MI LLIGN
BTU
0.011
0.006
0.003
0.014
0.015
0.019
0. C05
0.006
0.003
0.007
0.005
0.018
0.011
0.015
0.020
0.025
0.015
0.007
0.042
0. C08
0.014
0.013
0.021
0.024
0.005
0.015
0.023
0.023
0.015
0.006
0.020
0.433
0.014
Q300


AUX
ELECT
FUEL
MILLION
BTU
N
C
T
A
F
P
L
I
C
A
E
L
E














N. A.
N.A.
Q305


AUX
FOSSIL
FUEL
MILLION
BTU
0.090
0.074
0.082
0.196
0.050
0.083
0.074
0.130
0.092
0.103
0.070
0.169
0.088
0.083
0.103
0.109
0.073
0.051
0.089
0.072
0.115
0.081
0.155
0.142
0.087
0.090
0.080
0.109
0.084
0.078
0.206
3.109
0.100
Q306


FOSSI L
ENERGY
SAVINGS
MILLION
BTU
0.018
0.010
0.005
0.0241
0.026
0.032
0.008
0.010
0.0051
0.012
0.008
0.0311
0.018
0.025
0 .033
0.042
0.026
0.012
0.070
0 .0131
0.023
0.022
0 .034
0.040
0.0081
0.025
0.038
0.038
0.024
0.010
0 .033
0.722
0.023
Q313


SUP.
WAT.
TEMP
DEG
F
51'
48
48
491
49
49
481
49
49
49
49
491
48
50
49
49
4Q
501
49
501
50
51
50
51
51
51
52
51(
53
52
53


50
N305


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


HOT HOT
WAT. WATER
TEMP USED
DEG
F GAL
130 62
131 49
129 55
133 129
134 67
133 76
132 41
133 96
133 60
132 79
132 48
134 148
126 68
132 59
135 89
134 98
131 58
130 35
129 186
131 51
134 86
134 76
126 157
122 164
129 44
134 1101
130 83
125 128
128 74
134 61
135 205
2741
131 88
N307 N308









SOLAR HEATING ANC CCOLING DEMONSTRATION PROGRAM


MCNTHLY REPORT
SPACE HEATING SUBSYSTEM


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LONGMONT, COLCPACC


SOLAR/1051-79/05


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
0.048
0.027
0.054
0.086
0.064
0.038
0.044
0.042
0.119
0.08 7
0.095
0.040
0.078
0.068
0.050
0.031
0.071
0.007
0.027
0.014
0. 110
0.058
0.001
0.066
0.056
S0.030
0.029
0.013
0.064
0.060
0.129
1.707
0.055
Q402


SOLAR
FR.OFl
LOAD
PCT

1001
100
73
100
100
100o
100
100
1001
100
471
100
100
100
100
100
1001
100
1001
100
100
100
100
100
1001
100
100
100
100
100

-I
100


96
N400


SOLAR
ENERGY
USED
MILLION
BTU
0.048
0.027
0.040
0.086
0.064
0.038
0.044
0.042
0.119
0.087
0.045
0.040
0.078
0.068
0.050
0.031
0.071
0.007
0.027
0.014
0.110
0.058
0.001
0. 066
0.056
0.030
0.029
0.013
0.064
0.060
0.129
1.642
0.053
Q400


OPER
ENERGY
MILLION
BTU
0.000
0.000
0.001
0.000
0.000
0.000
0.000
C. 000
0.000
0.000
0.002
0.000
0.000
0.000
0.000
C. 000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
C. 000
0.000
0.000
C. 000
0.000
0.000
0.000
0.000
0.002
C. 000
0403


-Im -


AUX
THERMAL
USED
MILLION
ETU
C.000
0.000
0.015
0.o000
0.000
C. 000
0.000
0.000
C.000
0.000
0.050
0.000
0.000
c.000
C.000
0.000
0.000
0.000
0.000
0.000
C.000
0.000
0.00
0.000
0.000
C.000
0.0001
0.000
0.000
C.000
0.000

0.065
0.002
C401


AUX
ELECT
FUEL
MILLION
BTU
N
Cl
T
4A
P
P
L
I
Ci
A
8E
L
E














N.A.
N. A.


----- --|-1111111 1-


AUX
FOSSIL
FUEL
MILLION
BTU
0.000
0.000
0.024
0.000
0.000i
0.000
0.000
0.000
0.000
0.000
0.083
0.011
0.0001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000'
0.000
0.000
0.006
0.000
0.0004
0.000
0.000
0.000
0.000
0.000
0.124
0.004!
Q410


ELECT
ENERGY
SAVINGS
MILLION
BTU
N
0
T
A
P
P
L
I
C
A
B
L
E














N.A.
N.A.
Q415
,== .,=,D,=


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


-an


FOSSIL I
ENERGY
SAVINGS
MILLION
BTU
0.079
0.044
0.0661
0.143
0.107
0.064
0.074
0.070i
0.198
0.145
0.075
0.067
0.1301
0.113
0.083
0.05 2
0.118
0.012
0.045
0. 024
0.18 4
0.096
0.002
0.1101
0.094
0.05 1
0.0481
0.021
0.107
0.100
0.216
2.737
0.088
Q417


I-----
BL DG
TEMP
DEG.
F
71
68
661
67
68
701
68
67
65
65
65
66
67
69
71
72
73
73
72
70
70
71
71
72
72
73
731
74
74
71
72


701
N4061
,,-, -, I


I----
AMB I
TEMP
DEG.!
F
52
38
361
49
621
631
43
37
31
36
461
49
57
581
62
67
62
63
611
47
58
591
54
63
60
64
661
I 65
561
421
50
5-1

53
N113


I





SCLAR HEATING AND CCCLING CEMCNSTRATICN PROGRAM
MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SITE: COLORADO SUNWORKS LONGMO
REPORT PERIOD: MAY,1979

DAY TOTAL DIFFUSE
OF INSOLATION ISOLATION T
MONTH
BTU/SQ.FT ETU/SQ.FT
1 557 N
2 118 0
3 48 T
4 904
5 718 A
6 870 P
7 91 P
8 9 L
9 202 I
10 665 C
11 828 A
12 719 R
13 795 L
14 841 E
15 795
16 836
17 787
18 554
19 743
20 93
21 757
22 724
23 325
24 756
25 617
26 771
27 739
28 725
29 452
30 153
31 927
SUM 18118 N.A.
AVG 584 N.A.
NBS ID Q0OO

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


NT, COLCRADC


AMBIENT
TEMPERATURE
DEG F
52
38
36
4c
62
63
43
37
31
36
46
49
57
58
62
67
62
63
61
47
58
59
54
63
60
64
66
65
56
42
5C


53
N113


-------~---
DAYTIME
AMBIENT
TEMP
DEG F
62
35
37
60
72
77
46
40
35
43
58
58
69
69
76
80
77
71
*
44
67
71
57
*
72
75
81
*
67
41
56


61
-


RELATIVE
HUMIDITY
PERCENT
60
100
93
66
44
31
72
100
98
82
61
60
45
55
56
43
58
65
71
97
65
72
81
69
76
55
53
56
79
93
74


69
I-----------


WIND
DIRECTION
DEGREES
18
39
147
193
230
254
*
53
48
0
33
*
321
58
28
338
102
61
75
96
73
79
26
27
0

66
137

I ----- ----
49
N115


SOLAR /1051-79/05


WIND
SPEED
M.P.H.
5
7
7
3
5
10
9
9
9
2
6
4
6
4
5
7
4
4
5
9
3
5
3
4
8
1
4
3
7
5
3
'-------------

5
N114


71










SOLAR HEATING ANC COOLING CEMCNSTRATION PROGRAM
MONTHLY REPORT
PASSIVE SPACE HEATING


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LONGMONT, COLORADO


SOLAR/1051-79/05


DAY
O0
MON

-- I
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
----I
SUM
AVG
NBS


SPACE
HEATING
LOAD
MILLION
BTU
0.047
0.026
0.0541
0.085
0.064
0.038
0.044
0.041
0.119
0.086
0.0941
0.040
0.077
0.06 7
0.050
0.0311
0.071
0.007
0.0261
0. 014
0.llOi
0.057
0.001
0.0651
0.056
0.030
0.028
0.012
0.0641
0.059
0.129
1.706
0.055
Q402 i


SOLAR
E NE RGY
USED
MILLION
BTU
0.047
0.026
0.039
0.085
0.064
0.038
0.044
0.041
0.119
0.086
0.044
0.040
0.077
0.067
0.050
0.031
0.071
0.007
0.026
0. 014
0.110
0.057
0.001
0.065
0.056
0.030
0.028
0.012
0.064
0.059
0.129
1.642
0.052
Q400


CHANGE
IN STCRE
ENERGY
MILL ICN
BTU
-0.019
-0.066
-0.059,
0.030
0.028
0.037
-0. 053
-0.046
-0.033
0. CCS
-0.026
0.032
0. 045
0.041
0.043
0.037
0.031
.0 C4
-0.036
-0.056
0.01C
0.027
-0.037
0.047
0.011
0.026
0.016
0.020
-0.013
-0.059
O. OC
0.004

02020
Q202


AVERAGE
STORAGE
TEMP
DEG F

72.6
70.8
68.3
67.7
68.7
70.1
69.8
68.0
66.3
65.9
65.2
65.6
66.9
68.6
70.4
72.2
73.4
74.1
73.2
71.7
70. 5
71.4
71.3
71.7
72.8
73.4
74.1
75.1
75.2
73.8
72.9


70.7


AMB
TEMP
DEG

52
38
36
49
62
63
43
37
31
36
46
49
57
58
62
67
62
63
61
47
58
59
54
63
60
64
66
65
56
42
50i


53N
N113


WIND
AVG
DIR
DEG


WIND
AVG
SPEED
MPH

4.7
6.7
6.6
3.3
5.4
9.9
9.1
8.6
8.9
2.0
6.1
3.5
6.2
4.3
4.6
6.7
4.2
4.0
4.9
9.1
3.4
5.2
3.0
3.8
8.1
1.4
3.9
3.4
6.8
4.7
3.1
I------

5.3
N114


SOLA
FPR
LOAD
PER
CENT
1CO
100
73
100
100
100
100
100
100
100
47
1CO
1001
100
100i
100
100
100
100
100
100
100
100

100
100
100
100
100


96
N400
I ---


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


-a
00


181
39
147
193
230
254
53
48
0
33
*
3211
58
28
338
102
61
75
96
73
79
26
27
0
*
*
66
*
137


49
N115




.: ... ..... .... .. .. .. : .. ..
MONTHLY REPORT
PASSIVE SYSTEM ENVIRONMENT


SITE: COLORADO SUNWORKS
REPORT PERIOD: MAY,1979


LCNGMONT,


COLORACO


SOLAR /1051-79/05


C,
in

m
0




z
/s

-I
z
cl


'4D
4-.
iD
n


ID
0a
0
I-.
os
10


0


OB
0
ft
0
p


DAY
OF
MON








8
9 |
11
2
13
14



15
16
17
18
19



20
21
22
23
24
25
126
27
19
20


281
29
30
24
SUM
AVG
NB27
28
29
30
31
SUm
AVG
NBS


-I-----


BUILDING
COMFORT
ZONE
1
I

71
69
66
67
68
70
69
67
65
65
65
66
67
69
71
72
73
74
73
71
70
71
711
72
72
73
74
751
74
72
721


70


BLDG
COM F
ZONE
2

70
681
66
67
67
68
68
67
65
65!
65
66
67
69
701
71
72
72
71
70
70
71
71
71
71
721
72
73
73
71
72


69


BUILDING
TEMP
MI DN IGhT
DEG F

70
67
66
67
69
69
67
66
65
64
66
66
68
70
71
72
73
72
72
69
71
71
70
72
72
72
74
80
73
70

71

70


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


BUILDING
TEMP
6 AM
DEG F

69
69
66
65
66
67
68
67
65
64
64
64
65]
67
68
701
71
72
71
71
681
69
70
69
70
71
70
79
72
72
69


69


BUILDING
TEMP
NOON
CEG F

73
68;
65
68
69
70
68
67
65
66
64
67
681
70
72
73
74
73
71
70
691
72
71
73
73
731
74
82
75
71
72

70-
70


AM B
TEMP
DEG
F


BUILDING
TEMP
6 PM
CEG F

71
68
66
69
7C
71
68
67
65
66
66
68
69
71
73
74
75
74
73
69
72
73
71
74
73
75
76
83
74
71
73


711


INT ER IOR
RELATIVE
HUMIDITY
PERCENT

38
40
38
41
44
37
38
44
45
45
48
50
54
56
58
59
60
57
50
50
50
51
51
53
51
50
44
45
45
45
46

48-

-I


53
N113


61


DAYTIME
AMB
TEMP
DEG F

62
35
37
60
72
77
45
40
35
43
58
58
69
69
76
80
77
71
*
44
67
71
57
*
72
75
81
*
67
411
56


INCIDENT
SOL AR
ENERGY
MILL ION
BTU
0. 167
0.035
0.014
0.271
0.215
0.261
0.027
0.003
0.0601
0.199
0.248
0.216
0.238
0.252
0.238
0.251
0.236
0.166
0.223
0.028
0.227
0.217
0.097
0.227
0.185
0.231
0.222
0.217
0.135
0.046
0.278
5.430
0. 175
-


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


AVG
STOR
TEMP
DFG
F
73
71
68
68
69
70
70
68
66
66
65
66
67
69
70
72
73
74
73
72
71
71
71
72
73
73
74
75
75
74
73

71
----
71


- ---- ------






































































ii





























'I










4i



























II




.. .,

UNIVERSITY OF FLORIDA

3 1262 09052 4934




I




Full Text
xml version 1.0 encoding UTF-8
REPORT xmlns http:www.fcla.edudlsmddaitss xmlns:xsi http:www.w3.org2001XMLSchema-instance xsi:schemaLocation http:www.fcla.edudlsmddaitssdaitssReport.xsd
INGEST IEID EBZ6BKSHV_73FFFW INGEST_TIME 2014-04-10T01:25:06Z PACKAGE AA00013826_00002
AGREEMENT_INFO ACCOUNT UF PROJECT UFDC
FILES