Monthly performance report

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Material Information

Title:
Monthly performance report Design Construction
Uncontrolled:
Design Construction
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 -- Montana -- Bigfork   ( lcsh )
Solar houses -- Montana -- Bigfork   ( lcsh )
Solar water heaters   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
National solar data program.
General Note:
Monthly Catalog Number: gp 80010074
General Note:
National solar heating and cooling demonstration program.
General Note:
"SOLAR/1029-79/04" ; "SOLAR/1029-79/05."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027069400
oclc - 05956052
System ID:
AA00013810:00001


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D 2 S6 L .-7/u/l 2, -


1', !


SOLAR/1029-79/04

Monthly


Performance


--cP'


Report


DESIGN CONSTRUCTION
APRIL 1979


U.


S.


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


4284




































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.






MONTHLY PERFORMANCE REPORT


DESIGN CONSTRUCTION

APRIL 1979

I. SYSTEM DESCRIPTION


The Design Construction site is a single-family residence in Bigfork, Montana.
The home has approximately 1800 square feet of conditioned space. Solar
energy is used for space heating the home and preheating domestic hot water
(DHW). The solar energy system has an array of flat-plate collectors with a
gross area of 792 square feet. The array faces south at an angle of 45
degrees to the horizontal. Water is the transfer medium that delivers solar
energy from the collector array to storage and from storage to the space
heating and hot water loads. This water is drained from the collector when
the collector pump is not operating. Solar energy is stored in a 1400-gallon
water tank located in the conditioned space. The cylindrical tank has 6-inch
concrete walls with 2-inch expanded polyurethane insulation. Preheated city
water is stored in a 65-gallon DHW tank. When solar energy is insufficient
to satisfy the space heating load, an electrical heating element in the
boiler provides auxiliary energy for space heating. Similarly, an electrical
heating element in the DHW tank provides auxiliary energy for water heating.
Solar energy in the storage tank is supplemented by auxiliary energy provided
by a hydro-heater fireplace which has a heat-exchanger water jacket around
the chimney. When the fireplace is used, water is circulated from the storage
tank through the fireplace and chimney heat exchanger, thereby accumulating
additional energy which is returned to the storage tank. Energy from the
storage tank is transferred to the DHW tank through an in-tank heat exchanger.
Hot water used for space heating is passed from storage through the electric
boiler and then through a four-zone hydronic heating system. Two fans are
installed in the small enclosed chamber above the fireplace in which the
fireplace pump (P4) and the fireplace control sensor are located. These fans
are used to cool the chamber ambient and to circulate the warm chamber air
into the living space. Both fans operate in parallel with the fireplace
pump. The system, shown schematically in Figure 1, has four modes of solar
operation, each of which is independent of the others.


1 4284











* 1001 COLLECTOR PLANE TOTAL INSOLATION
ST001 OUTDOOR TEMPERATURE
. T600 INDOOR TEMPERATURE


Figure 1. DESIGN CONSTRUCTION ASSOCIA TES SOLAR ENERGY SYSTEM SCHEMA TIC














* 1001 COLLECTOR PLANE TOTAL INSOLATION
I T001 OUTDOOR TEMPERATURE
STO00 INDOOR TEMPERATURE


BASEBOARD
HEATED RADIATOR UNITS
SPACE
L.---------------------------------


Figure 1. DESIGN CONSTRUCTION ASSOCIATES SOLAR ENERGY SYSTEM SCHEMA TIC


FLOW
BALANCE
VALVE













* 1001 COLLECTOR PLANE TOTAL INSOLATION
. T0 OUTDOOR TEMPERATURE
W T600 INDOOR TEMPERATURE


S
L.------------------------------- T
I 1- ZONE A



[ ZONE B



T405
ZONE D



BASEBOARD
HEATED RADIATOR UNITS
SPACE
L- ,.-,,I~,,~~


Figure 1. DESIGN CONSTRUCTION ASSOCIATES SOLAR ENERGY SYSTEM SCHEMATIC






Mode 1 Collector-to-Storage: This mode activates when there is a tempera-
ture difference of 90F between the control sensor located in the collector and
the control sensor in the storage tank. Water is circulated from the storage
tank through the collector and back to the tank. This circulation continues
until the temperature difference between the two control sensors decreases to
30F, at which point the circulating pump turns off. When the pump stops
operating, water is drained from the collector and returned to the storage
tank.

Mode 2 Storage-to-Space Heating: This mode activates when any of the four
zones demand space heating. The thermostat of the zone demanding heat will
activate the solenoid-operated control valve for that zone. The thermostat
will also activate the circulating pump to allow heated water to circulate
from the storage tank, through the boiler, to the appropriate zone (via its
control valve) and back to the storage tank. Water continues to circulate as
long as any zone demands heat. The electric boiler will provide auxiliary
energy if the temperature of the water circulating through the boiler drops
below 1100F (set point). When the space heating demand is satisfied, the
circulating pump turns off and all open-zone control valves close.

Mode 3 Storage-to-DHW Heat Exchanger: This mode activates when the tempera-
ture difference between a control sensor in the storage tank and a control
sensor on the surface of the DHW tank reaches 90F and terminates when the
temperature difference drops to 50F. If the water temperature in the hot
water tank falls below the setting of its thermostat, the electric immersion
heater turns on to provide auxiliary energy to the water in the hot water
tank. This mode also terminates if the temperature in the storage tank, as
indicated by another control sensor in the storage tank, falls below 80F
(set point).

Mode 4 Fireplace-to-Storage: This mode activates when there is a tempera-
ture difference of 90F between a control sensor located in the fireplace and
another control sensor in the storage tank. (This occurs when the fireplace
is being used.) The pump turns on to circulate water from the storage tank
through the fireplace and the chimney heat exchanger, thereby accumulating


5 4284







energy which is returned to storage. This mode continues until the tempera-
ture difference between the two control sensors drops to 30F, at which point
the pump turns off and the mode terminates. Both fans in the enclosed chamber
above the fireplace also operate in parallel with the pump while in this mode.



II. PERFORMANCE EVALUATION



INTRODUCTION


The site was occupied in April and the solar energy system operated continuously
during the month. Solar energy satisfied 57 percent of the DHW requirements
and 61 percent of the space heating requirements. The solar energy system
provided an electrical energy savings of 4.8 million Btu. Flow sensor anomaly
caused the calculated space heating load to be higher than it actually is-for
the first 11 days of the month. During the remainder of the month, the flow
had to be estimated during intermittent failure of the same sensor. These
anomalies also contributed to the erroneously high value for storage effi-
ciency. The performance factors are discussed below and presented in the
accompanying report forms.



WEATHER CONDITIONS


During the month, total incident solar energy on the collector array was
27.5 million Btu for a daily average of 1157 Btu per square foot. This was
below the estimated average daily solar radiation for this geographical area
during April of 1612 Btu per square foot for a south-facing plane with a tilt
of 45 degrees to the horizontal. The average ambient temperature during
April was 410F as compared with the long-term average for April of 420F. The
number of heating degree-days for the month (based on a 65F reference) was
681, as compared with the long-term average of 690.


6 4284






THERMAL PERFORMANCE


System During April the solar energy system performed approximately the same
as expected. The expected performance was determined from a modified f-chart
analysis using measured weather and subsystem loads as inputs. Solar energy
collected was 8.2 million Btu versus an estimated 5.8 million Btu. Solar
energy used by the system was estimated by assuming that all energy collected
would be applied to the load. Actual solar energy used was 5.0 million Btu.
System total solar fraction was 60 percent versus an estimated 71 percent.


Collector The total incident solar radiation on the collector array for the
month of April was 27.5 million Btu. During the period the collector loop was
operating, the total insolation amounted to 20.6 million Btu. The total
collected solar energy for the month of April was 8.2 million Btu, resulting
in a collector array efficiency of 30 percent, based on total incident insola-
tion. Solar energy delivered from the collector array to storage was 5.1 million
Btu. Energy loss during transfer from the collector array to storage was 3.1
million Btu. This loss represented 38 percent of the energy collected.
Operating energy required by the collector loop was 0.12 million Btu.


Storage Solar energy delivered to storage was 5.1 million Btu and auxiliary
energy contribution to storage from the fireplace was 0.87 million Btu. There
were 10.5 million Btu delivered from storage to the DHW and space heating
subsystems. The storage efficiency was 189 percent: This is calculated as
the ratio of the sum of the energy removed from storage and the change in
stored energy, to the energy delivered to storage. The average storage tempera-
ture for the month was 1340F.


DHW Load The DHW subsystem consumed 2.3 million Btu of solar energy, 0.73
million Btu of auxiliary energy from storage and 0.77 million Btu of auxiliary
electrical energy to satisfy a hot water load of 1.7 million Btu. The solar
fraction of this load was 57 percent. Losses from the DHW subsystem were 2.1
million Btu. The DHW subsystem consumed a total of 0.10 million Btu of operating
energy, resulting in an electrical energy savings of 2.2 million Btu. A daily


7 4284






average of 70 gallons of DHW was consumed at an average temperature of 149F
delivered from the tank.


Space Heating Load The space heating subsystem consumed 2.7 million Btu of
solar energy and 1.8 million Btu of auxiliary energy from storage in order to
satisfy a space heating load of 4.4 million Btu. The solar fraction of this
load was 61 percent. Losses from the space heating subsystem were 0.069
million Btu. The space heating subsystem consumed a total of 0.039 million
Btu of operating energy, resulting in an electrical energy savings of 2.6
million Btu.



OBSERVATIONS


Problems with the flowmeter (W400) of the storage/space heating loop continued
throughout the month. A Boeing site visit on April 11 resulted in removal of
debris in the meter. This debris caused the flowmeter to stick intermittently
and to give erroneous high readings. However, on April 14 the same meter
intermittently indicated zero flow even through data shows that the related
pump (P3) was operating. Sensor failure occurs on approximately 28 percent of
the scans when flow does occur. An estimated flow value was used on the scans
where W400 failed. Therefore, performance factors derived from this flow
(energy output from storage and heating load) have higher values than actual
readings during the first 11 days of the month and are based, in part, on
estimated flows during the remainder of the month.


Storage efficiency continued to exceed 100 percent by a considerable amount
and contributed to the high value for energy output from storage (discussed
above). Storage efficiency was 137 percent for the portion of the month
following the flowmeter repair on April 11. Analysis will continue in order
to determine the causes of the storage energy imbalance.


8 4284







ENERGY SAVINGS


The solar energy system provided a net electrical energy savings of 4.8
million Btu. The DHW subsystem provided an electrical energy savings of 2.2
million Btu, while the space heating subsystem contributed an electrical
energy savings of 2.6 million Btu.



III. ACTION STATUS


The flow sensor (W400) in the storage/space heating loop must be fixed.
Boeing has not scheduled a site visit at this time.


9 4284







SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SOLAR/1029-79/04


SITE: DESIGN CONSTRUCTION, BIG FORK. MONTANA
REPORT PERIOD: APRIL 1979


SITE/SYSTEM DESCRIPTION:
THE DESIGN CONSTRUCTION SOLAR ENERGY SYSTEM PROVIDES SPACE HEATING AND
DOMESTIC HOT WATER. THE SOLAR ENERGY SYSTEM USES WATER AS THE COLLEC-
TION. STORAGE AND TRANSFER MEDIUM. HOT WATER FROM THE STORAGE TANK IS
TRANSFERRED TO THE DHW TANK THROUGH AN IN-TANK HX. ELECTRICAL ENERGY
-SUPPLIES AUXILIARY ENERGY FOR HEATING T-E DHWW HOT WATER FROM THE
STORAGE TANK FOR SPACE HEATING PASSES THROUGH AN ELECTRIC BOILER THEN
THROUGH A FOUR ZONE HYDRON.IC HEATING SYSTEM.


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 ENERGY
AUX. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HCT WATER
1.708
57
2.341
0.100
1.496
0 .769
N.A.
2.241
N.A.


HEATING
4.359
61
2.668
0.039
1 760
0.000
N.A.
2. 629
N.A.


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


27.483 MILLION BTU
34701 BTU/SQ.FT.
8.245 MILLION BTU
10410 BTU/SO.FT.
41 DEGREES F
71 DEGREES F
0.18
0.119 MILLION BTU
0.258 MILLION BTU
10.250 MILLION BTU


SYSTEM TOTAL
6.087 MILLION BTU
60 PERCENT
5.009 MILLION BTU
0.258 MILLION BTU
3.256 MILLION BTU
0.769 MILLION BTU
N.A. MILLION BTU
4.758 MILLION BTU
N.A. MILLION 8TU


SYSTEM PERFORMANCE FACTOR:


1 779


* 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 PROGFAMFEBRUARY 28.1978,
SOLAR/0004-78/18








SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: DESIGN CONSTRUCTION, BIG FORK, MCNTANA
REPORT PERIOD: APRIL.1979


SOLAR/1029-79/04


SITE/SYSTEM DESCRIPTION:
THE DESIGN CONSTRUCTION SCLAR ENERGY SYSTEM PROVIDES SPACE HEATING AND
DOMESTIC HOT WATER. THE SOLAR ENERGY SYSTEM USES WATER AS THE COLLEC-
TIONh STORAGE AND TRANSFER MEDIUM. HOT WATER FROM THE STORAGE TANK IS
TRANSFERRED TO THE OHW TANK THROUGH Ah IN-TANK HX* ELECTRICAL ENERGY
SUPPLIES AUXILIARY ENERGY FOR HEATING THE DHW. HOT WATER FROM THE
STORAGE TANK FOR SPACE HEATING PASSES THROUGH AN ELECTRIC BOILER THEN
THROUGH A FOUR ZONE HYDRONIC HEATING SYSTEM.


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


28.994
394060
8.699
118222
5
22
0.18
0.126
0.272
10.814


GIGA JOULES
KJ/SQ.M.
GIGA JOULES
KJ/SQ.M.
DEGREES C
DEGREES C


GIGA
GIGA
GIGA


JOULES
JOULES
JOULES


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


HOT WATER
1.802
57
2.470
0.105
1.578
0.812
N.A.
2.364
N.A.


HEATING
4.599
61
2.815
0.041
1.857
0.000

2.774
N.A.


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


SYSTEM TOTAL
6.421 GIGA JOULES
60 PERCENT
5.284 GIGA JOULES
0.272 GIGA JOULES
3.435 GIGA JOULES
0.812 GIGA JOULES
N.A. GIGA JOULES
5.020 GIGA JOULES
N.A. GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


1 .779


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

REFERENCE: USER'S GUIDE TO THE MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SOLAR DATA PRCGRAM.FEBRUARY 28.1978,
SOLAR/0004-78/18






SOLAR HEATING AND CCOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)


SOLAR/1029-79/04


SITE: DESIGN CONSTRUCTION, BIG FORK, MONTANA
REPORT PERIOD: APRIL,1979


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

SUM

AVG

NBS ID


INCIDENT
SCLAR
ENERGY
NILLICN
BTU

0.747
1.126
0.452
0.334
1.175
1.010
0.758
1.247
0.159
0.260
1.821
1.366
0.461
1.038
0.904
0.895
1.071
1.006
0.994
1 C69
1.341
0.245
0.274
0.840
0.914

*
1.745
1.368
1.032

27.483

0.916

Q001


AMBIENT
TEMP


DEG- F

29
31
35
38
44
43
41
43
38
33
36
38
39
40
40
46
45
39
39
38
40
42
43
41
42

53
51
49


41

N113


ENERGY
TO
LOADS
MILLION
BTU

0.486
0.431
0.497
0 457
1.021
0.149
0.147
0.240
0.084
0.641
0.379
0.201
0.121
0 237
0.132
0.021
0.264
0.176
0.122
0.103
0.123
0.054
0.219
0.096
0.181
*
*
0.103
0.102
0.208

7.495

0.250


AUX
THERMAL
TO ECSS
MILLION
BTU

0.170
-0.000
0.270
0.093
0.000
-0.018
-0.000
0.000
0 065
0.230
-0.001
-0.014
-0.001
-0.009
-0.004
-0 004
0.000
-0.000
-0.003
0.000
-0.003
0.000
-0.001
0.042
-0.002
*
-0.004
0.000
0.000

0.865


ECSS
ENERGY
REJECTED
MILLION
BTU
---------------~-
N
0
T

A
P
P
L
I
C
A
B
L
E


I 0.119 J N.A.


0.029 0.004


-----I...............


102 I------


N.A.
I------------


ECSS
OPERATING
ENERGY
MILLION
BTU

0.004
0.006
0 002
0.001
0.006
0.004
0.003
0.007
0.000
0.002
0.008
0.005
0.001
0.005
0.004
0.003
0.005
0.005
0.004
0.004
0.006
0.000
0.000
0.007
0.005


0.007
0.005
0.004


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


ECSS SOLAR
CONVERSION
EFFICIENCY


0.367
0.205
0.605
0 684
0.437
0.090
0.123
0.130
0.365
1.609
0.125
01 07
0.197
0.171
0.115
0.019
0.207
0.152
0.108
0.086
3.083
0.200
0.731
0.102
0 179


0.054
0.069
0.189
------------


0.182

N111


10






SOLAR i-EATING AND CCCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE


SITE: DESIGN CONSTRUCTION, BIG FORK, MONTANA
REPORT PERIOD: APRIL,1979


SOLAR/1029-79/04


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
23
29
30

SUM

AVG

NBSID


INCIDENT
SOLAR
ENERGY
MILLION
BTU

0.747
1.1216
0.452
0.334
1.175
1.010
0.758
1 247
0.159
0.260
1 821
1.366
0.461
1 038
0.904
0.895
1.071
1.006
0.994
1 069
1.341
0.245
0.274
0.840
0.914
4
1.745
1.368
1.032

27.483

0.916

0001


OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU

0.465
0.996
0.038
0.000
1.014
0.821
0.527
1.102
0.000
0.000
1.662
1.077
0.165
0 807
0.693
0.599
0.943
0.797
0.860
0.818
1.066
0.000
0.023
0.701
0.689

1.489
1.092
0.803

20.622

0.687


COLLECTED
SOLAR
ENERGY
MILLION
BTU

0.164
0.467
-0.017
0.000
0.450
0.336
0.229
0.408
0.000
0.000
0.645
0.615
0. 0C8
0.226
0.259
0.239
0.476
0.317
0.307
0.322
0.339
0.000
-0.008
0.267
0.266

0.589
0.458
0.336

8.245

0.275


0100


i----------
DAYTIME
AMBIENT
TEMP
DEG F

31
*
38
40
*
45
51
*
35
42
43
44
45
51
47
45

42
47

44
47

:6
62
62
56


46

----------


-~I
COLLECTOR
ARRAY
EFFICIENCY


0.220
0.415
-0.039
0.000
0.383
0.332
0.302
0 327
0.000
0.000
0.354
0.450
0.017
0.218
0 286
0 267
0,445
0.315
0.309
0 301
0.253
0.000
-0.030
0.318
0.291

0.338
0.335
0.325


0.300


N100


* DENOTES UNAVAILABLE CATA.
I DENOTES NULL DATA.
h.A. DENOTES NOT APPLICABLE DATA.






SOLAR EATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
STORAGE PERFORMANCE


SITE: DESIGN CONSTRUCTION, BIG FORK, MONTANA
REPORT PERIOD: APRIL,1979


SOLAR/1029-79/04


DAY
OF
MCNTH



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

SUM

AVG

NBS ID


ENERGY
TO
STORAGE
MILLION
BTU

0.201
0.307
0 235
0 093
0.311
0.230
0.126
00267
0.065
0.230
0.459
0. 340
-0.001
0.135
0.176
0.140
0.339
0.218
0.171
0.201
0.180
0.000
-0.017
0.181
0 145
*
*
0.316
0.298
0.211

5.955

0.199

0200


10.497


0.350

0201


ENERGY
FROM
STORAGE
MILLION
BTU

0.564
0.503
0.622
0 566
1.186
0.279
0.241
0.351
0.183
0.750
0.499
0.377
0.240
0.310
0.227
0.063
0.355
0.282
0.174
0.197
0.232
0.084
0.269
0.137
0.250
*
*
0.258
0.246
0.351


CHANGE
IN STORED
ENERGY
MILLICN
BTU

0.213
-0. 013
0.153
-0.053
0.088
0.082
-0. 048
0.080
-0.079
-0.042
0.230
0.010
-0.213
-0.016
0.019
0.027
-0.022
-0,007
0.009
0.045
0.044
-0.155
-0.202
0.096
0.011
*
*
0.497
0.029
-0.076

0.760

0.025

0202


STORAGE
EFFICIENCY


STORAGE
AVERAGE
TEMP
DEG F


111
116
121
124
126
138
134
138
136
128
140
151
140
130
133
135
134
132
132
134
141
135
119
114
119
*
*
163
165
164


134
134
----------I


1.890

N108


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


3.860
1.596
3.301
5.494
4.092
1.565
1.537
1.617
1 603
3.083
1.588
1 140
-20 385
2.178
1 398
0.643
0.985
1.259
1 070
1 205
1 529
1.000
-3.928
1.287
1.803
*
*
2.387
0. 923
1.304





SOLAR HEATING AND CYCLING DEMONSTRATION PROGRAM


MONTHLY REPORT
HOT WATER SUBSYSTEM


SITE: DESIGN CONSTRUCTION, BIG FORK, MCNTANA
REPORT PERIOD: APRIL, 1979


SOLAR/1029-79/04


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

SUM

AVG

NBS
I- -


HOT
WATER
LOAD
MILLION
BTU

0.0361
0.081
0 080
0.077
0.094
0 078
0.035
0.046
0.028
0.0431
0.036
0.085
0.019
0.057
0.0591
0.010
0 134
06099
0:044
0.036
0.041
0.023
0 047
C. 080
0.098


0.029
0.029
0.073

1.708
-I--
------- n-
0.0571

Q302


SOLAR
FR.OF
LOAD
PER
CENT

27
37
40
37
37
50
51
55
56
51
51
63
66
58
59
62
64
68
70
67
73
73
65
51
60

*
84
90
93


57

N300


SOLAR
ENERGY
USED
MILLION
BTU

0 038
0.053
0.086
0 048
0 065
0. 091
0.0301
0.079
0.029
0.039
0.C59
0.137
0.040
0.050
0.092
0.017
0.188
0.153
0.076
0.076
0.079
0.024
0 0491
0.078
0.124

*
0.095
0.094
0.198

2.341

0.078

Q300


OFER
ENERGY

MILLION
BTU

0.003
0.002
0.004
0.004
0.004
0.004
0.003
0.003
0.003
0.003
0.003
0.006
0.004
0.003
0.004
0.001
0.004
0.004
0.002
0.004
0.004
0.001
0.0021
0.002
0.003
*

0.004
0.004
0.004

0.100

0.003

0303


AUX
THERMAL
USED
MILLI CN
BTU

0 065
0.080
0.124
0.088
0.103
0.077
0.031
0.054i
0.022
0.046
0.046
0.067
0 0221
0.043
0.056
0.012
3. C96
0.070
0.032
0.029
0.021
0.015
0.032
0.066
0.071


0.009
0.008
0.013

1.496

0.050

0301
I-----------


AUX
FCSSIL
FUEL
MILLION
BTU


AUX
ELECT
FUEL
MILLION
BTU

0.032
0 043
0.049
0.041
0.046
0.019
0.013
0.020
0.009
0.024
0.014
0.017
0.008
0.027
0 032
0.008
0.061
0.047
0.021
0.020
0.013
0.013
0.027
0.057
0.058


0.000
0.000
0.000

0.769

0.026

0305


N.030A
0306


ELECT
ENERGY
SAVINGS
MILLION
BTU

0.035
0.050
0.081
0.044
0.060
0 0O86
0 026
0.076
0.0 26
0.036
0.056
0.131
0.036
0 .047
0.088
0.016
0.184
0. 148
0.073
0.072
0.075
0 0231
0.047
0.0761
0.120


0.090
0.091
0.195

2.241

0.075

0311


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P|
P
L
II
C
A
B
L
Ei















N.A.

N.A.

0313


SUP.
WAT.
TEMP
DEG
F

61
59
56
621
66
63
701
63
E I
58
58
631
69
631
59
68
62
63
631
591
68
57
67
65
65


641
62
60'


63
N305
N305


HOT
WAT.
TEMP
DEG
F

147
151
152
146
146
149
1461
146
147
152
152
150
146
151
151
147
147
151
154
152
147
151
147
149
147


154
152
154


149
N307
N307


HOT
WATER
USED

GAL

401
91
90
101
125
90
41
54
31
49
41
97
24
65
74
13
166
129
50
421
50
29
56
110
136


341
36
89

2092
------- I--
70
N308


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


N.A.






SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE hEATING SUBSYSTEM


SOLAR/1029-79/04


SITE: DESIGN CONSTRUCTION. BIG FORK, MONTANA
REPORT PERIOD: APRIL 1979


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

SUM

AVG

NBS


SPACE
HEATING
LOAD
MILLION
BTU

0.411
0.347
0.334
0.351
0.884
0.000
0.100
0.113
0.031
0.582
0.279
0.013
0 068
0.164
0.015
0.000
0.040
0.000
0.037
0.018
0.033
00028
0.175
0.009
0.041
*

0.000
0.000
-0.006

4.359

0.145

0402


SOLAR
FR .OF
LOAD
PCT


57
51
561
52
51
0
64
74
102
65
57
72
74
78
82
0
84
0
65
87
97
88
87
84
95
*
*
0
0
0


61

N400


SOLAR
ENERGY
USED
MILLION
BTU

0.236
0.178
0.187
0.181
0.449
0.000
0.064
0.083
0.029
0.380
0.169
0.010
0.050
0.127
0.013
0.000
0.034
0.000
0.032
0.016
0.032
0 024
0.152
0.008
0.039
*

0.000
0.000
-0.003

2.668

0.089

0400


OPER
ENERGY

MILLION
BTU

0.004
0.003
0.002
0.005
0e005
0.000
0.000
0 000
0.000
0.004
0.002
0.000
0.001
0.002
0.000
0.000
0.001
0.000
0.001
0.001
0. 300
0.001
0.005
0.000
0.000
*
*
0.000
0.000
0.000

0.039

0.001

0403


AUX
THERMAL
USED
MILLION
BTU

0 179
0.163
0 149
0.182
0.450
0.000
0.036
0.044
0.014
0.200
0.119


0.043
0.004
0.000
0.007;
0.000
0.005
0,0021
0.004
0.032
0.014
0.001


0.000
0.000
-0.000
-0. 030'
---- 1
1.760

0.059

0401


AUX
ELECT
FUEL
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
0.300
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


AUX
FOSSIL
FUEL
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E















N.A.

N.A.I

Q410


ELECT
ENERGY
SAVINGS
MILLION
BTU

0.233
0.175
0.185
0 179
0.444
0.000
0.063
0.083
0. 029
0.376
0.166
0.009
0 049
0.125
0.012
0.000
0.033
0.000
0.031
0 015
0.032
0.024
0.147
0.007
0.039
*
*
0.000
0.000
-3.003

2.629

0.088

0415


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


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E















N.A.

N.A.

0417


BLDG
TEMP

DEG.
F

67
70
69
67
73
73
71
72
70
69
72
72
71
72
72
72
74
73
73
72
72
73
70
71
70

76
76,
73


71

N406


AMB
TEMP

DEG.
F

29
31
35
38
44
43
41
43
38
33
36
38
39
40
40
46
45
39
39
38
40
42
43
41
42
*
*
53
51
49


41

N113






SOLAR HEATING ANO COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENVIRONMENTAL SUMMARY

SITE: DESIGN CONSTRUCTION, BIG FORK, MONTANA
REPORT PERIOD: APRIL,1979

DAY TOTAL DIFFUSE AMBIENT DAYTIME RELATIVE
OF INSOLATION INSOLATION TEMPERATURE AMBIENT HUMIDITY DIRI
MONTH TEMP
BTU/SQ.FT BTU/SQ.FT DEG F DEG F PERCENT DE
----- -- --------------- ----------I--------
1 943 N 29 31 N
2 1422 0 31 0
3 570 T 35 38 T
4 422 38 40
5 1484 A 44 A
6 1276 P 43 P
7 957 P 41 45 P
8 1574 L 43 51 L
9 200 I 38 I
10 329 C 32 35 C
11 2299 A 36 42 A
12 1725 B 38 43 9
13 581 L 39 L
1.4 1310 E 40 44 E
15 1141 40 45
16 1131 46 51
17 1353 45 47
18 1271 39 45
19 1254 39 *
20 1350 38 42
21 1693 4C 47
22 309 42 *
23 346 43 44
24 1060 41 47
25 1154 42 *
26 "*
27 *
28 2203 53 62
29 1727 1 62
30 1303 49 56

SUM 34701 N.A.- -

AVG 1157 N.A. 41 46 N.A.

NBS ID Q01 NI13


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


SOLAR/1029-79/04


MIND
SECTION

GREES

N
0
T

A
P
P
L
I
C
A
B
L
E


N.A.

N115


WIND
SPEED

M.P.H.

N
O
T

A
P
P
L
I
C
A
B
L
E

















N. A.

N114












UNIVERSITY OF FLORIDA
i11111 111ll 111 II I 1111 I liII III l 1111111I
3 1262 09052 6368




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