Monthly performance report

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Material Information

Title:
Monthly performance report Saddle Hill trust lot 77
Added title page title:
Saddle Hill trust lot 77
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 -- Massachusetts -- Medway   ( lcsh )
Solar houses -- Massachusetts -- Medway   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
"SOLAR/1040-79/01" ; "SOLAR/1040-79-02" ; "SOLAR/1040-79/03" ; "SOLAR/1040-79/04" ; "SOLAR/1040-79/05."
General Note:
National solar heating and cooling demonstration program, National solar data program.
General Note:
Monthly Catalog Number: gp 80007760
General Note:
"SOLAR/1040-79/01" ; "SOLAR/1040-79/03" ; "SOLAR/1040-79/04" ; "SOLAR/1040-79/05."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027035022
oclc - 05855572
System ID:
AA00013795:00004


This item is only available as the following downloads:


Full Text
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SOLAR/1040-79/05

Monthly

Performance

Report

SADDLE HILL TRUST
LOT 77
MAY 1979


U.S. Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


~, c'I


I ""-,,, ...


































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


SADDLE HILL TRUST
LOT 77

MAY 1979


I. SYSTEM DESCRIPTION


Saddle Hill Trust Lot 77 is a single-family residence in Medway, Massachusetts.
Solar energy is used for preheating incoming city water. The solar energy
system has an array of flat-plate collectors with a gross area of 78 square
feet. The array faces south at an angle of 38 degrees to the horizontal. Air
is used as the medium for delivering solar energy from the collector array to
an air-to-liquid heat exchanger located in the collector air duct. Water is
the medium used to transport solar energy from the heat exchanger to storage.
Solar energy is stored in the basement in a 120-gallon preheat storage tank.
This preheated city water is supplied, on demand, to a conventional 40-gallon
domestic-hot-water (DHW) tank. When solar energy is insufficient to satisfy
the hot water requirements, the gas-driven DHW heater provides auxiliary
energy for water heating. The system, shown schematically in Figure 1, has
two modes of solar operation.


Mode 1 Collector-to-Storage: This mode activates when the difference-be-
tween the temperature of the collector air and the temperature of the water in
the preheat tank exceeds 400F and the temperature of the water in the tank is
below 1400F. Both the fan and pump go on. This mode continues until the
temperature difference drops to 20F.


Mode 2 Storage-to-Space Heating: This mode activates when there is a demand
for hot water. Hot water from the top of the preheat tank is transferred to
the DHW tank to replace water removed. Simultaneously, city water is auto-
matically supplied to the preheat tank.

















1001 COLLECTOR PLANE TOTAL INSOLATION

A T001 OUTDOOR TEMPERATURE


T150





0



T250


Sv T100 \ T200


'---+

T350 T351


120-GAL
PREHEAT DHW
TANK HEATER


DOMESTIC
HOT WATER


is


Figure 1. SADDLE HILL TRUST, LOT NO. 77, SOLAR ENERGY SYSTEM SCHEMA TIC









II. PERFORMANCE EVALUATION


INTRODUCTION


The site was occupied in May and the solar energy system operated continuously
during the month. Total solar energy collected was 1.0 million Btu and the
total solar energy used was 0.72 million Btu or 72 percent of the collected
energy. Solar energy satisfied 35 percent of the DHW requirements. The
solar energy system provided a fossil fuel energy savings of 1.1 million
Btu and incurred an electrical energy expense of 0.14 million Btu.



WEATHER CONDITIONS


During the month, total incident solar energy on the collector array was
3.2 million Btu for a daily average of 1315 Btu per square foot. This was
below the estimated average daily solar radiation for this geographical
area during May of 1502 Btu per square foot for a south-facing plane with a
tilt of 38 degrees to the horizontal. The average ambient temperature
during May was 610F as compared with the long-term average for May of 590F.



THERMAL PERFORMANCE


System During May 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 input.
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 0.72
million Btu versus an estimated 0.77 million Btu. System total solar
fraction was 35 percent versus an estimated 38 percent.










Collector The total incident solar radiation on the collector array for
the month of May was 3.2 million Btu. During the period the collector loop
was operating, the total insolation amounted to 2.8 million Btu. The total
collected solar energy for the month of May was 1.0 million Btu, resulting
in a collector array efficiency of 32 percent, based on total incident
insolation. Operating energy required by the collector loop was 0.14
million Btu.


DHW Load The DHW subsystem consumed 0.72 million Btu of solar energy and
2.2 million Btu of auxiliary fossil fuel energy to satisfy a hot water load
of 1.7 million Btu. The solar fraction of this load was 35 percent.
Losses from the DHW subsystem were 0.34 million Btu. A daily average of 75
gallons of DHW was consumed at an average temperature of 1390F delivered
from the tank.



OBSERVATIONS


No significant observations to report.



ENERGY SAVINGS


The solar energy system provided fossil fuel energy savings of 1.1 million
Btu, while incurring an electrical energy expense of 0.14 million Btu.



III. ACTION STATUS


No significant items pending.








SOLAR HEATING AND COOLING DEMONSTRATION P-ROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: SADDLE HILLS TRUST LOT #77, MEDWAY,MA
REPORT PERIOD: MAY,1979


02053


SOLAR/1039-79/05


SITE/SYSTEM DESCRIPTION:
THE SADDLE HILL TRUST, LOT 77, SOLAR SYSTEM PROVIDES YEAR ROUND HOT
WATER TO A SINGLE FAMILY DETACHED HOUSE. THF COLLECTOR IS A
FOJR-PANEL AIR COLLECTOR. STORAGE IS A 120 GALLON WATER TANK.
AUXILIARY HOT WATER IS PROVIDED BY A GAS DOMESTIC HOT WATER HEATER.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY
AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
FCSS SOLAR CONVERSION ErICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMrfn


3. 180
40769
1.018
13055
61
N.A.
0.23
0.142
0. 142
3.349


MILLION BTU
BTU/SQ .T.
MILLION RTU
BTU/ S .F T.
DFGPEES F
DEGREES F
MILLION BTU
MILLION BTU
MILLION BTU


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


HOT WATER
1.700
35
0.721
N.A.
1.313
N.A.
2.189
-0.142
1.092


HFAT TNC
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.
N.A.


SYSTEM TPTAL
1.701 MILLION BTU
35 PERCENT
0.721 MILLION BTU
0.142 MILLION BTU
1.313 MILLION RTU
N.A. MILLION BTU
2.189 MILLION BTU
-0.142 MILLION BTU
1.002 MILLION BTU


SYSTEM PERFORMANCE FACTOR:


0.639


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












SOLAR HFATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORTT
SITF SUMMARY


SITE: SADDLE HILLS TRUST LOT #77, MEDWAY,MA 02053
REPORT PERIOD: MAY,1979


SOL AR/1039-70o/0


SITE/SYSTEM DESCRIPTION:
THE SADDLE HILL TRUST, LOT 77, SOLAR SYSTEM PROVIDES YFCP POUND -OT
WATER TO A SINGLE FAMILY DETACHED HOUSE. THE COLLECTOR IS A
FOUR-PANEL AIR COLLECTOR. STORAGE IS A 120 GALLON WATER TANK.
AUXILIARY HOT WATER TS PPOVID.ED BY A GAS DOMFSTIC HOT WAT=P HEATER.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY
AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVEoSIO!N E=ICIcNCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMEn


3.355
462973
1.074
148256
16
N. A.
0.23
0.150
0.150
3. 533


GIGA JOULES
KJ/SQ. M.
GIGA JOULFS
KJ/SQ.M.
DFGPEES C
DEGREES C
GIGA JCUL S
GIGA JOULES
GIGA JOULFS


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


HOT WATER
1.794
35
0.761
N.A.
1.385
N.A.
2.309
-0.150
1.152


HEATING
N.A.
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.
N.A.


SYSTEM TOTAL
1.794 GIrA JOULFS
35 PERCENT
0,761 GTGA JOILFS
0.150 GIGA JOULES
1.385 GIGA JOULES
N.A. GIGA JOULE S
2.30Q GIGA JOULES
-0.150 GIGA JOULES
1.152 GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


0.630


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






SLAP HEATING AND COOLING DEMONSTRATION PROGRAM
MONTHLY REPORT
FNFRGY COLLECTION AND STORAGF SUBSYSTEM (ECSS)


SITE: SADDLE HILLS TRUST LOT #77, MEDWAY,MA
REPORT PERIOD: MAY,1979


02053


SOLAP/1039-79/05


DAY
OF
MONTH



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
SOLAR
ENERGY
MILLION
BTU
0.152
0.185
0.134
0.131
0.189
0.147
0.176
0.170
0.160
0.155
0.169
0.062
0.033
0.021
0.021
0.113
0.133
0.057
0. 0?0
0.030
0.073
0.176
0.032
0.010
0.027
0.064
0.151
0.025
0.148
0.026
0.180
3.180
0. 103
Q001


AMBIENT
TEMP

DEG-F
57
52
54
63
55
54
62
67
79
82
60
60
64
62
62
65
61
59
54
56
64
65
56
54
58
58
60
60
65
59
66



NIl13


ENERGY
TO
LOADS
MILLION
BTU
0.037
0.014
0.021
0.044
0.036
0.001
0.011
0.051
0.053
0.050
0.045
0.012
0.006
0.002
0.002
0.042
0.030
0.014
0.003
0.002
0.030
0.052
0.002
0.000
0.005
0.005
0.041
0.002
0.048
0.003
0.057
0.721
0.023


ECSS
OPERATING
ENERGY
MILLION
BTU
0.007
0.007
0.006
0. 007
0.007
0.00
0. 007
0.007
0.00
0.007
0.007
0.005
0*002
0.0020
0. 000
0.00
0.00(
0.003
0.001
0. 000
0.006
0.007
0. 002
0.000
0.001
0.003
0.007
0.001
0.007
0.002
0. 007
0.142
0.005
Q102


ECSS
ENERGY
REJECTED
MILLION
BTU
N
0
T
A
P
P
L
1
C
A
B
L
E













------------1
N.A.
N.A.
I-----------


ECSS SOLAR
CONVERSION
EFF I CIENCY


0.247
0.075
0. 153
0.333
0. 192
0.006
0.064
0 302
0.329
0.325
0.268
0.191
0. 196
0 .10
0.091
0.371
0.224
0.239
0. 005
0.053
0.408
0.294
0.070
0.000
0.194
0. 079
0. 273
0.097
0. 3?7
0 110
0.314


0.227
M 11- 1


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







SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY PFPODT
COLLECTOR ARRAY PERFORMANCE


SITE: SADDLE HIL S TRUST LOT #77, MEDWAY,MA
REPORT PERIOD: MAY,1979


02053SOLAR/1039-79/05


001


DAY INCIDENT OPERATIONAL
OF SOLAR INCIDENT
MONTH ENERGY ENERGY
MILLION MILLION
BTUI BTU
1 0.152 0.141
2 0.185 0.175
3 0. 14 0.120
4 0. 131 0 126
5 0.189 0.180
6 0.147 0.138
7 0.176 0.169
8 0.170 0.160
9 0.160 0.152
10 0.155 0.146
11 0.160 0.159
12 0.062 0.045
13 0.033 0.016
14 0.021 0.004
15 0.021 0.003
16 0.113 0.106
17 0.133 0.118
18 0.057 0.042
19 0.0?0 0.005
20 C.030 0.002
21 0.073 0.062
22 0.176 0.166
23 0.03? 0.014
24 0.010 0.000
25 0.027 0.010
26 0.064 0.049
27 0.151 0.140
28 0.025 0.006
29 0.148 0.137
30 0.026 0.012
31 0.180 0.171
SUM 3.180 2.775
AVG 0.103 0.090
NBSID Q001


COLLECTED
SCLAP
ENERGY
MILLION
BTU
0.351
0.056
0.040
0.051
0. 052
0.030
0.058
0.05Q
0 061
0.056
0.016
0. 003
0.002
C. 002
0.048
0 037
0. 017
0.004
0.002
0.034
0.061
0.0004
0. 000
0.006
0. 024
0.050
0.003
0. 056
0.004
0. 065
1.018
0.033
0100


DAYTIME
AMBIENT
TFMP
DEG F


--------
I -
----------l


COLLECTOR
ARRAY
EFFICIENCY


0.334
0.300
0. 296
0,394
0.277
0.267
0.329
0, 347
0.382
0.364
0.298
0.262
0.238
0.117
0.104
0. t26
0.280
0.296
0.117
0.063
0. 469
0.343
0. 121
0. 000
0.230
0.382
0.334
0.125
0.378
0.162
0.363


0.320
N100


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






SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
HOT WATER SUBSYSTEM


SITE: SADDLE HILLS TRUST LOT #77,
REPORT PERIOD: MAY,1979


MEr)WAY, MA


02053


SOLAR/1039-79/05


I -
DAY
OF
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
SUM
AV G
NB S


HOT
WATER
LOAD
MILLION
BTU
0.063
0.043
0. 094
0.0361
0.037
0. 076
*
0.065
0.0801
0.047
0.039'
0.084
0.039
0.038
0.036
0.042
0.074
0.044
0.046'
0. 036
0.042'
0.090
0.040
0.0361
0.067
0.074
0.0451
0. 043
0.088
0.0481
1.7001
0.055
Q302--


SOLAR
FR .OF
LOAD
PER
CENT
47
43
50
39Q
50
49!
*1
54
65
54
541
32
18
91
12
35'
37
1
11
7
30
451
17
61
10
361
27
14
32
24

-1
35
N300


SOLAR OPER AUX
ENERGY ENERGY THERMAL
USED USED
MILLION MILLION MILLION
BTU BTU BTU
0,037 N 0.042
0.014 0 0.031
0.021 T 0.052
0.044 0.0301
0.036 A 0.0281
0.001 P 0.044
0.011 P 0.053
0.051 L 0.029
0.053 I 0.036
0.050 C 0.0251
0.045 A 0.025
0.012 B 0.021
0.006 L 0.068'
0,002 E 0.039
0.002 0.0401
0.042 0.039
0.030 0.030
0.014 0.0531
0.003 0.045
0.002 0.052
0.030 0.043
0.052 0.032
0.002 0.059
0. 00 0.043
0.005 0.045
0.005 0.0691
0.041 0.054
0.002 0.041
0.048 0.0391
0.003 0.066
0.057 0.0401
0.721 N.A. 1.313'
0.023 N.A. 0.042
Q300 Q303 C301


N.A.
N.A.
0305


AUX
ELECT
FUEL
MILLION
BTU
N
0
T
A
D
P
L
I
C
A
R
L


AUX
FOSSIL
FUEL
MILLION
BTU
0.071
0.051
0.086
0.050
0.0461
0.073
0.088
0.048
0.059
0.041
0.0411
0.035
0.114
0.064
0.067
0.0667
0.049
0.088
0.0751
0.087
0.0721
0.053
0.099
0.0721
0.076
0.116
0.090
0.068_
0.0641
0.110
0.067
1 2.189
0.071
Q306


EL ECT
ENERGY
SAVINGS
MILLION
BTU
-0.007
-0. 007
-0.0061
-0.007
-0.007
-0.005
-0.007
-0.007
-0.008
-0. 007
-0.007'
-0.005
-0 002
-0.000
000
-0.007
-0.006
-0.003
-0.001
-0.000
-0.006
-0.007
0 002
0.000
-0.001
-0.003
-0.007
-0 001
-0.007
-0.002
0.007
-------- 1
-0.142
-0.005
Q311


FOSSIL
ENERGY
SA VI NG S
MILLION
BTU
0.050
0.038
0.089
0.026
0. 029
0 .078
*
0.072
0.088
0.049
0.042
0.042
0 011
0. 006
0.012
0.035
0.050
0.015
0.008
0.005
0.026
0.067
0.010
0.004
0.014
0.047
0.019
0. 012
0.052
0.025
1.092
0.035
0313


SUP.
WAT.
TEMP
DEG
F
53
53
53
561
56
54
*
54
56
61
*1
56'
58
57
60
59
58
57
58
58
58
61!
58
59
5R
59
58'
60
6 C
59
-I
57'
N305


I -- --
HOT
WAT.
STEMP
OFG
c=

140
138
142
1381
136
140
*
130
1381
135
*i
137
1441
1441
137
137
1 40
144
143
13q
139
131'
131
141
1431
142
145
141
120
1301
144


-- -- 1
-
1301
N307
----I


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


HOT
WAr ER
USFr
GAL
861
58
119
531
41
95
1061
74
1101
61
64
58
112
53
54
56
571
194
66
62
55
52
132
50
531
94
105
62
56
121
59
23401
I------
75
N308
------ I








SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM
MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SOLAR/1039-70/05


SITE: SADDLE HILLS TRUST LOT #77, MEOWAY,MA 02053
REPORT PERIOD: MAY, 107


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
-


TOTAL
INSOLATION!
BTU/SQ.FT
1943
2372
1721
1677
2427
1891
2251
2177
2056
1988
2166
791
422
266
274
1452
1711
726
388
390
934
2259
414
123
352
816
1935
318
1892
328
2307
40769
1315
001---
-101


DIFFUSE
INSOLAT ON
BTU/SQ.FT
N
0
T

A
P
P
L
I
C
A
B
IE
E


I -


--------I
AMBIENT
TEMPERATURES


DEG F
-----------1
57
52
54
63
55
54
62
67
79
82
69
60
64
62
62
65
61
59
54
56
64
65
56
54
58
58
60
6C
65
59
66


N.A. 61
N113


RELATIVE
HUMIDITY
PERCENT
N
0
T
A
P
P
L
I
C
A
L


DAYTIME
AMBIENT
TEMP
DEG F
68
62
69
71
59
61
71
83
89
91
81
67
64
64
72
72
63
r,9
60
69
74
66
55
61
61
68
61
76
63
76


69
--- -


WI ND
DIPECTI ON
DEGREES
N
C
T
A
P
P
L
1
C
A
B
L
F


I------------
N,Ao
N.A.
N115


WIND
SPEEr
M.PH.
N
0
T
A
P
P
L
I
C
A
B
L
E













1-------------------

N.A.
N114


DENOTES UNAVAILABLE DATA.
DENOTES NULL DATA.
.A. DENOTES NOT APPLICABLF DATA.


N.A.























































































































































































































































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UNIVERSITY OF FLORIDA
I1111111111111111111111 I111111111l i 1 li ll 11111 III
3 1262 09052 5956




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