Monthly performance report

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Material Information

Title:
Monthly performance report Irvine school
Uncontrolled:
Irvine school
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 -- Orange County   ( lcsh )
Solar air conditioning   ( lcsh )
Solar heating   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
National solar data program.
General Note:
Monthly Catalog Number: gp 80007817
General Note:
National solar heating and cooling demonstration program.
General Note:
"SOLAR/2021-79/02" ; "SOLAR/2021-79/03" ; "SOLAR/2021-79/05" ; "SOLAR/2021-79/06."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027035653
oclc - 05908111
System ID:
AA00013869:00002


This item is only available as the following downloads:


Full Text
- I 1- *


SOLAR/2021-79/05


Monthly

Performance

Report


IRVINE SCHOOL
MAY 1979


U.


S.


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


m I


-oL A K<


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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.
I- I- I II III I III II I


.:Y_.







MONTHLY PERFORMANCE REPORT
IRVINE SCHOOL
MAY 1979


I. SYSTEM DESCRIPTION


The El Camino Real Elementary School, referred to hereafter as Irvine
School, is located in Central Orange County, California. The school is
approximately ten miles from the Pacific Ocean, and was built in 1971.
The building contains 41,109 square feet of floor area, and is normally
occupied five days a week by 850 children and 60 adults. Building oc-
cupancy is uniform throughout the year since the school operates on a
trimester plan. The solar energy system was added to the existing
building, and was designed to supply 50 percent of the annual building
heating and cooling demand.


The solar energy installation includes 4,950 square feet of evacuated
tubular glass collectors, a heat rejector, and a heat exchanger from the
collector loop to the load loop. The collector array faces south at an
angle of 25 degrees from the horizontal. Water is used as the medium
for delivering solar energy from the collector array to the heat ex-
changer for transfer to the load subsystems. Existing load loop components
were unaltered except for controls. These load loop components include
a 4-million Btu per hour boiler, two 100-ton absorption chillers, 41 heat-
ing coils, and seven air handlers. Since heating demands are low due to
the moderate climate and most of the load demand occurs during the day,
no solar energy storage is provided. The collected solar energy is trans-
ferred directly from the collector loop to the load loop via the heat
exchanger. If collected energy exceeds the load loop demand, excess
energy is rejected via the heat rejector. The heat rejector is a water-
to-air heat exchanger mounted on the roof and situated in the collector
loop between the collector outlet and the load loop heat exchanger inlet.
If the solar energy does not meet the full energy demand from the loads,
the boiler is activated to make up the shortage before the hot water







reaches the loads. The hot water is routed to the chillers or heating
coils, or both, depending on the building demand. The hot water then
returns to the heat exchanger to complete the cycle.

The system, shown schematically in Figure 1, has five modes of solar
operation.

Mode 1 Collector Protection: This mode occurs when the lower flow
capacity (15 GPM) auxiliary collector pumps are turned on by a clock
timer. This is normally before collection begins and is required to pre-
condition the collectors for main pump flow and ambient temperature con-
ditions. This mode is reentered daily at the completion of mode 2
operation, and is subsequently terminated by the clock timer. Since no
other freeze protection subsystem is provided, this mode is also entered
when the outside ambient temperature is less than 380F. The clock con-
troller is overridden for freeze protection entry when this control temp-
erature has been reached.

Mode 2 Solar Energy Collection: This mode occurs when the main collec-
tor pump (125 GPM) is on. Mode entry requires a differential temperature
of 15F between the collector outlet and the load side inlet to the heat
exchanger. When the differential temperature again drops below 15F
(adjustable), mode 1 is reentered.

Mode 3 Collector-to-Space Heating/Cooling: In this mode, heating and
cooling loads may be active at the same time. This mode is enabled at
all times, and receives energy from the solar energy system when avail-
able. If solar energy is not available, or is insufficient to satisfy
the full demand, the auxiliary boiler is activated to supply the remain-
ing demand. At night, this mode is normally disabled by the clock timer.


Mode 4 Solar Heat Rejection: This mode occurs when excess solar energy
is diverted from the collector loop and rejected to the environment













*1001 COLLECTOR PLANE TOTAL INSULATION
*1002 COLLECTOR PLANE DIFFUSED INSULATION
YTOOl OUTDOOR TEMPERATURE
VT600 INDOOR TEMPERATURE


XCE
)LING TYP
'PLY 7 UNITS






















4CE TYP
EATING 7 UNITS
'PLY




REVISED 4/5/79


Figure 1. IRVINE SCHOOL SOLAR ENERGY SYSTEM SCHEMATIC


.-





through a liquid-to-air heat exchange- on the roof. This mode is entered
if the temperature at the collector loop outlet frc,, the heat exchanger
exceeds a variable set point (approximately 215F)} Upon exceeding this
set point temperature, a three-way valve is switched to initiate collector
loop flow through the heat rejector, and the heat rejector fan is turned
on to increase the air flow across its coils. When the heat exchanger
outlet temperature drops below another variable set point (approximately
200*F), the three-way valve is reversed, the heat rejector fan is turned
off, and this mode is terminated.

Mode 5 Collector Backup Protection: This mode is entered when the col-
lector outlet temperature exceeds a set point (approximately 2200F).
Control design assumes the collector pumps are not operating if this tem-
perature is exceeded. In this mode, normally open solenoid valves allow
city supply water to enter the collectors and drain out at the collector
outlet. This mode protects against collector thermal shock damage if a
power outage occurs.


II. PERFORMANCE EVALUATION

The system performance evaluations discussed in this section are based
primarily on the analysis of the data presented in the attached computer-
generated monthly report. This attached report consists of daily site
thermal and energy values for each subsystem, plus environmental data.
The performance factors discussed in this report are based upon the def-
initions contained in NBSIR 76-1137, Thermal Data Requirements and Per-
formance Evaluation Procedures for the National Solar Heating and Cooling
Demonstration Program.

A. Introduction


The solar energy system at Irvine School operated continuously during
May, and satisfied 17 percent of the combined space heating and cool-
ing energy requirements. By design, the system performed heating and
cooling simultaneously for different areas of the building. The space
cooling requirements were 79 percent of the total system load.







B. Weather


Due to the year-round mild outside ambient temperatures in the Irvine School
area, only a relatively small heating load, or cooling load, is expected.
In comparison to an expected outside ambient temperature of 610F, the actual
outside ambient temperature averaged 660F during the month. The measured
insolation in the plane of the collectors averaged 1,656 Btu/ft2-day, below
the expected long-term average of 2,009 Btu/ft -day which was derived from
measurements taken at the Los Angeles International Airport, California.

C. System Thermal Performance

Collector Of the 254.16 million Btu of solar energy incident on the col-
lector array during May, 248.49 million Btu were incident on the collector
array when there was fluid circulating in the collector loop. The system
collected 101.72 million Btu of solar energy, or 40 percent of the total in-
cident insolation on the collector array. In this solar energy system, col-
lected energy is either rejected through the heat rejector or delivered to
the load. No storage of energy is provided. During May, 4.36 million Btu of
energy were rejected by the heat rejector in the collector-to-load loop, re-
sulting in a net collection of 97.36 million Btu of energy.

Space Heating The outside ambient temperatures during May were low enough
to require some heating of the building during 27 days of the month. The
resulting heating load was 29.21 million Btu. The heating subsystem utilized
2.77 million Btu of solar energy, and 28.51 million Btu of auxiliary energy.
The resulting solar fraction for space heating is nine percent. The operating
energy of the space heating subsystem was 1.85 million Btu.

Space Cooling The space cooling subsystem was used on all but one day in
the month of May. The space cooling load was 111.74 million Btu. There was
80.88 million Btu of solar energy used, and 434.49 million Btu of auxiliary
energy used for space cooling. The sum of the solar and auxiliary energies







used was 515.37 million Btu, which supported the space cooling load through
the absorption chillers. The resulting solar fraction for space cooling is
19 percent, and the operating energy of the space cooling subsystem during
May was 89.45 million Btu.


D. Observations


During May, 21.25 million Btu of auxiliary energy were delivered from the
load loop, through the heat exchanger, to the collector loop. This occurred
early in the mornings, usually prior to sunrise when the collector pumps were
initially turned on, and there was either a heating or cooling load, thus,
providing flow through the load-side of the heat exchanger. A calculated
value of 3.18 million Btu of energy was collected when no insolation was avail-
able. This phenomenon is believed to be caused by the ability of the collector
tubes to maintain relatively high fluid temperatures overnight, thereby main-
taining a positive temperature change across the collector array; the collector
pumps are initially turned on around 6:00 a.m. each day.


The calculated value of energy extracted from the load-side of the collector-
to-load heat exchanger was 92.40 million Btu. This value is only five percent
less than the net solar energy collected. An energy imbalance is occasionally
seen at this point, with slightly more energy measured as being delivered to
the load than was collected. This energy imbalance is believed to be due to
uncertainties in temperature measurement, and the fact that some of the aux-
iliary energy delivered to the collectors is returned as useful energy. The
average flow rate through the heat exchanger in the collector-to-boiler loop is
relatively large at approximately 4,998 Ibs/min. Therefore, an energy imbalance
can be observed due to a small uncertainty in the temperature measurement T401
and T451.


Irvine School is a large building with few windows. It contains 41,109 square
feet of floor area, and is normally occupied by 910 people. Considering the
climate of Orange County, buildings of this type generally require heating and







cooling during most months. The heating and cooling system at Irvine
School is designed to operate simultaneously when necessary. There are
seven separate zones in the building which are heated or cooled. The
current instrumentation philosophy does not permit thermal analysis of
each zone separately. Therefore, the data in the space heating and space
cooling subsections of the attached report refers to the combined cool-
ing or combined heating requirements for the entire school.

Similarly, the inside ambient air temperature defined in the space heating
and space cooling subsections of the attached report does not reflect the
average temperature for all zones, but represents the average inside ambient
air temperature in the area of the sensor.

The month of May was significantly warmer than normal, while the total amount
of insolation was well below normal. The combination of these two factors
produced a large space cooling load which could not be readily met by the
solar system, and hence a low solar fraction for this month.

The average daily values of the Coefficient of Performance (COP) for the ab-
sorption chillers range from a low of 0.03 to 0.35. These values may be
misleading, indicating erroneously low chiller efficiency, without a brief
explanation of chiller operation. The absorption chillers at Irvine School
are two very large capacity (100 ton) units. When the chillers are to sup-
port relatively small space cooling loads, such as occurred this month, two
problems are experienced. First, the generator section of the chiller must
be brought up to operating temperature. This could take a couple of hours,
during which solar or auxiliary energy is used with little cooling produced.
Second, internal design of the chillers causes by-pass valves to be open if
condensing water returning from the cooling tower is below approximately
850F. The result is that little cooling is being accomplished within the
chiller; it is primarily being done at the cooling tower. Both of these con-
ditions combine in the mornings and during light cooling loads, to result in
a low calculated value of the chiller COP (.0.1-0.2). When a large load is
experienced, the COP rises up to near 0.6, but drops back as the load is








reduced later in the day. The result is then a relatively low average COP
value for tne day as shown in the tables. It should be noted that the largest
COP of the month occurred on the day with the largest cooling load. This daily
value could possibly be increased by internal modification of the chillers, on
external bypass connecting the cooling towers to the conditioned space, or by
delaying chiller operation until a larger load was to be supported.

An estimated value of 15 KW was used for power consumption of the pumps in the
cooling tower loop, since these pumps are uninstrumented.

E. Energy Savings

The Irvine School solar energy system resulted in a fossil fuel savings of
139.41 million Btu at an operating expense of 11.47 million Btu of electrical
energy. Converting the electrical energy to a fossil equivalent yields 38.23
million Btu of operating energy. Therefore, the net fossil savings was 101.18
million Btu. The fossil energy savings calculations are based on a comparison
of the projected energy requirements of a conventional, fossil energy boiler,
with an efficiency of 60 percent, and the energy requirements of the solar
energy system.

III. ACTION STATUS

All sensors associated with the absorption chiller operation are being re-
calibrated to correct a small energy imbalance observed in its operation.










SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY,1979


SOLAR/2021-79/05


SITE/SYSTEM DESCRIPTION-
THE SOLAR ENERGY SYSTEM WILL AUGMENT THE EXISTING HEATING AND COOLING
SYSTEM BY PROVIDING HEATED WATER FOR ABSORPTION CHILLERS AND BUILDING
HEAT. SOLAR ENERGY IS COLLECTED BY BANKS OF EVACUATED GLASS TUBE COL-
tECTORS AND TRANSFERRED TO THE LOADS VIA A HEAT EXCHANGER.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY

AVERAGE AM3IENT 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
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A


HEATING
29.21 "
9
2.768
1.850
28.506
N.A.
38.688
N.6A.
4.613


COOLING
111 .736
19
80.878
89.451
434.489
N.A.
554.119
0.000
134.797


254.163 MILLION BTU
51346 BTU/SQ.FT.
101.720 MILLION BTU
20550 BTU/SQ.FT.
66 DEGREES F
76 DEGREES F
C.33
11.467 MILLION BTU
102.769 MILLION PTU
805.356 MILLION BTU


SYSTEM TOTAL
140.949 MILLION BTU
17 PERCENT
83.646 MILLION BTU
102.769 MILLION BTU
475.704 MILLION PTU
N.A. MIL-ICN BTU
600.589 MILLION BTU
-11.467 MILLION BTU
139.409 MILLION BTU


SYSTEM PERFORMANCE FACTOR:


0.149


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

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










SOLAR HEATING AND COOLING DEMONSTRATE ON PROGRAM


MONTHLY REPORT
SITE SUMMARY


SOLAR/2021-79/Of


SITE: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY,1979


SITE/SYSTEM DESCRIPTION-
THE SOLAR ENERGY SYSTEM WILL AUGMENT THE EXISTING HEATING AND COOLING
,SYSTEM 3Y.-PROVIDING HEATED WATER FOR ABSORPTION CHILLERS AND BUILDING
HEAT. SOLAR ENERGY IS COLLECTED BY BANKS OF EVACUATED GLASS TUBE COL-
LECTORS AND TRANSFERRED TO THE LOADS VIA A HEAT EXCHANGER.

GENERAL SITE DATA:
INCIDENT SOLAR ENERGY 268.1


- --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.
N.A.
N. A


HEATING
30.82C
9
2.920
I 952
30.074
NA.,
40.816
N.A.
4.866


COOLING
117.881
19
85.326
94.371
458.385
N.A.
584.595
0.000
142.210


42 GIGA JOULES


583087 KJ/SQ.M.
107.315 GIGA J3ULES
233360 KJ/SQ.M.
19 DEGREES C
25 DEGREES C
0.33
12.098 GIGA J3ULES
108.421 GIGA JOULES
849.650 GIGA JOULES

SYSTEM TOTAL
148.702 GIGA JOULES
17 PERCENT
88.246 GIGA JOULES
108.421 GIGA JOULES
501.867 GIGA JOULES
N.A. GIGA JOULES
633.621 GIGA JOULES
-12.098 GIGA JOULES
147.077 GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


0 149


* DENOTES UNAVAILABLE DATA
& DENOTES NULL DATA
No.A. DENOTES NOT APPLICABLE DATA

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









SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)


SITE: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY, 1979


SOLAR/2021-79/05


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


INCIDENT
SOLAR
ENERGY
MILLION
---BTUt-

7.577
8.856
8.319
9.210
7.244
5 532
6.941
10.494
11.870
11.818
1 584
11.871
12.051
11.843
11 184
6. 087
8.704
9 392
5.507
2.789
5.789
11.091
10.719
6.494
9.412
8.745
S1766
3.234
4.930
7.902
5.210

254,163

S8199

00ooi


AMBIENT
TEMP


DEG- F

63
63
64
65
64
62
61
61
62
66
72
78
82
71
66
64
64
65
63
64
67
69
70
67
68
68
64
66
65
66
67


66

N113


ENERGY
TO
LOADS
MILLION
BTU

3 086
3 845
3 543
3.744
0,000
2,083
2.408
4.361
4.930
4.988
5.070
0. 000
5.711
5.795
4.985
2.713
2 728
2.907
1 709
1 042
2.451
5 108
4.817
3.030
3.859
0.000
0.000
0.076
1.947
3. 3395
2.066

92.398

2.981


AUX
THERMAL
TO ECSS
MILLION
BTU

0.661
0.629
0.685
0.655
0.000
0.988
0.460
0.553
0.258
0.318
0.415
0.000
0 774
0.798
1.033
1.195
0.821
0.518
1 085
1 395
1.101
0.329
1.114
1.441
1.075
0.000
0.000
0.000
0.664
0.838
1.449
-----~-----
21 253
0.686
--------I


ECSS
OPERATING
ENERGY
MILLION
BTU
0.379
0.380
0.375
0.332
0.313
0.378
0.335
0 335
0.341
00340
0.342
0.298
0.412
0.402
0.393
0.385
0.362
0.331
0.312
0.395
0 394
00347
0.386
0.422
0.403
0.423
0.427
0.338
0.383
0.380
0.422
-----------1
11.467

0.370

Q102


ECSS
ENERGY
REJECTED
MILLION
BTU

0.000
0.000
0.000
0.000
0.724
0 000
0.000
0.000
0.000
0.000
0.000
1 826
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
1.814
0.000
0.000
0.000
0.000
0.000

4.364

0.141


ECSS SOLAR
CONVERSION
EFFICIENCY


0.366
0.396
0 382
0 382
0.000
0.328
0.319
0*396
0 396
0.393
0.402
0.402
0.000
0.443
0.439
0.412
0.357
0.301
0.296
0.257
0.269
0.365
0.420
0.422
0.384
0.370
0.000
0.000
0.000
0.274
0.390
0 353
-----------|-
-

0.329

N111


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










SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE


SI'E: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY,1979


SOLAR/2021-79/05


DAY
O=
MONTH



1
2
3
4
5 .
6
7

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
2f6
27
28
29
30
31

SUM

AVG

NBSID


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


INCIDENT
SOLAR
ENERGY
MILLION
BTU
----------I
7.577
8.856
8.319
9.210
7.244
5.532
6.941
10.494
11.870
11.818
11.584
110871
12.051
11,843
11.184
6.087
8.704
9.392
5.507
2.789
5.789
11.091
10.719
6.494
9.412
8.745
1 766
3.234
4.930
7.902
5 210
----~-----I
254.163

8.199

0001


OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU

7.513
8.785
8.290
9.195
6.937
5,496
6.762
10 358
11 644
11.619
11.374
9.642
12.051
11 843
S1*184
6.087
8.704
9.079
4.839
2,789
5.789
10.894
10.719
6.494
9.308
8.745
1.766
2.735
4.796
7.836
5.210

248.485

8.016
I-----------


COLLECT T ED
SOLAR
ENERGY
MILLION
BTU

2.909
3.784
3.455
3.837
1.784
2.003
2.4 f?.
4.267
4.912
4 938
4.892
3,588
5.845
5.275
c. 063
2 305
4.084
3.920
1.849
0.932
2.379
4.748
4.707
2.685
4,057
2 597
0.938
0.759
1.5.37
3.230
2.003

101.720

3.281

0100


DAYTIME
AMB I ENT
TEMP
DEG F


72
72
73
75
71
68
68
69
74
77
89
99
102
87
77
70
73
76
72
69
74
82
82
73
77
77
67
71
72
74
73


0.400


N100


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


COLLECTOR
ARRAY
EFFICIENCY



0.384
0.427
0.415
0.417
0.246
0.362
0 9 3f 1
0.3F1
0.407
0.414
0.418
0.422
0.302
0.485
0.445
0.453
0.379
0.469
0.417
0.336
0.334
0.411
0.428
0. 49
0.413
0.431
0.297
0.531
0.235
0.312
0.409
0.384








SOLAR HEATING AND COOLING DEMONSIRATTON PROGRAM


MONTHLY REPORT
SPACE HEATING SUBSYSTEM


SITE: IPVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY 1979


SOLAR/2021-79/05


w


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


I--------
SPACE
HEATING
LOAD
MILLION
BTU

1.148
1.080
1.231
1.001
0.000
1.581
1.896
1.396
1.705|
1.500
0 863
0.000
0699
0.4211
0.844
1 1651
1 .353
1.518
0.865!
1.571
0.953
0.906
0.684
0,698
0 634
0.000
0.000|
0.350
1.003
1.191
0.957

29.214

0.9421

0402


SOLAP SOLAR
FR*OF ENERGY
LOAD USED
oCT MILLION
BTU

7 0.078
10 0.112
9 0.109
9 0.091
0 0.000
5 0.080
7 0.138
10 0.139
13 0.226
13 0.192
10 0.082
0 0.000
15 0.104
22 0.094
18 0.150
9 0.104
10 0.132
11 0.161
3 0.030
4 0.060
7 0.065
12 0.113
15 0.100
8 0.058
16 0.143
0 0.000
0 0.000
0 0.000
4 0.041
8 0.090
7 0.074

S 2.768

9 0.089

N400 0400


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


OPER
ENERGY

MILLION
BTU

0.062
0.056
0.063
0.054
0.000
0. 082
0.094
0.071
0.085
0.077
0.042
0.000
0.038
0 024
0.042
0.057
0. 067
0.074
0.222
0 082
0.056
0 056
0 049
0,079
0.129
0.000
0.000
0.022
0.053
0.065
0.053

1.850

0.060

0403


AUX
THERMAL
USED
MILLION
BTU

1.185
1.029
1,222
00966
0.000
1.526
1.906
1.389
1 473
1.344
0.854
0.000
0 574
0.338
0,701
1 052
1.235
1 438
1.271
1 509
0.905
0.953
0.641
0. 763
0.690
0.000
3.000
0.435
1.009
1 179
0.922

28.506

0.920

0401


AUX
ELECT
FUEL
MILLION
BTU

N
0
T

A
P
P
L
I
Cl
A
El
L
E

















N.A.

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


AUX
FOSSIL
FUEL
MILLION
BTU

10657
1.251
1 653
1*340
0.000
1 789
2.197
1.260
1.432
1.316
1.328
0.000
0.840
0 589
0.964
1.417
1.700
1.905
2.252
2.154
1.448
1.318
1.052
1 885
1,274
00000
0.000
00600
1.443
1.641
1 283

38.688

1.248

0410


ELECT
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P

L
I
C
A
B
L
E

















N.A.

0415A.


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


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

0.130
0.187
0.1811
0.151
0.000
0.134
0.231
0.2321
0.376
0,321
0.1371
0.000
0.1731
0.156
0.250'
0.173
0.220
0.269
0.0501
0.100
0.109
0.188
0.167
0.096
0.238
0.0001
03000
0.000
0 .068
0#149
0.124

4.613


BLDG
TEMP

DEG.
F

76
76
761
76
76'
741
74
751
75
75
771
78
79
78
78
77
76
77
76'
75
76
77
78
78
78
78
751
?74
75
76
77

e
76

N406


AMB
TEMP

DEG.
F

63
63
64
65
64
62
61
61
62
66
721
78
823
71
66
64
64
65
631
64
67
69
70
67
68
68
641
66
65
66
67
--

66

N 131


0.149


0417












SOLAR- HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE COOLING SUBSYSTEM


SOLAR/2021-79/05


SITE: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY,1979


DAY
OF
MON.


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


SPACE
COOLING
._ LOAD.
MILLION
BTU

3.900
3.918
4.304
4.0621
--.. 0.005s
1.370
3.0941
3.254
3.922
4.595
5.774
0.271
4.370
6.772
C .42`2
4.366
4.335
4.797
0.540
1 843
4.745
6.034'
6.550I
4.860
4.7351
0.000
0.054
0.413
3.899
4.953
4.577


SOLAR
FR.OF
LOAD
PCT


15
17
17
21
0
5
12
22
25
26
27
0
30
27
24
11
14
14
9
4
11
24
23
18
23
0
0
0
6
17
10


SOLAR
ENERGY
USED
MILLION
BTU

2,694
3.392
3.070
3.424
0.000
1.736
2.076
4.013
4.434
4.562
4.578
0.000
5.236
5. 104
S44-53
2.071
2,486
2.619
1.385
0.689
2.049
4.547
4.423
2.435
3.335
0.000
0.000
0.000
1.311
2.990
1.767


OPER
ENERGY

MILLION
BTU

3.210
3.252
3.251
3.196
1.234
3.175
3.044
3.015
3.138
3.247
3.313
1.245
3,673
3 658
3.383
3.211
3,217
3.272
3.046
3.216
3%417
3.604
3.800
2.901
2.718
1.235
1.234
1.430
2.617
2.773
2.729


AUX
ELECT
FUEL
MILLION
BTU

N
0
T|

A
P
P
L
I
C
A

L-
F







_~___cI


AUX
THERMAL
USED
MILLION
BTU

17.491
17.403
17.611
15.209
0 0.00
17.477
17.637
16.419
15.188
14.825
14.510
0.000
13.932
14.549
15.446
17.572
16.739
17 137
17.081
19.220
18.830
16.399
16.423
14.728
13.276
0.000
0.000
3.087
20.796
17.272
18.232


ELECT
EN ER GY
SAVINGS
MILLION
eTU

0.000
0.000
0.0000
0.000
0.000
0.000
0. 00
0.000
0.0000
0.000
0.000
0.000
0.000
0.0001
00000
00000
0.000
0.000
0.0001
0.000
0.000
0.000
0. 000
0.000
0.000
0,000
0.0001
0.000
0.0000
0.000
0.000


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

4.490
5.653
5.1171
5.7071
0.000
2,893
3.459
6.688
7.391
7.603
7,629
0.000
8.727
8.507
7.421
3.452
4.1431
4.365
2.3091
1.148
3.415
7.5781
7.372
4.058
5 559
0.000
0.000
0.000
2.185
4.984
2.945


AUX
FOSSIL
FUEL
MILLION
BTU

23.356
17.544
23.2381
19.037
0.000
20.3901
19.351
16.688
16 463
16.465
17.451i
0.000
18 048
19 266'
20.265
23.3301
22.532
22.513
23.666
26.610
25.204
21.350
23.043
20 457
18.1801
0.000
0.000
4.131
27.499
23.4041
24,658
----------- I


BLDG
DRY
BULB
TEMP
F

76
76
76
76
76'
74
74
751
751
75
771
781
79
78
78
77
761
77
76
751
76
77
78
78
781
78
75
741
751
76
77


AMB
TEMP

DEG
F

63
63
64
651
64
62
611
61
62
66
72
78
82
71
*66
64
A4
65
63
64
67
69
70
67
68
68
64
66
65
66
67
----I





MONTHLY REPORT
............... .... ....... NVIRONMENTAC SUMMARY


SOLAR/2021-79/05


SITT: IRVINE SCHOOL IRVINE CALIFORNIA
_ _REPORT PERIOD: MAY, 1979


SUM

SAVG

NBS I D


DAY
.OF
MONTH


S- -1-.
2
I.- 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


TOTAL
INSOLATION!

BTU/SQ.FT

.. 1531 .
1789
1681
1861
1463
1118
1402
2120
2398
2388
2340
2398
2435
2392
2259
1230
1758
1897
1113
563
1169
2241
2166
1312
1901
1767
357
653
996
1596
1053

51346

1656

QO01


DIFFUSE
INSOLATION

BTU/SQ.FT

.796
902
688
774
907
652
862
486
347
343
351
376
362
384
522
781
632
933
753
480
787
618
613
535
628
792
311
569
870
769
838

19663

634


AMBIENT
TEMPERATURE

DEG F

S63
63
64
65
64
62
61
61
62
66
72
78
82
71
66
64
64
65
63
64
67
69
70
67
68
68
64
66
65
66
67


66
N113
-~----------


DAYTIME
AMBIENT
TEMP
DEG F

.. 72
72
73
75
71
68
68
69
74
77
89
99
102
87
77
70
72
76
72
69
74
82
82
73
77
77
67
71
72
74
73


~---~-------
RELATIVE
HUMIDITY

PERCENT

N
0
T

A
P
P
5
I
C
A
B
L
c



















-----------_
- -


WIND
SPEEO

M .P.H.

N
0
T

A
P
P
L
I
C
A
B
L
E


WIND
DIRECTION

DEGREES

N
0
T

A
P
P
L
I
C
A
B
L
E

















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

N115
----- -----


*-DENOTES UNAVAILABLE DATA.
_ DENOTES NULL DATA.
--N.A. DENOTES NOT APPLICABLE DATA.


N. A.

N114


SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM












SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM
MONTHLY REPORT
THERMODYNAMIC CONVERSION EQUIPMENT


SITE: IRVINE SCHOOL IRVINE CALIFORNIA
REPORT PERIOD: MAY 1979


SOLAR/2021-79/05


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


EQUIPMENT
LOAD

MILLION
BTU

3.900
3.918
4.304
4.062
0.005
1.370
3.094
3.254
3.922
4.595
5.774
0.271
4.370
6.772
5.425
4.366
4.335
4.797
0.540
1.843
4.745
6.034
6.550
4.860
4.735
0.000
0.054
0.413
3.899
4.953
4.577

111.736

3.604


THERMAL
ENERGY
INPUT
MILLION
BTU

19.583
20.515
20.222
18.440
0.000
19.529
19.483
20.012
19.676
20.088
18.776
0.000
19,977
19 477
19.960
19.872
19.376
19 543
17.521
20 177
21 124
20.505
21 530
17.232
16.804
0.000
0.000
2.406
21.752
20.042
19.311

512.929

16.546


OPERATING
ENERGY

MILLION
BTU

2. 270
2.291
2.309
2.312
1.234
2.221
2,134
2.090
2.203
2.324
2.413
1 245
2.673
2.677
2.431
2.253
2 299
2.371
1.999
2.187
2,422
2. 596
2.740
1.981
1 767
1.235
1.234
1.281
1.609
1.732
1.667

64.200

2,071


ENERGY
REJECTED

MILLION
BTU

21.480
23.317
24.335
23 242
2,585
19.529
22.453
21 799
22.705
24 379
S 24.911
13.441
24.626
26.214
25 046
23.617
23.018
23.948
17 153
20 649
25.627
25.692
28.201
21.484
21 858
3.085
0.710
3.775
27.665
27 295
24 820

638.654

20.602


COEFFICIENT
OF
PERFORMANCE
(SEE NOTE)
~~---~-------
0.199
0.191
0*213
0.220
0.000
0.070
0;159
0.163
0.199
0.229
0.308
0.000
0*219
0.348
0 272
0.220
0 224
0.245
0.031
0.091
0.225
0.294
0.304
0 282
0.282
0 000
0 000
0.172
0.179
0.247
0.237

0.218

0.007


* DENOTES UNAVAILABLE DATA.
* DENOTES NULL DATA.
NeA. DENOTES NOT APPLICABLE DATA.
MOTE:


















L






UNIVERSITY OF FLORIDA
IIIII 1 1 111 1111 I ll I IllI III II l II III iiI1
3 1262 09052 5667




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