Monthly performance report

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Title:
Monthly performance report Dallas recreation center
Added title page title:
Dallas recreation center
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 -- Texas -- Dallas   ( lcsh )
Solar heating   ( 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 80007828
General Note:
National solar heating and cooling demonstration program.
General Note:
"SOLAR/2038-79/05" ; "SOLAR/2038-79/06."

Record Information

Source Institution:
University of Florida
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All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027035770
oclc - 05903831
System ID:
AA00013874:00001


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SOLAR/2038-79/06
Monthly
Performance
Report
DALLAS RECREATION CENTER
JUNE 1979


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


/


U.


S.


- 7/66


2,639


































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
DALLAS RECREATION CENTER
JUNE 1979

I. SYSTEM DESCRIPTION


This solar energy system is installed in the North Hampton Park Recreation
ana Health Center in Dallas, Texas. The building contains an area of 16,000
square feet, which provides room for an 8,000-square foot gymnasium, a locker
room and a health care clinic. The solar energy system is designed to provide
30 percent of the annual space heating, 48 percent of the annual space cooling
and 90 percent of domestic hot water requirements.


The solar energy system contains 238 single-glazed flat-plate collectors,
manufactured by Honeywell, Inc., providing a gross area of 3,650 square
feet. The collectors are mounted in 29 arrays on the roof of the building
and face south. The collectors are tilted at an angle of 25 degrees from
the horizontal. The heat transfer medium is an aqueous solution of 35 per-
cent ethylene glycol. The capacity of the collector loop is 475 gallons.


Space heating is accomplished by the transfer of thermal energy, using heat
exchangers, to the air handling system. Space heating is supplemented by
a gas-fired boiler. The thermal energy is stored in a 6,000-gallon hot
water storage tank which is located above ground in the mechanical room
and is insulated with four inches of urethane.


Space cooling is supplied by using solar energy to operate an ARKLA absorp-
tion chiller. Chilled water is stored in a 2,000-gallon tank located above
ground in the mechanical room and insulated with four inches of urethane.
Auxiliary space cooling is provided by two vapor compression units.


Supply water (city) is preheated by heat exchanger HX3 on the hot side of
the absorption chiller condenser loop. Preheated water is further heated
by heat exchanger HX2, between the hot water storage and the domestic hot
water heater (DHW heater). A conventional 100-ballon natural gas water








he :-.-r crcviJes additional thermal energy to satisfy the load require-



T.. s,..,.,: .-.;'i -., ._jtically in Figure 1, has five modes of solar operation.


M 1 Collector-to-Storage: This rmde is entered when either of two
llector absorber plate thermal switches close and activate pump P1 at
1 "F for cooling a.nd 120F for heating, respectively. The set points
are autcr.-tically selected by manual demand switches on the control panel.
;-.itiir.lly, ,.wher, the solution temperature leaving the collector system
exc ...!'. t'r hot v.ater storage t-.rpFmrature by 20 degrees, pump P2 is ener-
giz .'. This in:_ continues until the tenmprature difference is less than



':_. race Heatina: This liode is entered when the HEAT AUTO switch
on the ',sosole switch panel is in the ON position. Pumps P4 and P5 are
ere,,izw when valves V3, V6 and V7 on their respective hot water coils
begin to opnr to the coil. At the sarn time, the control cycle for
valves V4 and V5 0ill be enabled. The signal from an electronic sensor
jrnstr rm of valve V4, reset by an outdoor electronic sensor, causes
valve V- to _c positioned to maintain heating water at a selected tempera-
ture. Trie selected temperature is reset inversely to changes in outdoor
t.r k.ratur .


If solar heatedd water temperature becomes too low to supply the heating
.-' valve V5 reaches the full open position to storage, a time delay
circuit is initiated, valve V5 closes to the storage tank, and valve V4
c-.-ns so t.-at ':'t water from the gas-fired boiler may be used to satisfy
t 'atir- l-..-J.s. The control cycle for valves V4 and V5 has a time delay
which is adjustable up to a maximum of five hours. The time delay is to
'-',.-it valve oscillations. If, during this cycle, heating requirements
are satisfi.., and valve V4 reac~h-s the fully closed position to the boiler
;.*sition, another ti-', delay cycle is initiated which will cancel the
previous ti--' *J lay cycle and restore space heating to valve V5 and the
solar ener:,, source.


























IT504


SUPPLY
(CL.INICI


Figure 1. DALLAS RECREATION CENTER SOLAR ENERGY SYSTEM SCHEMA TIC








Mode 3 -Space Cooling: When the COOL AUTO switch on the console switch
panel is in the ON position, pump P7 starts if any chilled water valve
(V8, V9, or V10) is open to the cooling coil. Pump P6 is interlocked to
start when pump P7 is started and the absorption chiller control circuit
is erabledl. Pump P8 and the cooling towel fan are controlled by the absorp-
tion chiller controls. Valve VI will attempt to maintain generator water
temperature at 1700F. The chilled water inventory will be maintained by
energizing the chiller when chilled water return temperature exceeds 50F
and by de-energizing the chiller at 44F. If, during the cooling portion
of the cycle, cooling demands cannot be met by the chilled water system
and any chilled water valve reaches full open to the coil position, a time
delay cycle is initiated which closes chilled water valves V8, V9, and V10
to the coils, and enables the respective air conditioning unit to allow the
chilled water storage to recover. During this cycle, pump P7 will be lock-
ed on to provide required circulation through the chiller. The time delay
cycle is adjustable for up to five hours. After the time delay period, the
air conditioning unit is de-energized and the solar mode re-entered.


Mode 4 Excess Heat Rejection: The hot water storage is provided with two
alarm thermostats. One initiates an alarm at the central control console
when the storage temperature reaches a selected low level. The other thermo-
stat initiates an alarm if the hot water storage temperature reaches a
selected high level. At the same time, valve VI will be positioned to di-
vert collector solution through heat rejector HX4, where excess energy is
dissipated to the outside air.


Mooe 5 Domestic Hot Water: Domestic hot water (DHW) is preheated by heat
exchanger HX3 when the cooling tower is active. Energy from hot water stor-
age is exchanged at heat exchanger HX2 when pump P3 is on. Pump P9 is on
continuously.


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-
gecerated monthly report. This attached report consists of daily site
thermal and Lrinegy values for each subsystem, plus environmental data.







The performance factors discussed in this report are based upon the
definitions contained in NBSIR 76-1137, Thermal Data Requirements and
Performance Evaluation Procedures for the National Solar Heating and
Cooling Demonstration Program.

A. Introduction


The solar energy system was turned on in June 1978, and has been operating
in conjunction with the auxiliary heating system since that time. Site data
acquisition was started on September 4, 1978.


The solar energy system operated continti'.sly during June. The space cool-
ing load was 73.34 million Btu, of which the solar energy system provided
11.60 million Btu and the auxiliary system provided 61.74 million Btu.

A malfunction in the automatic controls for the DHW subsystem resulted in
fossil energy being transferred to the hot water storage, which is the re-
verse of the design plan. Natural gas was turned off to the boiler on
April 27, 1979. The natural gas was turned off to eliminate the inadver-
tent transfer of boiler heated water to the hot water storage due to leakage
past three-way valves V4 and V5.

B. Weather


The climatological measured versus long-term values are shown below:


Long-Term
Average_ Measured

Ambient Temperature (OF) 80.6 81
Heating Degree-Days (OF-day) 0 0
Cooling Degree-Days (oF-day) 468 494
Insolation (Btu/ft2-day) 1,989 1,864








C. System Thirmal Performance


Coll:tor Of the 204.2 million Btu of solar energy incident on the col-
lator array d:,rinq .',ne, only 167.3 million Btu were incident on the
arr ,y er., u P1 (Figjre 1) was operating. The system collected a net
.,c-!ry of 57.5 inillicri Etu, or 28.2 percent of the total insolation inci-
:..nt .n tht collectorr array. The operation of pumps P1 and P2 to collect
*r-':rry, r~j-q ired 2.5 million Btu.


E /, Ic. fr-or the coll-ctors was 1.6 percent of the total energy gained
by th- collectors. This loss was caused by collector flow occurring when
"4e inlet temrr-rature was greater than the outlet temperature. This condi-
tion usually oi urred during the last 30 minutes of each day prior to pump
Pl turning off. Actual energy lost was 0.96 million Btu. Intentional energy
dissi;.tion from the heat rejector H/4 Ietted between the collectors and
- at exct..nger HX1 was 14.94 million Btu. This is the first recorded opera-
tin: of tVe heat rejector since the solar energy system became operational.


'--% A total of 48.5 million Btu was extracted from storage during
"' 1m .:rth. The space heating subsystem received no energy from storage.
The .- subsys'ter received no energy from storage. The space cooling
subsysts- m received 8P.5 million Btu from storage. The energy in storage
1rcr.Se.; by 1.9 million Btu during the month.


HW subsystem delivered 0.02 million Btu to storage, which is not a
nor- -l -.:je of oFpeaticr. A review of the net energy flow in and out of
stcra., is sh-,.'n below:


Solar tc..rgy delivered to storage 51.3 Million Btu
Solar erer-y from storage 48.5 MIllion Btu
Exc -s ene ., 2.8 Million Btu


2.8 Million Btu
Sto er rj, chang.- 1.9 Million Btu
S y s f .r storage 0.9 Million Btu


Sitor' I ffici .cy ...s '.2 pe ent.







Domestic Hot Water Hot water consumption for June was 2,050 gallons.
Average consumption was 68 gallons each day. During June, the average
temperature of hot water delivered was 1330F. The hot water consumed
was replaced with cold water at an average temperature of 830F.


During June, no energy was transferred from hot water storage to the DHW
heater. Inadvertently 0.02 million Btu was transferred from the DHW heater
to the hot water storage. This anomaly was due to a malfunction of the
automatic control system.


Space Heating Load There was no space heating load. On June 28 and 29,
1979, the space heating circulating pumps P4 and P5 operated for approxi-
mately 14 hours for unknown reasons. No energy transfer occurred across
heating coils HX5, HX8 or HX10, nor was there any flow from the heating
coils to the storage tank. Approximately 0.42 million Btu of operating
energy was used to circulate water. The automatic control system con-
trolling pumps P4 and P5 appears to have malfunctioned.


Space Cooling Load The total measured cooling demand was 73.3 million
Btu. Of this total, the solar energy system provided 11.6 million Btu,
and the auxiliary system provided 61.7 million Btu. The solar cooling
system extracted 48.5 million Btu from the hot water storage and required
8.49 million Btu of operating energy.


The auxiliary system, which consists of two air conditioners, used 24.7
million Btu to produce 61.7 million Btu of cooling. The auxiliary system
ran each day in June. Total cooling operating energy for June was 44.43
million Btu, of which 11.25 million Btu was used to operate the air-'-,ncler
fans. The absorption chiller operated 28 days in June. The 48.5 million
Btu consumed by the generator of the chiller pr':uced 11.6 million Ltu of
cooling. This represents a monthly average COP of 0.33. This low COC is
due to the chiller operating at times when the return chilled watk- tem-
perature was within 30F of the outlet temperature. This is discussed in
greater detail in Section II.D.







D 'b.Prvations


Aut,-,'tic Control Problems The transfer of 0.02 million Btu from the DHW
Sa,-'' to tho h,'t w.atr storage tank is not a normal mode of operation.
Sis is '., :, t: a.itor'atic controls not being properly set.


L, dirn Three-W. Val^ The adverse effect of water leaking past the
thr-.--w,.y valves V4 and V5 was eliminated by turning off the natural gas
to the boiler. This prevented boiler heated water from flowing to the
st raLe t.'nk and mad':2 possible a performance evaluation of the storage
subs -.t-.r.


. cie Cooling Alutomatic Controls The suggested changes which would improve
perforr'arnce are:


1) The absorption chiller control circuit should de-energize the
absorption chiller when the chilled water return temperature is
less than 44F. The data from the National Solar Data Network
(NSDN) indicate that this control may not be functioning. This
control should be checked. When the absorption chiller cycles
off, it should remain off for 3 1/2 minutes. For example on
J1;F 9, 1979, the chilled water return temperature T551 was ap-
proxirately 420F from 1409 to 1553 hours. The absorption chil-
ler appears to have continued functioning during this period.


2) The chilled water tank temperature is being maintained too low.
For example, temperature sensor T502 which is located in the top
of the chilled water tank registered 41.10F at 1450 hours on
June 9, 1979. At this time the chilled water return temperature
sn .or T551 registered 42.20F. Efficiency would increase if the
chilled water tank temperature was increased.


3) auxiliary air conditioners are energized concurrently with
ti .-hilled water pump P7. For example, on June 9, 1979, air
r'jiti.o:;er rumber one was energized from 1259 to 1553 hours







while the absorption chiller was operating and pump P7 circula-
ted 51 gallons of chilled water each minute. The chilled water
return temperature sensor T554 registered an average of 41F
during this period. With chilled water available at a temper-
ature of 410F, the building cooling load could have been within
the capability of the absorption chiller.

Intentional Heat Rejection Heat rejector HX4 operated on 28 days during
June. This is significant because no prior operation of this overheat pro-
tection system has been recorded. On June 28, 1979, at 1101 hours, the
fluid temperature leaving the collectors was 203.60F and after passing
through heat rejector HX4 the temperature was 200.20F. This data provides
a measurement of overheat protection capability.

E. Energy Savings


The Dallas Recreation Center solar energy system resulted in a negative
savings of 0.01 million Btu of natural gas and 6.32 million Btu of elec-
tricity during the month. The negative savings was due to (1) the reverse
flow of energy from the DHW tank to the thermal storage tank and also due
to leakage past valves V4 and V5 and (2) the cooling load supplied by the
absorption chiller required more electricity than would have been required
had a conventional air conditioner supplied the load. For example, the
operating energy for the chilled water system which includes pumps P6, P7
and P8 used 8.49 million Btu. Assuming a COP of 2.5, this would have pro-
duced 21.2 million Btu of cooling from a conventional air conditioner. The
total cooling load supplied by the chilled water was 11.6 million Btu.

III. ACTION STATUS

The operation of the absorption chiller was discussed by phone with Frank
Marshall on May 24, 1979. In order to operate more efficiently, Frank
plans to adjust the absorption chiller controls and install a new conden-
ser high limit switch.











SOLAR HEATfIN' AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


TaR: DALLAS ECRlATjl CENTER 3ALLASTX.
RoRT PERI ID: JUNEt79


SL AR/2338-70/06


SITE/SYSTEM DESCRIPTInI':
THE 0-ALLAS RECREATION CENTER SOLAR ENERGY SYSTEM PROVIDES SPACE
HEATIP;, CODLING AND DOMESTIC HOT WATER. THE SYSTEM USES A 35%
PRESTON II SOLUTION IN THE COLLECTOR HX LOOP. WATER IS USED AS THE
EN;RGY STORAGE MEDIUM. HOT WATER FROM THE STORAGE TANK IS DISTRIBUTED
TO IN-DJCT COILS FOR SPACE HEATING, TO THE GENEPATO? LOOP FCR DOMESTIC
-OT WATER HEATING.


N'DBOES3 L ENERGY


COLLECTED SOLAR ENERGY
AVERAGE AMBIENT TEMPERATURE
A.'RAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSIUMFD


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


HOT WATER
0.898
100
-0.006
0.000
4.001
N.A.
6.668
-0.001
-0.010


HEATING
0.000
0
0.000
0.418
0.000
N.A.
0.000
N.A.
0.000


COOLING
73.340
16
48.501
19.753
17.286
24.694
N.A.
-3.857
N.A.


204.153 MILLION BTJ
55932 BTU/SQ.FT.
57.518 'MILLI-' BT,
15758 3TU/SQ.FT.
81 DEGREES F
79 DEGREES F
0.24
2.462 MILLION BTJ
22.633 MILLION BTU
111.522 MILLION BTU

SYSTEM TOTAL
73.924 MILLION BTJ
17 PERCENT
48.470 MILLION BTJ
22.633 MILLION BTU
4.006 MILLION BTU
24.694 MILLION BTU
6.668 MILLION BTU
-6.320 MILLION BTU
-0.010 MILLION BTU


SYSTEM PERFORMANCE FACTOR:


0.450


* 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 PROGRAM,FEBRUARY 28,1978,
SOLAR/0004-78/18












SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MJLUA T


SITE: DALLAS RECREATION CENTER DALLAS,TX.
REPORT PERIOD' JUNE,1979


SDLAR/2038-79/06


SITE/SYSTEM DESCRIPTION:
THE DALLAS RECREATION CENTER SOLAR ENERGY SYSTEM PROVIDES SPACE
HEATING, COOLING AND DOMESTIC HOT WATER. THE SYSTEM USES A 35%
PRESTON II SOLUTION IN THE COLLECTOR HX LOOP. WATER IS USED AS THE
ENERGY STORAGE MEDIUM. HOT WATER FROM THE STORAGE TANK IS DISTRIBUTED
TO IN-DUCT COILS FOR SPACE HEATING, TO THE GENERATOR LOOP FOR DOMESTIC
HOT WATER HEATING.
GENERAL SITE DATA:
INCIDENT SOLAR ENERGY 215.3r


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 ENG
AUK. ELECTRIC FUEL
AUX. FOSSIL FUEL
ELECTRICAL SAVINGS
FOSSIL SAVINGS


HOT WATER
0.948
100
-30006
0.000
4.221
N.A.
7.035
-0.001
-0.011


HEATING
0.000
0
0.000
0.441
0.000
N.A.
0.000
N.A.
0.000


COOLING
77.374
16
51.169
20.839
18.236
26.052
N.A.
-4.070
N.A.


82 SIGA JOULES


635169 KJ/SQ.M.
60.682 GIGA JOULES
178953 KJ/SQ.M.
27 DEGREES L
26 DEGREES C
0.24
2.597 SIGA J3ULES
23.878 GIGA J3ULES
117.655 GIGA JOULES

SYSTEM TOTAL
77.990 GIGA JOULES
17 PERCENT
51.135 SIGA J3ULES
23.878 SIGA J3ULES
4.226 SIGA JOULES
26.052 GIGA JOULES
7.035 GIGA JOULES
-6.668 GIGA JOULES
-0.011 GIGA J)ULES


SYSTEM PERFORMANCE FACTOR:


0.450


* DEMOTES 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 PROGRAM,FEBRUARY 28,1978,
SOLAR/0004-78/18






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


SS: DALLAS RFCREATION CENTER DALLASTX.
REP0PT PERIOD: JUE,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
SOLAR
ENERGY
MILLION
BTU
1.521
3.186
7.429
6.860
2.799
6.283
6.339
6.819
7.168
8.472
8.471
8.109
8.088
8.099
7.985
8.055
8.010
7.100
6.907
6.845
7.582
7.423
7.995
6.615
4.814
6.560
6.368
7.095
7.642
7.514
204.153
6.805
Q001


AMBIENT
TEMP

DEG-F
70
72
76
79
76
81
85
85
83
72
73
76
79
82
81
81
81
82
86
88
87
87
86
86
77
80
83
86
92
92


81
N113


ENERGY
TO
LOADS
MILLION
BTU
0.000
0.001
2.217
1.902
0.000
1-429
1.615
1.855
2.126
2.397
2.587
2.644
2.667
2.573
2.463
2.529
2.403
1.792
1.877
1 .75C
2.265
2.007
2.034
2.100
1.289
1.214
0.389
0.129
0.133
0.139
48.526
1.618


AUX
THERMAL
TO ECSS
MILLION
BTU
N
0
T
A
P
P
L
I
C
A
B
L
E














N.A.
N.A,


ECSS
OPERATING
ENERGY
MILLION
BTJ
0.000
0.022
0.090
0.085
0.010
0.080
0.080
0.080
0.092
0.101
0.102
0.099
0.100
0.100
0.099
0.100
0.099
0.091
0.089
0.097
0.097
0.108
0.100
0.081
0.047
0.077
0.079
0.082
0.091
0.085
2.462
0.082
Q102


ECSS
ENERGY
REJECTED
MILLION
BTU
0.000
0.376
0.476
0.264
0.029
0.341
0.120
0.426
0.499
0.131
0.150
0.254
0.155
0.362
0.092
0.373
0.366
0.454
0.517
0.533
0.554
0.143
0.000
0.205
0.040
0.444
0.441
2.465
2.713
2.915
14.936
0.498


* DE~TEJ S NOT A PE 0CATA
N.A. DE40TES NOT APPLICABLE DATA.


SOLAR/2338-79/06


E:SS SOLAR
CONVERSION
EFFICIENCY


-0.000
0.303
0.298
0.253
-0.331
0.227
0.254
0.272
0.296
0.283
0.319
0.326
0.333
0.318
0.322
0.314
0.303
0.252
0.271
0.255
0.289
0.270
0.254
0.317
0.268
0.185
0.061
0.018
0.017
0.018


0.23:
N111





SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


COLLECTOBRN RB P ROMANCE


SHIE: DALLAS RECREATION CENTER DALLAS,TX.
REPORT PIOD: JUNE, 979


SDLAR/2038-79/06


DAY
OF
MO4TH


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
SUID
AVG
NBSID


INCIDENT
SOLAR
ENERGY
MILLION
BTU
1.521
3.186
7.429
6.860
2.799
6.283
6.339
6.819
7.168
8.472
8.471
8.109
8.088
8.099
7.985
8.055
8.010
7.100
6.907
6.845
7.582
7.423
7.995
6.615
4.814
6.560
6.368
7.095
7.642
7.514--
204.153
6.805
QOO1


OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU
0.000
1.096
-6.143
5.377
0.528
4.902
5.015
5.547
6.206
7.306
7.321
6.980
7.002
7.029
6.912
6.959
6.924
5.993
5.779
5.829
6.563
6.876
6.947
5.404
3.260
4.833
5.153
6.136
6.744
5.533
167.297
5.577


COLLECTED DAYTIME
SOLAR AMBIENT
ENERGY TEMP
MILLION DEG F
BTU
0.000 71
0.208 76
2.163 84
2.051 88
0.005 76
1.569 87
1.662 91
1.835 91
2.184 90
2.332 78
2.594 81
2.643 88
2.710 89
2.510 91
2.348 89
2.469 89
2.583 88
1.975 *
2.037 92
1.914 94
2.306 94
2.066 96
2.315 91
1.982 96
1.241 86
1.743 89
1.398 92
2.081 94
2.251 102
2.343 *
57.518
1.917 88
Q100


COLLECTOR
ARRAY
EFFICIENCY


0.000
0.065
0.291
0.299
0.002
0.250
0.262
0.269
0.305
0.275
0.306
0.326
0.335
0.310
0.294
0.306
0.323
0.278
0.295
0.280
0.304
0.278
0.290
0.300
0.258
0.266
0.219
0.293
0.295
0.312
-

0.282
N100


* DE43TES UNAVAILABLE DATA.
@ DEVOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.












SOLAR HEATING AND COOLING DFMrEISTRATION PROI;AM


SITE: DALLAS RECREATION CENTER DALLASTX.
EPOT PE RI3D: JUNE,1979


SDLAR/2038-79/13


DNY
0=
M TH

--I-
1
2
3
4
5
S
5
7
8
9


13
13
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
0.000
0.230
2.186
1.920
0.006
1.628
1.664
1.905
2.049
2.441
2.639
2.637
2.652
2.519
2.371
2.460
2.400
1. 909
1.853
1.864
2.187
2.061
2.328
1.846
1.163
1.603
1.369
0.460
0.590
0.354
51.295
1.710
Q200


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


ENERGY
FROM
STORAGE
MILLION
BTU
0.000
0.001
2.217
1.902
0.000
1.429
1.615
1.855
2.126
2.397
2.587
2.644
2.667
2.573
2.463
2.529
2.403
1.792
1.877
1.750
2.265
2.007
2.034
2.100
1.289
1.214
0.389
0.129
0.133
0.139
48.526
1.618
Q201


CHANGE
IN STORED
ENERGY
MILLION
BTU
-0.265
0.21P
-0.090
-0.006
-0.137
0.143
0.006
-0.009
-0.034
0.022
-0.016
-0.016
0.003
0.012
-0.009
-0.031
0.003
0.009
0.003
-0.009
0.022
0.006
0.333
-0.274
-0.069
0.386
1.071
0.280
0.298
0.138
1.989
0.066
Q202
-------~---


STORAGE
AVERAGE
TEMP
DEG F

157
156
161
159
154
157
159
161
160
160
161
161
161
162
162
160
159
158
160
160
164
164
166
163
158
16i
173
191
196
201


164


STORAGE
EFFICIENCY



-600.920
0.954
0.973
0.988
-21.223
0.966
0.974
0.969
1.021
0.991
0.975
0.997
1.007
1.026
1.035
1.015
1.002
0.944
1.014
0.934
1.046
0.977
1.017
0 990
1.049
0.998
1.067
0.889
0.730
0.781


0.985
N108


* DEDOTES UNAVAILABLE DATA.
@ DE4DTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.


STORAGE PERFORMANCE










SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

HODATHY REPORT
HO AFTER SOBSYSTEM


SITE: DALLAS RECREATION CENTER DALLASTX.
REPORT PERIOD: JUNE,1979


SOLAR/2038-79/06


DAY
OF
MON.


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


HOT
WATER
LOAD
MILLION
BTU
0.041
0 038
0.008
0.009
0.036
0.046
054
3.049
0.038
0.001
0.000-
0.041
0.047
0,038
0.046
0.033
0.002
0.000
0.038
0.042
0.037
0,040
0.054
0.012
0.001
0.036
0.037
0.033
0.031
0 048

0.898
0 030
Q302


SDLARt
FR.OF
LOAD
PER
CENT
100
100
100
100
100
100
100
100
100
0
100
100
100
109
100
100
0
100
100
100
100
100
100
100
100
100
100
100
100
100


S100
N300


S3LAR
ENERGY
JSED
MILLION
BTU
-0.000
0.000
0.000
0.000
-0.002
0.000
-0.003
o.cool
0.000
0. 030
0.000
-0.001
0.000,
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000

-0.006
-0.000
a300


0.000


0.000
Q303


OPER
ENERGY
MILLION
BTU
0.000'
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000


AUX
ELECT
FUEL
MILLION
BTU
N
0
T
A
P
P
L
I
C
A
B
L
E


AUX
THERMAL
USED
MILLION
BTU
0.135
0.130
0.168
0.131
0.133
0.159
0.117
0.189
0.103
0.098
0.169
0.099
0.137
0.142
0.136
0.106
0.162
0.133
0.122
0.164
0.120
0.192
0.092
0.100
0.133
0.121
0.174
0.108
0.121
0.104
4.001
S 0.133
Q301


AUX
FOSSIL
FUEL
MILLION
BTU
0.225
0.217
0.280
0.219
0.222
0.265
0.195
0.316
0.171
0.163
0.282
0.165
0.229
0.236
0.226
0.177
0.270
0.22-2
0.204
0.274
0.200
0.320
0.153
0.167
0.222
0.201
0.290
0.181
0.202
0.174
6.668
0.222
Q306


ELECT
ENERGY
SAVINGS
MILLION
BTU
0.0001
0.000
0.000'
0.0001
0.000
0.000
-0.000
0.0000
0.0001
0.000
0.0000
-0.000
0.000
0.000
0.000
0.000
0.000
0.000'
0.000
0.000
0.0000
0.000,
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-0.001
-0.000
Q311


FOSSIL
ENERGY
SAVINGS
MILLION
BTU
-0.001
0.000
0.030
0.000
-0. :34
0.030
-0.004
0.000
0.000
0.000
0.000
-0.001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-0.010
-0.000
Q313


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


N.A.
N-A.
Q N35.
Q305


SJP.
WAT.
TEMP
DEG
F
78
79
77
BO
83
82
83
82
79
78
80
83
83
80
80
80
80
81
82
83
84
86
83
83
85
85
89
91
93
95


83
N305


HOT
WAT.
TEMP
DEG
F
134
133
133
132
132
132
132
133
131
130
133
134
134
134
134
133
133
133
132
132
132
133
131
132
135
134
132
133
135
134


133
N307


HOT
WATER
USED
GAL
84
16
18
76
971
114
1081
85
2
0
87
100
82
99
74
5
0
841
98
87'
98
133
29
2
89
91
85
81
122
4
2050
68
N308







SOLAR HEATIN;g AND COOLING DEMONSTRATION PPRGRAM

mSPACF HLY REPRTFM
SPACE HEATING SUBSYSTEM


SOLA2/2038-79/06


= T DRE -T CENTER DALLAS,TX.


DAY
OF



1
3
5

14
7






23
I0
1!
12
13
15
26
17
29
19
20
21
22
23
25
25
26
27
28
29
30
SlJI
AVS
NBS


SPACE
HEAT I '1
L3AD
MILLION

0.000
0.0 3
S0 033
.0 00


0.000
0. 0310
0. ' 0.000
0.000
0.000
0.000
0.000
0.000
0.000



0.000
0.900
0.000
0 000
0.000
0.000






0.030
0.000
Q4000
0.000
0.030





0.000

Q402


SOLAR
FR.OF
LOA
PCT


0
0
0
3,
0
0
0
0
30
0
3
0
0
0

0
3


0
0
0


0


00
0
0
0
0
0


0
0
0
0


0
N400


S3LAR
ENERGY
JSED
MILLI ON
BTU
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
o.0 ooo000

0.000
0.000
0.000
0.000
0.000'
0.0001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0. 0001

0. 000

0.000
0.000,
0.000
0.000
0.000
0.000
0.000

------ -- 1
Q400


SDEOTES UNAVAI ABLE DATA.
@ DEOTE NJULL DTA.
N.A. DENOTES NOT APPLICABLE DATA.


OPER
ENERGY
MILL ION
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
3.000
3.000
3.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.169
0.249
0.000
0.418
0.014
Q403


AUX
ELECT
FUEL
MILLION
BTU


AUX
THERMAL
USED
MILLION
BTU
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0;000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
Q401


AUX
FOSSIL
FUEL
MILLION
BTU
0.000
0.000
0.000
0.300
0.001
0.300
0.000
0.0001
0.000
0.000
0.000
0.000
0.000
0.000
0.0001
0.000
0.000
0. 00
0.000
0.000
0.300
0.0001
0.000
0.000
0.000
0.000
0.000!
0.000
0.000
0.000
0.000
0.000
Q410


ELECT
ENERGY
SAVINGS
MILLION
BTU

0
T
A
P
P
L
I
C
A
B
L
E














N.A.
N.A.
Q415


FOSSIL
ENERGY
SAVINGS
MILLION
BTU
0.000
0. 30
0. 00
0. 000
0. 00

0.300
0.000
0.300
0.3000
0.000'
0.3000

0.0000
0.300
0.000
0.300
0.3000
0.000
0.000
0.000
0.000
0.000
0 000
0.300
0.300
0.000
0.300
0.000
0.300



0.000
0.000
Q417


N.A.
N.A.


3LOG
TF ")
TEMP
DEG.
F
76
76
76
76
77
79


77
77
76
76

77
77
77
78
80
82
83
84
83
82
83
82
87
85
81
78


79
S---06-
4406


AMB
TEMP
DEG.

70

79
75





79
82
81
85
85
83
72
73
76
79
82
81
81
81
82
86
87
87
86
86
77
80
83
92



81
N113










SOLAR HEATING AND--COOLING DEMONSTRATION PROGRAM
MONTHLY REPORT
SFACE COOLING SUBSYSTEM


SITE:-DALLAS RECREATION CENTER
REPORT PERIOD: JUNE,1979


DALLASTX.


SOLAR/2038-79/06


I----
DAY--
OF
MON.


1
2
3
4
5
5
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
AV3-
NBS


SPACE
COOLING
LOAD
MILLION
BTU
1.107
0.514
0.683
2.580
2,126
2.799-
3.384
2.548
1.678
0. 651
1.806
2.105
2.465
3.129
3.120
1.888
1.977
37 119
3.659
3.963
3.724
3.479
2.015
1.904
3.210
27--527
1.248
3.243
4.264
2.427
73.340
2.445
Q502


SOLAR
FR.OF
LOAD
PCT

0
0
86
41
0
19
6
10
35
74
49
68
40
18
20
52
42
9
11
7
9
9
7
4
3
6
-4
-3
-3
-3


16
N500


SOLAR
ENERGY
USED
MILLION
BTU
0.000
0.000
2.217
1.900
0,000
1. 424
1.615
1.855
2.123
2-.-397
2.587
2.644
2.667
2.573
2.463
2.529
2.403
1.791
1.8751
1.747
2.265
2.007
2.034
2.098
1.2891
1.213
0.389
0.124
0.133
0.139'
48.501
1.61-7
0500


OPER
ENERGY
MILLION
8TU
0.300
0.000
0.619
0.604
0.000'
0 495
0.562
0.672
0.658
0 623
0.645
0.713
0.700
0.744
0.721
0.688
0.676
0.574
0.692
0.729
0.812
0.623
0.759
0.869
0.535
0.720
1.118
1.116
1.024
1. 062
19.753
0.658
0503


AUX
THERMAL
USED
MILLION
BTU
0.310
0.144
0.027
0.425
0.595
0.632
0.893
0.643
0.307
0.048
0.260
0.190
0.415
0.714
0.696
0.253
0.320
0.790
0.916
1.035
0.946
0.891
0.527
0.514
0.876
0.664
0.374
0.941
1.236
0.706
17.286
0.576
0501


AUX
ELECT
FUEL
MILLION
BTU
0.443
0.206
0.038
0.608
0.851
0.903
1.276
0.919
0.438
0.068
0.371
0.272
0.592
1.020
0.995
0.361
0.457
1.129
1.308
1.478
1.351
1.273
0.753
0.734'
1.251
0.-948
0.534
1.344
1.765
1. 009
24.694
0.823


AUX
FOSSIL
FUEL
MILLION
BTU
N
0
T
A
P
P
L
I
C-
A
B
E













N.A.
N.A.
Q508
Q508


ELECT
ENERGY
SAVINGS
MILLION
BTU
0.000
0.000
-0.058
0.133
0.000
-0.031
-0.194
-0.209
-0.0831
-0.083
0.051
0.238
0.068
-0.097
-0.063
0.061
0.004
-0.152'
-0.157
-0.232
-0.237'
-0.177
-0.271
-0.366
-0.1901
-0 18 1
-0.334
-0.391
-0.450
-0.4551
-3.857
-0.129
Q512


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


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













N.A.
N.A.
Q514


BLDG
DRY
BULB
TEMP
F
76
76
76
76
76
77
78
78
77
76
76
76
77
77
77
77
77
78
80
82
83
84-
83
82
83
82
87
85
81
78
-7
79
N406'


AMB
TEMP
DEG-
F
70
7?
76
79
76
81
85
85
83
72
73
75
79
82
81
81
81
82
86
88
87
87
86
86
77
80
83
86
92
92


81
N113








Sr- t AI HEATING A"') COOLING EMJ.L'SSTPATI O PROGRAM
MONTHLY REPD)T
ENVIRONMENTAL SUHA- Y

SITE: 3ALLAS RE REAT In;, CENTER DALLAS,TX.
E NOP; T PE.10): JJ'; 979


SOLAP/-33 -7Q/I6


IAY
3L
S'NT H

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
SU4
AVG
NBS ID


TOTAL
INSDLATI 1
BTJ/S). FT
f17
973
2335
1380
767
1721
1737
1368
1954
2321
2321
2222
2216
2219
2188
2207
2194
1945
1945
1892
1875
2077
2334
2190
1812
1319
1797
1745
1944
2094
2359
55932
1864
Q001


DIFFUSE
INSOLATI 3l
BTU/SQ.FT
N
T
A
P
P
L
I
C
B
L
E














N.A.
N.A.
i---------------


-----------
AMBIENT
TEMPERATE .RE
DEG F
70
72
76
79
76
81
85
85
83
72
73
76
79
82
81
81
81
82
86
88
87
87
86
86
77
80
83
86
92
92


dlN
N113


DIRECTION
rDE F S
N

T
A
p
P
L
I
C
A
B
L
E


DAYTIME RELATIVE
AMBIENT HUMIDITY
TEMP
DEG F PERCENT
71 N
76 0
84 T
88
76 A
87 P
91 P
?1 L
90 I
78 C
31 A
88 B
89 L
91 E
89
89
88
*
92
94
04
96
91
96
86
89
92
94
102
*

88 N.A.
88 N.A.


WI ND)


S.P. -i.
m I
3
T

A
P
L
I



L
E
















N. A.
N114


* DENOTES UNAVAILABLE DATA.
@ DENOTES NULL DATA.
N.A. DENOTES N3T APPLICABLE DATA.


N.A.

N115





SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REP RT
THERMODYNAMIC CONVERSION EQUIPMENT


SITE: DALLAS RECREATION CENTER DALLAS,TX.
RPOIT PERIOD: JUNE.1979


SOLAR/2038-79/06


DAY
OF
MONTH


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


EQUIPMENT
'OAD
MILLION
BTU
0.000
0.000
0.860
1.012
0.000
0.720
0.319
0.343
0.782
0.705
1.052
1.520
1.147
0.774
0.814
1.185
1.022
0.529
0.499
0.419
0.540
0.455
0.256
0.299
0.189
-0.070
0.022
0.264
0.280
0.291
16.227
0.541


THERMAl
ENERGY
INPUT
MILLION
BTU
0.000
0.000
2.217
1.900
0.000
1.424
1.615
1.855
2.123
2. 397
2.587
2.644
2.667
2.573
2.463
2.529
2.403
1.791
1.875
1.747
2.265
2.007
2.034
2.098
1.289
1.213
0.389
0.124
0.133
0. 139
48.501
1.617
/-----------


OPERATING
ENERGY
MILLION
BTU
0.000
0.000
0.293
0.291
0.000
0.248
0.272
0.309
0.316
0.275
0.301
0.333
0.326
0.328
0.316
0.333
0.330
0.270
0.313
0.338
0.376
0.296
0.323
0.394
0.224
0.243
0.300
0.344
0.390
0.417
8.500
0.283


ENERGY
REJECTED
MILLION
BTU
0.000
0.000
3.079
2.630
0.000
2.099
1.890
2.104
2.865
3.037
3.719
4.071
3.698
3.270
3.295
3.660
3.378
2.302
2.323
2.148
2.650
2.374
2.043
2.437
1.260
0.998
0.000
0.000
0.000
0.000
61.329
2.044


* DENOTES UNAVAILABLE DATA.
@-DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE DATA.
NOTE:


COEFFICIENT
OF
PERFORMANCE
(SEE NOTE)

0.000
0.000
0.388
0.533
0.000
0.505
0.197
0.185
0.368
0.294
0.407
0.575
0.430
0.301
0.330
0.469
0.425
0.295
0.266
0.240
0.238
0.227
0.126
0.142
0.146
-0.058
0.057
2.127
2.105
2.100
0.335
0.011
- -














UNIVERSITY OF FLORIDA


3 1262 09052 1104




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