Monthly performance report

MISSING IMAGE

Material Information

Title:
Monthly performance report Reedy Creek utilities
Uncontrolled:
R eedy Creek utilities
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 -- Florida -- Lake Buena Vista   ( lcsh )
Solar houses -- Florida -- Lake Buena Vista   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
National Solar Data Program.
General Note:
Monthly Catalog Number: gp 80007813
General Note:
National Solar Heating and Cooling Demonstration Program.
General Note:
"SOLAR/2018-79/03" ; "SOLAR/2018-79/04" ; "SOLAR/2018-79/05" ; "SOLAR/2018-79/06."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027035624
oclc - 05930594
System ID:
AA00013857:00004


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SOLAR/2018-79/03

Monthly

Performance

Report





REEDY CREEK UTILITIES
MARCH 1979


U.S. Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


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
REEDY CREEK UTILITIES
MARCH 1979


I. SYSTEM DESCRIPTION


The Reedy Creek site is a two story, 5,625 square foot concrete block
office building located in Lake Buena Vista, Florida. The solar energy
system is designed to provide space heating, domestic hot water and
space cooling.


The collector subsystem is composed of a horizontal array of 16 parabolic
trough collectors, manufactured by AAI Corporation, with tracking absorber
tubes. The collector array is an integral part of the building's roof,
with the reflector troughs oriented so that each major axis is in an
east-west direction. The 16 absorber tubes are moved in unison in a
north-south direction by the solar tracking system. The total collector
aperture area is 3,840 square feet. Water is used as the heat collec-
tion, transfer, and storage medium. Collected solar energy is stored in
a 10,000-gallon hot water tank, located adjacent to the building and
shaded by the roof. Domestic hot water is provided by a heat exchanger
immersed in this tank. Space heating is provided by circulation of hot
water from the storage tank through heat exchangers located in the
central air distribution system. No auxiliary energy is provided for
either domestic hot water or space heating.


A 25-ton absorption chiller utilizes hot water from solar storage to
provide chilled water to a 10,000-gallon cold water storage tank. For
space cooling, water from this cold tank is circulated through heat
exchangers located in the building's central air distribution system.
Auxiliary cooling is provided by supplemental cold water from the
utility district's central chiller plant, which is powered by fossil
fuels.










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


Mode 1 Collector-to-Storage: This mode is entered when the collector
absorber plate temperature is 100F higher than the temperature at the
bottom of the hot storage tank (water solar thermal storage). Water is
circulated through the collector array-storage loop by pump P1 until the
temperature of the water at the bottom of storage rises to within 30F of
that of the collector absorber plate.


Mode 2 Storage-to-Space Heating: This mode is entered when the
temperature falls below the setting of the thermostats located in the
occupied areas. Since this is the only means of space heating avail-
able, no minimum tank temperature is specified. Pump P2 causes hot
water to flow directly from the storage tank to the heat exchanger in
the air-handling unit, and back to the storage tank.


Mode 3 Domestic Hot Water Heating: Domestic hot water (DHW) is provided
by passing city supply water through a heat exchanger immersed in the
solar thermal storage tank. No conventional water heater exists, thus
water is heated only upon demand. A tempering valve is used when neces-
sary to reduce the temperature of water leaving the heat exchanger. If
the water is too hot, cold supply water is mixed with it in the tempering
valve before going to the domestic hot water line.

Y'ode 4 Chilled Water Production: This mode is entered when the
temperature of the water in the top of the solar thermal storage tank
is at or above the generator operating temperature (nominally 1800F) and
that of the water at the bottom of the 10,000-gallon chilled water
storage is greater than 450F. Hot water is drawn from the solar thermal
storage tank to operate the generator section of the absorption chiller
and cold water is circulated through the chiller from the chilled water
storage. Energy is removed from the cold water, lowering its tempera-
ture; th, energy is rejected though the cooling tower, and the cold
water returns to the chilled water storage tank. Whenever the temperature













* 1001 COLLECTOR PLANE TOTAL INSOLATION
SI1002 COLLECTOR PLANE DIFFUSED INSOLATION
V T001 OUTDOOR TEMPERATURE
SPACE
HEATING
OR COOLING
SUPPLY


EP102
(TRACKING
MECHANISM)

EP403
W401 --, 5--I
T402
I------oo----" T .oS
T452
10,000- l T201 V3
GAL COOLING TOWER
WATER EP401 T502
SOLAR
THERMAL P3
EP101 T T2 T552 V
SP49 EP503
T203 -- V4 W502 T551

T350 T300 T501
i w3o00 I rHIL T553 EP502 T505 _.__._ 0

CHI LLE T503 P5 -W03 GAL 00
EP501 y CHILLED T
V2 WATER T554
-TEMPERING STG v T5
VALVE T205 T55 T5T044


.--- T302

V8 M

AUXk 0 EP402
CHILLED F|
WATER


REVISED 4/5/79


Figure 1. REEDY CREEK SOLAR ENERGY SYSTEM SCHEMA TIC


COLD WATER
SUPPLY


DOMESTIC
HOT
WATER










of the water going to the generator exceeds the upper limit of 1950F,
the water is tempered with cooler water returning through valve V4.


Mode 5 Space Cooling: The space cooling mode is initiated when the
building temperature exceeds the setting of the conditioned space
thermostat. Chilled water from the chilled water storage is then
circulated by pump P6 to the heat exchangers in the building air distribu-
tion system. If the chilled water storage system is not able to meet
the cooling load, an auxiliary chilled water supply is available from
the central energy plant.


II. PERFORMANCE EVALUATION


A. Introduction


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 Reedy Creek solar energy system operated continuously throughout the
Tionth of March. The domestic hot water demand was 0.17 million Btu; the
space heating demand was 5.59 million Btu; the space cooling demand was
6.17 million Btu. The solar energy system supplied 100 percent of the
domestic hot water and space heating requirements, and 98 percent of the
space cooling requirements these quantities are reported in the attached
computer printout as loads.


B. Weather


For March, the average outside ambient temperature measured at the site
-.as 66'F. The long-term average temperature is 65.90F at the Orlando
weather station. The average measured insolation in the plane of the
array was only 1,501 Btu/ft2-day. This is considerably less than the
long-tern average of 1,746 Btu/ft 2-day for March, which was derived from
measurerenrts ta'r-n at the Tampa weather station.









C. System Thermal Performance


Collector Of the 178.7 million Btu incident on the collector array,
29.6 million Btu were collected and delivered to the solar thermal stor-
age tank. This represents an array efficiency of 16.6 percent. Operating
energy of 1.6 million Btu (463 kwh) was required to collect and store
this solar energy.


Storage Of the 29.6 million Btu delivered to storage, 19.4 million Btu
were subsequently removed for use within the system. Temperature probes
within the solar thermal storage tank indicate that the internal energy
of the water increased by 1.7 million Btu during the month. This indi-
cates a resulting loss to the environment of 8.5 million Btu through the
tank insulation. A further discussion of the tank insulation heat trans-
fer is contained in Section II-D, Observations.


Domestic Hot Water Domestic hot water is provided to the building by
passing city water through a heat exchanger that is immersed in the
solar thermal storage tank. A total of 370 gallons of water at an
average temperature of 1300F were supplied by this system during March.
The average temperature increase was 600F, which resulted in a measured
demand of 0.17 million Btu. All of this energy was supplied by the
solar energy system. There was no operating energy required.


Space Heating Space heating was required during a portion of 18 differ-
ent days during March. Hot water was pumped from the solar thermal stor-
age tank to a heat exchanger coil in the air ducts to satisfy this require-
ment. An operating energy expenditure of 0.8 million Btu (229 kwh) was
required to satisfy the 5.6 million Btu demand.


Absorption Chiller The absorption chiller operated on nine occasions
to reduce, the chilled water storage temperature during March. Use of 0.11
million Btu from the auxiliary conventional cooling system was required
to assist the absorption chiller to meet the cooling load on one day of
the month. The absorption chiller utilized 13.67 million Btu from the











solar therrial storage tank to remove 7.41 million Btu from the chilled
water storage (see attached Auxiliary Performance data). The resulting
coefficient of performance of 0.542 compares favorably with the average
C.O.P. value of 0.52 observed in this system during the previous five
months of operation.


Chilled Water Storage Performance of the chilled water storage (see
attached Auxiliary Storaqe Performance data) shows that 7.41 million Btu
were removed by the chiller, 6.01 million Btu were added from the
conditioned space during cooling, and the internal energy of the chilled
water storage decreased by 1.45 million Btu. This implies that 0.03
million Btu were lost through the insulation to the environment. Note
that the second and third columns of the Auxiliary Storage Performance
Table have been changed. The second column, "Energy To Storage", repre-
sents the thermal energy removed from the air and put into the chilled
water storage tank. The third column, "Energy From Storage", represents
the thermal energy removed from the chilled water storage tank by the
absorption chiller. In reports prior to February, the values in these
columns were reversed. A further discussion of the tank insulation heat
transfer is contained in Section II-D, Observations.


Space Cooling Space cooling was required on all but two of the working
days of the month. The space cooling load was 6.17 million Btu. Water
from the chilled water storage was pumped through the air duct heat
exchangers to remove 6.01 million Btu. Chilled water from the central
plant .as required to assist in supporting the cooling load during one
day of the -orith March 5. This resulted from the previous use of the
chilled v.ater storage for space cooling, which had raised the storage
terpFrature to a level near the room temperature. Meanwhile, insuffi-
cient insolation had prevented use of the absorption chiller.


D. _'i,--ervations

r-.:vious rthly reports had contained estimates of the insulation
:,.rfor-.>i e for 'he solar thermal and chilled water storage tanks. This










estimate was based on the indicated energy transfer between the tanks
and the ambient environment, the monthly average tank and ambient
temperatures, and the surface areas of the tanks. However, this estimate
has proven not to be accurate when calculated using the monthly averages,
particularly when a tank temperature is near the ambient temperature.
The transfer of energy through the insulation is an hourly and daily
phenomenon and may actually reverse directions during a month duration;
the monthly averages do not reflect this information. Additionally,
during a period such as this month, when a tank temperature is near
ambient, the 0.250 accuracy of the temperature sensors may not be suffi-
cient to quantify the actual temperature differences. These sensors
were not intended to be used for this purpose, and the estimate of the
insulation performance will be made only when there is sufficient tempera-
ture difference to make the sensor errors a small function of the total
measurement.


Several of the values in the Storage Performance Table for March may be
misleading without additional explanation. As mentioned previously, it
is very difficult to make precise energy measurements of the exact
amount of energy contained in a large storage tank with three sensors.
The occurrence of thermal stratification can become misleading in calcu-
lating the average or total energy, and therefore, the value calculated
for the change in stored energy may become questionable if the flow into
and out of the tank is small. Therefore, the values shown for storage
efficiency in the Storage Performance Table may become questionable as
the values measured for energy into, energy from, or change in energy of
the storage system become quite small (approximately 0.2 million Btu or
less).


Near the end of February, all sensors at Reedy Creek were recalibrated
to maintain maximum accuracy. Following that recalibration, the tempera-
ture sensor for the water exiting the generator of the absorption chiller
appears to be indicating a temperature approximately 1.4*F high. Tempo-
rary modifications have been incorporated into the performance analysis
software to compensate for this, as it is being investigated.











E. Energy Savings


Total system electrical energy savings of 0.9 million Btu (265 kwh)
were realized. This value assumes that, had there not been a solar
energy system, the energy requirements would have been met by an electri-
cal hot water heater and by a conventional electrical heat pump.


III. ACTION STATUS


The discrepancy of the temperature sensor at the generator exit of the
absorption chiller is being investigated.











SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: REEDY CREEK
REPORT PERIOD: MARCH 1979


SOLAR/2018-79/03


SITE/SYSTEM DESCRIPTION:
THE REEDY CREEK SITE IS A 5625 SO. FT. CONCRETE BLOCK OFFICE BUILDING.
THE LIQUID SYSTEM EMPLOYS 3840 SO. FT. OF PARABOLIC TROUGH COLLECTORS
WHICH FORM AN INTEGRAL PART OF THE ROOF. THE SYSTEM IS DESIGNED TO PROVIDE
SPACE HEATING, COOLING, AND DOMESTIC HOT WATER. STORAGE CONSISTS OF 10,000
GALLONS OF BOTH HOT AND COLD WATER. AN ABSORPTION CYCLE CHILLER PROVIDES
COOLING, A RADIANT HOT WATER COIL PROVIDES HEATING AND A COIL SUBMERGED IN
THE HOT STORAGE TANK PROVIDES HOT WATER. AUXILIARY COOLING IS PROVIDED BY
CHILLED WATER FROM THE CENTRAL COOLING PLANT. THERE IS NO AUXILIARY DHW OR
HEATING.

GENERAL SITE DATA:
INCIDENT SOLAR ENERGY 178.732 MI


COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CONSUMED


LLION BTU


46545 BTU/SQ.FT.
29.612 MILLION BTU
7712 BTJ/SQ.FT.
66 DEGREES F
69 DEGREES F
0.11
1.583 MILLION BTU
5.995 MILLION BTU
35.651 MILLION BTU


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
0.170
100
0. 170
N.A.
N.A.
N.A.
N.A.
0. 170
N.A.


HEATING
5.593
100
5.593
0.781
N.A.
N.A.
N.A.
2.132
N.A.


COOLING
6.173
98
13.674
3.630
0.110
0.044
N.A.
0.186
N.A.


SYSTEM TOTAL
11.935 MILLION
99 PERCENT
19.436 MILLION
5.995 MILLION
0.110 MILLION
0.044 MILLION
N.A. MILLION
0.904 MILLION
N.A. MILLION


SYSTEM PERFORMANCE FACTOR:


0.594


* 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


BTU

BTU
BTU
BTU
BTU
BTU
BTU
BTU









SOLAR HEATI,, AND COOLING DEMONJSTRATICN PROGRAM


MONTHLY REPORT
SITE SUMMARY


SITE: REEDY CREEK
REPORT PERIOD: MARCH,1979


SOLAR/2018-79/03


SITE/SYSTEM OrSCRIPTION:
THE REEDY CREEK SITE IS A 5625 SO. FT. CONCRETE BLOCK OFFICE *-UILOING.
THE LIOJID SYSTEM EMPLOYS 3840 SQ. FT. OF PARABOLIC TROUGH COLLECTORS
WHICH FORM AN INTEGRAL PART OF THE ROOF. THE SYSTEM IS DESIGNED TO PROVIDE
SPACE H-ATINrG, COOLING, AND OOMFSTIC HOT WATER. STORAGE CqNSISTS -c 10,000
GALLONS OF BOTH HOT AND COLD WATER. AN ABSORPTION CYCLE CHILLEP PROVIDES
COOLING, A RACIANT HOT WATER COIL PROVIDES HEATING AND A COIL SUBMERGED IN
THE HOT STORAGE TANK PROVIDES HOT WATER. AUXILIARY COOLING IS PROVIDED BY
CHILLED WATER FROM THE CENTRAL COOLING PLANT. THERE IS NO AUXILIARY DHW OR
HEAT NG.

GENERAL SITE 3ATA:
INCIDENT SOLAR ENERGY 188*562 GI


COLLECTED SOLAR ENERGY

AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SCLAR 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
0.179
100
0 179
N.A.
N.A.,
N.A.
N.A.
0 179
N.A.


HEATING
5.900
100
5.900
0.824
N.A.
No.A.
N.A.
2. 249
N.A.


COOLING
6.513
98
14.426
3.830
0.116
0.046
N.A.
0.197
N.A.


GA JDJLES


528563 KJ/SQ.M.
31.241 GIGA JOULES
87573 KJ/SQ.M.
19 DEGREES C
21 DEGREES C
0.11
1.671 GIGA JOULES
6.325 GIGA JOULES
37.612 GIGA JOULES


SYSTEM TOTAL
12.592 GIGA JOULES
99 PERCENT
20.505 GIGA JOULES
6.325 GIGA JOULES
0.116 GIGA JOULES
0,046 GIGA JOULES
N.A. GIGA JOULES
0.954 GIGA JOULES
N.A. GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


0.594


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

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











SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)


SOLAR/201 8-79/03


SITE: REEDY CREEK
-REPORT PERIOD: MARCH,1979


DAY
OF
MONTH


1
2
3
4
5
6
7
8
9
10
11I
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

5.241
4.610
3.568
3.347
0 .475
6.816
3.908
69927
7. 016
3.328
6.926
5.927
5.860
7.513
5.563
4.406
6.877
7.175
6. 877
7.170
5.382
1. 157
7.118
6.664
7.864
7.820
7. 547
6.174
7.143
6.569

178.732

5.766

0001


AMBIENT
TEMP


DEG-F

72
71
71
71
60
59
60
62
65
56
59
66
70
63
65
67
67
69
70
71
71
69
70
62
57
64
69
70
73
73


66

N113


ENERGY
TO
LOADS
MILLION
BTU

0 .187
0.001
0.001
0.011
0.301
0.424
0.548
0 367
1 793
0.000
0 524
0.328
1 450
0.271
1.366
0.000
0.000
2.070
0.229
2. 068
0.011
0.006
0.000
1. 499
0.562
1 .935
S1224
0.166
1.465
0.000

19.436

0.627


AUX
THERMAL
TO ECSS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E
















N.A.

N .A.


ECSS
ENERGY
REJECTED
MILLION
BTU

N
0
T


ECSS
OPERATI NG
ENERGY
MILLION
BTU

0.032
0 037
0.017
0.017
0.000
0.075
0.021
0.077
0.075
0. 013
0.071
0.050
0.057
0.075
0.036
0.033
0.061
0.075
0.073
0.075
0.035
0.000
0. 071
0.061
0.078
0 076
0.075
0.052
0.065
0.051

1 .583

0.051

0102


ECSS SOLAR
CONVERSION
EFFICIENCY



0.036
0.000
0.000
0.003
0.634
0 062
0.140
0. 053
0.256
0.000
0.076
0.055
0.247
0.036
0.246
0.000
0.000
0.288
0.033
0 288
0.002
0.005
0.000
0.225
0.071
0.247
0.162
0.027
0.205
0.000
-----------^--

0.109

N111


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


N.A.

N.A.










SOLAR HEATING AND CCOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE

SITE: REEDY CPEEK
REPORT PERIOD: MARCH.1979


SCLAR/2018-79/03


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

NBSI D


INCIDENT
SOLAR
ENERGY
MILLION
BTU

*
5.241
4.610
3.568
3.347
0.475
6.816
3.908
6.927
7.016
3.328
6.926
5.927
5.860
7.513
5.563
4.406
6.877
7. 175
6 877
7. 170
5.382
1 157
7. 118
6.664
7 864
7.820
7.547
6. 174
7.143
6.569

178.732
----------
5.766

0001


OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU

2.303
20465
0 877
1.310
0.000
60244
1 .459
6.421
6 .240
0.994
6.042
4.327
4.550
6.672
3.359
2.704
5.502
6.465
5.995
6.393
2.763
0.000
6. 156
5.360
7 043
6.818
6.582
4.388
5.905
4.503

134.167
4 ---------328
4*328


DAYT I ME
AMBIENT
T EMtP
DEG F


COLLECTED
SOLAR
ENERGY
MILLION
BTU

*
0.322
0.398
-0. 062
0.120
0.000
1 .606
0.378
1.617
1.607
0.074
1 450
0.755
0.970
1.618
0.579
0.435
1.086
1 545
1 .385
1.635
0.447
0.000
1 484
1. 141
1.775
1 765
1.518
0.891
1 354
0.765

29.612
----------
0.955
QIOO0I


COLLECTOR
ARRAY
EFFICIENCY



0.062
0.086
-0.017
0.036
0.000
0.236
0.097
0.233
0.229
0.022
0.209
0.127
0*166
0.215
0.104
0.099
0 158
0.215
0.201
0 228
0 083
0.000
0.208
0.171
0.226
0.226
0.201
0.144
0. 144
0. 190
0.117

-----------
0.166

N100


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


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


75--------

---------










SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
STORAGE PERFORMANCE


SITE: REEDY CREEK
REPORT PERIOD: MARCH,1979


SOLAR/2018-79/03


DAY
OF
MONTH


1
2
3
4
5 1
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 IDI


ENERGY
TO
STORAGE
MILLION
BTU

0.322
0.398
-0.062
0.120
0.000
1.606
0.378
1.617
1.607
0.074
1 450
0.755
0.970
1.618
0.579
0.435
1.086
1 .545
1.385
1.635
0.447
0.000
1 .484
1.141
1.775
1 765
1.518
0.891
1.354
0.765

29.612

0.955

0200


ENERGY
FROM
STORAGE
MILLION
BTU

7
0.187
0.001
0.001
0.011
0.301
0.424
0.548
0.367
1 793
0.000
0.524
0.328
1 .450
0.271
1 366
0.000
0.0003
2.070
0.229
2.068
0.011
0. 006
0.000
1 499
0.562
1.935
1.224
0 166
I 465
0.000

19.436

0.627

Q201


CHANGE
IN STORED
ENERGY
MILLION
BTU

0. 190
0.232
-0.126
-0.084
-0.527
1.285
-0.273
1.102
0.744
-0.210
0.839
0.335
-0.911
1.078
-1.057
0.147
0.764
-0.901
0.911
-0.911
0.094
-0.262
1.194
-1 037
1 068
-0.785
-0.283
0.503
-0.566
0.587

1.705

0.055

0202


STORAGE
AVERAGE
TEMP
DEG F

*
145
146
147
146
142
146
152
157
163
155
158
166
164
163
165
157
164
165
162
165
158
156
163
165
163
169
162
160
162
160


158


------ I
STORAGE
EFFICIENCY


_---------,J
I
1.170
0.585
2.019
-0.609
1.000
1 065
0.727
0.908
0.653
-2. 845
0.940
0.878
0.555
0.834
0.533
0 337
0.704
0.757
0.823
0.708
0 236
1.000
0.805
0.406
0.918
0.652
0.620
0.751
0.664
0.767


0.714

N108


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









SOLAR HEATING ANL COCLING DEMONSTRATICN PRCG~PAM


MONTHLY REPORT
HOT WATER SUBSYSTEM


SOLAR/2018-79/03


SITE: REEDY CREEK
-tOPURT PERIOD: MARCH,1979


DAY
OF
.I N .




2
3
4
5
6
7
8
9
10

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS


HOT
WATER
LOAD
MILL I N
BTU


0 004
0.001
0.00 1
0.007
0.004
0.006
0.007
0.008
0.000
0.000
0 004
0.013
0.0071
0.009
0.006
0.000
0.000
0.0101
0.007
0.010
0 01 1
0.006
0.0001
0.000
0.0151
0.0071
0.004
0.008
0.010
0 000

0.170

0.0051

Q302


SOLAR
FR.OF
LOAD
PER
CENT

00
100

100
100
100
100
100o
100
1001
0
100
100'
100!
100
100
100
00
100

100
100
100
100
0
0
100
100
100
100
100
0


100

N300


SOLAR
ENERGY
USED
MILLION
BTU

S|
0.004
0.001
0.001
0.007
0.0041
0.006
0.0071
0.0081
0.000
0.0001

0 013
0.0071
0.009
0.006
0.000
0.000
0.0101
0.007
0.0101
0.011
0.006
0.000
0.015
0.0071
0.004,
0.008
0.010
0.000

0.170

0.005

Q300


OPER
ENERGY

MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E

















N.A.


0303


AUX
THERMAL
USED
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E

















N.A.

N.A.

Q301


N.A.

N.A.

0305


AUX
FOSSIL
FUEL
MILLION
BTU

N
0
T

A!
P
P
L
I
C'
A
B
L
E


N .A.

N. A.

0306


AUX
ELECT
FUEL
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
8
L
E


FOSS IL
ENERGY
SAV INGS
MILLION
BTU

N
0
T


ELECT
ENERGY
SAVINGS
MILLION
BTU


0.004
0.001
0.001
0.007(
0. 004'
0.0068
0.0071
0.008
0.0001
0.000
00040
0.0131
0.007
00009'
0.0061
0.000
0.000
0.010
0.007
0 .010
0.011
0.0061
0.000
0,000;
0.015
0. 007
0.004
0.008
0.010
0.000|

0.1701

0.005,

0311


SJP.
WAT.
TEMP
DEG
F

70
70
70
70
70
70
70
70
70
70
70
70
701
70
701
701
70
701
70
701
70.
70
70
701
70
70
70
70
70
70
701


N.A. 70

13 N3051


HOT
WAT.
TEMP
DEG
F


107
127
124
124
114
114
122
127
136
136
133
137
132
129
135
137
137
136
133
137
135
135
125
125
128
129
136
129
132
143



130

N307;


HOT
WATER
USED

GAL
1
8
2
2
181
13
17
17
17
0
0
10
26
14
19
13
0
0
19
17
18
21
12
0
0
34
15
9
17
20
0

370

12

N308


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


03











SCLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE HEATING SUBSYSTEM


SOLAR/2018-79/03


SITE: REEDY CREEK
REPORT PERIOD: MARCH,1979


tn


DAY
OF
MON.


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM
AVG

NBS


SPACE
HEAT ING
LOAD
MILLI ON
BTU

0.184
0.000
0.000
0. 004
0.297
0.418
0.541
0 359
0.000
0. 000
0.520
0.315
0. 21.6
0 .261
0.295
0.000
0.000
0.392
0.222
0.117
0 000
0.000
0.000
0.000
0.548
0.356
0.209
0.158
0.000
0.000

5.593
0.180

0402


SOLAR
FR.OFI
LOAD
PC T


100
0'
01
100
1001
100
100
1001
01
0
100
100
100
100
100
0
0|
100
100
100
0
0
0
100
100
100
100
100
0
0|

-I

100

N400


AUX
THERMAL
USED
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
B
Ll
E


SOLAR
ENERGY
USED
MILLION
BTU

0.184
0.000
0.000
0.004
0.297
0.418
0.541
0.359
0.000
0.000
0 520
0.315
0.216
0.261
0.295
0.000
0.000
0.392
0 222
0 117
0.000
0.000
0.000
0.000
0.548
0.356
0.209
00158
0.000
0.000

5. 593

0.180

0400


OPER
ENERGY

MILLION
BTU

0.037
0.000
0.000
0.003
0. 045
0.067
0.072
0.051
0.000
0.000
0.072
0.040
0.026
0.034
0.041
0.000
0.000
0.049
0.036
0.014
0.000
0.000
0.000
0.000
0 .072
0.043
0. 029
0.025
0.000
0.000

0.781
0.025

0403


AUX
ELECT
FUEL
MILLION
BTU

N
0
T

A
P
P
L
I
C


N.A.
N.A.


AUX
FOSSIL
FUEL
MILLION
BTU
N
0
TI

A
P
P
LI
I
C
A
B
L
E'
















N.A.
N.A.

0410


EL ECT
ENERGY
SAVINGS
MILLION
BTU

0.068
0.000
0.000
0.001
0.113
0 159
0.205
0.137
0.000
0.000
0.203
0.119
0.082
0.099
0.111
0.000
0.000
0 150
0.083
0.045
0.0001
0.000
0.000
0.000
0.213
0 138
00 79
0.059
0.000
0.000

2.1321

0.069

0415


FOSSIL
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P1
P
L
I
C
A
BI
L
El


N.A.

N.A.

0417


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


N.A.,

N. A.


BLDGI
TEMPI

DEG.
F

75
711
73
73
671
67
67
671
65
60
661
69
71
69
68
681
67
70'
70!
71
72
73
71
641
66
67
691
71
731
S73

---I
69

N406


AMB
TEMPI

DEG.
F

72
711
71
71
601
59
60
621
65
56
59:
66
70
63
65
67
67
69
70o
71
71
69
70
621
57
64
69
70
73
73


66

NI 13


0401










SOLAR HeATING AND COOLING DEMCPSTRATIC1 PROGRAM

MONTHLY c-ULPORT
SPACE COOING SUBSYSTEM


SITE: REEDY CREEK
fREPI-'T PERPIrO: MARCH,1979


SPACE
COnLI "J,

MILLION
BTU


DAY




1

4

6
7



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG

NBS


SOLAR
IFR. OF
LOAD
PCT


100
0
0
59
100
1001
100
100
0
0
100
o100
100
100
100
0
0
1 00
100
100
100(
100
0
0



100
1001
0

-I
981

N500'


SOLAR
ENERGY
USED


BTU


*
0.000
0.000
0.000
0.000
0.000
C.000
0.000
0.000
1.793
0.000
C0. 000
0.000
1.227
0.000
1.066
0.000
0.000
1 668
0.000
1 942
0.000
0.000
0. 000
1.499
0.000
1.571
1.011
0.000
1 455
0.000

13.674


OPER
ENERGY

MILL ION
BTU


0. 193
000004
0.000
0.083
0.121
0.090
0.083
0.092
0.171
0.000
0.039
0.127
0.270
0.084
0.247
0.000
0.000
0.313
0.050
0.310
0.066
0.075
0.000
0 195
0.012
0 291
0.242
0.040
0.319
0.000

3.630


0.273
0.000
0.000
0.261
0.015
0.162
0.122
0.188
0.000
0.000
0. 168
0.532]
0.553
0.368
0.462
0.000!
0.000
0.522
0.228
0.575
0.301
0.234
0.000
0.000
0.013
0.000
0.000
0.103
0.894
0.000

6.173!

0.199

Q502


AUX
THERMAL
USED
MILLION
8TU


0.0 )C
0.000
0.000
0.106
0.000
0.300
00000
0.000
0.000
0.000
0.000
0.0000
0.0000
0.000
0.000
0.0000
0.000
So .ooo






0.0000
0.000
0.000
0.000
0.000
0.000
0.00
0.000
0.000

0.000

0.110

0o.00oo

0501
oQ.ooo


AUX
ELECT
FUEL
M ILL ICN
BTU


0.000
0.000
0.000
0.042
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


0.044
-.OOI


----_----I
AUX
FOSSIL
FUEL
MILL I JN
BTU

N
0
T

A
P
P
L
I
C
A
B
L
E


N.A.

N.A.

0508


ELECT
E -GY
SAVINGS
MILL ION
BTU


0.070
0.000
0.000
0.046
-0.025
0.047
0.031
0.058
-0. 171
0.0001
0.060
0 189
0 054
0.131
0.031
0.000
0.000
-0 025
0.072
-0.001
0.0951
0.073
0.0001
-0.195
-0.006
-0.291
-0.242
0.0171
0 161
0.000

0.186

0.006

0512


FOSSIL
ENERGY
SAV INGS
MILLION
BTU

N

T

A
P
P
L
I
C
A

L
E

















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

0514


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


SOLAR/2018-79/03


0.441 0.117

0500 0503


BLOG
DRY
BULB
TEMP
F


75
71
73
73
67
67
67
67
65
60
66|
69
71
69
681
68
67
701
70
71
72
73
71
64
661
67
69
71
73
73
--

691

N4061


AMB


DEG
F


72
71
71
71
60
59
60
62
65
56
59
66
70
63
65,
67
67
691
70
71
71
69
70!
62
57!
641
69
70
73
73



661

N1 13







SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SITE: REEDY CREEK
REPORT PERIOD: MARCH,1979


DAY TOTAL DIFFUSE AMBIENT
OF INSOLATION INSOLATION TEMPERATURE
MONTH H
BTU/SQ.FT BTU/SQ.FT DEG F

1 *
2 1365 757 72
3 1201 651 71
4 929 632 71
5 872 575 71
6 124 102 60
7 1775 364 59
8 1018 546 60
9 1804 280 62
10 1827 84 65
11 867 560 56
12 1804 216 59
13 1544 308 66
14 1526 388 70
15 1957 92 63
16 1449 499 65
17 1147 437 67
18 1791 395 67
19 1869 146 69
20 1791 229 70
21 1867 129 71
22 1402 641 71
23 301 239 69
24 1854 325 70
25 1735 502 62
26 2048 318 57
27 2036 106 64
28 1965 229 69
29 1608 436 70
30 1860 337 73
31 1711 543 73

SUM 46545 11434
-- -- - -- ---- -
AVG 1501 369 66

NBS ID 0001 N113


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


SOLAR/2018-79/03


DAYTIME
AMBIENT
TEMP
DEG F

-*
80
80
81
78
58
69
68
73
77
59
69
78
81
71
75
74
78
80
82
84
82
71
76
70
67
76
80
79
83
82



75


-----------
RELATIVE
HUMIDITY

PERCENT

N
0
T

A
P
P
L
I
C
A
B
L
E

















N-A


WIND
DIRECTION

DEGREES

N
0
T

A
P
P
L
I
C
A
B
L
E









-~I








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

N115


WIND
SPEED

M.P.H.

N
0
T

A
P
P
L
I
C
A
B
L
E
















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


N.A.

N114










SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY FEPORT
THERMODYNAMIC CONVERSION EQUIPMENT


SOLAR/2018-79/03


SITE: REEDY CREEK
REPORT PERIOD: MARCH.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
31

SUM

AVG


EQUIPMENT
LOAD

MILLI CN
BTU

*
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
1 062
0. 000
0.000
0.000
0.676
0.000
0.624
0.000
0.000
0.925
0.000
I a 082
0.000
0.000
0.000
0 832
0.000
0.753
0.412
0. 000
0.803
0.000

7,407

0.239


THERMAL
ENERGY
INPUT
MILLION
BTU

*
0:000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
1 793
0.000
0.000
0.000
1. 227
0.000
1.066
0.000
0.000
1,668
0.000
1.942
0.000
0.000
0.000
1 .499
0.000
1.571
1.011
0.000
1.455
0.000

13.674

0.441


OPERATING
ENERGY

MILLION
BTU
*
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.171
0.000
0.000
0.000
0.138
0.000
0.123
0.000
0.000
0.213
0.000
0.210
0.000
0.000
0.000
0.195
0.000
0.276
0.224
0.000
06167
0.000

1.776

0.057


ENERGY
REJECTED

MILLION
BTU
*
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
2.989
0.000
0.000
0.000
2.011
0.000
1 .773
0.000
0.000
2.704
0.000
3.131
0.000
0.000
0.000
2.398
0.000
2.289
1 .381
0. 000
2.348
0.000


21.724

0.701
--- -


COEFFICIENT
OF
PERFORMANCE
(SEE NOTE)

-E
0.000
0.000
0. 000
0.000
0,000
0.000
0.000
0. 000
0.592
0.000
0.000
0.000
0.551
0.000
0.585
0.000
0.000
0.555
0.000
0.557
0.000
0.000
0.000
0.555
0.000
0. 479
0.407
0.000
0.552
0.000


0.542

0.017


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











SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
AUXILIARY STORAGE PERFORMANCE


SOLAR/201 8-79/03


SITE: REEDY CREEK
REPORT PERIOD: MARCH,1979


OF
MONTH


1
2
3
4
5
6
7
8
9
10
11 1
12
13
14
15
16
17
18 |
19
20
21
22
23
24
25
26
27
28
29
30
31

SUM

AVG


ENERGY
TO
STORAGE
MILLION
BTU
*
0.273
0.000
0.000
0.155
0.011
0. 162
0.114
0.188
0.000
0.000
0. 168
0.532
0.552
0 368
0.428
0.000
0.000
0 522
0.228
0.575
0.301
0.234
0.000
0.000
0.013
0.000
0.000
0.103
0 894
0.000

6.015

0.194


EN ER GY
FRCM
STORAGE
MILLION
BTU

*
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
1.062
0.000
0.000
0.000
0.676
0. 000
0.624
0.000
0.000
0.925
0.000
1.082
0.000
0.000
0.0 00
0.832
0. 000
0.753
0.412
0.000
0.803
0.000

7.407

0 .239


STORAGE
AVERAGE
TEMP
DEG F


I----------
INCREASE
IN STORED
ENERGY
MILLION
BTU
*
0.125
0.007
0.000
0.019
-0.190
S0089
0 026
0 108
-1.282
-0.015
-0.042
0.430
-0.280
0.205
-0.366
0.037
0.026
-0.691
0.542
-0. 598
0.640
0.269
0.078
-0.904
0.314
-0.767
0 071
0.745
-0.019
0.041

-1 .429

-0.046


STORAGE
EFFICIENCY



*
1.000
1,000
1 000
1 .000
I 000
I .000
10000 1
1 000
1.000
1 207
1.000
1.000
1.000
1 231
1.000
1.273
1.000
1 000
1.312
1 000
1 085
1.000
1.000
1.000
I 087
1 000
1.019
-0.173
1.000
1.137
1.000

.005
1*005


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


*
72
72
72
73
72
71
71
72
67
57
57
59
62
60
60
57
57
55
52
54
52
58
60
56
51
51
46
50
55
54


60












UNIVERSITY OF FLORIDA
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3 1262 09052 6988




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