Monthly performance report

MISSING IMAGE

Material Information

Title:
Monthly performance report Lutz-Sotire
Added title page title:
Lutz-Sotire
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 -- Connecticut -- Stamford   ( lcsh )
Solar heating   ( lcsh )
Heat pumps   ( lcsh )
Genre:
federal government publication   ( marcgt )
non-fiction   ( marcgt )

Notes

General Note:
National solar data program.
General Note:
Monthly Catalog Number: gp 80010091
General Note:
National solar heating and cooling demonstration program.
General Note:
"SOLAR/2027-79/02" ; "SOLAR/2027-79/03" ; "SOLAR/2027-79/04."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027069747
oclc - 05908089
System ID:
AA00013829:00002


This item is only available as the following downloads:


Full Text
I. l SOLA'D / 2o .-7


SOLAR/2027-79/03

Monthly
Performance
Report




LUTZ-SOTIRE
MARCH 1979


S 140 ii


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


U.


S.


79 /63


/























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
LUTZ-SOTIRE
MARCH 1979

I. SYSTEM DESCRIPTION

The Lutz-Sotire solar energy system serves a three story, 25,000 square
foot office building located in Stamford, Connecticut. This retrofit
system supplies energy to a distributed heat pump system consisting of
64 water-to-air heat pump units connected in a closed hydronic loop.
The solar collector array contains 2,561 square feet of collector area
consisting of 138 flat-plate collectors augmented by 2,927 square feet
of reflectors. The collectors are tilted at 55 degrees, the reflectors
at 10 degrees from the horizontal. A 50 percent ethylene glycol solution
is used as the energy collection and transport fluid. Solar energy is stored
in water contained in a 6,000-gallon storage tank partially buried beneath
the parking lot. From the storage tank, solar heated water is distributed
to the building's heat pump loop. The existing electrical hot water boiler
provides auxiliary energy.

Because the solar energy system supplies its energy to the heat pump
hydronic loop, the terminology normally used in the National Solar Heating
and Cooling Demonstration must be modified. Heating load normally applies
to energy added to the air of the conditioned space; however, in this
system it will be understood to refer to the energy demand on the equip-
ment supplying energy to the heat pump hydronic loop. This energy is
the sum of the solar and auxiliary energy extracted from those subsystem
reservoirs and whatever energy may be added to the hydronic loop by
individual heat pumps extracting heat from the conditioned space and
placing it in the hydronic loop (cooling mode).

The Lutz-Sotire solar energy system, shown schematically in Figure 1, has
the following modes of operation:



















S1001 COLLECTOR PLANE TOTAL ISOLATION
* 1002 HORIZONTAL PLANE DlfUSDE INSOLATION
0 7001 OUTOOOf TEMPERATURE
V TW2 INDOOR TEMPE(IATUAE
* EPlOB TOTAL BUILDING POWER


TYPICAL PACKAGED UNIT HEAT PUMP
WITH AUXILIARY HEAT.EXCHANGER
LOBBY 4 UNJTS
*EP604 TOTAL POWER
FIRST FLOOR 30 UNITS
*EP605 TOTAL POWER
SECOND FLOOR 30 UNITS
eEP606 TOTAL POWER


Figure 1. L UTZ-SOTIRE SOLAR ENERGY SYSTEM SCHEMA TIC


RETURN
AIR -


CENTRAL
CORE
AIR
CONDITIONING
UNIT


REVISED 17/711


1








Mode 1 Collector-to-Storage: This mode is initiated whenever the
collector plate temperature is approximately 200F above the solar tank
temperature. This mode is exited when this temperature differential
drops below 50F.


Mode 2 Storage-to-Space Heating: This mode is initiated whenever the
supply temperature of the closed cycle hydronic loop falls below 80F
and the temperature of the solar storage tank is above 750F. Solar
heated water is fed into the hydronic loop until its temperature rises
to 800F or until the temperature of the solar storage tank falls below 750F.

Mode 3 Auxiliary Heating: This mode is activated whenever the supply
temperature of the closed cycle hydronic loop falls below 75F. Water
heated by the existing electrical boilers will be fed into the hydronic
loop until the supply temperature rises td 750F.

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
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 Lutz-Sotire solar energy system was operational throughout the month
of March. It supplied 32.6 million Btu of energy to the hydronic loop
serving the several heat pumps whose total demand was 31.0 million Btu.
This represented 86 percent of the total energy supplied to the heat
pump array and an estimated 57 percent of the space heating load.








Direct measurement of both the solar and auxiliary energy contributions to the
hydronic loop are precluded by instrumentation problems. Estimations
of these parameters based upon other measured data have been substituted
for the missing measured data which has been nulled from the individual
subsystem reports.

B. Weather

The average ambient temperature for the month was 420F. This is compared
with 410F for a long-term average taken at the Bridgeport, Connecticut,
weather station 30 miles to the north. The average insolation in the
plane of the collector array was 1,235 Btu/ft2-day as compared with 1,251
Btu/ft2-day long-term average. This long-term prediction was obtained
from the New York weather station 30 miles to the south.

C. System Thermal Performance

Collector Of the 98.1 million Btu incident upon the collector array
during the month, 36.0 million Btu were collected. This represents a
collector array efficiency of 37 percent. Operating energy of 2.6 mil-
lion Btu (767 kwh) was required to collect and store this energy.


Storage From the 36.0 million Btu collected, 33.0 million Btu were
delivered to storage. Diminished usage of the system in the heating
mode allowed the average storage tank temperature to increase to 1140F.
Because of an instrumentation incompatibility, energy removed from sto-
rage as normally tabulated on the Storage Performance Report has been
nulled and a better estimate is obtained assuming the uncontrolled losses
are 10 percent of the input energy and using the equation:


STEI = STEO + STECH + STLOSS








Solving for STEO


STEO = STEI STECH STLOSS
= 33.0 (-2.9) 3.3
= 32.6 million Btu



Space Heating Space heating at the Lutz-Sotire site is accomplished by
64 individual heat pumps which use as their source a hydronic loop whose
temperature is maintained by solar and auxiliary sources. There is no
direct contribution to the space heating load by solar energy. A tabu-
lation of the energy removed from the hydronic loop by the heat pumps
has been listed under the heading Space Heating Load on the Space Heat-
ing Subsystem report. This demand has resulted in a measured 31.0 million
Btu being removed from the hydronic loop. A further discussion of this
quantity is contained in Section D, Observations.

D. Observations

Using a technique developed in the December (Narrative) report on this
site, a comparison figure for the hydronic loop demand as measured may
be calculated. It should be noted that the total energy extracted from
the hydronic loop should be approximately equal to the total energy delivered
to storage plus the auxiliary electrical energy demand, for there are known
uncontrolled losses to the environment. The energy removed from storage
has already been calculated as 32.6 million Btu. It will be assumed that
all of this energy was inserted into the hydronic loop.

Because the temperature of the auxiliary storage tank has in past months been
maintained at a higher temperature than the solar tank, the losses have been
assumed to be 20 percent of the total energy supplied. All of the remaining
energy consumed by the electric boiler will be assumed to nave been supplied

to the hydronic loop. Despite evidence that the auxiliary tank temperature
may have been decreased, the 20 percent transport and storage loss will
continue to be assumed. As may be seen on the Space Heating Subsystem
report, the total auxiliary energy consumed was 6.9 million Btu. It






will be assumed that 80 percent of this energy or 5.5 million Btu was
actually inserted into the hydronic loop. It may be seen that the sum
of the solar and auxiliary energy added to the hydronic loop is 38.1
million Btu. This figure is in reasonably good agreement with the
measured load of 31.0 million Btu. During this month, in contrast to
months previous, the estimated load has exceeded the measured load.
It may be noted from the Storage Performance report that following
operation on March 17, the temperature of the storage average temper-
ature began to increase reaching a high of 180F on March 23. The
average temperature for the last 14 days of the month was 1360F com-
pared with a total monthly average of 1140F. The 10 percent loss rate
may not be applicable to the tank at this higher temperature.

It is believed that the total energy input to the hydronic loop is
more nearly approximated by the sum of the auxiliary and solar energy
contributions (modified for losses) than is the direct measurement at
the load. Under this assumption, the solar fraction of the load can
be calculated as

SFR = solar energy
solar energy + auxiliary energy + heat pump electrical energy

= 32.6
32.6 + 5.5 + 19.3 =57 percent

E. Energy Savings

Based on the assumptions and calculation shown above, a total of 30.0
million Btu of energy savings was realized. This value assumes that
had there been no solar energy system, all energy supplied to the hydro-
nic loop would have come from the auxiliary source.








III. ACTION STATUS


A thorough reevaluation of the instrumentation subsystem at the site is in
progress. Under consideration are:

(1) Increasing the existing voltage to all flowmeters and electrically
converting them to totalizing meters, thus reducing threshold
sensitivity to 5-7 gpm.

(2) Investigating and recalibrating where necessary all temperature
sensors involved in the heat pump hydronic loop energy balance
calculations.









SCLAR EATING ANC COOLING CENCKSTRATICN PROGRAM
MCNTI- YRE CFT
SITE SLMMtPY


SOLAR/2027-79/03


SITE: LUTZ-SOTIRE STAMFORD, CT.
REPORT PERIOD: MARCH,197S


SITE/SYSTEM DESCRIPTION:
LUTZ-SOTIRE IS A 3 STCRY OFFICE BUILDING kIFT 25,000 SQUARE FEET
OF HEATED SPACE. THE SOLAR ENERGY SYSTEM IS A RETROFIT TC A DISTRI-
BUTED HEAT PUMP SYSTEM CONSISTING CF IC AI1ER-TC-AIR HEAT FUMP UNITS
CONNECTED IN A CLCSEC CYCLE F-CRCNIC LCCP. THE SCLAR SYSTEM CONSIST
OF 138 FLAT PLATE COLLECTCPS ALGMENIEC BY REFLECTCRS. A 5C% ETHYLENE
GLYCOL SOLUTION CIRCULATES TFPCUGH THE CCLLECTCRS TO A LIQUID-TO-
LIQUID HEAT EXCHANGER. WATER FRCM THE 6,CCC GALLON STORAGE TANK
CIRCULATES THRCUGF TFE OTHER SIDE. FRCM THE STORAGE TANK, SOLAR HEATED
WATER IS ALSC CISTRIBLTED TC THE BUILDING'S FEAT PUMP LOOP.
GENERAL SITE DATA:
INCIDENT SOLAR ENERGY 98.06


COLLECTED SOLAR ENERGY
AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING TEMPERATURE
ECSS SCLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM CPEPATING ENERGY
TOTAL ENERGY CCNSLFEC


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


HIT WATER
N.A.
N.A.
N.A.
NA.
N.A.
N.A.
N.A.
N .A.
N.A.


EATING
3C.955

2.181
6.8e3
N.A.
2 .

2 1 E.


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


4 MILLION BTU


38291 BTU/SQ.FT.
36.041 MILLION BTU
14073 BTU/SQ.FT.
42 DEGREES F
73 DEGREES F
3
2.618 MILLION BTU
4.799 MILLION BTU
47.733 MILLION BTL

SYSTEM TOTAL
8.216 MILLION BTU
@ PERCENT
2 MILLION BTU
4.799 MILLION BTU
0.185 MILLION BTU
6.893 MILLION BTU
N.A. MILLION BTU
@ MILLION BTU
N.A. MILLION BTU


SYSTEM PERFORMANCE FACTCR:


C.211


* DENOTES UNAVAILABLE CATA
@ DENOTES NULL DATA
N.A. DENOTES NCT APPLICABLE CATA
REFERENCE: USER'S GUICE TC THE MONTHLY PERFORMANCE REPORT
OF THE NATIONAL SCLAR DATA PRCGRAP,FEBRUARY 28,197E,
SCLAR/CCCA-78/18








SCLAR HEATING AKC CYCLING CEECNSTRATICN PROGRAM


PCNTFLY REFCPT
SITE SUMMARY
SITE: LUTZ-SOTIRE STAMFCRD, CT. SOLAR/2027-79/03
REPORT PERIOD: MARCH,1979

SITE/SYSTEM DESCRIPTION:
LUTZ-SOTIRE IS A 2 STCRY OFFICE BUILDING IT 25,000CO SQUARE FEET
OF HEATED SPACE, THE SCLAR ENERGY SYSTEM IS A RETROFIT TC A DISTRI-
BUTED HEAT PLMP SYSTEM CONSISTING OF 7C ATER-TC-AIR HEAT FUMP UNITS
CONNECTED IN A CLCSEC CYCLE FYCRGNIC LCCP. THE SCLAR SYSTEM CONSIST
OF 138 FLAT PLATE CCLLECTCRS AUGMENTEC BY REFLECTORS. A 5C% ETHYLENE
GLYCOL SOLUTION CIRCULATES TFRCLGH THE CCLLECTCRS TO A LIQUID-TO-
LIQUID HEAT EXChANCER. WATER FROM ThE 6,CCC GALLON STORAGE TANK
CIRCULATES THROUGH THE CTFER SIDE. FRCM THE STORAGE TANK SOLAR HEATED
WATER IS ALSC DISTRIBUTED TC THE BUILDING'S HEAT PUMP LOOP.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY
AVERAGE AMBIENT TEMPERATURE
AVERAGE BUILDING IEMFEFATURE
ECSS SOLAR CONVERSION EFFICIENCY
ECSS OPERATING ENERGY
TOTAL SYSTEM OPERATING ENERGY
TOTAL ENERGY CCNSLMEC


103.457
434835
38.024
159815
5
23
N.A.
2.762
5.063
50.358


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


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


hCT WATER
N .A.
N .A.
N.A.
N .A.
N.A.
NA.
N .A.
N .A.
N .A.


HEATING
32.65E
a
2.3C1
a
7.272

N.A.


COCLING
N.A.
N.A.
N.A.
N.A,
N.A.
N.A.
N.A,
N.A.
N.A.


SYSTEM TOTAL
8.668 GIGA JOULES
a PERCENT
2 GIGA JOULES
5.063 GIGA JOULES
0.195 GIGA JOULES
7.272 GIGA JOULES
N.A. GIGA JOULES
2 GIGA JOULES
N.A. GIGA JOULES


SYSTEM PERFORMANCE FtCTCP:


C.211


4 DENOTES UNAVAILABLE DATA
a DENOTES NULL CATA
N.A. DENOTES NOT APPLICABLE CATA
REFERENCE: USER'S GUICE TC THE MChTHLY PERFCFMANCE REPORT
OF THE NAIICNAL SCLAR CATA FRCGRAM,FEBRUARY 28,197E,
SCLAR/CCC4-7E/18







SCLAR EATING AND CCCLING CEMCNSTRATION PROGRAM
MONTHLY PEFCRT
ENERGY COLLECTION ANC STCPAGE SUBSYSTEM (ECSS)
SITE: LUTZ-SOTIRE STAMFCRD, CT.
REPORT PERIOD: MARCH,1S7S


SOLAR/2027-79/03


CAY
CF
MONTH


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


INCIDENT
SOLAR
ENERGY
MILLION
BTU
2.835
0.335
1.925
0.259
0.492
0.034
0.506
4.186
4.851
0.272
1.358 8
5.242
4.688
0.808
5.859
5.088
1.038
5.783
5.646
5.393
5.166
5,759
5.450
1.268
4.299
3.024
5.652
5.444
1.425
1.260
2.730
98.064
3.163
Q001


AMEIENT
TEVP

C EC- F
4C
38
37
4c
C I
il
41
41
42
?3
2c
2i
47
25
27
35
26
40
46
54
14
52
51

36
45
54
63


42
N113


ENERGY
IC
LCADS
MILLION
E7L
C .CCO
C .CCO
C.495
C 175
c .000
C .CCO
C.CCO
C C.058
C .CCO
C.c23
C .342
C .492
1 .C24
C .724
C.726
1.118
C 105
0.546
C .CCO
C.CCO
C.CCO
C.CCO
C .CCO
C CCO
C .CCO
0.132
C C73
C .28

8.C31
C,259


AU>
TIERVAL
TC ECSS
VILLICN
ETL

C
T

F
F
L
I
C

L
E














N.A.
N.A.


ECSS
OPERATING
ENERGY
MILLION
BTU
0.059
0.000
0.074
C.000
0.004
C.000
C,OOC
C.000
0.173
0.141
C.000
0.03E
0.172
C.160
0.022
0.169
0.148
0.077
0.176
C.148
0.132
0.137
0.133
0.099
0.001
0.085
0.036
0.125
C.152
0.004
C.039
0.115
/------- --
2.618
C.084
C102
I---ClO2---- I


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














N.A.
N. A.


* DENOTES UNAVAILABLE CATA.
a DENOTES NULL DATA.
N.A. DENOTES NOT APPLICAELE EATA.


ECSS SOLAR
CCNVERSICN
EFFICIENCY




a
2
a
a
a
a
a



a)
a
a
a
a
a
a
a
a
a
a

a
a
a
a






---






SCLAR HEATING ANC CCCLING CEMCNSTRATION PROGRAM
MCNTHLY PEFCRT
CCLLECTER ARRAY PEPFCPRNANCE


SITE: LLTZ-SCTIRE STAPFCRD, CT.
REPORT PERICC: NARCH,1979


SOLAR/2027-79/03


DAY
CF
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
NBSID


INCIDENT
SCLAR
ENERGY
MILLICh
eTU
2. 35
C.335
1. 25
0.259
C.492
C.C34
C .C6
4.186
4.851
0.272
1,348
5.242
4.688
C.SC
S.859
5.088
1 .028
5.783
5.646
5 166
5.759
5.450
1.268
4.. 299
3.024
5.652
5.444
1.425
1.26C
2.73C
98.C64
3.163
C001


OPERATIONAL
INCIDENT
ENERGY
FILLICN
BTU
1.574
C .0OCC
1.650
C .0OC
0.018
C .000
C.C00
3.929
4 151
C .000
C,747
4,765
4.330
C 421
.1395
---.4------






4.339
C.797
5.213
4.763
4.232
4.594
2.824
C.062
2.874
1.460
4,360
4.632
S.315
C .633
2.451
15.544
2.437


CCLLECTEC
ENERGY
FILLICN
ETL
C.ES4
C.CCC
C.963
C.CCC
C .C02
C.CCO
C .CC
1 .999
2.C22
C .CCC
C .64
S2. 51
2 .362
2.;62
C.I~29
2, 73
2 .486
C.142
2.766
2,479
1.812
1 .892
1.992
1.416
C .755
C.591
1.935
1 .65
C .364
C.337
1.391
36.C41
1.163
I-CC


COLLECTOR
ARRAY
EFFICIENCY


0.315
0.000
0.501
0.000
0,004
0.000
0.000
0.477


DAYTIME
AMBIENT
TEMP
DEG F

50
40
42
38
52
50
44
47
50
45
33
34
*
26
32
45
49
53
60
70
68
59
58
45
43
46
49
62
57


48


0.368
N100


* DENOTES UNAVAILABLE CATA.
@ DENOTES NLLL CATA.
N.A. DENOTES NCT APPLICABLE DATA.


0,417
0.000
0.270
0.449
. 504
0.234
0. 439
0.489
0.137
0.478
0.439
0.336
0.366
0.346
0.260
0.000
0.176
0. 196
0.342
0.361
0.256
0.267
0. 509







SOLAR HEATING AhC CCCLING CENCNSTRATICN PROGRAM
SMON---T-MNHLY PEPCRT
STORAGE PERFCPMANCE


SITE: LUTZ-SCTIRE STAPFCRD, CT.
REPORT PERICC: VARCH,197I


SOLAR/2027-79/03


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
NBS ID


ENERGY
TC
STCRAGE
MILLION
eTU
0.781
C.CCC
c.cc0
C.9OC5
-C.CC5
0.000
1.8 25
1.949
CCCCc
0.372
2.217
2.177
C.112
2.489
2.311
0,251
2.571
2 2C7
1. 653
1.568
1.597
1.456
0.776
C 364
1.63C
1.629
C.426
C,336
1 293
33.CCO
1.C65
C2C 0


EhERGY
FRCM
STORAGE
MILLION
eTU




Sa
a
a



2
a
a
a
a'
a
a'













2 -
a
201
a
s
a
a
a
a









8
02 .


CHANGE
II STCREC
ENEPGY
MILLION
ETL
-C .698
-1.642
-C 4C3
-C .238
-C.C48
-C.CC6
-C.C32
1 .64
C. 88e
-1.666
-1.171
1 112
C. 351
-,.7C05
C.510
C C46
-1 .45r
2.267
C.9C7
C .6C1
C. 555
C. 116
C .C92
-1.567
C- .213
-C.966
C.119
C.212
-1.804
-1.137
C.C25
-2.9CO
-C.C,94
C202


STORAGE
AVERAGE
TEMP
DEG F

125
105
85
78
76,
76
76
95
120
117
86
92
98
99
98
95
88
102
124
142
155
171
180
168
151
146
133
135
118
95
90


114


STORAGE
EFFICIENCY



@
@
@
@
@
@
@
@
@
@
@
8



a
a
a
a
a
8
@




@





NI08


*.EN. E Uh.PAVAILABLE CATA.
a lfrr.P L ItL A CLtt






SCLAR hEATING ANC CCOLING CEMCNSTRATICN PROGRAM
VC'N ICTHLY PEFCIrT
SPACE EATING SUBSYSTEM


SOLAR/2027-79/03


SITE: LUTZ-SOTIRE STAMFCPD, CT.
REPORT PERIOD: MARCH,1979


DAY
CF
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
HEATING
LOAD
MILLION
BTU
0.658
0.645
0.665
1.071
0.515
0.113
0.335
0.438
0.536
0.441
1.088
2.210
1.402
1.140
2.119
2.637
2.091
2.014
1.805
C.922
0.551
0.359
0.215
0.534
0.422
0.748
1.426
1.596
1.106
0.467
0.689
30.955
0.999
Q402


SOLAR
FR.OF
LOAD
PCT

@a
a
a
a
a
a
a
a
a,
ai
@a

a

a
a
a
a
a
a
a
a
a
a
a
a
a
a







N400


Q400


SOLAR
ENERGY
USED
MILLION
BTU
a@
-I




a
a.
a.
a.
3
a
a
a
a
a




a




a


CFER
ENERGY
B-r
MILLION
BTU
C.039
C.C47
C,080
0.108
0.061
C.043
C.065
C.044
C.C26
C.047
0.C85
C. 119
0.085
C.084
C.113
0.124
C. 125
C.125
C.073
C.C65
0.046
C.C42
C.036
C.065
C.072
C.073
0.073
C.071
C .060
C.C43
C .03
2.181
0.070
C403


C-401


AUX
THERMAL
USED
MILLION
ETL
a@


a
a

a
a
a
a
a
a
a
32





a
a
a



a
a.






a
a
a
2
a.

a.
3
a
a
8
8 *^
a
a
a


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


AUX
ELECT
FUEL -
1ILLICN
8TL
0.COC
C. CC
0.644
C.963
C .452
S.151
C .2C4
C.146
C.CCC
C.CCC
S.794
1.C5C
C.1C4
C.CCCC
C.892
0.158
C .E46
C .CC
C.CCC
C.CCC
0.CCC
C .CCC
C.CCC
C.CCC
C .CCC
C .CCC

C.CCC
C CCC
C .CCC
C .CCC

6.893
0.222


EL ECT
ENERGY
SAV INGS
MILLION
B1U
a

@
@







a
@a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
@
@


Q415


FOSSIL
ENERGY
SAVINGS
MILLION
BTU
Ni
C
T
A
P
P
L
I1
C
Ai
B,
L
El


N.A.
N.A.
Q417


* DENOTES UNAVAILABLE DATA.
a-DENOTES NULL DATA.
N.A. DENOTES NOT APPLICABLE CATA.


N.A.
N.A.
Q410


BLOG
TEMP
DEG.
F
75-
74
75
69
72
74
73
74
72
72
68
68
71
74
73
72
72
72
71
73
76
75
76
76
73
72
72
72
73
75
75


73
N406


AMB
TEMP
DEG.
F
40
39
38
37
.49
50
43
41
41
42
29
37
47
25
27
35-
36
40
46
49
54
51
52
51
40
36
36
451
54
53


42
N113






SCLAR EEAITING AhC CCCLING CEMCNSTRATION PROGRAM
MC-NTHLY REPORT
-ENVIPCNMENTAL SUMMARY
SSITE: LUTZ-SOTIRE STAMfCPO, CT..
REPORT PERIOD: MAPCF,1,97c


SOLAR/2027-79/03--


DAY
... O F .....
MONTH-


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


TOTAL
INSOtATICN
BTU/SQ.FT
110-7
131
752
10
192-
13
198
1634
1894
106
526
2047
1830
315
2288
1987
405
2258
2205
2106
2017
2249
2128
495
1678
1181
2207
2126
556
492
1066
38291
1235
QO 01


CIFFLSE
I SOl -T ION
ETU/SQ.FT
690
7-
574
72
139
5
148
10C02
821
72
373
'41
628
232
1206
1C48
335
795
774
887
771
718
704
378
735
8C5
767
730
323
303
535
17607
568


N113


AKBIEhT
TEMPERATURE
DEG F
4C -
38
37
4c
5C
43
41
41
42
33
29
37
47
25
27
35
36
4C
46
49
54
51
52
51
4C
36
36
45
54
53


RELATIVE
HUMIDITY
PERCErT

C
1

I
F

F
L
E
E
L
E


CAYT IME
APEIENT
TEMP
CEG F
50-
40
42
38
52
50
44
47
50
45
33
34

26
32
*
45
49
53
S60
70
68
58
45
43
46
49
62
57


48


WIND
DIRECTION
DEGREES
N
0
T
A
P
P
L
I
C
A
B
L
E


N.A.
NI 15


WIND
. SPEED
M.P.H.
N
0
T

P
P
L
I-
C
A
B
L
E















N.A.
N114


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


N.A.














UNIVERSITY OF FLORIDA
IllnI 11i3 I 2 lillB 2I T1 8Dllll l BI III l1
3 1262 09052 5238




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