Monthly performance report

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Material Information

Title:
Monthly performance report South Dakota School of Mines
Added title page title:
South Dakota School of Mines
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 -- South Dakota -- Keystone   ( 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 80010090
General Note:
National solar heating and cooling demonstration program.
General Note:
"SOLAR/2019-79/04" ; "SOLAR/2019-79/05" ; "SOLAR/2019-79/06."

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 027069722
oclc - 05957475
System ID:
AA00013800:00002


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E 1). 22 9 .OLA k/ ;1' -


ti i'


SOLAR/2019-79/05

Monthly
Performance
Report





SOUTH DAKOTA SCHOOL OF MINES
MAY 1979


Department of Energy

National Solar Heating and
Cooling Demonstration Program

National Solar Data Program


U.


S.


i


"9 / -








































______________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 II


NOTICE









MONTHLY PERFORMANCE REPORT
SOUTH DAKOTA SCHOOL OF MINES
MAY 1979

I. SYSTEM DESCRIPTION


The South Dakota School of Mines solar energy system is installed in the
visitors' center of the Mount Rushmore National Memorial at Keystone,
South Dakota. The solar energy system is a retrofit to the original heat-
ing and cooling system, and is designed to provide 45 percent of the annual
heating requirements for the entire building and provide 53 percent of the
annual air conditioning requirements for the observation room.

Solar energy collection is performed by 112 double-glazed, flat-plate col-
lectors manufactured by Lennox Industries, Inc., that have a gross area of
2,000 square feet. The collectors are mounted in six arrays on the roof
of the building, and face 19 degrees west of south with a tilt of 46 degrees
from the horizontal. The main system loop contains 150 gallons of 50 per-
cent ethylene glycol and water solution, which is used to transfer energy,
as required, from the collector to the collector-to-storage heat exchanger,
the collector-to-space heating heat exchanger, and absorption chillers.
Thermal storage is provided by 3,000 gallons of water in a steel storage
tank that is insulated with three inches of fiberglass.


Heating demands are met by transferring energy from the collector, or stor-
age, to heating coils in the building multizone air handler. The multizone
fan is energized continuously to circulate building air, and dampers in the
multizone unit are positioned to allow flow across the solar heating coil
when the system is in a solar heating mode. Auxiliary heating is provided
by a two-stage fuel oil furnace.

Thermal energy from the collectors is used to operate three absorption
chillers; chilled water from these chillers is circulated through a cooling
coil in the observation room air handler. Thermal energy from storage is









not used to operate the chillers because of temperature limitations. Auxil-
iary cooling is provided to both the multizone and single-zone air handlers
by vapor compression units.

This system, which is shown schematically in Figure 1, has six modes of
solar operation.

Mode 1 Solar Energy Collection: The solar collection mode is entered
when the collector absorber plate temperature is greater than 1000F. In
this mode, pump P1 is energized and valve V4 is positioned to allow flow
through the collectors. This mode is entered even though there is no
heating or cooling load and storage tank charging criteria have not been
met. This mode continues until the collector plate temperature is less
than 1000F; however, an adjustable time-delay circuit delays pump P1
shutdown to prevent short cycling.

Mode 2 First Stage Heating From Collectors: This mode is entered when
the system is in the collection mode and a demand for heat is determined
by the difference between the conditioned space thermostat setting and the
discharge air temperature in the multizone air handler. In this mode,
valve V7 is positioned to allow flow through the heating coil HX2 located
in the multizone air handler, and valve V5 is positioned to bypass the
absorption chillers. Flow through the heating coil is provided by pump Pl.
If the heating demand cannot be met using solar energy, a fuel-oil furnace
is used in conjunction with, and independent of, solar heating.


Mode 3 First Stage Heating From Storage: This mode is entered when there
is a heating demand, energy is not available from the collectors, and energy
is available from storage because the top tank temperature is greater than
1000F. In this mode, valves V5 and V7 are in the heating positions, and
valve V4 is in the collection bypass position. Valves Vl and V2 are posi-
tioned to allow flow into the bottom and out of the top of the storage tank.
Pump P2 is energized to circulate water between the storage tank and the
water side of the storage heat exchanger HX1, and pump P1 is energized to







































































TYPICAL 3
ABS
CHILLER
UNITS


Figure 1. SOUTH DAKOTA SCHOOL OF MINES SOLAR ENERGY SYSTEM SCHEMATIC









circulate the main system fluid between the glycol/water side of exchanger
HX1 and the liquid side of heating coil HX2 in the air handler. Multizone
air handler and oil furnace operations are the same as described in Mode 2.

Mode 4 Single-Zone Cooling From Collectors; This mode is entered when
sufficient solar energy from the collectors is available, and when a de-
mand for single-zone cooling is determined by the conditioned space thermo-
stat (located in the observation room) and the discharge air temperature of
single-zone air handler.

Since generator inlet temperatures of 180F are required in order to operate
the ARKLA absorption chillers, this mode is not allowed until collector out-
let temperatures reach this level. If temperature requirements are met,
valve V5 is positioned to allow flow through the chillers' generators, pro-
vided that pump P3 is operating to circulate chilled water through the solar
cooling coils. Pump P4 is energized to circulate condensing water through
the cooling tower. The cooling tower fan is controlled by an aquastat to
maintain a sump temperature of 85*F.

Safety cutoffs are also provided to prevent either overheating or excessive
cooling of the chillers. No solar cooling from the storage mode is provided
since maximum storage tank temperature and energy losses prohibit efficient
operation of the chillers. Auxiliary cooling will be provided by vapor com-
pression units (A/C unit) in the single-zone and multizone air handlers.

Mode 5 Storage Tank Charging: This mode is entered when the inlet
temperature on the glycol/water side of the storage heat exchanger is
20F greater than the storage tank bottom temperature. This mode is also
entered in the cooling mode if, in addition to being 200F greater than
the storage temperature, the heat exchanger inlet temperature (glycol/
water side) is greater than 1950F.

In this mode, valves Vl and V2 are positioned to allow flow into the top and
out of the bottom of storage, and pump P2 is energized to circulate water
from storage through the heat exchanger. This mode is stopped if storage
tank temperatures exceed 2050F.








Mode 6 Excess Heat Rejection: This mode is entered when the storage heat
exchanger outlet temperature (T103) exceeds 2050F. In this mode, valve V3
is positioned to allow flow through the heat rejection cooling tower. The
fan in this tower is controlled by an aquastat to maintain a sump temperature
of 1950F.

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 defi-
nitions 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 Mount Rushmore Visitors' Center solar energy system was operational
throughout the month of May 1979. The solar contribution to the space
heating load for May was very small, apparently due to improper adjust-
ments in the control system which resulted in failure to use solar energy
when it was available. Approximately three times the amount of solar
energy was rejected in May (2.81 million Btu), compared with April (0.98
million Btu), and the average storage tank temperature was 100F above
the value for April, indicating the availability of energy which was not
utilized. Energy was supplied from the solar energy system to the heating
load on only 16 days during the month.

B. Weather

During May the measured outside ambient temperature was 510F, which is
4F below the long-term average for the Rapid City, South Dakota area.
The measured average insolation in the plane of the collector was 1,410
Btu/ft2.day, 17 percent below the long-term average of 1,703 Btu/ft2-day.








Long-term environmental data are derived from data supplied by Reference
Monthly Environmental Data for Systems in the National Solar Data Network,
Department of Energy Report SOLAR/0019-79/36.


C. System Thermal Performance


Collector During the reporting period, a total of 87.44 million Btu of
incident solar energy was measured in the plane of the collector array.
The system collected 14.67 million Btu or 17 percent of the total avail-
able insolation. During the time the system was operating, a total of
59.42 million Btu was incident on the array. This represents an opera-
tional collector efficiency of 25 percent. A total of 0.45 million Btu
of electrical energy was required to collect solar energy when the system
was operating in the collection or storage modes.


Storage Storage calculations show that 7.59 million Btu were delivered
to storage during the month and 1.69 million Btu were supplied from sto-
rage. Storage losses included 6.29 million Btu from the storage tank
and an additional 0.49 million Btu form the collector loop-to-storage
loop heat exchanger. A net decrease in stored energy of 0.39 million
Btu was observed over the month. Consequently, the monthly storage
efficiency was 17 percent. The average storage tank temperature for
the month was 1710F.


Space Heating Load The space heating load for May was 12.02 million Btu.
Solar energy supplied 0.87 million Btu of this load which represents a
heating solar fraction of seven percent. An average building temperature
of 680F was maintained during May.


Of the 0.87 million Btu of solar energy supplied to the space heating
load, 0.14 million came directly from the collector and the balance of
0.73 million Btu were supplied from storage. Operating energy required
to deliver solar energy to the heating load amounted to 0.32 million Btu
for the month.








D. Observations


Computations, based on the values presented in this report, yield an energy
imbalance of 3.68 million Btu for the month of May, as tabulated below:


Loads and Losses (million Btu)


Solar Energy Collected by Array


Solar energy input to storage
Solar energy direct from
collectors (heating)
Rejected solar energy (heat
purge tower)
Energy loss at heat exchan-
ger (no storage loop flow)


7.590


14.670


- 0.134

- 2.810


- 0.459


Sum of loads and losses 10.993


Imbalance:


-10.993

3.677 Million Btu


These computations assume nominal flow through the collectors and make no
allowance for leakage conditions in the collector loop. Investigation in-
to the probable cause of this imbalance has revealed that valve V4 (collector
bypass valve, Figure 1) has a faulty actuator which prevents complete seat-
ing of the valve. The actuator is scheduled for replacement in late June
1979.


Assuming that 25 percent of nominal collector flow is diverted by the
leaking valve, the apparent imbalance would be eliminated because the
value of collected solar energy would be reduced to 75 percent of its
present value or 11 million Btu. The load and loss terms would be unaf-
fected by the leakage due to the placement of valve V4.


E. Energy Savings


The solar energy system at Mount Rushmore provided a savings of 1.44 mil-
lion Btu of fossil fuel during May. This savings was realized at the cost
of 0.45 million Btu operating energy for the solar energy system.









III. ACTION STATUS


Progress on the actuator replacement on valve V4 will be monitored during
June through periodic contact with the Project Manager. Rework of the
control system for more complete utilization of available solar energy
is scheduled for early June 1979, concurrent with final adjustment of the
air conditioning controls in preparation for the cooling season. Site
data will be closely monitored to assess the effectiveness of the control
adjustments.









SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SITE SUMMARY


SOLAF/2019-79/05


*SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY,1979


SITE/SYSTEM DESCRIPTION:
THE SOUTH DAKOTA SCHOOL OF MINES SOLAR SYSTEM IS DESIGNED TC CARRY AEOUT
50X OF THE HEATING LOAD AND ABOUT 40% OF THE COOLING LOAD. SECOND STAGE HEATING
WILL BE PROVIDED BY A TWO STAGE FUEL OIL BURNER AND SECOND STAGE COOLING WILL
BE PROVIDED BY A REFRIGERATION COMPRESSOR IN THE MULTIZChE UNIT AND A SINGLE
ZONE 10-TON PACKAGE UNIT. THE SOLAR SYSTEM WILL UTILIZE 1692 SO-FT OF DOUBLE
COVER, SELECTIVE COATED, FLAT PLATE COLLECTORS, HEATING COILS IN THE MULTI-
ZONE UNIT, THREE CHILLERS, COOLING TOWER, COOLING COILS IN ThE SINGLE ZCNE
UNIT, AND 3000 GAL. WATER STORAGE TANK.


GENERAL SITE DATA:
INCIDENT SOLAR ENERGY


COLLECTED SOLAR ENERGY

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


e7.48e
43719
14.666
7333
El
1
68
C.01
0.448
0.773
34.052


MILLION BTU
BTU/SC.FT.
MILLION BTU
BTU/SQ.FT.
DEGREES F
DEGREES F

MILLION BTU
MILLION BTU
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
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.


HEATING
12.020
7
0.867
0.324
11 227
N.A.
18.711
-0 222
1.444


COOLING
-0.047
0
0.000
0.001
0.016
0.023
N.A.
0.000
N.A.


SYSTEM TOTAL
11.973 MILLION BTU
7 PERCENT
0.667 MILLION BTU
0.773 NILLICN RTU
11.170 MILLION BTU
0.023 MILLION BTU
18.711 MILLION BTU
-0.670 MILLION BTU
1.444 MILLION BTU


SYSTEM PERFORMANCE FACTOR:


0.561


* 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


MONTHLY REPORT
SITE SUMMARY


SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY,1979


SOLAR/2019-79/05


SITE/SYSTEM DESCRIPTION:
THE SOUTH DAKOTA SCHOOL OF MINES SOLAR SYSTEM IS DESIGNED TO CARRY ABOUT
50% OF THE HEATING LOAD AND ABCUT 40% OF THE COOLING LOAD. SECOND STAGE HEATING
WILL BE PROVIDED BY A TWO STAGE FUEL OIL BURNER AND SECOND STAGE COOLING IILL
BE PROVIDED BY A REFRIGERATION COMPRESSOR IN THE MULTIZONE UNIT AND A SINGLE
ZONE 10-TON PACKAGE UNIT. THE SOLAR SYSTEM WILL UTILIZE 1692 SO-FT OF DOUBLE
COVER, SELECTIVE COATED, FLAT PLATE COLLECTORS, HEATING COILS IN THE MULTI-
ZONE UNIT, THREE CHILLERS, COOLING TOWER, COOLING COILS IN TI-E SINGLE ZONE
UNIT, AND 3000 GAL. WATER STORAGE TANK.

GENERAL SITE DATA:
INCIDENT SOLAR ENERGY 92.247 GICA Jl


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
12.682
7
0.914
0.342
11.844
N.A.
19.741
-0.234
1.524


CCOLING
-0.050
0
0.000
0.001
0.017
0.024
N.A.
0.000
N.A.


OL F S


496474 KJ/SQ.M.
15.47? GIGA JOULES
82275 KJ/SQ.M.
10 DEGREES C
20 DEGREES C
0.01
0.472 GIGA JOULES
0.816 GIGA JCULES
35.924 GIGA JOULES


SYSTEM TOTAL
12.622 GIGA JOULES
7 PERCENT
0.,14 GIGA JCULFS
0.816 GIGA JOULES
11.784 GIGA JOULES
0.024 GIGA JOULES
19.741 GIGA JOULES
-0.707 GIGA JOLLES
1.524 GIGA JOULES


SYSTEM PERFORMANCE FACTOR:


0.561


* DENOTES UNAVAILABLE DATA
8 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





MONTHLY REPORT
ENERGY COLLECTION AND STORAGE SUBSYSTEM (ECSS)

SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
PFPPRT PERIOD: MAY.1979


SOLAR/2019-79/05


DAY
OF
MONTH



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

SUM

AVG

NBS ID


INCIDENT
SOLAR
E NE RGY
MI LL I ON
BT U

1.665
2. 266
4. 547
4. 324
3. 129
4. 010
3. 004
1 074
0. 793
1. 160
2. 249
3. 401
3.367
3. 640
3.147
4.305
2. 529
1. 292
3. 197
3.608
3.661
2. 406
3. 076
4.621
1.865
2. 903
4. 236
3. 169
0.671
1.905
2.218

87. 438

2.821

0001


AMBIENT
TEMP


DEG-F

46
34
44
52
60
59
47
30
27
29
40
44
50
52
60
73
53
45
53
49
60
55
50
64
60
63
68
63
46
43
47



51

NI13
I-----------


AUX
THEPMAL
TO ECSS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
8
L
E


ENERGY
TC
LOADS
MILLION
BTU

0 042
0.016
0.082
0.066
0. 065
0. 042
0.040
0.000
0.096
0.021
0.011
0.087
0.114
0.066
0.080
0.009
0.000
0.028
0.000
0. 000
0.000
0 000
0.000
0.000
0 000
00000
0.000
0. 000
0 000
0.000
0.000
0.000
0.000

0.867

0.028


N.A.
-
- -- -


ECSS
OPERATING
ENERGY
MILLION
BTU

0.000
0.001
0.016
0.0 10
0.009
0.035
0.000
0.000
0.000
0.000
0.006
0.015
0.009
0.012
0.009
0.040
0.012
0.000
0.018
0.021
0.014
0.007
0.009
0.043
0.000
0.041
0.059
0.055
0.000
0.002
0.005

0.448

0.014

0102


FCSS
ENERGY
REJECTED
MILLION
BTU

0.000
0. OCO
0.000
0. 120
0.000
0.357
0.000
0.000
0. 000
0.000
0.000
0.000
0.000
0. 000
0.000
0.232
0.000
0.000
0.000
0. 000
0.301
0.031
0. 000
0.492
-0.000
0. 149
0.697
0 448
-0.019
C. 000
0.000

2.808


0.091


ECSS SOLAR
CONVERSION
EFFICIENCY


0.025
0.007
0.0 18
0 015
0 .021
0.010
0.013
0.000
0.121
0.018
0.005
0.0 26
0.034
0.018
0.025
0.002
0.000
0.022
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
O.0 CO
0.000
0.000
0.000
0.000


-1-
0.010

Ni 11


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


N.A.


SOLAR HEATING AND COOLING DEMCNSTRATICN PROGRAM








SOLAR HEATING AND COOLING DEMCNSTRATICN PROGRAM


MONTHLY REPORT
COLLECTOR ARRAY PERFORMANCE


SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY,1979


SOLAR/2019-79/05


1-----I
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

NBSID


INCIDENT
SOLAR
ENERGY
MILLION
BTU

1.665
2.266
4.547
4.324
3.129
4,010
3.004
1 074
0.793
1.160
2.249
3.401
3.367
3.640
3 147
4.305
2.529
1.292
3.197
3.608
3.661
2.406
3.076
49621
1 865
2.903
40236
3o169
0.671
1.905
2.218

87,438

2.821
QO----------


OPERATIONAL
INCIDENT
ENERGY
MILLION
BTU

1.119
1 523
3.859
3.815
2.666
3.556
2.399
0.040
0.000
0.015
1.499
2.795
2.795
3.206
2.349
2.205
1.224
0.062
1.993
2.999
2.994
10224
1.629
3.629
0,034
2.324
3.851
2.833
0.000
0.232
0.551

59.419

1.917


COLLECTED
SOLAR
ENERGY
MILLION
BTU

0.152
0.302
1.144
1.027
0,633
0.948
0.464
0.006
0.000
-0.014
0.364
0.921
0.770
0.959
0.748
0.637
0.343
-0.085
0.411
0.617
0.668
0.358
0.236
0.786
0.022
0.384
19049
0.521
0.000
-00011
0.304

14.666

0.473

0100
----------


DAYTIME
AMBIENT
TEMP
DEG F


53
40
55
62
68
70
56
34
*
33
48
51
57
62
74
87
51
43
65

72
65
61
77
62
71
83
76
47
47
53


59

----------


COLLECTOR
ARRAY
EFFICIENCY


0 091
0 133
0 252
0 238
0.202
0 236
00155
00 005
0.005
00000
-0.012
0 162
00271
0 229
0.263
0 238
0 148
0 135
-0.066
0 129
0 171
0,183
0.149
0 077
0.170
0.012
0.132
0 248
0 164
0 000
-0 006
0.137


0.168

N100


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






SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
STORAGE PERFORMANCE


SITE: SOUTH DAKOTA SCHOOL CF MINES, SD
REPORT PERIOD: MAY.1979


SOLAR/2019-7c/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


ENERGY
TO
STORAGE
MILLION
BTU

0.000
0.030
0.644
0.319
0.126
0.475
0.026
0.000
0.000
0.000
0.110
0.487
0.344
0.424
0.360
0.575
0.206
00000
0.343
0.533
0.296
0.182
0.209
0.449
0.000
0.272
0.675
0.372
0.000
0.019
0.119

7.595

----~-------
0.245

Q200


ENERGY
FROM
STORAGE
MILLION
BTU

0.000
0.000
0.000
0.000
0.000
0.013
0.000
0.000
0.616
0.218
0.000
0.000
0,000
0.000
0.000
0.021
0.057
0.126
0.022
0.000
0.055
0.028
0.026
0.116
0.008
0.104
0.166
0.016
0.064
0.036
0.000

1 .691

0.055

Q201


----~----~----I
CHANGE
IN STORED
ENERGY
MILLION
BTU
------------I
-0.275
-0.173
0.438
0.080
-0.096
0.258
-0.337
-0.202
-0.700
-0.287
0.004
0.379
0.215
0.251
0.166
0.017
0.077
-0.290
0.153
0.297
0.005
-0.037
0.005
-0.015
-0.297
0.092
0.214
-0.018
-0.084
-0.182
-0.049

-0.394

-0.013

Q202


STCPAGE
AVERAGE
TEMP
DEG F


177
167
171
183
182
184
186
176
166
133
130
139
151
160
170
173
177
170
168
178
187
185
183
185
174
176
177
175
179
174
169


171


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


STORAGE
EFFICIENCY



1 000
-5.795
0 661el
0.251
-0.761
0.570
-12.869
1 000
1.000
1 000
0.038
0 778
0.625
0 592
0.460
0.065
0*650
1 000
0.509
0 558
0.200
-0 047
0.144
0 226
1 000
0.720
0.563
-0 006
1 000
-7.812
-0 417


0.171

N108









SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE HEATING SUBSYSTEM


SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY, 1979


SCLAP/2019-79/05


DAY
OF
MON.


SPACE
HEATING
LOAD
MILLION
BTU

0.608
0.768
0.643
0.382
0.247
0.042
0 147
1.081
1 346
1.510
1.099
1.098
0.753
0.443
0.384
0.009
0.000
0.475
0.347
0. 000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.639

12.020

0.388

Q402


SOLA R
FR .OF
LOAD
PC T


7
2
13
17
26
100
27
0
7
1
1
8
15
15
21
100
0
6
0
0
0
0
01
0|
0
01
0
0
0




7
N4 --
N4 00


SOLAR
ENERGY
USED
MILLION
BTU

0.042
0.016
0.082
0.0661
0.065
0.042
0.040
0.000
0.096
0.021
0.011
0.087
0.114
09066
0.080
0.009
0.000
0.028
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

0.867

0.028

0400


OPER
ENERGY

MILLION
BTU

0.021
0.022
0.026
0.024
0.016
0.004
0.024
0.009
0.030
0.025
0.026
0.022
0.025
0.025
0.015
0.002
0.000
0.003
0.002
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.004

0.324

0.010

0403


AUX
THERMAL
USED
MILLION
BTU

0.566
0.753
0.560
0.316
0.182
0.000
0.106
1.081
1.245
1.489
1.088
1.010
0.638
0.377
0.304
0.078
0.000
0,4461
0.347
0. 000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0,000
0.639

11.227

0.362

0401


AUX
ELECT
FUEL
MILLION
BTU
-------- I
N
01
T

A
P
P
L
I
C
A
Pi
L
E
















N.A.

N.A.


AUX
FOSS IL
FUEL
MILLION
BTU

0.944
1.255
0.934
0.526
0.303
0.000
0 177
1.802
2.074
2.482
1.813
1.684
1 064
0.629
0.507
0.130
0.000
0.744
0.578
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
1.065

18.711

0.604

0410


ELECT
ENERGY
SAVINGS
MILL ICN
BTU

-0.015
-0.014
-0.020
-0.020
-0.014
-0.004
-0.024
-0.002
-0.018
-0.010
-0.015
-0.011
-0.018
-0 020
-0.012
-0.002
-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

-0.222

-0.007

0415


* DENOTES UNAVAILABLE DATA.
3 DENOTES NULL DATA.
N.A. DENOTES NCT APPLICABLE fATA.


-p


FOSSIL
ENERGY
SAVI GS
MILLION
PTU

0.070
0 026
0.137
0.111
0 109
0.070
0.067
0.000
0.160
0 036
0 018
0.146
0.190
0.110
0.133
0.015
0.000
0 047
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 .444

0.047

0417


31

SUM

AVG

NBS


BLD G
TEMP

DEG.
F

67
64
67
69
71
70
67
63
62
62
64
65
68
69
71
73
70
69
70
68
69
69
68
70'
71
72
73
74
69
65'
67


68

N406
---I


AMB
TEMP

DEG.
F

46
34
44
52
60
59
47
30
27
29
40
44
50
52
60
73
53
45
53
49
60
55
50
64
60
63
68
63
46
43
47


N11

N1 13







SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM


MONTHLY REPORT
SPACE COOLING SUBSYSTEM


SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY,1979


SCLAR/2019-79/05


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
COOLING
LOAD
MILLION
BTU

0.000
0.000
0.000
0.000
0.000
0.000
0 000
0.000
00000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0000
0.000
0.000
-0. 047
0.000
0.000
0.000
0.000
0.000
0.000
0.000

-0.047

-0.002

Q502


- --- I
SOL AR
F R OF
L AD
PC T


0
0
o0
0
0
0
0
0
0
0
0
0
0.
0
0
0
01
0
0
0
0
0
0
0
0
0
ol
0
0
01
Ol



0

N5 00


SCLAR
ENERGY
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

0.000

0500
0,000----


0.000


Q503


OPEP
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
0.001
0.000
0.000
0.000
0.000
0.000
0.000
0.000

0.001


AUX
FOSSIL
FUEL
MILLION
BTU

N
0
T

A
P
P
L
I
C
A
E
L
E


AUX AUX
THERMAL ELECT
USED FUEL
MILLION MILLION
BTU 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 0.0001
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
00000 0.000
0.016 0.0231
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 0.0001

0.016 0.023

0.000 0.001

Q501


Q508


ELECT
ENERGY
SAVINGS
MILLION
BTU

0.000
0.000
0.000
0.0001
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
C.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


0512


__--------- W W
FOSSIL
ENERGY
SAVINGS
MILLION
BTU

N
0
T

A
P
P
L
I
C
A

L
E


N.A.
l.A.

0514


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


N.A.

N.A.


BLDG
CRY
BULB
TEMP
F

67
64
67
69
71
70
67
62
62
62
64
65
68
69
71
73
70
69
70
68
69
69
68




690
65
67
-- -

68

N406


AMB
TEMP

DEG
F

46
34
44'
52
60
59
47
30
27
29
40
44
50
52
60
73
53
45
53
49
60
55
50
64

63
68
63
46
43
47



51

N1 13








SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM

MONTHLY REPORT
ENVIRONMENTAL SUMMARY


SOLAR/2019-79/05


SITE: SOUTH DAKOTA SCHOOL OF MINES, SD
REPORT PERIOD: MAY,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

NBS ID


DIFFUSE
INSOLATION

BTU/SQ FT

N
0
T

A
P
P
L
I
C
A
B
L
E


TOT AL
INSOLATION

BTU/SQ.FT

832
1133
2273
2162
1565
2005
1502
537
396
580
1125
1700
1683
1820
1574
2153
1265
646
1598
1804
1830
1203
1538
2310
933
1452
2118
1585
335
953
1109

43719

1410

0001


AMBIENT
TEMPERATURE

DEG F

46
34
44
52
60
59
47
30
27
29
40
44
50
52
60
73
53
45
53
49
60
55
50
64
60
63
68
63
46
43
47



51

N113


DAYTIME
AMBIENT
TEMP
DEG F

53
40
55
62
68
70
56
34

33
48
51
57
62
74
87
51
43
65

72
65
61
77
62
71
83
76
47
47
53


59


RELATIVE
HUMIDITY

PERCENT

N
0
T

A
P
P
L
I
C
A
e
L
E


















N.A.


WIND
DIRECTION

DEGREES

N
C
T

A
F
P


N.A.


tI ND
SPEED

M.P.H.

N
0
T

A
P
P
L
I
C
A
B
L
E


N.A.


N115 N114
-------I-------------------


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


N.A.

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


-









UNIVERSITY OF FLORIDA
I IIII IIIIIIIIII 1 11 5Il l lllll Ill 36 11 0l ll111 ii
3 1262 09052 5360




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