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1~I. 22. OL A4<~
SOLAR/2019-79/06 Monthly Performance Report SOUTH DAKOTA SCHOOL OF MINES JUNE 1979 U. S. Department of Energy National Solar Heating and Cooling Demonstration Program National Solar Data Program 4294 /Az l -'? /^ NOTICE This report was prepared as an account of work sponsored by me 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 SOUTH DAKOTA SCHOOL OF MINES JUNE 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 1 4294 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 100*F. 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 2 4294 TYPICAL 3 AU CHILLER UNITS Figure 1. SOUTH DAKOTA SCHOOL OF MINES SOLAR ENERGY SYSTEM SCHEMA TIC 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 1800F 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 850F. 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 200F greater than the storage tank bottom temperature. This mode is also entered in the cooling mode if, in addition to being 20F 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. 4 4294 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 195F. 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 Visitor's Center solar energy system was operational throughout the month of June. However, due to the failure of a signal conditioning module in the SDAS and resultant measurement errors on the first 32 channels, data for the first 15 days was not useable for report- ing purposes. This report, therefore, covers only the period from June 15 through June 30, 1979 for which valid data was received. Consequently, the accuracy of the estimated monthly energy values may be significantly less than normal. During this reporting period, the first cooling operation by the solar energy system for 1979 was observed. B. Weather During the last half of June, the measured outside ambient temperature was 62*F which is 20F below the long-term average for the Rapid City, South Dakota area. The measured average insolation in the plane of the collector 5 4294 was 1,293 Btu/ft2-day, 28 percent below the long-term average of 1,802 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 41.37 million Btu of solar energy was measured in the plane of the collector array. The sys- tem collected 9.43 million Btu or 23 percent of the total available insolation. During the time the system was operating, a total of 28.61 million Btu was incident on the array. This represents an operational collector efficiency of 33 percent. A total of 0.40 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 3.53 million Btu were delivered to storage during the reporting period and 2.68 million Btu were supplied from storage. Storage losses included 0.72 million Btu from the storage tank and an additional 0.77 million Btu from the collector loop-to-storage loop heat exchanger. A total of 1.34 million Btu was delivered to storage during periods when the storage loop pump P2 was off, apparently due to thermosiphon flow in the storage loop. A net decrease in stored energy of 0.13 million Btu was observed during the reporting period. Excluding the stored energy input due to thermosiphoning, the storage efficiency was 72 percent for the reporting period. Space Heating Load The space heating load for the reporting period was 1.65 million Btu. Solar energy supplied 1.44 million Btu of this load, which represents a heating solar fraction of 87 percent. An average building temperature of 71F was maintained during the reporting period. There was no first stage heating from the collectors for this period and the entire solar contribution to the heating load was supplied from storage. Operating energy required to deliver solar energy to the heating load amounted to 0.10 million Btu. A total of 0.97 million Btu of solar energy was intentionally rejected by the heat rejection cooling tower. 6 4294 Space Cooling Load The space cooling load for the reporting period was 8.16 million Btu. Solar energy supplied 1.13 million Btu of this load, which represents a cooling solar fraction of 14 percent. Solar energy input to the absorption chillers amounted to 3.84 million Btu, resulting in a coefficient of performance (COP) for the solar cooling subsystem of 0.29. Auxiliary cooling provided by the vapor compression air conditioners amounted to 7.02 million Btu from the unit in the multizone air handler and 0.011 million Btu from the unit serving the observation room. Operating energy required to deliver solar energy to the cooling load amounted to 0.31 million Btu. D. Observations Review of scan level data for June 30 showed near freezing temperatures (measurements T502 and T552) at the inlet and outlet of the solar cooling coil which receives chilled water from the solar fired absorption chillers. With concern that these low temperatures could result in freezing and potential damage to the chillers, the Project Manager was notified who in turn notified site personnel. Data further showed a cessation of air flow through the observation room air handler where the solar cooling coil is located. Investigation by site personnel revealed a broken fan belt on the air handler fan. The fan belt was replaced and normal operation was restored on July 3, 1979, with no apparent damage to the system. E. Energy Savings The solar energy system at Mount Rushmore provided a savings of 2.39 million Btu of fossil fuel during the reporting period and a savings of 0.32 million Btu of electrical energy. This savings was realized at the cost of 0.40 million Btu of electrical operating energy for the Energy Collection and Storage Subsystem (ECSS). 7 4294 III. ACTION STATUS Sensor T400, which was cited as being in error in the monthly performance report for May, was replaced and recalibrated in early June and is now consistent with other temperature sensors in the collector loop. Discrete signal D002 which indicates the status of valve V5 (through or bypass ARKLA units) appears to be non-functional. This problem will be corrected during a site visit scheduled for July 1979. 8 4294 SOLAR HEATING AND COOLING DEMONSTRATION PP3GRAM MONTHLY REPORT SITE SUMMARY SITE: SOUTH PLKOTA SCHOOL nF MI rS, SD RFDRT PERIOD: JUNE,10q7 SOLAR/2019-79106 SITF/SYSTEM DESCRIPTION: THE SOUTH DAKOTA SCHOOL OF lMI'S SOLAR SYSTEM IS DESIGNED Tn CARRY ABnUT 50n OF THF HEATING LOAn AND ABOUT 40T OF THF COOLING LOAD. SECOND STAGE HEATING WILL BE PPDVI"FD RY A TWO STAGE FUJFL OIL PUPNER AND SECOND STAGE COOLING WILL BE PROVIDED BY A REFRIGERATION CON'PPESSOR IN THF MULTIZnNE UNIT AND A SINGLE ZONF 10-TON PACKAGE UNIT. THE SCLAP SYSTEM WILL UTILIZE 1692 SQ-FT OF DOURLF ,.OVER, SELECTIVE COATED, FLAT PLATE COLLECTORS, HEATING COILS IN THE MULTI- ZONE UPIT, 'HPEF CHILLERS, COCCLING TOVeP, CCOLING CnILS IN THC SINGLE ZONE UNIT, AND 3000 GAL. WATER STORAGE TANK. GENERAL SITE 3ATA: INCInENT crLAR ENERGY 41.371 MILLIC COnLLECTFD SOLAP ENERGY AVERAGE AMBIENT TEMPERATUPE AVERAGE BUILDING TEMPERATURE ECSS SOLAR CONVERSION EFFICIENCY FCSS OPERATING ENERGY TnTAL SYSTEM O0DoATING c~'FPGY TOTAL ENEPSY CONSUMED SU'RSYSTEM SUMMARY: SLAP FRACTIOr' SOLAR ENERGY USED OPERATING ENERGY AUX. THERMAL ENERGY AUX. ELECTRIC FIJFL AUX. FOSSIL FUFL ELECTRICAL SAVINGS FOSSIL SAVINGS HOT WATFP N.A. N.A. N.A. N.A. N.A, 1 A . N.A. 1I . HEATING 1.646 P7 1.435 0.103 0.211 N.A. 0.352 -0.102 2.392 COOLING , 8.158 14 3. R?38 0.3I 2.639 3.769 N.A. 0. 148 N1. A. N TU 20686 UTU/SQ.FT. 9.432 MILLION PTU 4716 BTU/SP.PT. 62 DEGREES F '1 DEGREES F 0.13 0.400 MILLION BTU 0. 10 MILL !OT BTlh 14.36? MILLION BTU SYSTEM TOTAL P.805 MILLION RTU 26 DFPRCCT 5.273 MILLION RTU 0.910 MILLION BTUJ 2.849 MILLION BTU 3.769 MILLICY BTU 0.152 MILLION BTU -0.354 MILLICM BTU 2.392 MILLION TUJ SYSTEM PERFORMANCE FACTOR: 0.628 * DENOTES UNAVAILABLE "ATA @ DENOTES NILL nATA N.A. DEMOTFS NOT APPLICABLE DA'A REFRFNCF: ISFR'S GUIDE Tr THE MONTHLY PFoFORMANrE RFPrRT 2F THE NATIONAL SnLAP DATA PPCGRAM,FERRtJAPY 2P,1078, SOLAR/0004-78/1R m SCLAR HATING AND COOLING DEMONSTRATION PROGRAM MONTHLY REPORT SITE SUMMARYY SDLAR/2019-79/06 SITE: SOUTH DAKOTA SCHOOL OF MINFS, SD RFDORT PERIOD: JUNE,1979 STTE/SYSTFM DESCRIPTION: THF S6UTH 3AKrTA SCHOOL OF MINES SOLAR SYSTEM IS DESIGNED TO CARRY ABOUT 51r OF THE HEATING LOAD AND ABOUT 4"0 OF THF COOLING LOAD. SECOND STAGE HEATING WILL BE PROVIDED BY A TWO STAGE F0LEL CIL BUPNEP AMD SECOND STAGE COOLING WILL BE PRrVIDF) BY A REFRIGERATION COMPRESSOR IN THF MULTIZONF UNIT AND A SINGLE ZONE 10-TCO PACKAGE UNIT. THE SLAP SYSTEM WILL UTILIZE 1591 SQ-FT O' DOC'JLE COVFR, SELErTIVE COATED, FLAT PLATF COLLECTORS, HEATING COILS IN THE MULTI- ZONE UNIT, THREE CHILLERS, CClLIMS Tnf!FR, CLING COILS IN! THE SINGLC ZONE UNIT, AND 3300 GAL. WATER STOPAGF TANK. GFNFRAL SITE DATA: INCIDENT S"LAR ENERGY 43.647 GIGA J COLLECTED SCLAR ENERGY AVERAGE AMBIENT TEMPERATURE AVERAGE 3BILDING TEMFRATURF ECSS SOLAP CONVERSION EFFICIENCY ECSS OPERATING ENERGY T"TAL SYSTEM OPPFPATING ENFDGY TOTAL ENEPSY CONSUMED SURSYSTFM SUMMARY: LOAD SOLAR FRACTION SOLAR ENERGY USED OPERATING ENERGY AUX. THERMAL ENG AUX. ELECTRIC FUEL AUX. FOSSIL FUEL ELECTRICAL SAVINGS PCSSIL SAVINGS HOT WATEP N A, A. N.A. N.A. N.A. N.A. N.A. N. A HEATING 1.7?7 07 1.514 0. 10 0.223 N.A. 0.372 -0.108 2.52? COOLING 8.607 14 4.049 0.323 2.784 3.977 N.A. 0.156 N.A. 3ULES 234907 KJ/SQ.M. 9.950 GIGA JOULES 53553 KJ/S.M. 17 DEGREES C 22 DEG'PFS C 0.13 0.422 GIGA JOULES 0.8r4 GIGA JOULES 15.152 GIGA JOULES SYSTEM TOTAL 10.344 GIGA JDULES 7 noEppC!T 5.563 GIGA J ULJS 0.854 SIGA JOULES 3.006 GIGA JOULES 3.977 GIGA JODLES 0.372 GIGA JOULES -0.374 GIGA JOULES 2.524 SIGA JULES SYSTEM PERFPP4ANCE FACTOR: 0.628 DENOTES UNAVAILABLE DATA 3 DENOTES NULL DATA N.A. DENOTES NOT APoLICAB.F DATA PFcERFNCE: 'ISFR'S GUIDE TO THE MONTHLY PERFORMANrE REPORT 3F THE NATIONAL SLAP DATA PROGPAM,FFPRUARY 28,1078, SOLAR/0004-78/18 SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM MONTHLY REPORT ENFPGY COLLECTION AND STORAGE SUBSYSTEM (ECSS) SOLAR/2019-79/06 SITE: SOUTH DAKOTA SCHOOL OF MINES, SD REPORT PERIOD: J1UNF,1Q79 -~1 DAY O : MONTH 1 2 13 4 S 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 ?l 22 73 ?4 25 26 27 28 ?9 30 SI M AVG NBS ID INCInENT SOLAR ENERGY MILLION BTU a a a 0.003 3.030n 0.16:9 0,707 0.685 3.572 3.722 3.003 1.517 2.116 0.707 3.572 3.72? 3.351 2.110 2.486 3.268 3.221 4.174 3.053 41.371 1.379 0001 ~----------- AMBIENT TEMP DEG-F ?i) a a5 48 51 62 65 64 6-4 73 67 71 ?) 77 a- a 56 61 55 51 62 651 64 73 66 67 71 77 62 N113 EMFORGY Tr LOADS MILLION BTU a a a a a' a 0.141 0.000 0.000 0.162 0.065 0.251 0.47? 0.404 0.085 0.209 0.552a a a 0.000 0.141 0.000 0.000 0.976 5.27? 0.162 0.065 0.251 0.47? 0.440 0.209 0. 52 0. 51Q 0. 56 0.457 0. 37 0.976 5.273 0.176 AUX THERMAL TO ECSS MILLION BTU -@ a a S) a a a a N.A. ---------- --I FCSS OPERATING ENFPGY MILLION BTU ---------- 33 a a a a) a 0.000 0.003 a0. 005) 0.037 0.033 0.021 0.014 0.026 0.0011 0.03 0.037 0.04733 0.0321 0.014 01026 FCSS ENERGY REJECTED MILLION BTU a a a) a a ? a 0.300 0.000 0.000 0.13000 0.016 0.000 0.0290 0.33000 0.000 0.000 0.000 0.133 0.316 0. 285 0.029 0.334 0.171 0.967 0.332 0.163' 0.285---- E:SS 5LAR CONVERSION EFFICIENCY 0.047 0.000 0.003 1.220 0.00 0.127 a 0.134 0.041 0.091 0.17003 0.200: 0. 127 0.134 0.0481 0.247 0.177 0.127 "'COTES 'I'VAILALE ")ATA. SDETO'FS NULL DATA. N.A. FrNOTES 'nT APPLICABLE DAt. SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM MONTHLY REPORT CPLLECTOP ARRAY PEPFnRMANCE SITE: SOUTH DAKOTA SCHOOL OF MINFS, SD RFPnRT PEPIO0: JUNE,107Q SCLAR/201q-79/06 n4Y OF MOITH 1 2 3 4 6 7 5 R Q 10 Ii 11 12 13 14 15 15 17 IP 1Q 2 ' 21 22 7 24 25 ?6 27 28 2 30 sUS 1V3 NBSID3 ----------1 INCIDENT SCLAP ENERGY MILLION BTU a 'A.009 2 1.517 0.160a 0,707 0.685 3.572 3.722 3.351 2.110 -'* a 3.13?2 2.4P6 3.268 3.221 4.174 3.7253 3I722 no 0o 3. 26R 1.?-9 @01 rPERATIGNAL INCIDENT ENERGY MILLION BTU a) 0.000 60.48@ r.000 0.016 a ? a 3.18s 2.403 1.103 1.101 2.111 1.685 2.182 a a 2.1?0 1.594 2.4P3 0.6148 0.5ooo 0.016 0.054 3.21P 2.403 1.103 2 .11 1.685 2.182 3.594 2.88 28.611 0.954 COLLECTED SOl AP ENEP GY MILL ION BTU a a) a 9 a) 132 I 9 0.132 0.000 -0.064 -0.023 ].1' 0.686 0.460 0.118 0,955 0.410 0.006 0.66? 1.027 0.825 c.432 0.31- _---------- I DAYTIME 4F AMBIENT TEMP DEG F 7C 60 49 53 47 70 a76 53 49 72 8 89 86 a ' 70 60 40 53 47 76 76 72 89 72 83 84 P6 _--------.-\ r- 'r4-TpF IiMFI"A" TI AI1 F rTA A. a DF4OTCS NOLL DATA. m...A. "FNnTFr MFn' &OPLTCARLF DATA. CLLLECTOD ARRAY EFFICIENCY a) a) a3 a) a 0.305 0.087 0.000 -0.090 -0.034 0.311 0.205 0.218 0.051 0.?05 0.165 0.305 a 0. :06 a a a a 0.045 0.305 0.067 0.000 -0.090 -0.034 0.311 0.205 0.218 0.051 0.?05 0.165 0.305 0. ?06 I. 245 -209 O.2?? N100 ----------- 100 SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM MONTHLY RFP RT ST"PAGF PERFCPMAMNr SITE: SOUTH DAKPTA SCHOOL OF MINES, SD RFPORT PFRIO: JUNE,107o SOLAP/2019-7f/06 nAY OF Mn4TH 1 ? 3 4 5 6 7 P 10 11 12 23I? '1 16 17 18 ?' 21 2 23 24 R 7~ 2Q 3D AVG NPrS 1 ENERGY TO cSTORAGF MILLION PTU a a a 9 a a a a 0.000 0.623 0.336 0.000 0.000 0.000 0.734 0.296 0.251 0. 208 0.013 0.023' 0.123 0.155 0.171 -0.002 3.533 0.118 T100 - 0 03 - FMFPGY FROM STORAGE MILLION PTU a a a. 0.000 0.000 a 0.275 0.244 0.198 0.077 0.305 a a a a 0.000 0.100 0.277 0.447 ?.67 0.097 CHANGE IN STPRFO ENFR GY MILLION PTU a a a a a a a' -0.002 0.589 -0.081 -0.105 -0.401 -0.226 0.54' 0.357 0.074 -0.004 -0.014 -0.164 -0.350 0.066 0.060 -0. 081 1 -0. 43 -0.131 -0.0 " 0201 Q202 STOPAGF AVEPA-CE TFMP DEG F a a) a a a a a a a a 122 135 145 14' 127 117 127 138 151 152 153 15? 13? 114 140 137 120 137 137 ---~------- -~--------- i----------- STORAGE EFFICIFNCY 2, a: a a 0.946 -1.427 1.000 1.000 1.000 0.010 0.819 0.741 0.772 0.305 -0.868 -2.430 0.539 1.285 1.151 -6. ??26 -----------1 01 0.721 0.--" - * lccm1r4tC UNAVATI API F r. TA. a FMIDTFS NULL nATA. N.A. FFMnTCr FM.T APPL1CARI F nATA. SCLAR HATING AND CrrLING DEMONSTRATION PROGRAM MONTHLY REPORT SPACE HEATING SIURSVTFM SOLAR/2019-79/06 SIT": SOUTH DAKOTA SCH30L OF MINES, SD REPORT PERIqD: JUNE,lq79 DAY OF i 4 6 13 '4 16 1n 13 ' 17 21 2? 23 24 ?4 q 26 7? 20 3n' SN" SVG MR< SPACE HEATING LOAD MILLION RTU a 0.175 0.165 a a 074 a 0.090 0.002 0.000 0.000 0.175 0.23865 0.597 0.081 0.085 0.168 0.074 0. 216 0.001 0.086 0.110 0.238 1.646 0.0355 Q 02 SOLAR FP. OF LOAD PCT I--_-1- a! a) @' a 0) a 0 n 93 100 83 98 98 100 13 07' 99 0 100 100 100 87 N400 SOLAR ENERGY USED MILLION RTU a 0.162 a) a a a a 0.000 0.000 0.000 0.000 0.162 0.065 0.206 0.0%6 0.085 0.022 0.214 0.000 0.086 0.110 0.238 1.435 3.048 Q400 OPEP ENFPGY MILLION BTU a a a( 0.000 i 0.012 a a a a a 0.000 0.000 0.000 0.000 0.014 0.308 0.014 0.010 0.004 0.00 0.001 0.00" 0.012 O.000 0.005 0.008 0.018 0.103 0.003 (Q40' AUX FLECT FUEL MILLION BTU a a) 3 a a a a a a a r AUY THERMAL USED MILLION RTU @I a) d 0.012 a@ 0.0030 0.0411 0.0021 a 0.002 0. 002 0.051 0.000i 0.0102 0.0001 04211 0.0027 0.400 0.037 40.00 AUX FOSSIL FUEL MILLION PTU 0.000 0.321 a a a 0.0 0.000 a a a a a 0.352 0."03 0.000 0 100 O.0 30321 0.000 3936 0.304 0.003 0.000 0. 244 0.004 0.0304 0.002 0.000 0.00 0. 000 0.352 0.312 0410 ELECT ENERGY SAVINGS MILLION PTU a n.300 1.000 0.000 -0.014 -f. 014 -0.010 -0.004 -0.001 -3.004 -0.005 -0.008 -0.018 -0..102 04157 a a a 0.000 0.000 -0.014 -0.008 -"0.14 -0.010 -0.004 -0.004 -0.012 0.000 -0.005 -0.008 -0. 018 -0.10? -3.C 0? 0415 FOSSIL ENERGY SAVINGS MILLION BTU a a@ a a a S a a a a 0.000 0.000 0.000 0.270 0.109 0.?43 0.160 0.133 0.142 0.036 0.120 0.356 0.000' 0.143 0.184 0.397 02.997 -------- 1 2.197' C.i30' n417 i neIrP tC hIM&VATIl API F nATA. a nFNOTES NULL IATA. N.A. nFNrOTcS hfnT ADDI TrARIc ARTA. N.A. 1.A. 9LOG' TEMP DEG. a 71 a71 a a a a) 7 ? 70 3 3 3 71 71 73 69 70 69 71 71 71 72 70 70 72 73 72 N406 A#B TFMP DEG. F a iR; 48 65 64 59 6? 73 66 67 71 72 77 - 56 6113 48 6? 65 64 6? 73 56 67 71 77 6? "'113 SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM MONTHLY PEPOPT SPACE COOLING SUBSYSTFM SOLAR/2019-79/06 SITE: SOUTH DAKOTA SCHOOL OF MINFS, SP PFPOlR PERIOD: JUNE,1979 rlAYl OF MCN. 7 ! --13 12 13 4 15 18 11 12 13 24 15 16 17 1B I3 2? 24 2,' 2r. AVG NBS SPACE COOLING LOAD MILLION BTU al @9 a a 3 a 0.000i 0.400 0.000 0.000 0.? 74 0.560 0.540 0.000 0.273 1.145 1.188 0.586' 09Q71 0.852 1.359' 8.158 0.272 Q502 SOLAR FR.OF LOAP PCT 3 1 a 0 a a1 -0 a a a 32 a 29a 17_ a a) 15 3 3 -0 28 32 3 29 17 8 25 0 14 N500 SOLAR FNEPGY USED MILLION BTU a@ a) 0.00i 0.141 0.0001 0.000 0.000' 0.000 0.0451 0.378 0.369' 0.003 0.187' 0.480' 0.305 0.506 0.372' 0.227' 0.73q 3.838 0.128 Q500 CPER ENERGY MILLION BTU aF a a a a a a 3.000 0.015 0.000 0.000 0.000 0.000 0.003 0.036 0.015 0.000 0.016 0.041 0.025 0.033 0.0'5 0.018 0.049 0.?06 0.010 0503 AtII THERMAL USFD MILLION BTU a @ 1 0.000 a a 0113 0.144 0.000 0.074 0.329 0.430 O.J00 0.184 0.296 0.316 0.479 2.630 0.087 so01 0.00 AUX ELECT FUFL MILLION BTU a a) a a 0.181 0.003 0.000 0.000 0.000 0.161 0.205 0.20c 0.000 0.136 0.470 0.615 0.263 0.423 0.451 0.685 3.76Q 9.126 AUX FO cIL FUEL MILLION RTU 0509 aJ a) a a a a a a N.A. N.A. Q508 ELFCT ENERGY SAVINGS MILLION BTU @ @I a a a a) a; a @1 o3 Ono 0.009 0.0300 0.000 0.000 0.000 -0.004 0.028 0.016 0.000 0.016 0.035 0.015 0.025 0.030 0.005 -0.047 0.148 3.035 Q512 ) DENOTES NULL DATA. ".A. Dr'nTrS ,MT AP;LIrA-LF nAA&. FOSSIL ENERGY SAVINGS MILLION BTU aR a F 0514 a) 0'514 BLDG DRY BUL9 TEMP F a 71 a71 69a a 70 69 71a 71 71 71 72 69 70 69 71 71 72 70 73 72 72' 71 N406 - -- AMP TEMP OEG F a 56 61 9 48 a1 50 62 65 6? 56 61 48 50 73 65 64 67 71 72 77 ,-- 62 N113 SOLAR HEATING AND COOLING DEMONSTRATION PROGRAM MONTHLY PFPORT FNVIPONMENTAL SUMMARY SITE: SOUTH DAKOTA SCHOOL OF MINES, S'D RFPPRT PERIOD: JUNE,1Q79 SOLAR/2019-79/06 DAY OF MnNTH 10 2 13 4 5 6 17 B 9 10 11 12 13 14 15 16 17 19 20 23 SUI' 24 25 26 27 2q 30 SU NPS ID_ --VG_-- TOTAL INSOLATION PTU/SQ.FT a a a a a a a a a a a a 1504 750 PS 354 343 17R6 1676 1355 1147 1566 1243 1634 1611 2087 1976 206%6 5-0 Q031 DI FFUSE INSnLATION BTU/SQ.FT a a a a N.A. a a a a a a a N.A, N113 AMPIENT TEMPERATURE DEG F a a a a 56 61 55 48 51 50 62 6F 64 59 63 63 73 66 67 71 72 77 RELATIVE HUMIDITY PERCENT E a a a a WIND DIRECTION DEGREES a) a) a a) a 3 DAYTIME AMP IENT TFMP DEG F ? a 60 a 4 2, a 60 49 53 47 7n 76 76 63 72 89 83 P1 P4 S6 71 WINn SPFED 4.P.H. 9 a a a a 5) a a @) N.A. N114 * nENOTES UNAVAILABLE DATA. NA. NOTES NOT APPLICABLE nA'A. N.A. 3ENOTES N)T APPLICABLE nA`A. N.A. N.A. N115 ------------ SnLAR HEATING AND CrOLING DFMONSTRATION PROGRAM MONTHLY FPPnPT THERMODYNAMIC CONVERSION FQUIPMFNT SITE: SOUTH DAKOTA SCHOOL OF MINFS, SO REPORT PFRIPD: JUNE,1970 SOLAR/2019-79/06 nAY OF MOnTH 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 31 22 23 ?4 25 26 27 29 29 30 SUA AVG EQUIPMENT LOAD MILLION 'T .1 a) a a a a) a) a) a) a a) a 0.000 0.061 0.000 0.000 0.000 -0.001 0.159 0.176 0.000 0. 080 0.189 0. 100 0.145 0.162 0.05 0.006 1.130 0.038 THEPMAL ENERGY INPUT MILLION R TU a a( a) a) 0.003 a) a 0.000 a a a 0.141 0.000 0.000 0.000 0.045 0.378 0.36r 0.00'0 0.187 0.480 0.j*05 0.506 0.372 0.22? 0.738 3.838 0.12 OPERATING ENERGY MILLION PTU a O.0OO 0.000 a a) -' a) 0.03 0.015 0.000 0.000 0.000 0.000 0.0032 0.036 0.034 0.016 0.040 0. 02 0.032 0.035 0.017 0.049 0.3040 0.010 - i---------- ENERGY REJECTED MILLION RTIJ a a a) a) a) a) a) 1 0.000 0.000 0.300 0.100 a a a 0.000 0.000 0.000 0.000 0.000 0.00? 0 4?8 0 5R7 0.586 0. 372 0.916 2.887 0.096 - * DElOTF UNAVAILABLE DATA. a DEMOTES NULL nATA. .&. )T3E:'~T" LI'C2LT A. JnTE: ---~-------- COEFFICIENT! 0= PERFORMANCE (SEE NOTF) a 3 a a a 0.43 1 0.000 0.000 0.000 0.00 -0.023 0.420 0.476 0.000 0.429 0.394 0.320 0.243 0.436 0.236 0.008 0.394 0.010 * 0 0 o z 2 2 2 0 0 0 Z m op ;I UNIVERSITY OF FLORIDA 3 1262 09052 5212 .... i..... .... :i :' " :i!S ..... |
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