사무소 건물 태양열급탕시스템의 LCC 최적화에 따른 에너지성능 변화 분석
Energy Performance Variation of Solar Water Heating System by LCC Optimization in an Office Building
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초록
Thisstudyexaminedtheenergyperformanceaccordingtothemaindesignparametersofasolarwaterheating system foran officebuilding using thelifecyclecost(LCC)optimization simulations.TheLCC optimization simulationsofthesystem wereconductedwithTRNSYSandGenOptemployingtheHooke-Jeevesalgorithm for caseswherewatertemperaturewas60℃ and50℃.Theresultsshowedthatforwatertemperatureat60℃ and 50℃ theglobalradiationincidentonthecollectorcouldbedecreasedby16.98% and28.52%,collectorusefulenergy gaincouldbedecreasedby15.04% and22.59%,energytoloadfrom storagetankcouldbedecreasedby10.86%and 18.06% and AH energy to load could be increased by 16.86% and 38.50% respectively compared to a non-optimizedsystem.Theannualaveragecollectionefficiencyofthecollectorwasincreasedby0.88% for60℃and2.78% for50℃ becauseofincreaseofcollectorslopeanddecreaseofthemassflow ratepercollectorarea. Theannualaverageefficiencyofthesystem wasincreasedby1.74% and3.47% comparedtothebasissystem. However,theannualsolarfractionofthesystem wasdecreasedby6.68% for60℃ and11.26% for50℃ dueto decreaseofcollectorareaandstoragetankvolume.
Abstract
Thisstudyexaminedtheenergyperformanceaccordingtothemaindesignparametersofasolarwaterheating system foran officebuilding using thelifecyclecost(LCC)optimization simulations.TheLCC optimization simulationsofthesystem wereconductedwithTRNSYSandGenOptemployingtheHooke-Jeevesalgorithm for caseswherewatertemperaturewas60℃ and50℃.Theresultsshowedthatforwatertemperatureat60℃ and 50℃ theglobalradiationincidentonthecollectorcouldbedecreasedby16.98% and28.52%,collectorusefulenergy gaincouldbedecreasedby15.04% and22.59%,energytoloadfrom storagetankcouldbedecreasedby10.86%and 18.06% and AH energy to load could be increased by 16.86% and 38.50% respectively compared to a non-optimizedsystem.Theannualaveragecollectionefficiencyofthecollectorwasincreasedby0.88% for60℃and2.78% for50℃ becauseofincreaseofcollectorslopeanddecreaseofthemassflow ratepercollectorarea. Theannualaverageefficiencyofthesystem wasincreasedby1.74% and3.47% comparedtothebasissystem. However,theannualsolarfractionofthesystem wasdecreasedby6.68% for60℃ and11.26% for50℃ dueto decreaseofcollectorareaandstoragetankvolume.
참고문헌 (11)
- 고명진, "사무소건물 태양열급탕시스템의 LCC 최적화 시뮬레이션", 설비공학 논문집, 22(12), pp.859~866 (2010), 대한설비공학회
- 한국에너지기술연구원, "태양열설비 시스템 표준화" (2008), 지식경제부
- SolarEnergyLab, "TRNSYS16.1reference manual" (2005), UniversityofWisconsin-Madison
- GenOpt,GenericOptimization Program.UserManual,LawrenceBerkeley NationalLaboratory, "Wetter,M", ~, pp.LBNL-2077E (2009)
- "KESERegistrationNumber2009-incheon-R-004", ~ (2009)
- J.A.Duffie, "Solar EngineeringofThermalProcesses" (2006), Wiley