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유기랭킨사이클을 이용한 병렬 열병합 발전시스템의 열역학적 이론 성능 특성Theoretical Characteristics of Thermodynamic Performance of Combined Heat and Power Generation with Parallel Circuit using Organic Rankine Cycle
- Other Titles
- Theoretical Characteristics of Thermodynamic Performance of Combined Heat and Power Generation with Parallel Circuit using Organic Rankine Cycle
- Authors
- 김경훈
- Issue Date
- 2011
- Publisher
- 한국태양에너지학회
- Keywords
- Organic Rankine cycle; Combined heat and power; Parallel circuit; Patel-Teja equation of state; 유기랭킨사이클; 열병합생산; 병렬연결; Patel-Teja상태방정식
- Citation
- 한국태양에너지학회 논문집, v.31, no.6, pp 49 - 56
- Pages
- 8
- Journal Title
- 한국태양에너지학회 논문집
- Volume
- 31
- Number
- 6
- Start Page
- 49
- End Page
- 56
- ISSN
- 1598-6411
- Abstract
- Inthisstudyanovelcogenerationsystem drivenbylow-temperaturesourcesatatemperaturelevelbelow 190℃isinvestigatedbyfirstandsecondlawsofthermodynamics.Thesystem consistsofOrganicRankineCycle(ORC)and an additionalheatgeneration as a parallelcircuit.Seven working fluids ofR143a,R22,R134a,R152a,iC4H10(isobutane),C4H10(butane),andR123aareconsideredinthiswork.Maximum massflow rateofaworking fluidrelativetothatofthesourcefluidandoptimum turbineinletpressureareconsideredtoextractmaximum powerfrom thesource.Resultsshow thatduetoacombinedheatandpowergeneration,boththeefficienciesby firstandsecondlawscanbesignificantlyincreasedincomparisontoapowergeneration,however,thesecondlaw efficiencyismoreresonableintheinvestigationofcogenerationsystems.Resultsalsoshow thattheworkingfluid forthemaximum system efficiencydependsonthesourcetemperature.
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