Enhancement efficiency of organic Rankine cycle by using sorption system

作者: Nattaporn Chaiyat , Yiayang Wakaiyang , Xangpheuak Inthavideth

DOI: 10.1016/J.APPLTHERMALENG.2017.05.028

关键词:

摘要: Abstract This paper focuses a method to enhance an organic Rankine cycle (ORC) efficiency by using the sorption systems (absorption and adsorption) for reducing ORC condenser temperature. Energy efficiency, exergy levelized electricity cost (LEC) are used evaluate optimal combined unit. Testing data from 25 kWe R-245fa prototype, 1 TR water-LiBr absorption chiller water-silica gel adsorption refrigeration tested analyzed performance curve of each technology predict thermal ORC-sorption units at various operating conditions. Projection integrating unit represent better energy efficiencies, when temperature is decreased. The ORC-absorption efficiencies in terms increase 7.22%, while ORC-adsorption system improve 12.46% compared with normal efficiencies. In economic impact, LEC 0.1145 USD/kW h, which higher than 0.1088 USD/kW h 0.1043 USD/kW h, respectively, chilled water output 7 °C. Thus, it could be concluded that technique generation process cost.

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