How to evaluate the performance of sub-critical Organic Rankine Cycle from key properties of working fluids by group contribution methods?

2020 ◽  
Vol 221 ◽  
pp. 113204 ◽  
Author(s):  
Yannan Peng ◽  
Wen Su ◽  
Naijun Zhou ◽  
Li Zhao
Keyword(s):  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Group Contribution ◽  
Working Fluids ◽  
Group Contribution Methods

scholarly journals Comparative investigation of working fluids for an organic Rankine cycle with geothermal water

2015 ◽  
Vol 36 (2) ◽  
pp. 75-84
Author(s):  
Yan-Na Liu ◽  
Song Xiao
Keyword(s):  
Power Generation ◽  
Pressure Ratio ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Comparative Investigation ◽  
Geothermal Water ◽  
Thermodynamic Investigation ◽  
Working Fluids ◽  
Temperature Heat ◽  
Input Pressure

AbstractIn this paper, the thermodynamic investigation on the use of geothermal water (130 °C as maximum) for power generation through a basic Rankine has been presented together with obtained main results. Six typical organic working fluids (i.e., R245fa, R141b, R290, R600, R152a, and 134a) were studied with modifying the input pressure and temperature to the turbine. The results show that there are no significant changes taking place in the efficiency for these working fluids with overheating the inlet fluid to the turbine, i.e., efficiency is a weak function of temperature. However, with the increasing of pressure ratio in the turbine, the efficiency rises more sharply. The technical viability is shown of implementing this type of process for recovering low temperature heat resource.

A new understanding on thermal efficiency of organic Rankine cycle: Cycle separation based on working fluids properties

2018 ◽  
Vol 157 ◽  
pp. 169-175 ◽  
Author(s):  
Yongzhen Wang ◽  
Jun Zhao ◽  
Guibing Chen ◽  
Shuai Deng ◽  
Qingsong An ◽  
...  
Keyword(s):  
Thermal Efficiency ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluids

scholarly journals Evaluation of an Organic Rankine Cycle Using a Non-Imaging Solar Concentrator for Different Working Fluids

2015 ◽  
Vol 3 (3) ◽  
pp. 1-7 ◽  
Author(s):  
Abid Ustaoğlu ◽  
Junnosuke Okajima ◽  
Xin-rong Zhang ◽  
Shigenao Maruyama
Keyword(s):  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Solar Concentrator ◽  
Working Fluids

scholarly journals Comparative analysis of working fluids for efficient waste heat recovery

2021 ◽  
Vol 2057 (1) ◽  
pp. 012102
Author(s):  
D Ye Lola ◽  
A Yu Chirkov ◽  
Yu A Borisov
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Exhaust Gas ◽  
Water Cooling ◽  
Working Fluids ◽  
Gas Recovery ◽  
Recovery System

Abstract The paper analyzes the implementation of plants with an organic Rankine cycle (ORC) on the example of the circuit of the regenerative gas turbine unit and exhaust gas recovery system of the compressor system of the gas-compressor unit. The theoretically achievable values of power generated by the ORC-installations are determined. A criterion is presented for comparing the working fluids according to the efficiency of use in ORC-installations. To evaluate the overall characteristics of the system, the parameters of heat exchangers for air and water cooling were determined. As a result, it is concluded that the use of ORC-installations allows to utilize up to 23% of the heat of exhaust gases (convert into useful work).

scholarly journals How to give a full play to the advantages of zeotropic working fluids in organic Rankine cycle (ORC)

2019 ◽  
Vol 158 ◽  
pp. 1591-1597 ◽  
Author(s):  
Weicong Xu ◽  
Shuai Deng ◽  
Yue Zhang ◽  
Dongpeng Zhao ◽  
Li Zhao
Keyword(s):  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluids
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