Testing and Thermodynamic Analysis of Low-Grade Heat Power Generation System Using Organic Rankine Cycle

2007 ◽  
pp. 93-98 ◽  
Author(s):  
Wei Gu ◽  
Yiwu Weng ◽  
Guangyi Cao
Keyword(s):  
Power Generation ◽  
Thermodynamic Analysis ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Low Grade ◽  
Heat Power ◽  
Generation System ◽  
Power Generation System ◽  
Low Grade Heat

Analysis and Optimization of ORC for Low-Temperature Waste Heat Power Generation

2011 ◽  
Vol 383-390 ◽  
pp. 6614-6620
Author(s):  
Xin Ling Ma ◽  
Xiang Rui Meng ◽  
Xin Li Wei ◽  
Jia Chang ◽  
Hui Li
Keyword(s):  
Power Generation ◽  
Low Temperature ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluid ◽  
Inlet Temperature ◽  
Heat Power ◽  
Generation System ◽  
Power Generation System

This paper presents energy analysis, thermodynamic calculation and exergy analysis for waste heat power generation system of Organic Rankine Cycle based on the first and second laws of thermodynamics. In order to improve system performance, for low-temperature waste heat of 120°C and R245fa organic working fluid, using Aspen Plus software conducted simulation, optimization and improvement. Results from these analyses show that decreasing the expander inlet temperature, increasing inlet pressure of the expander, and adding regenerative heater can increase thermal and exergy efficiencies, at the same time reduce system irreversibility.

Experimental studies on a combined refrigeration/power generation system activated by low-grade heat

Energy ◽  
2014 ◽  
Vol 74 ◽  
pp. 59-66 ◽  
Author(s):  
Wei Han ◽  
Qiang Chen ◽  
Liuli Sun ◽  
Sijun Ma ◽  
Ting Zhao ◽  
...  
Keyword(s):  
Power Generation ◽  
Experimental Studies ◽  
Low Grade ◽  
Generation System ◽  
Power Generation System ◽  
Low Grade Heat

scholarly journals Operation Analysis of Organic Rankine Cycle under Variable Conditions and Comparison confirmation of simulation calculation

2019 ◽  
Vol 136 ◽  
pp. 03031
Author(s):  
Chen Xiaoqing ◽  
Jiang Weiting ◽  
Cao Xianchang ◽  
Zhang Li’ang ◽  
Chen Chi ◽  
...  
Keyword(s):  
Power Generation ◽  
Calculation Method ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Generation System ◽  
Operation Analysis ◽  
Simulation Calculation ◽  
Power Generation System ◽  
And Control

The initial simulation calculation of the ORC power generation system was carried out using the software Aspen Plus, and the simulation data matched with the design conditions were obtained. According to the specific structure of the evaporator and superheater in the ORC power generation system and the characteristics of the software Aspen EDR, a new simulation calculation method is proposed: structural simulation calculation method. The calculation method and the direct simulation calculation method are used to carry out simulation comparison to find out the regularity of the change of waste heat resources, and it is convenient to further analyze and control the ORC power generation system.

Thermodynamic analysis of waste heat power generation system

Energy ◽  
2010 ◽  
Vol 35 (7) ◽  
pp. 2824-2835 ◽  
Author(s):  
Jiangfeng Guo ◽  
Mingtian Xu ◽  
Lin Cheng
Keyword(s):  
Power Generation ◽  
Thermodynamic Analysis ◽  
Waste Heat ◽  
Heat Power ◽  
Generation System ◽  
Power Generation System

Experimental Study of the Influence of Light Intensity on Solar Organic Rankine Cycle Power Generation System

2016 ◽  
Vol 138 (4) ◽  
Author(s):  
Yuping Wang ◽  
Lei Tang ◽  
Yiwu Weng
Keyword(s):  
Power Generation ◽  
Fluid Flow ◽  
Light Intensity ◽  
Turning Point ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluid ◽  
Experimental Facility ◽  
Generation System ◽  
Power Generation System

A low-temperature (<120 °C) solar organic Rankine cycle (ORC) power generation experimental facility is designed and built. The influence of light intensity on the system performance is investigated using the experimental facility. The results indicate that the system efficiency can reach 2.2%. The temperature of heat transfer fluid (HTF) decreases linearly with light intensity (I). However, both system efficiency and thermoelectric efficiency first decrease linearly and then drop sharply as I decreases at working fluid flow rates (Vwf) of 200 and 160 L/hr, while they only decrease slightly with I at Vwf of 120 L/hr. The light intensity of the turning point is 824 W/m2 at Vwf of 200 L/hr, which corresponds to an HTF temperature of 75 °C. In addition, it is found that the influence of light intensity on the performance of ORC becomes stronger for higher working fluid flow rate. Moreover, the light intensity and HTF temperature at the turning point increase with working fluid flow rate. The experimental results are of great significance for the design and operation of low-temperature solar ORC power generation system.

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