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

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 6614-6620
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.6614
• Online since: November 2011
• Authors: Xin Ling Ma, Xiang Rui Meng, Xin Li Wei, Jia Chang, Hui Li
• Keywords: Analysis, Optimization, Organic Rankine Cycle (ORC), Waste Heat Recovery

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