Thermo-Economic Performance of Organic Rankine Cycle-Based Waste Heat Recovery for Power Generation at a Wide Range of Operating Conditions
Abstract - 206
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Keywords

RORC
BORC
Organic rankine cycle
Economic assessment
Technical performance

How to Cite

1.
Gerutu GB, Kivugo RO, Lujaji F, Chombo PV. Thermo-Economic Performance of Organic Rankine Cycle-Based Waste Heat Recovery for Power Generation at a Wide Range of Operating Conditions. Glob. J. Energ. Technol. Res. Updat. [Internet]. 2023 Nov. 14 [cited 2024 May 20];10:1-23. Available from: https://avantipublishers.com/index.php/gjetru/article/view/1422

Abstract

This study assesses the performance of organic Rankine cycle-based waste heat recovery systems under different working fluids and operating conditions. The basic ORC (BORC) and ORC with recuperator (RORC) are investigated for power generation and economy using toluene and benzene. Thermodynamic and economic indicators are studied at various expander inlet temperatures, expander inlet pressure, evaporation temperature, and condensation temperature. RORC achieves higher ηth by reducing heat source in the evaporator whereas BORC recovers more waste heat and improves Pnet. With toluene, BORC improves Pnet when increasing the expander inlet temperature and pressure. The lowest LCOE of 0.0532 US$/kWh is from BORC operated with toluene at a Pnet of 349 kW and decreases with an increase in expander inlet temperature. The addition of a recuperator adds to the costs of initial investment and LCOE and slightly improves the performance of the ORCs for waste heat recovery.

https://doi.org/10.15377/2409-5818.2023.10.1
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Copyright (c) 2023 Gerutu B. Gerutu, Ramadhani O. Kivugo, Frank Lujaji, Pius V. Chombo