Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7157865 | Energy Conversion and Management | 2018 | 9 Pages |
Abstract
Compact-sized organic Rankine cycle (ORC) power generators require small-scale heat exchangers to achieve high power density. The objective of this study is to investigate the effect of a Brazed Metal-foam Plate Heat Exchanger (BMPHE) in an Organic Rankine Cycle (ORC) performance parameters. This evaporator is one of the first industrial full BMPHE which is composed by Nickle-foam with 25 PPI (pore per inch). In addition, a series of the experiments have been done using conventional Brazed Plate Heat Exchanger (BPHE) to make a comprehensive comparison for both cycles. Two parameters of power density and pressure gradient are introduced to make a clear comparison in addition to ORC performance parameters. Experimental data are presented for a 1-kW scroll expander and heat source temperatures between 80 and 120â¯Â°C. The results show that although the compact evaporator (BMPHE) increases the pressure drop by factors of 1.4-2.6, the overall performance of the ORC is not adversely affected, and the power density is increased by a factor of 2.5 in maximum.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Omid Nematollahi, Gholamreza Bamorovat Abadi, Dae Yeon Kim, Kyung Chun Kim,