Experimental and simulation investigation on the heat exchangers in an ORC under various heat source/sink conditions

Junwei Luo, Pei Lu, Kaihuang Chen, Xianglong Luo, Jianyong Chen, Yingzong Liang, Zhi Yang and Ying Chen

Energy, 2023, vol. 264, issue C

Abstract: Investigation on the operation behavior of heat exchanger under various operation conditions is essential in improving the life-span performance of an organic Rankine cycle (ORC). In the present study, the experimental study on an ORC under different heat source/sink combination conditions is conducted. A numerical simulation model and a solution procedure for the evaporator and condenser are developed and validated. Through the combination of simulation and experimental investigation, the heat transfer characteristics of the heat exchangers under various off-design conditions are achieved. The variation of heat source heat transfer coefficient (HTC), working fluid HTC, heat sink HTC, overall HTC, equivalent overall HTC, and area allocation of heat exchanger are achieved zone by zone from the developed simulation model. The correlation for the evaporation pressure and condensation pressure are developed and the simulation on the heat exchangers under conditions different to the experimental conditions are conducted. Exergy analysis is conducted to study the exergy construction allocation of heat exchangers under off-design conditions. The findings of the present study are beneficial to understand the operation behavior of the heat exchanger in the context of ORC and aid the design of ORC under varying operation conditions.

Keywords: Organic Rankine cycle; Experiment; Heat exchanger; Simulation; Exergy analysis (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544222030754
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:264:y:2023:i:c:s0360544222030754

DOI: 10.1016/j.energy.2022.126189

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().