Work

Performance analysis of a high-temperature heat pump based on a cascaded reverse Brayton and vapor compression cycle

Year: 2024

Type: article

Abstract: Heat pumps are utilized to recover waste heat in industries and transfer it to other processes at elevated temperatures. Efforts are directed towards enhancing the heat pump’s ability to achieve high heat sink temperatures, often surpassing 100 oC, termed as high-temperature heat pumps (HTHP). Additionally, concerns over the global warming potential (GWP) of refrigerants used in these heat pumps have led researchers to explore new environmentally friendly alternatives aiming to maintain functionality while minimizing environmental impact. Within the scope of this paper, an investigation has been carried out that examines the design and selection of a heat pump for an industrial project requiring the processing of waste heat from 100 °C to 300 °C. It evaluates different architectures including a reverse Brayton cycle, a multi-stage expansion reverse Brayton cycle, and a cascaded reverse Brayton cycle with a vapor compression cycle. It also observes the performance of the cascaded cycle under the usage of different low GWP refrigerants. Performance comparison was made resulting in the cascade cycle giving a 4.7% and 13.4% improvement when compared to the multi-stage expansion and simple reverse Brayton cycle, respectively.

Source: Energy Reports

DOI: 10.1016/j.egyr.2024.12.009

Authors: Mohammad Ali Yaqteen, Yoong Chung, Chan Ho Song, Jin Sub Kim

Institutions: Korea Institute of Machinery & Materials, Korea University of Science and Technology

Language: English

Topic: Refrigeration and Air Conditioning Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: gold

Estimated APC paid: $2,700