ScholarLens Back to search
2002•The proceedings of the JSME annual meetingOpen access

Gas Engine Stirling Heat Pump System

Norio Obata, Sumio Yagyu, Naotsugu Isshiki

Open full text 0 citations

Abstract

KUBOTA has been developing a gas engine-driven Stirling heat pump (STHP) system using both engine shaft power and engine exhaust heat. This STHP is a heat-assisted Stirling heat pump and is constructed as two sets of three-cylinder machines, each a combination of two Stirling sub-systems; one a power producer and one a heat pump. This paper describes the system schematics and the system performances. The tests were performed at concurrent cooling and heating operations, fueling methanol reformed gas (CO+2H_2). A cooling capacity of 4.8kW at 280K and a heating capacity of 9.1kW at 318K were attained, and the total COP was reached to 2.1 at the input fuel basis. It was shown by the performance tests that the STHP had high COP and could construct a high performance CFC-free heat pump system.

Open-access reader

About this research paper

What this paper is about

KUBOTA has been developing a gas engine-driven Stirling heat pump (STHP) system using both engine shaft power and engine exhaust heat. This STHP is a heat-assisted Stirling heat pump and is constructed as two sets of three-cylinder machines, each a combination of two Stirling sub-systems; one a power producer and one a heat pump. This paper describes the system schematics and the system performances. The tests were performed at concurrent cooling and heating operations, fueling methanol reformed gas (CO+2H_2). A cooling capacity of 4.8kW at 280K and a heating capacity of 9.1kW at 318K were attained, and the total COP was reached to 2.1 at the input fuel basis. It was shown by the performance tests that the STHP had high COP and could construct a high performance CFC-free heat pump system.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

KUBOTA has been developing a gas engine-driven Stirling heat pump (STHP) system using both engine shaft power and engine exhaust heat. This STHP is a heat-assisted Stirling heat pump and is constructed as two sets of three-cylinder machines, each a combination of two Stirling sub-systems; one a power producer and one a heat pump. This paper describes the system schematics and the system performances. The tests were performed at concurrent cooling and heating operations, fueling methanol reformed gas (CO+2H_2). A cooling capacity of 4.8kW at 280K and a heating capacity of 9.1kW at 318K were attained, and the total COP was reached to 2.1 at the input fuel basis. It was shown by the performance tests that the STHP had high COP and could construct a high performance CFC-free heat pump system.

Key concepts: Stirling engine, Heat pump, Stirling cycle, Schematic, Heat engine, Mechanical engineering, Engineering, External combustion engine

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Gas Engine Stirling Heat Pump System — Research Paper | ScholarLens