2024-03-29T14:21:36Z
https://tsukuba.repo.nii.ac.jp/oai
oai:tsukuba.repo.nii.ac.jp:00032153
2022-04-27T09:00:28Z
160:531
3:62:5600:2919
Study on the COP of free piston Stirling cooler (FPSC) in the anti-sublimation CO2 capture process
宋, 春風
北村, 豊
Song, Chunfeng
Lu, Jingwen
Kitamura, Yutaka
Free piston Stirling cooler (FPSC) is a promising alternative for the conventional coolers and has been applied to various fields. In the previous research, a novel cryogenic CO2 capture system based on FPSCs has been exploited. In order to enhance the cryogenic CO2 capture efficiency, the investigation on the coefficient of performance (COP) of the FPSC is carried out in this work. In detail, the influence of different materials (aluminium and copper), size of cold head (length and diameter), as well as ambient conditions (humidity and temperature) on the COP of the cryogenic system were tested. The experiment results indicate that the material of cold head should be selected at copper to increase the COP of CO2 capture system. The length and diameter of cold head should be short and thick. In addition, the low ambient temperature is benefit for the high COP. For the optimal conditions (the material was copper, length and diameter were 180 and 40 mm, respectively), the temperature of the cold head reached −140 °C, and the COP of the FPSC and the cryogenic CO2 system was 0.82 and 0.70, respectively.
journal article
Elsevier
2015-02
application/pdf
Renewable energy
74
948
954
0960-1481
AA11538138
https://tsukuba.repo.nii.ac.jp/record/32153/files/RE_74.pdf
eng
10.1016/j.renene.2014.08.071
© 2014 Elsevier Ltd.
NOTICE: this is the author’s version of a work that was accepted for publication in Renewable energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION,74, 2015, DOI:10.1016/j.renene.2014.08.071