Performance study on compressed air refrigeration system based on single screw expander

Yuanwei Lu, Wei He, Yuting Wu, Weining Ji, Chongfang Ma and Hang Guo

Energy, 2013, vol. 55, issue C, 762-768

Abstract: A new kind of expanders, called as single screw expander, has been developed by our team and applied to refrigeration systems. The present paper is to determine experimentally the refrigeration performance of a compressed air refrigeration system which is based on a single screw expander with 175 mm diameter rotor. Results indicate that the single screw expander has good refrigeration performances with a 70 °C odd temperature drop and an adiabatic efficiency above 65%. A high refrigerating output can be obtained at high intake pressure and high rotational speed. The coefficient of performance (COP) varies a little with increasing intake pressure at low rotational speed, but has an obvious increase with increasing intake pressure at high rotational speed; and the higher the rotational speed, the higher the COP. The maximum COP of 0.9 can be achieved. This preliminary study shows that the compressed air refrigeration system based on single screw expanders exhibits good refrigeration performances.

Keywords: Compressed air; Refrigeration performance; Single screw; Expander (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (14)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544213002466
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:55:y:2013:i:c:p:762-768

DOI: 10.1016/j.energy.2013.03.051

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 ().