Thermodynamics of liquid-vapour two-phase draft tubes for liquefied gas expanders

Widodo Wahyu Purwanto, Chen Hwa Chiu, Yoshitsugi Kikkawa, Atsushi Mukaiboh, Hans E. Kimmel, Eginhard Berger

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In modern refrigeration process plants the liquefaction of gases is achieved at high pressure to improve the overall efficiency of the cryogenic process. After the condensation of the refrigerated gas the pressurized liquefied gas is expanded across a liquid-vapour two-phase expander to a lower pressure suitable for storage and transportation of the liquefied gas. The expansion process generates a certain amount of vapour and the remaining liquid is cooled down. The objective is to increase the amount of liquid and to decrease the amount of vapour at the outlet of the two-phase expander. By employing a two-phase draft tube at the exit of the two-phase expander an increase in the amount of liquid is accomplished. The fluid dynamic operation and the thermodynamic performance of two-phase draft tubes is presented and analyzed.

Original languageEnglish
Title of host publicationSustainable Engineering Forum Conference, Topical Conference at the 2008 AIChE Spring National Meeting
PublisherAIChE
Pages110-128
Number of pages19
ISBN (Electronic)9781605602264
Publication statusPublished - 1 Jan 2008
EventSustainable Engineering Forum Conference, Topical Conference at the 2008 AIChE Spring National Meeting - New Orleans, United States
Duration: 6 Apr 200810 Apr 2008

Publication series

NameSustainable Engineering Forum Conference, Topical Conference at the 2008 AIChE Spring National Meeting

Conference

ConferenceSustainable Engineering Forum Conference, Topical Conference at the 2008 AIChE Spring National Meeting
CountryUnited States
CityNew Orleans
Period6/04/0810/04/08

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