Thermodynamic design of a methane liquefaction system based on reversed-Brayton cycle.
Author(s) : CHANG H. M., CHUNG M. J., KIM M. J., et al.
Type of article: Article
Summary
A thermodynamic design is performed for reversed-Brayton refrigeration cycle to liquefy methane separated from landfill gas (LFG) in distributed scale. Objective of the design is to find the most efficient operating conditions for a skid-mount type of liquefaction system that is capable of LNG production at 160 l/h. Special attention is paid on liquefying counterflow heat exchanger, because the temperature difference between cold refrigerant and methane is smallest at the middle of heat exchanger, which seriously limits the overall thermodynamic performance of the liquefaction system. Nitrogen is selected as refrigerant, as it is superior to helium in thermodynamic efficiency. In order to consider specifically the size effect of heat exchangers, the performance of plate-fin heat exchangers is estimated with rigorous numerical calculations by incorporating a commercial code for properties of methane and the refrigerant. Optimal conditions in operating pressure and heat exchanger size are presented and discussed for prototype construction under a governmental project in Korea. [Reprinted with permission from Elsevier. Copyright, 2008].
Details
- Original title: Thermodynamic design of a methane liquefaction system based on reversed-Brayton cycle.
- Record ID : 2009-2232
- Languages: English
- Source: Cryogenics - vol. 49 - n. 6
- Publication date: 2009/06
- DOI: http://dx.doi.org/10.1016/j.cryogenics.2008.08.006
Links
See other articles in this issue (2)
See the source
Indexing
-
Themes:
LNG and LPG;
Applications of liquified gases - Keywords: Methane; Liquefaction; Brayton; Design; Plate-fin; Performance; LNG; Thermodynamic cycle; Cryogenics; Heat exchanger
-
RECUPERATION DES FRIGORIES DU GNL AU TERMINAL M...
- Author(s) : KLEITZ A., MAISONNIER J. N.
- Date : 1981/10
- Languages : French
- Source: Rev. gén. Froid - vol. 71 - n. 10
View record
-
COMPARAISON DE L'EXPLOITATION DES ECHANGEURS BO...
- Date : 1983/05/15
- Languages : French
View record
-
Technical efforts focus on cutting LNG plant co...
- Author(s) : AOKI I., KIKKAWA Y.
- Date : 1995/07/03
- Languages : English
- Source: Oil Gas J. - vol. 93 - n. 1
View record
-
OFFSHORE LIQUEFACTION OF NATURAL GAS WITH LIQUI...
- Author(s) : BACH W.
- Date : 1990
- Languages : German
- Source: Ber. Tech. Wiss./Rep. Sci. Technol. - n. 64/n. 47
View record
-
LNG-relevant experience with plate-fin exchangers.
- Author(s) : CLARKE R. H.
- Date : 2003/08/17
- Languages : English
- Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
- Formats : PDF
View record