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Economic Analysis of Liquefied Petroleum Gas Gasification Utilizing Solar Thermal Energy

[+] Author Affiliations
Guohua Shi, Songling Wang, Youyin Jing, Yuefen Gao

North China Electric Power University, Baoding, China

Paper No. ES2009-90114, pp. 777-782; 6 pages
  • ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences
  • ASME 2009 3rd International Conference on Energy Sustainability, Volume 2
  • San Francisco, California, USA, July 19–23, 2009
  • Conference Sponsors: Advanced Energy Systems Division and Solar Energy Division
  • ISBN: 978-0-7918-4890-6 | eISBN: 978-0-7918-3851-8
  • Copyright © 2009 by ASME


Liquefied petroleum gas (LPG) is an important source of residential gas in China due to its advantages. Traditional LPG vaporizer mainly depends on electric heating as its heat source, which leads to high energy cost and can not meet the demand of energy conservation policy. For a community with 1000 families in Beijing, a new LPG gasification system utilizing solar thermal energy has been designed in this paper. This system uses hot water produced by a solar water heating system as vaporization heat source and uses an electric heater as assisted heat source. In order to understand the economic efficiency of the whole system better, we compare the economic feasibility of the new system with that of traditional LPG vaporization system using annual cost method (AC). In addition, a spreadsheet computer program is used in this paper for purpose of the sensitivity analysis of the parameters. The optimal operation life for each system is calculated. The result shows that the new system is more economical than the traditional system and is an environmentally friendly alternative.

Copyright © 2009 by ASME



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