Performance analysis and optimization of a hydrogen liquefaction system assisted by geothermal absorption precooling refrigeration cycle

Abstract The present paper deals with the hydrogen liquefaction with absorption precooling cycle assisted by geothermal water is modeled and analyzed. Uses geothermal heat in an absorption refrigeration process to precool the hydrogen gas is liquefied in a liquefaction cycle. High-temperature geothermal water using the absorption refrigeration cycle is used to decrease electricity work consumption in the gas liquefaction cycle. The thermoeconomic optimization procedure is applied using the genetic algorithm method to the hydrogen liquefaction system. The objective is to minimize the unit cost of hydrogen liquefaction of the composed system. Based on optimization calculations, hydrogen gas can be cooled down to −30 °C in the precooling cycle. This allows the exergetic cost of hydrogen gas to be reduced to be 20.16 $/GJ (2.42 $/kg LH2). The optimized exergetic cost of liquefied hydrogen is 4.905 $/GJ (1.349 $/kg LH2), respectively.

[1]  Mehmet Kanoglu,et al.  Thermoeconomic cost evaluation of hydrogen production driven by binary geothermal power plant , 2015 .

[2]  Mehmet Kanoglu,et al.  Economics of hydrogen production and liquefaction by geothermal energy , 2012 .

[3]  Petter Nekså,et al.  Exergy analysis on the simulation of a small-scale hydrogen liquefaction test rig with a multi-component refrigerant refrigeration system , 2010 .

[4]  C. R. Baker,et al.  A study of the efficiency of hydrogen liquefaction. [jet aircraft applications] , 1976 .

[5]  U. Cardella,et al.  Process optimization for large-scale hydrogen liquefaction , 2017 .

[6]  M. Bayrak,et al.  Effects of reactor design on TiFe‐hydride's hydrogen storage , 2013 .

[7]  Ibrahim Dincer,et al.  Geothermal energy use in hydrogen liquefaction , 2007 .

[8]  Ibrahim Dincer,et al.  Cost assessment and evaluation of various hydrogen delivery scenarios , 2017 .

[9]  Ceyhun Yilmaz,et al.  A case study: Exergoeconomic analysis and genetic algorithm optimization of performance of a hydrogen liquefaction cycle assisted by geothermal absorption precooling cycle , 2018, Renewable Energy.

[10]  Petter Nekså,et al.  Development of large-scale hydrogen liquefaction processes from 1898 to 2009 , 2010 .

[11]  C. Frangopoulos.  Functional decomposition for optimal design of complex thermal systems , 1988 .

[12]  S. A. Sherif,et al.  An economic analysis of three hydrogen liquefaction systems , 1998 .

[13]  Mehmet Kanoglu,et al.  Geothermal energy use in absorption precooling for Claude hydrogen liquefaction cycle , 2016 .

[14]  Klaus D. Timmerhaus,et al.  Cryogenic Process Engineering , 2013 .

[15]  Mehmet Kanoglu,et al.  Thermodynamic analysis of models used in hydrogen production by geothermal energy , 2010 .

[16]  M. J. Moran,et al.  Thermal design and optimization , 1995 .

[17]  I. Dincer,et al.  Analysis and assessment of a novel hydrogen liquefaction process , 2017 .

[18]  M. Mehrpooya,et al.  A novel hydrogen liquefaction process configuration with combined mixed refrigerant systems , 2017 .

[19]  M. Bayrak,et al.  An Experimental Study on Hydrogen Storage Capabilities Improvement of the TiFe-H2 , 2012 .

[20]  M. Mehrpooya,et al.  Introducing and energy analysis of a novel cryogenic hydrogen liquefaction process configuration , 2017 .

[21]  I. Dincer,et al.  Analysis and assessment of an advanced hydrogen liquefaction system , 2018 .

[22]  U. Cardella,et al.  Roadmap to economically viable hydrogen liquefaction , 2017 .

[23]  Wolfgang Foerg,et al.  History of cryogenics: the epoch of the pioneers from the beginning to the year 1911 , 2002 .

[24]  Randall F. Barron,et al.  Effect of Heat Transfer from Ambient on Cryogenic Heat Exchanger Performance , 1984 .

[25]  J. S. Rowlinson,et al.  James Joule, William Thomson and the concept of a perfect gas , 2010, Notes and Records of the Royal Society.