Development of an In-House Code for Dry Tower of Heat Transfer Analysis in Hydrogen Purification System

Sooin Kwon, Seongyong Eom (), Jang-Sik Yang () and Gyungmin Choi ()
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Sooin Kwon: School of Mechanical Engineering, Pusan National University, Busandaehak-ro 63beon-gil 2, Busan 46241, Geumjeong-gu, Republic of Korea
Seongyong Eom: School of Mechanical Engineering, Pusan National University, Busandaehak-ro 63beon-gil 2, Busan 46241, Geumjeong-gu, Republic of Korea
Jang-Sik Yang: Research Institute of Mechanical Technology, Pusan National University, Busandaehak-ro 63beon-gil 2, Busan 46241, Geumjeong-gu, Republic of Korea
Gyungmin Choi: School of Mechanical Engineering, Pusan National University, Busandaehak-ro 63beon-gil 2, Busan 46241, Geumjeong-gu, Republic of Korea

Energies, 2023, vol. 16, issue 13, 1-13

Abstract: The purity of hydrogen finally purified in the hydrogen purification process system is greatly influenced by the uniformity of the purification temperature of the dry tower. An in-house code that can be easily used by field designers has been developed to predict the capacity of the appropriate heat source and the time to reach the temperature of the dry tower. A code was developed to predict unsteady heat transfer using VBA. To verify the developed code, a grid independence test was performed, and finally, calculations were performed for two cases. The factor that influences the temperature history over time is the precise determination of values for the density, specific heat, and thermal conductivity of the heterogeneous materials composing the dryer tower. It was confirmed that the developed code well describes the actual test trend data of the regeneration process of adsorption and desorption, and it is judged that the code developed in the design process of various capacity systems will be effectively applied to the heat capacity calculation in the future.

Keywords: hydrogen; in-house code; adsorption; desorption; dry tower; VBA (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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