Flow and heat transfer in heat recovery steam generators

N. Hegde, I. Han, Taewoo Lee, R. P. Roy

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Computational simulations of flow and heat transfer in heat recovery steam generators (HRSGs) of vertical-and horizontal-tube designs are reported. The main objective of the work was to obtain simple modifications of their internal configuration that render the flow of combustion gas more spatially uniform. The computational method was validated by comparing some of the simulation results for a scaled-down laboratory model with experimental measurements in the same. Simulations were then carried out for two plant HRSGs-without and with the proposed modifications. The results show significantly more uniform combustion gas flow in the modified configurations. Heat transfer calculations were performed for one superheater section of the vertical-tube HRSG to determine the effect of the configuration modification on heat transfer from the combustion gas to the steam flowing in the superheater tubes.

Original languageEnglish (US)
Pages (from-to)232-242
Number of pages11
JournalJournal of Energy Resources Technology, Transactions of the ASME
Issue number3
StatePublished - Sep 2007

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Geochemistry and Petrology


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