 Investigating the effect of channel angle of a subsonic MHD (Magneto-Hydro-Dynamic) generator on optimum efficiency of a triple combined cycleSufia Khalili, Ali Jafarian Dehkordi and Mohammad Hossein Giahi Energy, 2015, vol. 85, issue C, 543-555 Abstract: In this research, subsonic flow in a MHD (Magneto-Hydro-Dynamic) generator has been simulated and its influence on efficiency and power generation of a triple combined cycle has been investigated. A 2D variable cross-section Faraday channel with segmented electrodes was utilized as a MHD generator model. MHD flow assumed to be ideal with low magnetic Reynolds number. The proposed triple cycle consists of an open MHD channel as a topping cycle, a gas turbine as a middle generator and a steam turbine as a bottoming cycle. A code including the equations, governing the triple cycle behavior, has been developed to analyze the performance of the combined cycle based on MHD generator. The optimum efficiency of 71.32% was attained for the triple cycle that is obviously greater than the efficiency of a combined cycle without MHD generator which was estimated to be 40.89%. Also the maximum net power output of 42.9 MW was obtained by the triple cycle based on a diverging MHD generator with 5.7° diverging angle. Keywords: MHD (Magneto-Hydro-Dynamic); Faraday MHD generator; MHD based combined cycle; Efficiency; CFD (computational fluid dynamics) of channels (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:85:y:2015:i:c:p:543-555 DOI: 10.1016/j.energy.2015.03.064 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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