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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5558

Title: Recovery of flue gas energy in heat integrated IGCC power plants using the contact economizer system
Authors: Madzivhandila, V
Majozi, T
Zhelev, T
Keywords: Contact economizer system
Flue gas
Mickley’s graphical technique
IGCC
Issue Date: Oct-2010
Citation: Madzivhandila, V, Majozi, T and Zhelev, T. Recovery of flue gas energy in heat integrated IGCC power plants using the contact economizer system. 13th Asia Pacific Confederation of Chemical Engineering Congress (APCChE 2010), Taipei, Taiwan, 5-8 October 2010
Series/Report no.: Workflow;5079
Abstract: In this work, the contact economizer system is used to recover low potential heat from the gas turbine exhaust (flue gas) stream of a heat integrated IGCC plant adopted from previous studies. Recovery of this heat was demonstrated to be capable of further increasing the thermal efficiency of the plant. Application of Mickley’s graphical technique for dehumidification in a contact economizer system following a slightly different procedure that allows calculation of the exact ratio between the liquid-phase heat transfer coefficient and gas-phase mass transfer coefficient demonstrated a possible increase in thermal efficiency from 54% to 55%. This method however is incapable of obtaining the optimum thermal efficiency due to the monotonous relationship between the boiler feed water temperature and the thermal efficiency of the plant.
Description: 13th Asia Pacific Confederation of Chemical Engineering Congress (APCChE 2010), Taipei, Taiwan, 5-8 October 2010
URI: http://hdl.handle.net/10204/5558
Appears in Collections:Advanced mathematical modelling and simulation
General science, engineering & technology

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