Externally fired biomass gasification-based combined cycle plant: exergo-economic analysis. (2016)

• Record Type: Journal Article
• Authors: Mondal, P.; Ghosh, S.
• Is Part Of: International journal of exergy. Volume 20:Number 4(2016)
• Page Start: 496
• Page End: 516
• Publication Date: 2016
• Subjects: biomass gasification -- combined cycle -- exergy analysis -- exergo-economic evaluation -- electricity costs -- pressure ratio -- gas turbines -- turbine inlet temperature -- cold end temperature difference -- heat exchangers -- plant performance -- parametric optimisation; Exergy -- Periodicals; 621.402105
• Languages: English
• ISSNs: 1742-8297

Abstract

This paper reports an exergo-economic evaluation of an externally fired biomass gasification-based plant. Effects of major design and operating parameters: pressure ratio (rp ), gas turbine inlet temperature (TIT) and cold end temperature difference (CETD) of the heat exchanger (HX), on the plant performance are reported. Parametric optimisation has also been attempted. The study reveals that, higher rp and lower TIT result in higher unit product cost of the plant. Also unit product cost decreases with increase in CETD of the HX. It is further observed that levelised unit cost of electricity is minimised at a particular combination of the parameters.