Conventional and advanced exergoeconomic assessments of a CCHP and MED system based on solid oxide fuel cell and micro gas turbine. (17th April 2020)

• Record Type: Journal Article
• Authors: You, Huailiang; Han, Jitian; Liu, Yang
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 21(2020)
• Page Start: 12143
• Page End: 12160
• Publication Date: 2020-04-17
• Subjects: CCHP -- Solid oxide fuel cell -- Micro gas turbine -- Multi-effect desalination -- Advanced exergoeconomic analysis; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.02.138
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: This paper presents an assessment of a combined cooling, heating and power (CCHP) and multi-effect desalination (MED) system based on SOFC/MGT by conventional and advanced exergoeconomic analyses. The conventional exergy analysis can reveal the sources of irreversibility in the system. The largest exergy destruction occurs in after burner followed by SOFC and MED, accounting for 20.079%, 12.986%, 12.907%, respectively. In the advanced analysis, the exergy destruction, exergy destruction cost and investment cost are split into avoidable/unavoidable and endogenous/exogenous parts to investigate the real potentials of exergy and economic performances. The advanced analysis results indicate that the major exergy destructions of most components are endogenous parts with inverter, MGT and air compressor owning the most potentials to reduce exergy destructions. The modified exergy efficiency of each component in the advanced analysis is higher than the conventional one. Finally, three possible strategies are suggested to reduce the avoidable exergy destruction cost rates. Highlights: A novel CCHP and multi-effect desalination system based on SOFC/MGT is developed. Conventional and advanced exergy and exergoeconomic analyses are performed. Modified exergy efficiency of each component is higher than the conventional one. Strategies are suggested to reduce avoidable exergy destruction cost rates.