Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

Farzad Hamrang, Afshar Shokri, S. M. Seyed Mahmoudi, Biuk Ehghaghi and Marc A. Rosen
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Farzad Hamrang: Department of Mechanical Engineering, University of Tabriz, Tabriz 51666-14766, Iran
Afshar Shokri: Department of Mechanical Engineering, Iran University of Science and Technology, Tehran 16846–13114, Iran
S. M. Seyed Mahmoudi: Department of Mechanical Engineering, University of Tabriz, Tabriz 51666-14766, Iran
Biuk Ehghaghi: Department of Mechanical Engineering, University of Tabriz, Tabriz 51666-14766, Iran
Marc A. Rosen: Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, ON L1G 0C5, Canada

Sustainability, 2020, vol. 12, issue 19, 1-29

Abstract: Integrated biomass gasification combined cycles can be advantageous for providing multiple products simultaneously. A new electricity and freshwater generation system is proposed based on the integrated gasification and gas turbine cycle as the main system, and a steam Rankine cycle and multi-effect desalination system as the waste heat recovery units. To evaluate the performance of the system, energy, exergy, and economic analyses were performed. Also, a parametric analysis was performed to assess the effects of various parameters on the system’s performance criteria. The economic feasibility of the plant was analyzed in terms of net present value. For the base case, the performance metrics are evaluated as W . n e t = 8.347 MW , ε = 46.22 % , S U C P = 14.07 $ / GJ , and m . f w = 11.7 kg / s . Among all components of the system, the combustion chamber is the greatest contributor to the exergy destruction rate, at 3250 kW. It is shown with the parametric analysis that raising the combustion temperature leads to higher electricity and freshwater production capacity. For a fuel cost of 2 $ / GJ and an electricity price of 0.07 $ / kWh , the total net present value at the end of plant’s lifespan is 6.547 × 10 6 $ , and the payback period is 6.75 years. Thus, the plant is feasible from an economic perspective.

Keywords: cogeneration; integrated gasification combined cycle; multi-effect desalination; techno-economic analysis; net present value (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (50)

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