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Two solar- geothermal enhanced biomass-driven combined cycles to produce power, heating, and fresh water; Exergy analysis
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Maliheh Pashapour *   |
| Department of Mechanical Engineering, Naghadeh Branch, Islamic Azad University, Naghadeh, Iran , m.pashapour@urmia.ac.ir |
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Abstract: (28 Views) |
In this article, a combined cycle for multiple production of power, steam and fresh water is proposed and its outputs are compared with a basic cycle. The main fuel of both systems is biomass, which burns in the gas turbine cycle and produces power. Then the waste heat of this cycle is recycled by an organic Rankine cycle. A solar cycle with the flat plate collectors is used to preheat the organic fluid before entering the ORC’s evaporator. Also, the proposed cycle has a geothermal cycle which, in addition to reheating the organic Rankine cycle, is used to generate steam in a steam generator and run a steam turbine. Both the proposed and basic systems are equipped with a reverse osmosis desalination unit, whose high-pressure pump power is supplied from organic and steam turbines, respectively. The designs have been analyzed and simulated in term of exergy. Compared to the basic system, the proposed system has 34%, 131%, 100%, and 49.32% more output power, purified water, steam, and exergy efficiency, respectively.
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Article number: 4 |
| Keywords: Exergy, gas turbine, biomass, solar, geothermal, reverse osmosis desalination |
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Full-Text [PDF 879 kb]
(25 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2024/02/17 | Accepted: 2024/05/30 | Published: 2024/09/18
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