Volume 19, Issue 6 (June 2019)                   Modares Mechanical Engineering 2019, 19(6): 1417-1428 | Back to browse issues page

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Rahimi M, Hamedi M, Amidpour M. Thermodynamic, Economic and Case Study of Synthesis Gas Using the Biomass Gasification Reactor in Distributed Generation Systems. Modares Mechanical Engineering 2019; 19 (6) :1417-1428
URL: http://mme.modares.ac.ir/article-15-20369-en.html
1- Mechanical Engineering Department, KNT University of Technology, Tehran, Iran
2- Mechanical Engineering Department, KNT University of Technology, Tehran, Iran , hamedi@kntu.ac.ir
3- Energy Systems Department, KNT University of Technology, Tehran, Iran
Abstract:   (3764 Views)

The present paper presents the results of the thermodynamic and economical study of the use of synthesis gas from a biomass gasification reactor instead of natural gas at a synchronous power plant. First, the analysis of the system at the Pars factory, which is fed with natural gas, was done, and the use of a for the synthesis of natural gas for the replacement of natural gas is investigated. The results of thermodynamic analysis indicate that the increase in the percentage of biomass fuel moisture had a slight effect on CH4 and N2 in synthetic gas, but it has a relatively modest effect on CO and CO2 thermal value. By using a reactor, a natural gas consumption of 4468316cubic meters per year will be saved. The results of economic analysis indicate that due to the price of natural gas of 700Rials per cubic meter, the purchase price of electricity is 650Rials per kWh, the number of years of operation 7 years and the profit rate of 7%, the net present value is at the zero frontier and this investment is at the threshold of being economically feasible. But if the rate of profit is to be raised, the lower the natural gas purchase price, or of electricity purchase, the improved system from the economic point of view is not profitable. In this regard, at a profit rate of 7%, the price of the biodegradable fuel is at most equal to 100,000 rials per ton, the net present value is at the zero frontier and the investment will have economic justification, But in larger quantities of biomass, investment will not be economically profitable.
 

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Article Type: Original Research | Subject: Renewable Energy
Received: 2018/05/1 | Accepted: 2018/11/3 | Published: 2019/06/1

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