Thermoeconomic assessment of an absorption refrigeration and hydrogen-fueled diesel power generator cogeneration system

Mateus Herrera, Mario David and Ponce Arrieta, Felipe Raul and Sodre, Jose Ricardo (2014) Thermoeconomic assessment of an absorption refrigeration and hydrogen-fueled diesel power generator cogeneration system. International Journal of Hydrogen Energy, 39. pp. 4590-4599.

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Abstract

The thermoeconomic assessment of a cogeneration application that uses a reciprocating diesel engine and an ammoniaewater absorption refrigeration system for electrical power and cold production from hydrogen as fuel is presented. The purpose of the assessment is to get both exergetic and exergoeconomic costs of the cogeneration plant products at different load conditions and concentrations of hydrogenediesel oil blends. The exhaust
gas of the reciprocating diesel engine is used as an energy source for an ammoniaewater absorption refrigeration system. The reciprocating diesel engine was simulated using the Gate Cycle� software, and the ammoniaewater absorption refrigeration system simulation and the thermoeconomic assessment were carried out using the Engineering Equation Solver software (EES). The results show that engine combustion is the process of higher
exergy destruction in the cogeneration system. Increased hydrogen concentration in the fuel increases the system exergetic efficiency for all load conditions. Exergy destruction in the components of the ammonia-water absorption refrigeration system is increased with
increasing load due to the rise of heat transfer. At intermediate and high loads energy efficiency is increased in the power system, and low values of unit exergetic cost and competitive specific exergoeconomic costs are noticed. The cogeneration system operation at intermediate and high engine loads was proven to be feasible.

Item Type: Article
Uncontrolled Keywords: Hydrogen Thermoeconomic assessment Diesel engine Ammonia-water absorption refrigeration system
Subjects: H800 Chemical, Process and Energy Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Systems Engineering
UoA Collections > UoA15: General Engineering
Depositing User: $ Ian McDonald
Date Deposited: 21 Dec 2016 12:08
Last Modified: 21 Dec 2016 12:08
URI: http://www.open-access.bcu.ac.uk/id/eprint/3736

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