Modelling of organic rankine cycle for waste heat recovery process in supercritical condition

Chowdhury, Jahedul Islam, Nguyen, Bao Kha, Thornhill, David, Douglas, Roy and Glover, Stephen (2015) Modelling of organic rankine cycle for waste heat recovery process in supercritical condition. International Conference on Mechanical, Materials and Mechatronics Engineering, Madrid, Spain, 26-27 March 2014. Published in: International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering. 9 (3) 477-482. World Academy of Science, Engineering and Technology

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Abstract

Organic Rankine Cycle (ORC) is the most commonly used method for recovering energy from small sources of heat. The investigation of the ORC in supercritical condition is a new research area as it has a potential to generate high power and thermal efficiency in a waste heat recovery system. This paper presents a steady state ORC model in supercritical condition and its simulations with a real engine’s exhaust data. The key component of ORC, evaporator, is modelled using finite volume method, modelling of all other components of the waste heat recovery system such as pump, expander and condenser are also presented. The aim of this paper is to investigate the effects of mass flow rate and evaporator outlet temperature on the efficiency of the waste heat recovery process. Additionally, the necessity of maintaining an optimum evaporator outlet temperature is also investigated. Simulation results show that modification of mass flow rate is the key to changing the operating temperature at the evaporator outlet.

Item Type: Conference Proceedings
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology
T Technology > TJ Mechanical engineering and machinery > TJ0163.26 Energy conservation
T Technology > TJ Mechanical engineering and machinery > TJ0212 Control engineering systems. Automatic machinery (General)
T Technology > TJ Mechanical engineering and machinery > TJ0751 Miscellaneous motors and engines Including gas, gasoline, diesel engines
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL0001 Motor vehicles.Cycles
Depositing User: Bao Kha Nguyen
Date Deposited: 17 Jul 2017 09:30
Last Modified: 17 Jul 2017 09:30
URI: http://sro.sussex.ac.uk/id/eprint/69278

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