Theoretical modelling of a dynamic solar thermal desalination unit with a fluid piston engine

Belgasim, Basim and Mahkamov, Khamid (2011) Theoretical modelling of a dynamic solar thermal desalination unit with a fluid piston engine. Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden, 57 (14). pp. 3867-3872. ISSN 1650-3686

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Abstract

Results of theoretical simulations of the steady-state operation of the dynamic solar thermal desalination unit with a fluid piston are presented in this paper. A laboratory prototype of a dynamic thermal water distillation unit was developed and it was built around an engine with fluid pistons. In the calculation scheme, the internal circuit of the desalination unit was split into several control volumes, namely the evaporator, the condenser and the cylinder. The lumped parameter mathematical model was derived based on the differential energy and mass conservation equations written for each of the control volumes and describing heat and mass transfer processes taking place during water evaporation and condensation under the cyclic variation of the pressure and temperature inside the system when the engine operates. The solution of the set of governing equations produces information on the variation of temperatures and pressure inside the system over the thermodynamic cycle and on the water desalination capacity of the unit.

Item Type:	Article
Uncontrolled Keywords:	Solar water desalination, mathematical modelling
Subjects:	H300 Mechanical Engineering H800 Chemical, Process and Energy Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Sarah Howells
Date Deposited:	25 Sep 2012 11:26
Last Modified:	12 Oct 2019 19:07
URI:	http://nrl.northumbria.ac.uk/id/eprint/9171

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