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

Basim Belgasim, Khamid Mahkamov

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Pages (from-to)3867-3872
JournalProceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden
Volume57
Issue number14
DOIs
Publication statusPublished - 2011
EventProceedings of World Renewable Energy - Linkoping Sweden
Duration: 1 Jan 2011 → …

Keywords

  • Solar water desalination
  • mathematical modelling

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