Show simple item record

AuthorTakalkar G.D.
AuthorBhosale R.R.
Available date2020-03-03T06:19:05Z
Publication Date2018
Publication NameSolar Energy
ResourceScopus
ISSN0038092X
URIhttp://dx.doi.org/10.1016/j.solener.2018.07.081
URIhttp://hdl.handle.net/10576/13138
AbstractThis paper investigates a solar driven external combustion and regenerative engine, which can be used for desalination of seawater by using gaseous working fluids. The effect of operating and design parameters on engine performance for different suction (Pc) and discharge (Ph) pumping pressures, hot (Th) and cold (Tc) space temperatures, regenerator effectiveness (?R), displacer full stroke length (X0) and dead volume of hot (Xho) and cold (Xc0) spaces is studied in detail. Optimization of pumping discharge pressure based on energy and exergy performance for six different working fluids is simulated. The energetic and exergetic analysis is performed at steady state conditions for the proposed thermodynamic cycle. Predominantly, mass and energy balance equations are applied to optimize the effect of different operating (Th,Tc,Pc,Ph) and design (?R,Xh0,Xc0,X0) parameters on the output work and efficiencies. An open source SCILAB code is utilized to solve the derived equations for pressure, volume, temperature, mass, and heat loads. The simulation results provide profiles for energy efficiency, exergy efficiency, and optimization based on selected design and operating parameters. Obtained results show that for each charging pressure and hot space temperature, there is a different optimum discharge pressure and optimum hot temperature based on exergetic and energetic efficiency values. Besides, the net hydraulic work-output rises with the increase in the charged mass and displacer full stroke length. Simulation and thermodynamic analysis of proposed engine can be useful to design and select the optimum pumping heads for an accessible heat source and sink temperatures used for desalination to reduce the electricity consumption.
SponsorThis publication was made possible by the NPRP grant ( NPRP8-547-2-222 ) from the Qatar National Research Fund (a member of Qatar Foundation).
Languageen
PublisherElsevier Ltd
SubjectEncontech engine
Energy and exergy efficiency
Hydraulic power output
Solar desalination
Thermal powered pumping
TitleMathematical modeling, simulation and optimization of solar thermal powered Encontech engine for desalination
TypeArticle
Pagination104 - 115
Volume Number172
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record