Article

Solar thermal heat engines for water pumping: An update

Dpto. Física Fundamental y Experimental, Electrónica y Sistemas, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez s/n, 38205 La Laguna, Tenerife, Spain
Renewable and Sustainable Energy Reviews (Impact Factor: 5.9). 02/2009; 13(2):462-472. DOI: 10.1016/j.rser.2007.11.004

ABSTRACT

Solar thermal-driven heat engines for water pumping have been previously reviewed for some authors in the past century. However, some devices have not been treated as metal hydride-based systems or the pumping subsystems of solar thermal-driven reverse osmosis desalination systems. Following the typical classification given in the previous literature, in this work an update of the solar heat engines for water pumping based in thermodynamic methods (conventional and unconventional) is presented. Besides small remarks about systems previously quoted by other authors, new designs found in the literature are described. In general, the main characteristics of these systems is their low efficiency, low power output and, in the case of unconventional designs, its simplicity. This work in conjunction with previous review papers make up reference point for the knowledge of the use of solar thermal energy for liquid pumping purpose.

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    • "Wong et al. [23]reviewed the latest developments on the solar water pumping systems up to 1998. Delgado-Torres [24] presented another similar work in 2009. Bumataria and Patel [25] presented a review work on development of the solar powered Stirling engines that can be employed as a water pump at rural regions. "

    No preview · Dataset · Jan 2016
    • "Wong et al. [23]reviewed the latest developments on the solar water pumping systems up to 1998. Delgado-Torres [24] presented another similar work in 2009. Bumataria and Patel [25] presented a review work on development of the solar powered Stirling engines that can be employed as a water pump at rural regions. "

    No preview · Dataset · Dec 2015
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    ABSTRACT: Conceptual design of a new type solar-powered water pump (SPWP) integrated into flat plate solar collector (FPC) has been carried out. SPWP represents simple heat engine-membrane pump operating through alternating of processes of evaporation and condensation in its working chamber. It should provide circulation of water using part of absorbed by FPC heat and returning it finally to the same heat carrier. Two basic versions of structural layout of FPC have been considered: the first -with flow-through absorber (with circulation of water through riser pipes welded to absorbing plate) and the second – with absorber with gravity-assisted heat pipes (GAHPs). In terms of efficient operation important role of proper organization of boiling heat transfer on downward-facing heating surface of working chamber has been revealed. Thermo-hydrodynamic peculiarities of this process are considered. The results of preliminary experimental study of boiling heat transfer on downward-facing heating surface are presented.
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