Influence of a two-stage heat recovery scheme on the operation of the PV-MD collector.
DOI:
https://doi.org/10.15276/opu.1.69.2024.04Keywords:
hybrid solar collector, method PV-MD, temperature regime, distillate production, electricity productionAbstract
Production efficiency of the electric power the solar module is essentially defined by a thermal operating mode. One of
progressive ways of affecting on a thermal regime is vapour cooling which at distillation of saliferous waters gives the chance to operate
temperature of the solar cell and to gain a by-product in the form of sweet water. At cascade multistage recovery evaporation heats sampling
of the circuit solution of a process of cooling allows to optimise a combination of electric and distillation productivity of the photomodule.
The analysis of formation of temperature pattern of an absorber of a hybrid solar collecting channel (PV-MD), a salt solution chilled at twolevel distillation with recovery warmth of steam is in-process carried out. The analysis method allows to investigate PV-MD-collecting
channel characteristics - temperatures of an absorber and heat-transfer agent, productivity of system on the electric power and distillate at
implementation of counter flow and direct-flow circuit designs of traffic of a solution, and also depending on module working conditions.
The work purpose - synthesis of a method of calculation of opeating characteristics of a hybrid solar collecting channel with the finestiller at
the cascade way Heat and mass transfer heat-transfer agent and revealing of the rational technological circuit design of the device. The
mathematical model of a hybrid solar collecting channel is characterised by possibility of the local analysis of processes Heat and mass
transfer for real conditions of a solar and climatic situation. The analysis Heat and mass transfer in alternative conditions showed that
sampling of the circuit design of traffic of heat-transfer agent practically does not depend on electric power conditions of production, but is
essentially defined by agency of directions of streams of heat-transfer agent on distillation process. On conditions of rationalisation of
process of distillation for achievement of the greatest level of production of distillate the circuit design of direct-flow cascade traffic of a
solution is effective.
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References
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