FIELD: heat power engineering.
SUBSTANCE: invention relates to industrial heat power engineering. The method for operation of a trigeneration unit is implemented by heating a low-boiling heat carrying agent by solar radiation, separating liquid droplets and producing a saturated vapor of a low-boiling heat carrying agent, which is directed to a turbo expander, partial boiling in the evaporator of the condensate of the low-boiling heat carrying agent formed after the turbo expander, obtaining cooled air directed to the production facility by evaporating refrigerant vapors, heating water by an electric heater. The shaft of the turbo expander is connected with the electric generator and the shaft of the axial pump of the refrigeration system of the facility. During daytime operation the residual generated electricity is directed to the needs of the production facility. During operation in the transition period of the day, the electric drives of the auxiliary compressor and the low-boiling heat carrying agent recirculation pump are partially activated. During nighttime operation the electric drives of the auxiliary compressor and the low-boiling heat carrying agent recirculation pump are put in the nominal mode. The electric generator of the turbo expander is cooled using a low-boiling heat carrying agent.
EFFECT: reduced electricity consumption from the external power grid.
1 cl, 2 dwg
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