HEAT-EXCHANGE METHOD FOR MICROTURBINE POWER PLANTS Russian patent published in 2017 - IPC F28D19/00 

FIELD: power industry.

SUBSTANCE: portion is taken from the main stream of compressed working air supplied from the compressor to the combustion chamber through the heat exchange matrix of the regenerative rotary heat exchanger, and directed bypassing the heat exchange matrix into the lateral cooling channels made in the body of the hot part of the heat exchanger. Before mixing this portion of the air flow with the main stream, it is heated up to the temperature required for efficient combustion of the fuel (600-700°C), by removing the heat of the exhaust gases, by means of a recuperative heat exchanger installed on the hot side of the plant, achieving a simultaneous increase in the temperature of the exhaust gases supplied to the combustion chamber, before they enter the heat exchange matrix of the regenerator, which facilitates the equalization of the temperature gradient of its frame and reduces hydraulic losses, increases the degree of regeneration.

EFFECT: increased energy efficiency of microturbine.

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