Abstract
On the example of gas-turbine plants, we have considered the principal and constructive schemes of thermochemical recuperation for the utilization of secondary energy resources, namely, the enthalpy of exhaust gases. We have developed methods of the calculation of thermodynamic and heat-transfer characteristics of these schemes. We have carried out wide numerical investigations of the technical-and-economical parameters of schemes of thermochemical recuperation and determined their dependences on temperature conditions. We have established that the pay-back period is usually equal to several months, and, hence, thermochemical recuperation is a high-efficiency variant of the utilization of secondary energy resources.
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