Utilization of low-potential thermal power plant energy sources

THE PURPOSE. Development of technical solutions for the utilization of secondary boiling steam to reduce losses of thermal energy, steam and condensate of CHP plants. METHODS. Comparative studies of disposal options were conducted, and several schemes for condensation of low-potential energy sources were proposed. The economic effect of the proposed technical solutions for the utilization of steam emissions from CHP plants is calculated. RESULTS. To determine the technical characteristics of the auxiliary equipment, calculations were carried out on the amount of coolant. During the winter period of operation of the installation - a source of steam emissions, with a minimum evaporation rate of 2.5 t/h - about 10.99 t/h of cooling water (mains water) is needed for cooling and subsequent condensation of steam; with a maximum evaporation rate of 5 t/h - 21.99 t/h of cooling water (mains water), respectively. According to the calculation results, the OVA-16 shell-and-tube heat exchanger was selected, the heat exchange surface area of which is 16 m2. When implementing the proposed technical solutions for the disposal of evaporation, the economic effect was calculated, which amounted to: - with a minimum evaporation consumption of 2.5 t/h for heating mains water, during the heating period (on average 245 days) 82320-98020 rubles; with a maximum evaporation consumption of 5 t/h) 164640-184044 rubles, respectively.

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