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December 2019 (published: 18.12.2019)
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On the economic efficiency of liquid industrial waste utilization using heat pumps
Rachmanov Y.A. , Sergienko O.I., Dmitrieva A.P.
The issues of increasing the energy efficiency of thermal distillation technologies for the disposal of industrial liquid waste in the places of their formation when using heat pumps are considered. Technological schemes of thermal distillation using built-in heat pumps with open loop, working on water vapor, and with a closed loop working on refrigerant R407c are analyzed. A calculation method is given for determining the energy efficiency indicators of thermal distillation technologies using built-in heat pumps: heat transformation coefficient, specific consumption of electric energy, saving equivalent fuel in a replaced boiler house and power plant. The results of the analysis of the energy efficiency of thermal distillation of low-capacity plants for neutralized liquid waste show that they are not inferior to the known foreign counterparts in terms of energy efficiency. The calculated indicators can be used to identify the best available techniques for liquid industrial waste utilization using heat pumps.
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Keywords: standard fuel economy, energy efficiency, best available technique (BAT), thermal distillation, heat pump, working fluid, liquid industrial waste.
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