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RUDN Journal of Engineering Research, 2019 The article describes the experimental setup for testing a heat pump and the results of its operation at various temperatures at its inlet and outlet. An actually task is to study the operation of a heat pump under various boundary conditions, which are ...
Yuriy A. Antipov +4 more
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Thermodynamic analysis for definition of low-potential heat sources
Unconventional ResourcesThis study presents a method for defining low-potential energy sources based on thermodynamic analysis. It defines low potential energy sources and presents the results of calculating temperature levels corresponding to the concept of a low potential ...
Michail Purdin
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Comparative evaluation of the energy and economic efficiency of vapor compression heat pumps in modernization of large chemical and oil refining industries. Part 2 [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023 The question of the expediency of increasing the energy efficiency of a large chemical and oil refining industry by using process heat carriers and raw materials as heaters of vapor compression heat pumps based on systems for recuperating heat process ...
V. L. Yusha +2 more
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Assessment of two-level heat pump installations’ power efficiency for heat supply systems
Trudy Odesskogo Politehničeskogo Universiteta, 2015 The problem of energy saving becomes one of the most important in power engineering. It is caused by exhaustion of world reserves in hydrocarbon fuel, such as gas, oil and coal representing sources of traditional heat supply.
Алла Євсеївна Денисова +1 more
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Features of modeling a highly efficient multistage vapor compression heat pump unit
RUDN Journal of Engineering Research, 2021 The increase in the cost of fuel and energy resource and the deterioration of the environment from the combustion of traditional fossil fuel, have led to a great interest in energy-saving technology by using secondary energy resources in the thermal ...
Yuri A. Antipov +6 more
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Promising directions for the use of heat from low-potential sources of chemical production
Power engineering: research, equipment, technology, 2022 THE PURPOSE. Development of promising directions for improving the technology of an oil refinery (refinery) based on the use of heat from low-temperature sources of the primary oil distillation system.METHODS. The analysis of the technological scheme of the refinery carried out, in order to identify the most energy-intensive system, while using the ...
A. V. Fedyukhin, A. G. Zvonchevsky
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Study of stand-alone building heating system operating with renewable energy sources under moderate continental climate conditions [PDF]
E3S Web of Conferences, 2021 The climatic conditions in Moscow limit to a certain extent the utilization of renewable energy sources for heat supply. Long heating period, relatively low average daily sunshine hours during heating period, and low outside temperatures act as barriers ...
Sokolov Ivan +2 more
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Use of low potencial wastewater heat [PDF]
E3S Web of Conferences, 2019 The article points out that exhaustion of fossil stocks of fuel and negative impacts of fuel burning on environment determined a significant interest in technologies of heat utilization of low-potential sources in many developed countries of the world ...
Dmitrienko Vladimir +3 more
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Energies, 2023 Thermal-driven refrigeration technologies, e.g., absorption- or adsorption-type, are gathering momentum since they can utilize low-grade heat from industrial, solar or geothermal energy.
Meng Yu +5 more
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Concerning utilization of heat from low-potential sources
Thermal Science, 2019 The possibility of using R245fa and n-pentane in the Rankine cycle to convert the heat of low-potential sources into electrical energy is analyzed. A multistage axial-type turbine is considered as a drive of an electric generator. The influence of initial pressure of working fluids on the efficiency of the expansion process is determined. The algorithm
Sergey Alekseenko, Lev Ogurechnikov
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