The Experts below are selected from a list of 51 Experts worldwide ranked by ideXlab platform
V. P. Zhelezny - One of the best experts on this subject based on the ideXlab platform.
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тhermodynamic properties of isobutane mineral Compressor Oil and isobutane mineral Compressor Oil fullerenes c60 solutions
International Journal of Refrigeration-revue Internationale Du Froid, 2019Co-Authors: V. P. Zhelezny, Olga Khliyeva, Mykola Lukianov, Igor Motovoy, Dmytro Ivchenko, Abdessamad Faik, Yaroslav Grosu, Artem Nikulin, António L. N. MoreiraAbstract:Abstract In present study a new experimental data for the saturated liquid density and saturated vapor pressure along the bOiling line for the solutions of the ”natural” refrigerant isobutane (R600a) with mineral Compressor Oil and solutions of R600a/Compressor Oil/fullerenes C60 is presented. Moreover, a new experimental data on the specific isobaric heat capacity, enthalpy and entropy along the bOiling line for the R600a/Compressor Oil solutions is reported. Experimental data of the two-phase isochoric heat capacity was obtained for different Compressor Oil fraction in the refrigerant in the temperature range from 260 to 330 K. Obtained information was used to calculate the caloric properties of the R600a/Compressor Oil solutions. In addition, an influence of fullerene C60 on the specific isobaric heat capacity of mineral Oil was examined. The measurements of the heat capacity for the R600a/Compressor Oil solutions, pure Compressor Oil and Compressor Oil containing fullerenes C60 were performed using an experimental setup that implements a direct heating method in adiabatic calorimeter. In addition, the heat capacity of Oil and Oil containing fullerenes C60 have been measured using differential scanning calorimetry. Finally, the heat capacity increase for the Compressor Oil with the additives of 0.0020 kg kg−1 of fullerenes C60 was observed.
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Influence of Compressor Oil admixtures on theoretical efficiency of a Compressor system
International Journal of Refrigeration-revue Internationale Du Froid, 2009Co-Authors: V. P. Zhelezny, Sergey V. Nichenko, B. V. Kosoy, Yury V. Semenyuk, Ravi KumarAbstract:Abstract This paper presents a theoretical evaluation of the influence of Compressor Oil admixtures on the thermodynamic performance of a vapor compression system using natural refrigerant R600a. The performance determination is based on the developed pressure–enthalpy diagrams (P–h) for the refrigerant Oil solution (isobutane-mineral Compressor Oil Azmol). A method for calculating the enthalpy of refrigerant–Oil solutions has been proposed and the influence of the Compressor Oil admixtures to isotherms the pressure–enthalpy diagrams has been analyzed. The change of enthalpy at the different Oil concentrations in the working fluid in an evaporator has been investigated. An application of the developed refrigerant–Oil P–h diagrams for the theoretical evaluation of the efficiency of the vapor compression systems is also demonstrated.
António L. N. Moreira - One of the best experts on this subject based on the ideXlab platform.
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тhermodynamic properties of isobutane mineral Compressor Oil and isobutane mineral Compressor Oil fullerenes c60 solutions
International Journal of Refrigeration-revue Internationale Du Froid, 2019Co-Authors: V. P. Zhelezny, Olga Khliyeva, Mykola Lukianov, Igor Motovoy, Dmytro Ivchenko, Abdessamad Faik, Yaroslav Grosu, Artem Nikulin, António L. N. MoreiraAbstract:Abstract In present study a new experimental data for the saturated liquid density and saturated vapor pressure along the bOiling line for the solutions of the ”natural” refrigerant isobutane (R600a) with mineral Compressor Oil and solutions of R600a/Compressor Oil/fullerenes C60 is presented. Moreover, a new experimental data on the specific isobaric heat capacity, enthalpy and entropy along the bOiling line for the R600a/Compressor Oil solutions is reported. Experimental data of the two-phase isochoric heat capacity was obtained for different Compressor Oil fraction in the refrigerant in the temperature range from 260 to 330 K. Obtained information was used to calculate the caloric properties of the R600a/Compressor Oil solutions. In addition, an influence of fullerene C60 on the specific isobaric heat capacity of mineral Oil was examined. The measurements of the heat capacity for the R600a/Compressor Oil solutions, pure Compressor Oil and Compressor Oil containing fullerenes C60 were performed using an experimental setup that implements a direct heating method in adiabatic calorimeter. In addition, the heat capacity of Oil and Oil containing fullerenes C60 have been measured using differential scanning calorimetry. Finally, the heat capacity increase for the Compressor Oil with the additives of 0.0020 kg kg−1 of fullerenes C60 was observed.
Ravi Kumar - One of the best experts on this subject based on the ideXlab platform.
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Influence of Compressor Oil admixtures on theoretical efficiency of a Compressor system
International Journal of Refrigeration-revue Internationale Du Froid, 2009Co-Authors: V. P. Zhelezny, Sergey V. Nichenko, B. V. Kosoy, Yury V. Semenyuk, Ravi KumarAbstract:Abstract This paper presents a theoretical evaluation of the influence of Compressor Oil admixtures on the thermodynamic performance of a vapor compression system using natural refrigerant R600a. The performance determination is based on the developed pressure–enthalpy diagrams (P–h) for the refrigerant Oil solution (isobutane-mineral Compressor Oil Azmol). A method for calculating the enthalpy of refrigerant–Oil solutions has been proposed and the influence of the Compressor Oil admixtures to isotherms the pressure–enthalpy diagrams has been analyzed. The change of enthalpy at the different Oil concentrations in the working fluid in an evaporator has been investigated. An application of the developed refrigerant–Oil P–h diagrams for the theoretical evaluation of the efficiency of the vapor compression systems is also demonstrated.
Olga Khliyeva - One of the best experts on this subject based on the ideXlab platform.
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тhermodynamic properties of isobutane mineral Compressor Oil and isobutane mineral Compressor Oil fullerenes c60 solutions
International Journal of Refrigeration-revue Internationale Du Froid, 2019Co-Authors: V. P. Zhelezny, Olga Khliyeva, Mykola Lukianov, Igor Motovoy, Dmytro Ivchenko, Abdessamad Faik, Yaroslav Grosu, Artem Nikulin, António L. N. MoreiraAbstract:Abstract In present study a new experimental data for the saturated liquid density and saturated vapor pressure along the bOiling line for the solutions of the ”natural” refrigerant isobutane (R600a) with mineral Compressor Oil and solutions of R600a/Compressor Oil/fullerenes C60 is presented. Moreover, a new experimental data on the specific isobaric heat capacity, enthalpy and entropy along the bOiling line for the R600a/Compressor Oil solutions is reported. Experimental data of the two-phase isochoric heat capacity was obtained for different Compressor Oil fraction in the refrigerant in the temperature range from 260 to 330 K. Obtained information was used to calculate the caloric properties of the R600a/Compressor Oil solutions. In addition, an influence of fullerene C60 on the specific isobaric heat capacity of mineral Oil was examined. The measurements of the heat capacity for the R600a/Compressor Oil solutions, pure Compressor Oil and Compressor Oil containing fullerenes C60 were performed using an experimental setup that implements a direct heating method in adiabatic calorimeter. In addition, the heat capacity of Oil and Oil containing fullerenes C60 have been measured using differential scanning calorimetry. Finally, the heat capacity increase for the Compressor Oil with the additives of 0.0020 kg kg−1 of fullerenes C60 was observed.
Igor Motovoy - One of the best experts on this subject based on the ideXlab platform.
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тhermodynamic properties of isobutane mineral Compressor Oil and isobutane mineral Compressor Oil fullerenes c60 solutions
International Journal of Refrigeration-revue Internationale Du Froid, 2019Co-Authors: V. P. Zhelezny, Olga Khliyeva, Mykola Lukianov, Igor Motovoy, Dmytro Ivchenko, Abdessamad Faik, Yaroslav Grosu, Artem Nikulin, António L. N. MoreiraAbstract:Abstract In present study a new experimental data for the saturated liquid density and saturated vapor pressure along the bOiling line for the solutions of the ”natural” refrigerant isobutane (R600a) with mineral Compressor Oil and solutions of R600a/Compressor Oil/fullerenes C60 is presented. Moreover, a new experimental data on the specific isobaric heat capacity, enthalpy and entropy along the bOiling line for the R600a/Compressor Oil solutions is reported. Experimental data of the two-phase isochoric heat capacity was obtained for different Compressor Oil fraction in the refrigerant in the temperature range from 260 to 330 K. Obtained information was used to calculate the caloric properties of the R600a/Compressor Oil solutions. In addition, an influence of fullerene C60 on the specific isobaric heat capacity of mineral Oil was examined. The measurements of the heat capacity for the R600a/Compressor Oil solutions, pure Compressor Oil and Compressor Oil containing fullerenes C60 were performed using an experimental setup that implements a direct heating method in adiabatic calorimeter. In addition, the heat capacity of Oil and Oil containing fullerenes C60 have been measured using differential scanning calorimetry. Finally, the heat capacity increase for the Compressor Oil with the additives of 0.0020 kg kg−1 of fullerenes C60 was observed.