Results 1 to 10 of about 1,062,238 (285)
Zhileng xuebao, 2021 This study aimed to optimize the heat production performance of an enhanced vapor injection air source heat pump system with R32. Combined with the structure and actual operation characteristics of a scroll compressor system, a complete mathematical ...
Zhang Tong, Zhao Lei, Li Yan
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Zhileng xuebao, 2019 Air-source heat pumps suffer from many problems such as high pressure ratio, high discharge temperature, and poor performance at low temperature. The enhanced vapor injection (EVI) technology can improve the performance of an air-source heat pump at low ...
Ran Xiaopeng, Zhai Xiaoqiang, Luo Qiong
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Thermodynamic Performance Analysis and Refrigerant Evaluation of Enhanced Cascade Vapor-Injection Refrigeration Systems [PDF]
EntropyTo enhance the compression efficiency and refrigerant flow capacity for low-temperature refrigeration applications, the vapor-injection strategy is innovatively synthesized with two-stage cascade refrigeration systems.
Jidong Li +3 more
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Experimental Investigation on a Vapor Injection Heat Pump System with a Single-Stage Compressor
Energies, 2020 In this study, a heat pump of 10 kW with vapor injection using refrigerant of R410A was developed. A vapor injection pipe connecting a gas–liquid separator at the outlet of the main expansion valve and the suction of a single-stage rotary compressor was ...
Hongzhi Liu +3 more
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Simulation Study on the Performance of an Enhanced Vapor-Injection Heat-Pump Drying System
Energies, 2022 The performance of an enhanced vapor-injection heat-pump drying system was designed and theoretically studied in cold areas. According to the simulation findings, the ideal vapor-injection charge of the system ranges from 12.3 to 13.9%, and its ideal ...
Suiju Dong +6 more
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Performance Analysis of Linear Compressor with Vapor Injection
Zhileng xuebao, 2022 In this study, the characteristics of a linear compressor with vapor injection (VI) were investigated. A model of a linear compressor with VI validated by the experiment was proposed to explore the effects of VI pressure, piston stroke, and driving ...
Li Xuan +4 more
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Hu Y. S., Wei H. J., Yu B., Yang O. X., Wang J., Wu J. Research on the vapor injection of two-stage rotary compressor / trans. from Engl. M. A. Fedorova [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021 In order to understand the vapor injection flow characteristics of two-stage rotary compressor in the course of compression, a mathematical model based on mass conservation equation, energy equation and thermodynamic identity was established and proved
M. A. Fedorova
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Performance of Rotary Compressor with Vapor Injection Mechanism on Blade
Zhileng xuebao, 2016 A novel vapor injection structure on blade for rotary compressor is put forward. In the new mechanism, the inject port will keep close until the gas suction process is finished and the compression pocket is isolated from the suction tube, which avoids ...
Liu Xingru +3 more
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Applied Sciences, 2021 The phase-down of hydrofluorocarbons and substitution with low global warming potential values are consequences of the awareness about the environmental impacts of greenhouse gases.
Morteza Ghanbarpour +3 more
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Pharmacological effects of methamphetamine and alpha-PVP vapor and injection [PDF]
NeuroToxicology, 2016 Vaporizing drugs in e-cigarettes is becoming a common method of administration for synthetic cathinones and classical stimulants. Heating during vaporization can expose the user to a cocktail of parent compound and thermolytic degradants, which could lead to different toxicological and pharmacological effects compared to ingesting the parent compound ...
Julie A, Marusich +4 more
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