Performance investigation and design optimization of a vapor injection rotary compressor without check valve in injection path
Sign Up to like & getrecommendations! Published in 2021 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2021.117372
Abstract: Abstract In recent years, low-temperature air source heat pumps using vapor refrigerant injection technique, which can effectively improve the performance and heating capacity of the rotary compressor heat pump systems in cold regions, have become… read more here.
Keywords: compressor; rotary compressor; performance; injection ... See more keywords
Visualization and heat transfer in a closed loop thermosyphon with a check valve
Sign Up to like & getrecommendations! Published in 2020 at "Case Studies in Thermal Engineering"
DOI: 10.1016/j.csite.2020.100758
Abstract: ABSTRACT Liquid-vapor flow separation is a major problem in the development of high-efficiency two phase thermosyphons. The closed loop thermosyphons with check valve (CLTP/CV) are able to completely separate the liquid-vapor flow and their efficiency… read more here.
Keywords: heat; heat transfer; check valve; flow ... See more keywords
Numerical Simulation of a Check Valve Closure Induced by Pump Shutdown
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Hydraulic Engineering"
DOI: 10.1061/(asce)hy.1943-7900.0001543
Abstract: AbstractHigh pressure surges induced by the sudden closure of check valves can cause severe damage to mechanical and hydraulic facilities. A three-dimensional unsteady numerical simulation of a dua... read more here.
Keywords: simulation check; check valve; numerical simulation; closure ... See more keywords
Research on Structurally Constrained KELM Fault-Diagnosis Model Based on Frequency-Domain Fuzzy Entropy
Sign Up to like & getrecommendations! Published in 2023 at "Entropy"
DOI: 10.3390/e25020206
Abstract: As the core equipment of the high-pressure diaphragm pump, the working conditions of the check valve are complicated, and the vibration signal generated during operation displays non-stationary and nonlinear characteristics. In order to accurately describe… read more here.
Keywords: frequency domain; fuzzy entropy; check valve; domain fuzzy ... See more keywords