Results 1 to 10 of about 4,794 (176)
Energies, 2023 The cooling capacity needed by ultra-low temperature apparatus cannot be reached economically with a single vapor compression refrigeration cycle due to the constraint of the high compressor pressure ratio.
Zhenzhen Liu +3 more
doaj +9 more sources
Energy and exergy analysis of a modified three-stage auto-cascade refrigeration cycle using low-GWP refrigerants for sustainable development. [PDF]
J Therm Anal Calorim, 2023 This study proposed a modified three-stage auto-cascade refrigeration cycle (MTARC) operating with environmentally benign zeotropic mixture of R1234yf/R170/R14 at the refrigeration temperature level of − 80 °C.
Qin Y, Li N, Zhang H, Liu B.
europepmc +4 more sources
A novel method to measure the energy efficiency and performance of an auto-cascade refrigeration cycle [PDF]
Applied Thermal Engineering, 2023 Auto-cascade refrigeration systems are the most used cycles to maintain spaces at ultra-low temperature conditions (-80 to −60 °C). The interest in these systems has risen due to the need to maintain and distribute COVID-19 vaccines.
R. Llopis +2 more
semanticscholar +4 more sources
Mesenchymal Stem Cell-Derived Apoptotic Micro-Vesicles Repaired Sciatic Nerve Defect by Regulating Early Inflammatory Microenvironment and Promoting Angiogenesis. [PDF]
Adv Healthc MaterHUCMSC‐Apo‐mvs enhance peripheral nerve repair by modulating the inflammatory microenvironment (IME), primarily through coordinated actions on three functional cells. They recruit macrophages and promote their polarization from pro‐inflammatory M1 to anti‐inflammatory M2 phenotypes, increasing secretion of IL‐10 and VEGF.
Liu H +21 more
europepmc +2 more sources
Jurnal Teknologi, 2018 Experimental and theoretical analysis investigations are achieved on the performance of the three-stage auto cascade refrigeration system. Energy and exergy analysis of auto cascade system is considered using zeotropic mixed hydrocarbon refrigerant R ...
Ahmed J. Hamad +2 more
semanticscholar +3 more sources
Study of Water-cooled Auto-cascade Refrigeration Cycle with a Low Temperature of﹣60 ℃
Zhileng xuebao, 2015 A new water-cooled auto-cascade refrigeration cycle(WACR) using a binary refrigerant mixture is presented, which adopts a condenser-phase separator instead of a condenser and an evaporative separator in traditional auto-cascade refrigeration cycle.
Yang Yongan, Yang Zhao, Liu Bin
doaj +3 more sources
Zhileng xuebao, 2006 The model was presented to investigate the performance of Auto-cascade Absorption Refrigeration Cycle(ACAR) using R32+R134a/DMF as working pairs in this study.The effects of the factors such as composition of working pairs,generation temperature ...
陈光明, 房杉, 孟祥锋
doaj +3 more sources
International Journal of Refrigeration, 2022 Dawei Li, T. Bai, Jianlin Yu
semanticscholar +2 more sources
The study of thermodynamic properties of zeotropic mixtures of R600a/R23/R14
Advances in Mechanical Engineering, 2017 Thermodynamic properties of zeotropic mixtures of R600a/R23/R14 have been investigated and calculated based on the established mathematical model. The deviations of bubble pressure and vapor composition between the simulation results and the experimental
Yinlong Wu +4 more
doaj +1 more source