Results 11 to 20 of about 1,194 (289)

The Exploratory Research on Mixed Refrigerants of A Five-Stage Autocascade Refrigeration System [PDF]

open access: yesZhileng xuebao, 2011
A five-stage Auto-cascade refrigeration cycle(ARC) is brought forward.According to the experiences that different systems with different components and proportion of mixed refrigerants can result in different evaporating temperature,the components ...
doaj   +6 more sources

Study on Mixed Refrigerants Selecting and Matching of a Four Stage Auto-cascade Refrigeration

open access: yesZhileng xuebao, 2013
The selection and mixture ratio of the mixed refrigerants are important to a multistage auto-cascade refrigeration system. A simulation method was found for the mixed refrigerants selection and ratio calculation by using the commercial software REFPROP8 ...
Zhao Wei   +4 more
doaj   +3 more sources

The name of the article is Experimental researches of refrigeration machines retrofit to alternative ozone friendly mixed refrigerants power efficiency

open access: yesЮг России: экология, развитие, 2015
The problems of refrigeration equipment transfer from ozone destroying refrigerant R22 to alternative mixed refrigerants are considered in the article. The exergy method is chosen from all possible ways of energy factors comparison.
A. Y. Kuzmin, A. V. Bukin
doaj   +2 more sources

Experiment Study of Pool Boiling Heat Transfer of Multicomponent Mixed-refrigerants

open access: yesZhileng xuebao, 2006
Heat transfer coefficients in nucleate boiling on a smooth flat surface were measured for pure fluids of R-134a,propane,isobutene,and their binary and ternary mixtures at different pressures from 0.1 to 0.6 MPa.
孙兆虎   +3 more
doaj   +4 more sources

A new heat transfer correlation based on flow patterns for hydrocarbon refrigerants condensation flow

open access: yesCase Studies in Thermal Engineering
To accurately predict heat transfer coefficients for hydrocarbon refrigerants condensation flow in heat exchangers is imperative for designing efficient systems.
Xianshi Fang   +4 more
doaj   +2 more sources

Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration [PDF]

open access: yesE3S Web of Conferences, 2019
The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP.
Zheng Dayu   +3 more
doaj   +2 more sources

Comparative Analysis of Heat Transfer in a Type B LNG Tank Pre-Cooling Process Using Various Refrigerants

open access: yesEnergies
This study presents a comprehensive three-dimensional Computational Fluid Dynamics (CFD) analysis of the pre-cooling process of a Type B LNG tank using various refrigerants, including liquid nitrogen (LN), nitrogen gas (NG), liquefied natural gas (LNG ...
Qiang Sun   +6 more
doaj   +2 more sources

Optimizing the refrigerants in ultra-low temperature Semiconductor processing chiller with mixed Refrigerant

open access: yesCase Studies in Thermal Engineering
Mixed refrigerant (MR) Cascade Refrigeration Systems are widely employed in industries requiring both extremely low temperatures and large cooling capacity, such as semiconductors and displays.
Hye-In Jung   +2 more
doaj   +2 more sources

PREDICTION OF THE USE OF REFRIGERANTS IN LOW-TEMPERATURE EQUIPMENT

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives Determination of prospects for the use of various refrigerants, as well as the potential for their interchangeability in low-temperature equipment in accordance with the conditions of the Kigali Amendment to the Montreal Protocol on substances
J. V. Tatarenko   +2 more
doaj   +3 more sources

Proposals for Next-Generation Eco-Friendly Non-Flammable Refrigerants for a −100 °C Semiconductor Etching Chiller Based on 4E (Energy, Exergy, Environmental, and Exergoeconomic) Analysis

open access: yesEnergies
Recent advancements in cryogenic etching, characterized by high aspect ratios and etching rates, address the growing demand for enhanced performance and reduced power consumption in electronics. To precisely maintain the temperature under high loads, the
Hye-In Jung   +2 more
doaj   +2 more sources

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