Results 11 to 20 of about 402,826 (270)
Materials compatibility and lubricants research on CFC-refrigerant substitute: Miscibility of lubricants with refrigerants [PDF]
, 1992 During this reporting period, modifications were made to the experimental apparatus in preparation for performing the experiments required in this project. In addition, new procedures for charging the lubricant and refrigerant into the cells for high temperature tests have been adopted. All of the refrigerants (10 different types) and lubricants (seven
Pate, M.B. +6 more
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Effect of Co/Ni Substituting Fe on Magnetocaloric Properties of Fe-Based Bulk Metallic Glasses
Metals, 2021 In this work, Fe80-xMxP13C7 (M = Co, Ni; x = 0, 5 and 10 at.%) bulk metallic glasses (BMGs) were prepared, and the effect of the Co/Ni elements substitution for Fe on the magnetocaloric properties of Fe80P13C7 BMG has been investigated systematically ...
Jia Guo +7 more
doaj +1 more source
Energy Procedia, 2017 Abstract Use of natural refrigerant R290 can play a vital role in fulfilling the objectives of the international protocols like Montreal and Kyoto. Because of environmental problems such as ozone depletion and global warming, R22 needs to be phased out on urgent basis.
Choudhari, C.S., Sapali, S.N.
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Evaluation of Virtual Refrigerant Mass Flow Sensors [PDF]
, 2012 Refrigerant mass flow rate is an important measurement for monitoring equipment performance and enabling fault detection and diagnostics. However, a traditional mass flow meter is expensive to purchase and install. A virtual refrigerant mass flow sensor (
Kim, Woohyun, Braun, James E.
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Hermetic refrigerating compressors and CFC substitution
International Journal of Refrigeration, 1991 Abstract This paper presents a basic criterion for determining the most feasible substitute refrigerants for CFC 12 in small refrigerating hermetic compressors. The method includes a simple analysis of some physical and thermodynamic properties of each refrigerant within the ranges of evaporating and condensing temperatures in which small ...
Ernesto Heinzelmann, Mario Sergio Ussyk
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An Experimental Study of Refrigerant Desorption from a Refrigerant-Oil Mixture Subjected to Rapid Depressurization [PDF]
, 2012 This paper deals with the experimental assessment of refrigerant desorption leading to foam formation in R-134a/POE oil mixtures undergoing controlled depressurization.
Barbosa Jr., Jader +2 more
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Extension of a Virtual Refrigerant Charge Sensor [PDF]
, 2012 The primary goal of the work described in this paper was to evaluate and extend a virtual refrigerant charge sensor (VRC) for determining refrigerant charge for equipment having variable-speed compressors and fans.
Kim, Woohyun, Braun, James E.
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A Capillary Tube-Refrigerant Charge Design Methodology for Household Refrigerators-Part II: Equivalent Diameter and Test Procedure [PDF]
, 2012 In the first part of this work an experimental apparatus was designed and constructed to map the energy consumption of a household refrigerator subjected to several combinations of refrigerant charge and expansion restriction.
Melo, Claudio, Boeng, Joel
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Performance Investigation of R290 As A Substitute to R22 Refrigeration System
, 2021 In this study, Use of natural refrigerant R290 can play a vital role in fulfilling the objectives of the international protocols like Montreal and Kyoto. Because of environmental issues such as ozone depletion and global warming, R22 needs to be phased out on urgent basis.
Pawan Kumar Kashyap +3 more
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Study of R161 Refrigerant for Residential Air-conditioning Applications [PDF]
, 2012 In order to investigate the feasibility of R161 applied in residential air conditioner, the thermodynamic performance and comprehensive theoretical thermodynamic cycle of R161, R22 and R290 under various air-conditioner operating condition were carried ...
Zhuang, Rong +3 more
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