Results 191 to 200 of about 678 (227)

THE INFLUENCE OF HEAT LEAKAGE AND INTERNAL IRREVERSIBILITY ON THE PERFORMANCE OF A QUANTUM SPIN REFRIGERATION CYCLE

International Journal of Modern Physics B, 2010
The cycle model established here, for which the heat leakage and internal irreversibility are considered, consists of two irreversible non-isentropic adiabatic and two isomagnetic field processes. The working substance is composed of many non-interacting spin systems.
He, Ji-Zhou, Wang, Jian-Hui, Deng, Xin-Fa   +2 more
openaire   +1 more source

Measurement of Passenger Compartment Refrigerant Concentrations Under System Refrigerant Leakage Conditions

2017
<div class="section abstract"> <div class="htmlview paragraph">This Standard is restricted to refrigeration circuits that provide air-conditioning for the passenger compartments of passenger and commercial vehicles.</div> <div class="htmlview paragraph">This Standard includes analytical and physical test procedures to evaluate
openaire   +1 more source

Refrigerant Gas Leakage in ISO Room: A Comparative CFD Study

2019
Much testing research has been funded over the recent years to understand the risks associated with the leakage of combustible refrigerants into confined spaces. The push for more environmentally friendly refrigerants has increased the risk of fire due to the combustibility of this new class of refrigerants.
Sangamesh Hosur, Sachin Kumar Rai, Mahmood Tabaddor   +2 more
openaire   +1 more source

Measurement of Passenger Compartment Refrigerant Concentrations Under System Refrigerant Leakage Conditions

2019
<div class="section abstract"> <div class="htmlview paragraph">This Standard is restricted to refrigeration circuits that provide air-conditioning for the passenger compartments of passenger and commercial vehicles.</div> <div class="htmlview paragraph">This Standard includes analytical and physical test procedures to evaluate
openaire   +1 more source

Heat Transfer and Leakage Analysis for R410A Refrigeration Scroll Compressor

2017
In order to quantitatively analyze the impact of the convective heat transfer, flank and radial leakage for working process of R410A refrigeration scroll compressor thoroughly. Working process of a mathematical model for refrigeration scroll compressor is proposed. The convective heat transfer between refrigerant and scrolls for each working chamber is
Bin Peng, Lemort Vincent, Wuyin Jin
openaire   +1 more source

Leakage test examination of shaft seals for CO2 refrigerant compressors

ATZ worldwide, 2009
Axial face seals are well suited for dynamic shaft sealing in CO2 (R744) refrigerant compressors for air-conditioning units in regard to design. An axial face seal by Kaco Dichtungstechnik GmbH has been released for series production and is currently being run in at nearly all producers of compressors worldwide.
openaire   +1 more source

Monitoring hydrofluorocarbon refrigerant leakage from air-conditioning systems in buildings

Applied Energy, 1996
Abstract Hydrofluorocarbons (HFCs) are now widely used in refrigeration and air-conditioning systems. These systems lose refrigerants through leaks and during servicing. This paper discusses the possibility of determining the emission rate of HFCs in buildings by applying tracer-gas techniques.
Cheong, K.W., Riffat, S.B.
openaire   +1 more source

USING METHOD ABOUT DIAGNOSING OF LEAKAGE OF THE REFRIGERATING AGENT FROM REFRIGERATING SYSTEM OF THE HOUSEHOLD REFRIGERATOR

2014
Представлені теоретичні основи та результати експериментальних досліджень розподілу температури на поверхні випарника і в об’ємі морозильної камери побутового холодильного приладу ( ПХП ) ДХ- 239 який працює на ізобутані. Обґрунтовано, місце розташування датчика і параметри настройки приладу автоматики, що сигналізує про витік холодоагенту з ...
openaire   +1 more source

Study on the impacts of refrigerant leakage on the performance and reliability of datacenter composite air conditioning system

Energy, 2023
Xiuming Li, Zongwei Han
exaly  

Predicting Leakage of Refrigerant in the Piston Cylinder Clearance of Reciprocating Compressors

Procceedings of the 18th Brazilian Congress of Thermal Sciences and Engineering, 2020
Murilo Nicoluzzi, Vitor de Melo Braga, Cesar Deschamps   +2 more
openaire   +1 more source