refrigerators Articles

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What is a ton of refrigeration?

by Power Knot LLC  (Mar. 6, 2010)

Commercial refrigeration systems in the US are mostly rated in tons of refrigeration and this term is used widely in other parts of the world. However, outside the US, cooling systems may be normally specified in kW (or MW) or in Btu/h. The roots for refrigeration are in the ice making industry, and the ice manufacturers wanted an easy way of ...

EPA compliance - Refrigerant Management

by IHS  (May 23, 2005)

Everyone's Responsibility Today, the environment is everyone's responsibility. Are you taking an active part to keep it clean? We've all heard about the ozone layer. Ozone depletion in the atmosphere has become an increasing problem ...

Leaking Refrigerators - Sorted

by Cleveland Biotech Ltd.  (Mar. 1, 2011)

FridgeFree has been proven to eliminate the problem of leaking refrigerators by eradicating the gel that blocks the drain pipes leading to the floods. The natural solution to refrigerator gel blockages; improving customer experience and revenue protection. Features: Discretely installed on the affected drain line Disrupts the resident ...

Secondary-Refrigerant Desalination

by American Water Works Association (AWWA)  (Nov. 1, 1972)

Freezing processes were among the first techniques to be developed for desalting purposes. There are two processes: a vacuum process which uses the water vapor itself as the refrigerant and secondary refrigerant process that utilizes immiscible refrigerant that is mixed in direct contact with the feedwater. It is this second process which is ...

Exergy based refrigerant selection and simulation of auto refrigeration cascade (ARC) system

by Inderscience Publishers  (Nov. 15, 2004)

This paper deals with the selection of refrigerants and simulation of Auto Refrigeration Cascade (ARC) system, which is generally used for low temperature applications in the range of -40 to -150°C that operates with zeotropic mixture, containing two or more refrigerants with different boiling points. The selection of refrigerants depends on the ...

Exergy analysis of a vapour-compression refrigerating system using R410A as refrigerant

by Inderscience Publishers  (May 20, 2009)

In this study, the first and second laws of thermodynamics are employed to analyse the performance of an experimental Vapour-Compression Refrigerating Machine (VCRM) using R410A. The exergy method is used to evaluate the irreversibility of each component when some working parameters are varied. The dimensionless exergy loss rate of each component ...

Irreversibility analysis of a compression refrigeration cycle using natural refrigerants for a sustainable future

by Inderscience Publishers  (Mar. 16, 2012)

Irreversibility analyses of R290, R717, R718 and R744 are carried out in a compression refrigeration cycle. The effects of evaporator temperature, condenser temperature and isentropic efficiency on the irreversibility of the cycle and its basic components are investigated and exergy analysis of the cycle is also presented as a function of ...

Walk-in refrigerators and freezers at a Prestigious hotel

by Power Knot LLC  (Dec. 14, 2012)

The Mark Hopkins Hotel in San Francisco is one of the most prestigious hotels in the city. It takes pride in the care and comfort of its guests. The refrigeration systems keep food cold or frozen. These are critical components of the hotel’s food service and it is paramount that no system be taken out of service. With a view to becoming ...

Landfill remediation with refrigerants and chlorinated solvents

by Good Earthkeeping Organization Inc (GEO)  (Oct. 13, 2010)

PROJECT DESCRIPTION Between 1979 and 1980, industrial and hazardous wastes were disposed of at the Site in a series of unlined pits, each of which was used for a particular type of waste disposal. It is reported based on evaluations of manifests that approximately 3.4 million gallons of hazardous liquid wastes and between 3,700 and 4,100 tons of ...

Refrigerant gas management (case study)

by Verisae  (Sep. 25, 2009)

Executive Summary Refrigerant leaks are one the highest maintenance expenses for organizations using or maintaining gas. In addition to compliance, management of refrigerant is important from a cost perspective. A typical 100-store supermarket chain operates with 400,000 lbs. of refrigerant within their refrigeration and air conditioning systems. ...

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