refrigerant cooling system Articles

  • Cool energy saving: how to cut energy waste from refrigeration and chilling

    With an ongoing focus on energy and carbon management and cutting costs, the FMCG sector has a need to achieve energy savings, and refrigeration and chilling is the perfect place to focus. Whether it be manufacturing processes, food storage in distribution centres, or the operation of supermarket displays, ...


    By Inprova Energy

  • Minimizing Refrigerant Emissions in HVAC Systems

    Managing the operation and maintenance of a facility's air conditioning equipment has always been a major responsibility, as chillers often represent the single largest electrical load in a facility. Since the annual cost of operating chillers is a major ...


    By IHS Markit

  • What is a ton of refrigeration?

    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 understanding the size of a refrigeration system in ...


    By Power Knot LLC

  • Walk-in refrigerators and freezers at a Prestigious hotel

    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 more energy efficient, the hotel engaged Power Knot ...


    By Power Knot LLC

  • A study on the exergetic and environmental effects of commercial cooling systems

    This study examines the effects of exergy efficiencies for three different cooling systems used commonly in commercial applications like hypermarkets. Additionally, environmental effects depending on the Total Equivalent Warming Impact (TEWI) in each system are calculated. In the analysis, considered under constant load, R22, R502, R134a, R404a and R507 refrigerants, and R407 and R410 alternative ...


    By Inderscience Publishers

  • Exergetic performance evaluation of ejector cooling system

    Ejector-cooling model is developed to calculate the entrainment ratio and the area ratio representing throat to nozzle area. The developed model is validated with available experimental data in the literature. Parametric studies using the refrigerant R134a as the working fluid show that the Coefficient of Performance (COP) of the system is increased by increasing the generator and evaporator ...


    By Inderscience Publishers

  • Performance evaluation of locality–based compact solar refrigeration system

    Cooling system with low capacity utilising solar power can be widely used for remote and rural cooling applications. This paper describes the trend of solar insolation for a period of one year at Tiruvannamalai town, a district capital in Tamil Nadu state, South India which is geographically located at latitude 12.229 N, longitude 79.076 E. The performance of a compact solar refrigeration system ...


    By Inderscience Publishers

  • Improving energy efficiency: About oil fouling in refrigeration systems

    Introduction Most air conditioning and refrigeration systems have a mechanical compressor which relies upon lubricating oil to function. During the normal course of the refrigeration process, ½% to 8% of the compressor’s lubricating oil is circulated throughout the system along with the refrigerant. Since the early days of refrigeration and air conditioning technology, the ...


    By Power Knot LLC

  • EPA mandates proper refrigerant gas recovery processes

    New EPA regulations require facilities that use air conditioning and refrigeration equipment to have a refrigerant recovery plan in place. The plan is needed to make sure that any harmful gases that might leak are captured. Refrigerant gases contain hydrochlorofluorocarbons, known to cause severe damage to the ozone layer and to promote global warming. A comprehensive plan is now in place to ...


    By Verisae

  • Andover, Vapor Extraction and Refrigerated Condensation Case study

    Vapor Extraction and Refrigerated Condensation was used as a primary source removal technology to remediate high concentrations of recalcitrant chlorinated solvent compounds at the WDE Site in Minnesota. The use of Refrigerated Condensation has achieved high mass removal rates and will reduce the lifecycle costs and time of remediation. History 6,600 drums of hazardous ...

  • Refrigerant leak detection is heavily regulated by government agencies

    Refrigerant leak monitoring in refrigeration and air-conditioning (RAC) systems and heating, ventilation and air conditioning (HVAC-R) equipment is very challenging, even for the most skilled HVAC-R technician. The leak could be well concealed from view in tubing, a system component, or in an operating or safety control component. With the Environmental Protection Agency (EPA) laws documented ...


    By Verisae

  • Degassing Refrigerators - Drill-head and Piercing-plier

    1. For what purpose do we have to degas a refrigerator? A refrigerator has to be disposed as hazardous waste. The refrigerants inside a hazardous refrigerator are harmful for the environment (ozone depleting and greenhouse effect). Most common refrigerants are; R12, R134a and R600a. The uncommon is the removal of NH3. Refrigerants are developed to dissolve very easily into ...


    By ATN Engineering B.V.

  • REFRIGERANT RULES: HOW NOT TO GET ZAPPED BY PROPOSED CHANGES

    Refrigerant management requirements are likely to become even stricter. Are you and your customers ready? The U.S. Environmental Protection Agency (EPA) has proposed new rules and record-keeping requirements that add to those already in effect concerning servicing, maintaining, repairing, or disposing of air conditioning or ...


    By IHS Markit

  • Calculating the cost savings for refrigerant gas leak detection

    The real benefits of refrigerant gas leak detection Following on from the last article, we feel that it’s natural to then discuss some of the practical reasons (cost savings) that will encourage the industry to take action and reduce their F-Gas emissions. Who requires refrigerant leak detection under the F-Gas proposals? There are a ...


    By a1-cbiss

  • Thermodynamic modelling of a water-to-water heat pump using propane as refrigerant

    The aim of this paper is to develop a thermodynamic model for a water-to-water heat pump using propane as refrigerant. This model is based on the thermodynamic principals and heat transfer fundamental laws. The performances of the heat pump have been looked at as function of the water temperatures at the entry of the evaporator and the condenser. The results show that the cooling and heating COP ...


    By Inderscience Publishers

  • Thermo-ecological performance optimisation of two stage irreversible refrigerators

    The present study investigates the optimal performance of two stage refrigeration system based on thermo-ecological performance criterion. To maximise the ecological performance function, the working fluid temperatures are optimised. The optimal conditions such as cooling load, entropy generation rate and Coefficient of Performance (COP) are arrived analytically. The derived solution provides a ...


    By Inderscience Publishers

  • Thermodynamic analysis of ejector–absorption refrigeration cycle using the second thermodynamic law

    The exergy analysis of an ejector–absorption refrigeration system (EARS) for cooling applications using LiBr–H2O is presented in this paper. A computer simulation programme is developed for the cycle and used to determine the coefficient of performance and the second law efficiency of the EARS. Also, the exergy destruction and heat rate in each component of the system are ...


    By Inderscience Publishers

  • Simplified mass balance method: An accurate way to track refrigerant emissions

    With the simplified mass balance method, current levels of harmful refrigerant gases or other chemicals that harm the environment, such as hydrofluorocarbons (HFCs) and chlorofluorocarbons (CHCs), can be calculated and work to better predict of future levels of accumulated emissions formulated. This emissions information enables environmental scientists and government regulators to better ...


    By Verisae

  • Refrigerator condenser (shell and tube heat exchanger) cleaning case study

    In today's industrial environment of unceasingly consummates and improvement of equipment manufacturing technologies, heat-exchange and water circulation equipments become popular in the manufacture industry. The equipments can run efficiently at rated power if their systems have clean and unimpeded water channel. Once the water running equipments or systems were blocked by scale, it may cause ...


    By Mibo International Corp.

  • Global Warming Potential (GWP) significance of HCFC refrigerant gases

    The global warming potential of chemicals is well documented. This is usually documented by referencing how much a chemical will impact global warming as compared to a similar amount of carbon dioxide. Refrigerants typically outrank carbon dioxide by a factor of 100 or even 1000 and stay in the atmosphere longer to our climate's detriment. All greenhouse gases are allocated a global warming ...


    By Verisae

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