What is refrigeration technology?
Refrigeration technology concerns the movement of heat energy from a lower to higher temperature level. Increasingly, familiar and sometimes less familiar techniques are being applied that utilise the high temperature heat for various purposes, mainly space and water heating.
What are the types of refrigeration technology?
2. Vapour Absorption Refrigeration (VAR) These types of refrigeration consist of evaporators, absorbers, generators, condensers, expansion valves, pumps, and reducing valves. Vapour absorption refrigeration systems (VARS) are primarily used where high power is not readily available.
What is refrigeration simple words?
refrigeration, the process of removing heat from an enclosed space or from a substance for the purpose of lowering the temperature.
What is refrigeration and its application?
Industrial refrigeration isn’t air conditioning—it goes beyond that, both in scale and in the little details. Industrial refrigeration can be defined as the equipment and accessories projected to remove heat from large-scale processes or materials, lowering the temperature to a desired value.
Where is refrigeration used?
Refrigeration is used to liquefy gases – oxygen, nitrogen, propane, and methane, for example. In compressed air purification, it is used to condense water vapor from compressed air to reduce its moisture content.
Why is refrigerant used?
Refrigerant is a chemical compound used in your air conditioner. It absorbs environmental heat and provides cool air once it runs through compressors and evaporators.
Why refrigeration is required?
The fundamental reason for having a refrigerator is to keep food cold. Cold temperatures help food stay fresh longer. The basic idea behind refrigeration is to slow down the activity of bacteria (which all food contains) so that it takes longer for the bacteria to spoil the food.
What type of system is a refrigerator?
A refrigerator is an open system that dispels heat from a closed space to a warmer area, usually a kitchen or another room. By dispelling the heat from this area, it decreases in temperature, allowing food and other items to remain at a cool temperature.
What is unit of refrigeration?
The standard unit of refrigeration is ton refrigeration or simply ton denoted by TR. It is. equivalent to the rate of heat transfer needed to produce 1 ton (2000 lbs) of ice at 32 0F. from water at 32 0F in one day, i.e., 24 hours.
Who made refrigeration?
The first form of artificial refrigeration was invented by William Cullen, a Scottish scientist. Cullen showed how the rapid heating of liquid to a gas can result in cooling. This is the principle behind refrigeration that still remains today.
What is the importance of refrigeration?
Refrigeration slows bacterial growth. Bacteria exist everywhere in nature. They are in the soil, air, water, and the foods we eat. When they have nutrients (food), moisture, and favorable temperatures, they grow rapidly, increasing in numbers to the point where some types of bacteria can cause illness.
What is a refrigerant example?
Traditionally, fluorocarbons, especially chlorofluorocarbons (CFC’s), were used as refrigerants, but they are being phased out because of their ozone depleting effects. Other common refrigerants used in various applications are ammonia, sulfur dioxide, and non-halogenated hydrocarbons such as propane.
What is refrigeration and how does it work?
Refrigeration is an essential food storage technique in developed countries. The lower temperature lowers the reproduction rate of bacteria, so the refrigerator reduces the rate of spoilage. A refrigerator maintains a temperature a few degrees above the freezing point of water.
What is commercial refrigeration?
Commercial refrigeration. Refrigeration is a process of removing heat from a low-temperature reservoir and transferring it to a high-temperature reservoir. The work of heat transfer is traditionally driven by mechanical means, but can also be driven by heat, magnetism, electricity, laser, or other means.
What is the root word in refrigeration?
Latin refrigeratus, past participle of refrigerare, from re- + frigerare to cool, from frigor-, frigus cold — more at frigid Our team at Reviews by Merriam-Webster has selected the best refrigerators.
What is another name for a refrigerator?
For other uses, see Fridge (disambiguation). A refrigerator (colloquially fridge) is a home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature.