Does refrigeration mean air conditioning?
Does refrigeration mean air conditioning?
As the name suggests, air conditioner refers to cooling down air in which heat is removed from the specified location. However, refrigeration means to release hot air.
What industry is refrigeration and air conditioning?
Electrotechnology industry
This page provides information and data on the Refrigeration and Air-conditioning sector, which is a component of the Electrotechnology industry. The Refrigeration and Air-conditioning sector includes the installation, maintenance and repair of both domestic and commercial refrigeration and air-conditioning.
Is HVAC and refrigeration the same thing?
“HVAC” stands for “heating, ventilation and air conditioning”, and indicates the systems that also provide heat. Refrigeration systems are meant to keep adequate temperatures in enclosed spaces so that refrigerated goods stay properly chilled, and implicitly, fresh for longer periods of time and safe for consumption.
Which is used in refrigeration and air conditioning equipment Mcq?
Capillary tube, as an expansion device is used in? Explanation: The capillary tube as an expansion device is used in small capacity hermetic sealed refrigeration units such as in water coolers, domestic refrigerators and room air conditioners, etc.
Which gas is used in fridge?
Modern refrigerators usually use a refrigerant called HFC-134a (1,1,1,2-Tetrafluoroethane), which does not deplete the ozone layer, unlike Freon. A R-134a is now becoming very uncommon in Europe. Newer refrigerants are being used instead.
How do refrigerators work?
Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect. When you release the contents into the lower pressure open space, it turns from a liquid to a gas.
What is Airah stand for?
The Australian Institute of Refrigeration, Air Conditioning and Heating.
What is the main purpose of air conditioning?
Air-conditioning signifies the control of an atmospheric environment either for human or to carry out industrial or scientific process efficiently. The purpose of air-conditioning is to supply sufficient volume of condition air having a specific amount of water vapour at a required temperature within a selected space.
What is the work done by the refrigerant in a compressor?
The evaporated refrigerant vapor is compressed to a high-pressure P k in the compressor consuming work W. The heat rejected to the surroundings equals the heat absorbed from the cold body or refrigeration produced plus the work done or mechanical energy consumed.
Why is water used as a cooling medium in a refrigerator?
The specific heat of water is about four times that of air. Water has a higher heat transfer coefficient than air mainly because of its high thermal conductivity. Thus the use of water as a cooling medium results in a lower T k, higher COP and lower power consumption in a refrigerating plant.
What is the need of refrigeration in dairy industry?
Refrigeration is a basic requirement for the processing and storage of milk and milk products as majority of dairy products are perishable in nature. The need of refrigeration is indicated below. 1. Chilling of milk at producers‟ level by employing bulk milk coolers and at milk chilling centers is the first requirement in dairy industry.
