The thermodynamic properties of R134a are very similar to that of R-12 but it has significantly less impact on the depletion of ozone layer.Īt atmospheric pressure, the R134a has a boiling point of -26.8 oC and at 10psi pressure, its boiling point rises to -10.6 oC. Since then, the R134a refrigerant became the industry standard in automotive ACs and other refrigeration and freezing applications. But due to its damaging effect on ozone, it has been banned in phases starting from 1994. Freon (Freon-11, Freon-12, Freon-13, Freon-21, Freon-22, Freon-113, etc.)Įarlier, the R-12 (also sold under the brand name Freon-12) was used as the main refrigerant in automobiles and household refrigeration.Based on these and several other properties, some of the popular and industry approved refrigerants are: There are many other properties that a refrigerant must have (there are some requirements even at the molecular level). It should be easy to liquify or vaporize and also moderate its pressure and temperature.It should have a large latent heat value.It shouldn’t be hazardous and must be safe and non-toxic.It should be non-corrosive to metals and must mix well with oils.It should not be explosive or flammable.It is important for the refrigerant to have certain properties such as: To expel all the heat absorbed by the refrigerant, it is condensed from gas to liquid at high temperature and pressure. During this phase, the refrigerant is converted from liquid to gas. At a low temperature and pressure, the refrigerant absorbs heat. It is clear that the main component that helps in cooling your cabin is the refrigerant. During this process, it absorbs heat and humidity from the car’s cabin and provides with cool and dry air.Īll the components i.e., the compressor, condenser, accumulator (or receiver drier) and evaporator work in harmony to give you with cool air. Refrigerators and Air Conditioners are the perfect examples of this system.Ī special fluid called Refrigerant is used in refrigerators and air conditioners that helps in transfer of heat by continuously cycling between high high-pressure liquid state and a low-pressure gas state. The unwanted heat is mechanically transferred to an external area where the heat is unobjectionable. The process of removing heat from an area or location is called as Refrigeration. Let us first see a very basic overview of how the air conditioning system in your car works. Low Side Pressure and High Side Pressure.You can also get the formula used in kPa to psi conversion along with a table representing the entire conversion. If you encounter any issues to convert Kilopascal to psi, this tool is the answer that gives you the exact conversion of units. Converting kPa to Pound Per Square Inch is easy, for you only have to select the units first and the value you want to convert. When you are converting pressure, you need a Kilopascal to Pound Per Square Inch converter that is elaborate and still easy to use. helps in the conversion of different units of measurement like kPa to psi through multiplicative conversion factors. Be it buying grocery or cooking, units play a vital role in our daily life and hence their conversions. Measurement like pressure finds its use in a number of places right from education to industrial usage. Units of measurement use the International System of Units, better known as SI units, which provide a standard for measuring the physical properties of matter.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |