The type of refrigerant
refrigerant are currently in use can be divided into 7 type large. According to the chemical composition and properties of
1 refrigerant as refrigerant the halocarbon (Halocarbon compounds)
.These substances are synthetic compounds of methane and ethane as a refrigerant
.Used mostly at present both in refrigeration, household, commercial and industrial refrigeration Divided into 3 groups according to chemical composition, as follows:
1.1 refrigerant, the CFC (Chlorofluorocarbon) as a refrigerant with
chlorine (Cl) fluorine (F) and carbon (C) elements. Such as refrigerant
Dichloromonofluoromethane (R-12)
1.2 refrigerant, the HCFC (Hydrochlorofluorocarbon) is a substance made
.A cold, with hydrogen (H), chlorine (Cl) fluorine (F) and carbon (C) elements like substances do
alw Monochlorodifluoromethane. (R-22)
1.3 refrigerant, the HFC (Hydrofluorocarbon) as a refrigerant with
.Hydrogen (H) fluorine (F) and carbon (C) is the element such as refrigerant
Tetrafluoroethane (R-134a)
2 like cool mix type zeolite a call. (Zeotropic blends)
.These substances are refrigerant substances derived from the chemical composition different from
.Two kinds of up to mix. A substance that mixed together may have the treasure as the refrigerant with the old use or may be อื่นก็ substances.While the change of state from 42 steam condensation of refrigerant liquid. Or from the refrigerant liquid boiling vaporization. The initial temperature and the temperature change of state (the last while Temperature glide) are very different, such as refrigerant, R-407CDifluoromethane (R-32) percentage 23 refrigerant Pentafluoroethane (R-125) and percentage 25 refrigerant Tetrafluoroethane. (R-134a) 52% by weight. The initial temperature and temperature while changing the status of 4 finally.9 C etc. due to water temperature and final temperature while changing the start state change. Do while changing the status of refrigerant mixture can be separated each otherSo when using refrigerant this group. When must fill the refrigerant refrigerant or taking out to do condition like liquid state cold there!
3 refrigerant mixture type semi acetate โอโท high clinic (Semi-azeotropic. Blends)
these substances as the refrigerant substances derived from the chemical composition different from
.Two kinds of up to mix. In the same way the refrigerant mixture type zeolite a call. Only the new refrigerant when used in refrigeration system While the change of state from steam condensation of refrigerant liquid.The initial temperature and the temperature change is little different final while status and can cut off ไม่นำ to thinking, such as refrigerant, R-404A A refrigerant with a mixture of refrigerant Pentafluoroethane (R-125 percentage 44.)Trifluoroethane (R-143a) and percentage 52 refrigerant. Tetrafluoroethane (R-134a) 4% by weight. The initial temperature and temperature while changing the status of 0 finally.7 to C etc. however when be adding refrigerant refrigerant or taking out should ทำในส of refrigerant liquid status as well as the refrigerant in a group called
.4 refrigerant mixture type acetate โอโท) (Azeotropic high blends)
these substances as refrigerant, derived from the สารที่มี chemical composition different from
.Two kinds of up to mix. In the same way the refrigerant mixture type zeolite a call. Only the new refrigerant when used in refrigeration system While the change of state from steam condensation of refrigerant liquid.The initial temperature and the temperature finally while changing the status will be the same value as the single ทำความเย็น substances such as refrigerant, R-502 A refrigerant with a mixture of refrigerant. Monochlorodifluoromethane (R-22) 48%.And 8 refrigerant Monochloropentafluoroethane (R-115) 51%.2 by weight, initial temperature and the temperature change of state of 0 last while water C etc.5 refrigerant organic group (Organic compounds)
these substances as a refrigerant containing organic inhabitants such as producers. (Butane)
6 refrigerant, the inorganic (Inorganic compounds)
.These substances as a refrigerant with inorganic elements as refrigerant
.The early used in refrigeration, such as ammonia, carbon dioxide, sulfur dioxide. Etc. because of refrigerant in this group are substances that can be dangerous.Currently available in industry cooling is mainly include ammonia, due to cheap and the specific heat of high
.7 refrigerant group organic unsaturated (Unsaturated organic compounds)
these substances as a refrigerant containing organic unsaturated components. Such as ethylene
(Ethylene) pro polypropylene (Propylene) etc.