{"id":13878,"date":"2025-05-23T15:52:36","date_gmt":"2025-05-23T07:52:36","guid":{"rendered":"https:\/\/www.lneya.com\/?p=13878"},"modified":"2025-12-03T16:37:55","modified_gmt":"2025-12-03T08:37:55","slug":"what-are-refrigerant-and-coolant-in-refrigeration-system","status":"publish","type":"post","link":"https:\/\/tw.lneya.com\/ja\/blog\/what-are-refrigerant-and-coolant-in-refrigeration-system.html","title":{"rendered":"\u51b7\u51cd\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u51b7\u5a92\u3068\u51b7\u5374\u5264\u3068\u306f\uff1f"},"content":{"rendered":"\n

What Are Refrigerant And Coolant In Refrigeration System?<\/p>\n\n\n\n

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Many people have trouble distinguishing between refrigerants and coolants. This blog post explains the definitions of both, highlights the key differences between them, and explores their respective roles in a chiller\u2019s refrigeration system.<\/p>\n\n\n\n

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What Is Refrigerant?<\/h1>\n\n\n\n

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We know that in nature, heat always flows from warmer areas to cooler ones. What makes a refrigerant unique\u2014and earns it the name\u2014is its ability to reverse this natural flow. A refrigerant is capable of taking in heat from colder air and discharging it into warmer air. In effect, it extracts “cooling” from warm air by redirecting the flow of heat. This ability to create a cooling effect even in a hot environment is what defines a refrigerant.<\/p>\n\n\n\n

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What Is Coolant?<\/h1>\n\n\n\n

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A coolant plays only a supporting role in refrigeration systems. Its primary function is to carry and transport heat from a higher-temperature area to a lower-temperature one. It simply serves as a medium for the natural flow of heat.<\/p>\n\n\n\n

For instance, in the refrigeration cycle system of a chiller, heat from the object being cooled is first transferred to the coolant. The coolant then carries that heat to the refrigerant, which is at a lower temperature. Throughout this process, the direction of heat transfer always follows nature\u2019s rule\u2014moving from high temperature to low temperature.<\/p>\n\n\n\n

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Refrigerant VS Coolant: Understanding The Difference<\/h1>\n\n\n\n

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Refrigerants, also known as cooling media, play a key role in chiller refrigeration systems<\/a> by absorbing, transferring, and releasing heat. During operation, the refrigerant undergoes phase changes as it switches between liquid and gas states.<\/p>\n\n\n\n

In general, refrigerants are expected to have excellent thermodynamic properties. Specifically, the critical temperature should be higher than the condensation temperature, and the saturated pressure at the condensation point should not be excessively high. Optimal refrigerants also feature a low normal boiling point, low specific heat capacity, low adiabatic index, high heat transfer per unit volume, high thermal conductivity, low viscosity, low density, and robust chemical stability.<\/p>\n\n\n\n

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However, a coolant functions like a delivery agent, carrying the cooling energy generated by the refrigeration system to the areas requiring temperature control. During this process, the coolant remains in the same phase and does not undergo any phase change.<\/p>\n\n\n\n

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LNEYA’s refrigerants are independently developed, environmentally friendly and efficient<\/figcaption><\/figure>\n<\/div>\n\n\n

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What Are The Common Types Of Refrigerant Used In Industrial Chillers?<\/h1>\n\n\n\n