1. Water: Water is a commonly used working fluid with good heat transfer performance and stability, inexpensive and easy to obtain. However, water has a lower boiling point and is suitable for efficient heat transfer at low temperatures.
2. Aqueous Ethylene Glycol Solution: Aqueous ethylene glycol solution has a high boiling point and low freezing point, which provides efficient heat transfer at low temperatures and is suitable for low temperature cooling systems.
3. Freon and other refrigerants: Freon and other refrigerants have a lower boiling point and high heat transfer efficiency, and are suitable for efficient and high temperature heat transfer applications.
The heat transfer capabilities of water and oil are usually compared by quantifying the heat capacity. The thermal capacity is equal to the mass of the product atheat multiplied by the specific heat of the fluid multiplied by the temperature difference during the heating process.
When using water (thermal conductivity (W/(m·K), 30 ? C): 0.62802) as a heat transfer fluid, it is not necessary to replace the seal and the heat transfer effect is better and more precise, so the water has stronger thermal conductivity.