The Need For A Condenser

The necessity of the condenser is based on the second law of thermodynamics - according to the second law of thermodynamics, the spontaneous flow direction of thermal energy inside a closed system is one-way, that is, it can only flow from high heat to low heat, and in the microscopic world, the microscopic particles that carry thermal energy can only from order to disorder. Therefore, while a heat engine has energy input to do work, the downstream must also release energy, so that there will be a gap in thermal energy between upstream and downstream, the flow of thermal energy will be possible, and the cycle will continue.

Therefore, if you want the load to do work again, you must first release the heat energy that is not completely released, and then you need to use the condenser. If the surrounding heat energy is higher than the temperature in the condenser, in order to cool the condenser, it is necessary to do artificial work (usually using a compressor). The condensed fluid returns to a state of high order, low thermal energy, and can do work again.

The choice of condenser includes the choice of form and model, and determines the flow and resistance of cooling water or air flowing through the condenser. The choice of condenser type should consider the local water source, water temperature, climatic conditions, as well as the size of the total cooling capacity of the refrigeration system and the layout requirements of the refrigeration room. On the premise of determining the type of condenser, the heat transfer area of the condenser is calculated according to the condensation load and the heat load per unit area of the condenser, so as to select a specific type of condenser.