In the heat exchange equipment of chiller refrigeration equipment, coolers and condensers are one of the important parts in the heat exchange process, and are products with a very high usage rate. But no one knows the difference between cooler and condenser designs. I will focus on this point today.
1. Presence or absence of phase change
A condenser condenses the gas phase into a liquid phase. Cooling water only changes its temperature and does not change its phase, so the difference between a condenser and a cooler is that the cooling medium is different, so the fields of application are different and the uses are also different. The condenser changes the gas phase. Condensation, phase change, etc. He cooler literally means used to cool materials without undergoing a phase change.
2. Difference in heat transfer coefficient
Generally speaking, since the heat transfer film coefficient of the condensation process is much larger than that of the cooling process without phase change, the total heat transfer coefficient of the condenser is generally much larger than that of the simple cooling process, sometimes an order of magnitude larger. The condenser is generally used to cool the gas into a liquid, and the condenser shell is usually very hot. The concept of a cooler is relatively broad, mainly referring to a heat exchange device that converts a hot cold medium into room temperature or a lower temperature.
3. Heat exchanger in series
If there are two heat exchangers in series, how to distinguish the condenser from the cooler?
You can look at the caliber. Generally speaking, the ones with roughly the same caliber are coolers, and the ones with small outlets and large inlets are generally condensers, so the difference can generally be seen from the shape of the equipment.
In addition, encounter the situation where two heat exchangers are connected in series. Under the condition of the same mass flow rate, since the latent heat is much higher than the sensible heat, under the same type of heat exchanger, the larger heat exchange area is the condenser.
The condenser is a heat exchange device that condenses the gaseous material into a liquid material by absorbing the heat of the gaseous material. There is a phase change, and the change is quite obvious.
The cooling medium can directly or indirectly absorb heat from the condensed medium, but there is no change in phase change. The cooler only reduces the temperature of the cooled medium without phase change. In the cooler, the cooling medium and the cooled medium are generally not in direct contact, and the heat is transferred by tubes or jackets. The structure of the cooler is much more complicated than that of the condenser.
The above is the detailed difference between the condenser and the cooler. Foshan Naihai Dongxu Hydraulic Machinery Co., Ltd. is a manufacturer of oil/air coolers, oil coolers, water coolers and other products. You can search for company names to provide you with cooler selection and quotation services.
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Post time: Sep-18-2023