How about changing the water cooler to an air cooler?
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Due to the circulating water quality and prolonged continuous use, the coils of the water cooler tend to scale up, which reduces the efficiency of the heat exchanger! The high temperatures of summer have arrived now, and I plan to switch from a water cooler to an air cooler. I’m not sure what the results will be How to change it? What materials are needed? What device? Please share your opinions and discuss!
Replacing the water cooler with an air cooler – I’m not sure whether it’s a tube-type or U-tube type. In either case, removing the water-side shell section to achieve air cooling will certainly result in a lower cooling efficiency than before, as it’s summer and external temperatures are high. Both of these water coolers are designed for water cooling; generally, manufacturers of air cooling systems use fans to provide cooling beneath the tubes. I think it’s better to use a high-pressure cleaner to clean and maintain the water cooler, as this is cheaper and more effective than switching to air cooling. Last edited by Happy Island on 2009-4-7 06:11.]
The heat transfer capacity of each heat exchanger has been calculated; it’s likely not possible to simply replace the water coolers with air coolers while maintaining the original operating conditions. It is recommended to do the calculation.
The performance of an air cooler is definitely worse than that of a water cooler, and moreover, the specific heat capacity of air is much lower than that of water; simply making a change in this regard will certainly not meet the requirements!
That’s great; air cooling is an excellent option in the north, as it saves both water and electricity. It’s better to consult Luoyang Longhua directly (the company has a website that can be searched); their newly developed variable-frequency evaporative air-coilers have performed well in applications at Shandong Hongri.
It depends on the specific circumstances; air cooling can also suffer from scaling that reduces heat transfer efficiency, and it’s not easy to clean either, unless the air quality in that area is excellent.
A detailed calculation is required to determine whether a change is possible.
It’s very simple – just contact the air-cooling manufacturer based on the local wet-bulb temperature and the heat exchange area!
Air cooling can be divided into two types: dry air cooling and wet air cooling. In dry air cooling, the medium inside the tubes is cooled solely by air. Wet air cooling, on the other hand, relies on both air and a small amount of water to dissipate heat. In simple air cooling, it is the sensible heat of the air that is used to remove heat; due to the low heat capacity of air, a large volume of air is required to cool the same medium to the same temperature. As a result, air cooling systems are usually large in size, occupy a lot of space, and have many long tubes. To improve the heat transfer coefficient on the air side, fins are often added to the outside of the tubes to enhance heat transfer. In wet air cooling, the evaporation cooling method involves an upper section for air cooling and a lower section for evaporation. In the upper section, saturated moist air absorbs the heat from the medium inside the tubes, while in the lower section, it is the latent heat of vaporization of water that plays a role. Evaporation cooling requires more space than conventional water cooling, but less space than dry air cooling. If the modification mentioned by the poster involves switching to dry air cooling, there will likely be insufficient space, and it may not be possible to achieve an appropriate cooling temperature during summer. It is recommended to try using evaporation cooling instead.
It depends on the temperature of the material that needs to be cooled, the desired final cooling temperature, and the flow rate. When the temperature is relatively low, such as around 60 degrees, or when the desired final cooling temperature is low, around 30-40 degrees, air cooling is not very suitable. This is mainly due to process-related considerations; additionally, a low flow rate also makes air cooling unsuitable, primarily from the perspective of energy savings and costs.
In water-scarce areas, using air cooling is beneficial in terms of water conservation, but it requires a large amount of space and involves significant investment. In the water-scarce Northern Shaanxi energy and chemical industry base, large thermal power plants are required to use air cooling.
Dry air coolers occupy a large amount of space, and they often need to be used in combination with water cooling, as air cooling alone may not meet the design requirements in all situations. The one-time investment for air cooling is also high.
It should be understood that in summer, especially during the day, the temperature of the circulating water is much lower than the air temperature; using dry air cooling will only result in even worse performance compared to water cooling! ! ! The use of wet air cooling, that is, evaporative condensers, is also quite mature, but it is an integrated solution and does not allow the use of existing equipment.
Air cooling is more common in northern regions, where there is little water and low temperatures. The self-provided power plant in Shendong uses air cooling, but the equipment is large and the cost is high. If what the original poster suggests is implemented, the cost will likely be very high. It’s best to consult the equipment manufacturer to see what suggestions they have. Our factory’s water coolers have been used as circulating water heaters.
Our company uses air coolers, along with deionized water, which helps to reduce scaling on the tubes. Fans are installed on these tubes to ensure good cooling. I’m not sure though about the actual effects. Because we haven’t started operating yet, haha. . . . If a change is needed, it depends on the cost as well as the degree of cooling of the material. It is recommended to use high-quality water after cleaning the dirt.
Changing a water cooler to an air cooler, whether dry-type or wet-type, results in insufficient heat exchange tubes for the original water cooler. Regardless of the heat exchange efficiency, one unit is definitely not enough. If there is enough space, it’s better to install a new variable-frequency evaporative cooler.
No, the temperature does not meet the requirements; the circulating gas contains high levels of alcohol
Our company uses air coolers in the synthesis and distillation processes; it’s basically not feasible to use them on top of what already exists, so an alternative purchase is necessary.
Our factory is currently using evaporative air coolers for design purposes, but they haven’t been put into use yet, so we don’t know how effective they are. However, my colleagues say that the ones their factory used in the past worked well – they were more efficient than ordinary water coolers and also easier to adjust.
Replacing the water cooler with an air cooler is feasible in areas with a shortage of water resources, but after switching to air cooling, water cooling must be added to maintain the return temperature and thus ensure product quality.