Ma Jun, head of surface evaporative air cooler technology, said: "This equipment can only recover the investment of equipment in one year." Surface evaporative air coolers have many advantages, such as high efficiency, under the same conditions. The cooling efficiency is more than 4 times higher than that of the old air cooler; the energy saving is more, the energy consumption can be reduced by about 30% under the same conditions, especially in line with the current demand for energy conservation; the environment is good, some old water-cooled air coolers are used every hour. Thousands of tons of water are used for cooling, and these waters are polluted, which affects the environment after discharge. The water of the surface evaporative air cooler is recycled by itself and does not discharge waste water.
The brazed Plate Heat Exchanger (BPHE) is a type of heat exchanger construction in which metal plates with flat surface offer an effective and efficient method of heat transfer. These plates are joined together by brazing (mainly copper), typically stainless steel. Due to the close contact between the two surfaces, there is a very high heat transfer coefficient, leading to a low overall unit size. They therefore provide much greater efficiency than a Shell And Tube Heat Exchanger.
Brazed Plate Heat Exchangers are widely used in air-conditioning and refrigeration, power generation, and other process applications. For example, within a cooling cycle, a BPHE can be used to transfer heat from one fluid to another. Typical fluids in such coils and systems are either glycol or water. In a power system, a BPHE can be used to cool oils, recirculating lubricants, fuels, and other fluids.
The major advantages of BPHE are their compact size, efficient heat transfer and minimal pressure loss. BPHEs also have low maintenance requirements and a long service lifetime. Furthermore, because of their flat surface design, BPHEs have no patterns or turns and thus lower energy costs and minimize fouling. Finally, the material used in BPHEs makes them resist to corrosion and heat, making them ideal for high temperature and hostile environments.
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