Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-01-12 Hits: Popular:AG11 battery
Heat pump technology is a technology that flows heat from a low-level heat source to a high-level heat source under the drag of high potential energy. It can convert low-grade thermal energy that cannot be used directly (such as air, soil, water, solar energy, industrial waste heat, etc.) into usable high-level energy, thereby achieving the purpose of saving part of the high-level energy (coal, oil, natural gas, electricity, etc.) .
The use of low-energy heat pump technology can save fuel, rationally utilize energy, and reduce environmental pollution, as a way to pay equal attention to energy conservation and environmental protection. Studies have shown that compared with the energy consumption of regional boiler rooms, the energy consumption of a heat pump station with the same capacity: when using river water (5~6.6℃) as the low-level heat source, the annual coal saving rate is 12.68~14.08%; when using seawater (12~ When 13.6℃) is used as the low-level heat source, the annual coal-saving rate is 21.59-39.98%; when industrial wastewater (18-20℃) is used as the low-level heat source, the annual coal-saving rate is 39-39.98%.
The efficiency of the heat pump is related to the temperature difference between the indoor and outdoor environments of the building. The smaller the temperature difference, the higher the efficiency of the heat pump. Studies have shown that from the perspective of defrosting during winter operation of the heat pump unit, the use of air source heat pumps is not only related to the outdoor temperature, but also closely related to the relative humidity of the outdoor atmosphere, which greatly limits its scope of use. Using a ground source heat pump system, since the temperature of the soil is closer to the indoor temperature than the outdoor air temperature, if properly designed, the ground source heat pump can have higher efficiency and better reliability than the air source heat pump.
In addition, because the heat capacity of water with the same volume flow is 3500 times that of air, the heat exchange effect between water and refrigerant is much better than the convection heat exchange between air and refrigerant. Therefore, the heat exchange coil of a ground source heat pump is better than that of an air source heat pump. Being much smaller and having fewer components, a geothermal heat pump system can have lower operating costs.
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