Ground Source Heat Pump Technology And Its Advantages
Ground Source Heat Pump Is actually a very old technology
, 40 years have applied, only the last five years related technology development, to rapid commercialization. Ground Source Heat Pump name first appeared in a 1912 Swiss patent literature, 20th century Europe 50 years the use of ground source heat pumps there the first climax. In the meantime, Ingersoll and Plass Kelvin line source according to the concept of proposed underground penstock Heat exchanger The line heat source theory, but when low energy prices, the system of high cost, have not been widely used. 70's, the oil crisis to people's attention to the energy-saving, cost-effective use of energy, so that the development of ground source heat pump into the climax stage, then the amount of underground buried pipes has been replaced by early plastic pipe. During this period the establishment of a number of European level heat exchanger of ground source heat pump, but is mainly used for winter heating. The early 80s, the United States, Canada carried out for the Ground Source Heat Pump Heating and Cooling in the research work reported in the literature of many different types of ground source heat pump ground heat exchanger in the heat transfer process and the model, and run some projects summary and performance comparison.
U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (E PA ) Have confirmed that ground source heat pump system is the most efficient, most environmentally friendly hot water, heating and cooling systems. On the one hand it underground soil or rock is relatively stable to heat and temperature Air conditioning System can maintain efficient operation throughout the year, for the ground source heat pump to save electricity 20-50% of users.
Calculated results from the literature can be seen, multi-zone against the wind system, single-zone against the wind system, cold water system and multi-zone variable air source heat pump system is more efficient than were 1.54kw/ton, 1.40kw / tom, 1.23kw/ton and 0.88kw/ton, kw / ton, said power consumption kW / ton cooling capacity. Can be seen, compared with traditional air conditioning, ground source heat pump system is more efficient than the best.
The other hand, under the same conditions, using a ground source heat pump system can reduce maintenance costs of buildings. Ground source heat pump is durable, its mechanical moving parts are missing, all the parts are not buried in the ground is installed in the room, avoiding the bad weather outside, it can be guaranteed for 50 years underground, above ground can be guaranteed for 30 years, Therefore, ground source heat pump is maintenance-free air conditioning, saving maintenance costs, so that the user's investment can be recovered in about three years. Lincoln City and Nebraska on these two places and 20 schools had the air conditioning system maintenance costs of the investigation. This 20 schools using 4 different cooling methods: ground source heat pump system (G HP ), With hot water Boiler Air cooler (ACC / GHWB), the water cooler with hot water boiler (WCC / GHWB), with steam boilers of the water cooler (WCC / GSB). .
In Atlanta on every family with an annual cost of air-cooled heat pump system is 826 U.S. dollars, the cost of the ordinary air-conditioning system 686 U.S. dollars, using ground source heat pump system costs 397 U.S. dollars. Visible, ground source heat pump system operating cost compared to other air conditioning system is very low.
More importantly, ground source heat pump system uses Refrigerants Injection in the factory was completely sealed, no leakage during use, the user need not fill any time refrigerant, thus reducing damage to the ozone layer. The system can be used for different structures, different area of residential buildings, it can be installed in new building construction can also be used for the transformation of old buildings, its design flexibility makes it a very attractive air-conditioning options. Ground Source Heat Pump dehumidifiers have particular strengths, which makes it very suitable for hot and humid summer weather, if the air distribution device with air conditioner, ground source heat pump characteristics at this point will become more prominent, so to to indoor air quality standards, ground source heat pump system is a very good option.
Ground source heat pump is that there are more advantages, government offices, apartments and restaurants. According to the U.S. A civil power companies could be Oklahoma State's user surveys in the Red River Valley: If you want to 10 points within 1 minute rate, 99% of the ground source heat pump users of its cooling capacity during the summer to play for more than 8 points , 73% of users hit out of 10 points.
Ground Source Heat Pump Technology And Its Advantages
By: wuwu
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