To know the ground supply heat pump prior to I commence to look at ground source heat pump and air supply heat pump's advantages and disadvantages of comparison, we are able to readily obtain days of ground supply heat pump has the benefit using the past.

Ground source heat pumps air source heat pump with the comparison has many positive aspects: (1) Annual temperature fluctuations modest. Higher temperature than the air temperature in winter and summer than the air temperature is low, so ground supply heat pump heating, cooling coefficient is higher than air source heat pump, and may be greater than 40%, thereby saving power and costs about 40%. (two) Winter doesn't have to have defrosting, minimizing the loss of frosting and defrosting. (three) towards the function of the source has better storage.

Classification of ground source heat pump systems and their respective positive aspects and disadvantages

1) Groundwaterheatpumps, GWHPs groundwater heat pump technique, also known as the deep recharge water source heat pump program. Group by way of the construction of a pumping groundwater out by way of the secondary heat exchanger or directly sent for the water source heat pump units, by extracting heat or release heat, by the injection well back underground irrigation group.

The greatest benefit is very economical, small footprint, but ought to meet the following criteria in mind: fantastic water good quality; water-rich; recharge reliable; meet the standards.

two) (a) Horizontalground-coupledheatpump level of heat pump program (b) Verticalboreholeground-coupledheatpump vertical heat pump program. (A) and (b) two ways subsumed within the Ground-coupleheatpumpsGCHPs (ground coupled heat pump system), also known as ground source heat pump technique buried form. There is certainly a different term called Groundheatexchanger underground heat exchangers of ground supply heat pump technique. The closed technique strategy, via the middle of medium (normally water or antifreeze is added water) as a heat carrier towards the middle of media within the buried soil inside the closed circulation loop as a way to attain the heat exchange with the ground soil purposes.

For vertical pipe system, its positive aspects are: much less land occupation, much less piping and pump power, the drawback is higher drilling charges; for horizontal pipe program, its advantages consist of: installation charges than vertical buried control system of low, wide, easy-to-master user, its shortcomings are: location and are subject to significant surface temperature, water pumps, substantial power.

three) Surface-waterheatpumps, SWHPs surface water heat pump system. Collected via direct or indirect heat transfer implies, such as use in the river, river, lake, reservoir water and sea water as a heat pump source. Way attributable to the water supply heat pump.

The benefits are: ten meters or deeper inside the lake, offering direct 10 cooling, underground pipe program investment than smaller, lower power consumption, water pump, high reliability, low upkeep specifications, low operating costs, in warm region, the lake can do heat, its shortcomings are: the lake in shallow water, the coil can easily be destroyed, because a bigger temperature adjustments, will reduce the unit's efficiency.

4) Standingcolumnwellheatpumps, SCW single nicely for bustling, nicely, which is, single-tube vertical heat pump, in a foreign country generally referred to as "hot wells." This way, the water table above sets as steel jacket, and pore size consistent; groundwater level following the all-natural hole, without any cementing facility. Heat pump water directly into the upper hole, portion from the surrounding rock into the water table the following heat, the rest from the side wall using the soil heat transfer. Following the heat transfer fluid in the hole in the bottom towards the bottom in the back by means of the buried pipe was taken as a heat pump water supply. This method is mainly applied in rock strata, the typical pore size of 150mm, hole depth 450m.

The program is appropriate for the geological area, the rock drilling expenses in the region, whereas the direct heat exchange with the rock, which greatly enhance the efficiency of heat transfer and saving drilling, pipe charges. Be topic to pay attention to analysis of distinct geological conditions, great insulation, sealing, filtration, heat transfer calculations and so the actual distinct function.

five) boiler / cooling tower buried underground combined with hybrid ground source heat pump technique: suitable for smaller space, can not stand alone system working with underground heat exchangers inside the developing or outside location winter a big quantity of out there heat within the constructing, cooling towers and closed loop cooling systems integration and cost savings; the fact that the method is high efficiency, low expense.

It added that there are water supply heat pumps, solar energy, electric boiler, urban heat network...... the added heat from the cooling tower or water supply to solve. The technique style needs detailed calculation from the seasonal heat and heat, and total and within the heat right after the heat or the row to pick the heat source and cooling towers.