A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that pumps heat to or from the ground. It uses the earth as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems, and may be combined with solar heating to form a geosolar system with even greater efficiency.

Geothermal heat pumps are also known by a variety of other names, including geoexchange, earth-coupled, earth energy or water-source heat pumps. The engineering and scientific communities prefer the terms "geoexchange" or "ground source heat pumps" because geothermal power traditionally refers to heat originating from deep in the Earth's mantle. Ground source heat pumps harvest a combination of geothermal power and heat from the sun when heating, but work against these heat sources when used for air conditioning.

The Direct exchange geothermal heat pump is the oldest type of geothermal heat pump technology. It is also the simplest and easiest to understand. The ground-coupling is achieved through a single loop circulating refrigerant in direct thermal contact with the ground (as opposed to a refrigerant loop and a water loop). The refrigerant leaves the heat pump appliance cabinet, circulates through a loop of copper tube buried underground, and exchanges heat with the ground before returning to the pump. The name "direct exchange" refers to heat transfer between the refrigerant and the ground without the use of an intermediate fluid. There is no direct interaction between the fluid and the earth; only heat transfer through the pipe wall. Direct exchange heat pumps are not to be confused with "water-source heat pumps" or "water loop heat pumps" since there is no water in the ground loop. ASHRAE defines the term ground-coupled heat pump to encompass closed loop and direct exchange systems, while excluding open loops.

The two main types of heat pumps are compression heat pumps and absorption heat pumps. Compression heat pumps always operate on mechanical energy (through electricity), while absorption heat pumps may also run on heat as an energy source (through electricity or burnable fuels).

A number of sources have been used for the heat source for heating private and communal buildings .

    * air source heat pumps (extracts heat from outside air)

          o air–air heat pump (transfers heat to inside air)
          o air water heat pump (transfers heat to a tank of water)

    * geothermal heat pump (extracts heat from the ground or similar sources)

          o geothermal–air heat pump (transfers heat to inside air)
                + ground–air heat pump (ground as a source of heat)
                + rock–air heat pump (rock as a source of heat)
                + water–air heat pump (body of water as a source of heat)
          o geothermal–water heat pump (transfers heat to a tank of water)
                + ground–water heat pump (ground as a source of heat)
                + rock–water heat pump (rock as a source of heat)
                + water–water heat pump (body of water as a source of heat)

from:china-heat-pump

The High and Mid-static pressure heat pumps are specially designed for European Family and office.

Duct air conditioner are the best design in the world with the following characters.

• 1.High efficiency with R410A refrigerant and optimized design.
• 2.Intelligent design for easy maintenance of whole unit and replacing filter.
• 3.Special design for cold winter and strong heating in super low temperature .
• 4.Smart design enable free electric box installation for both sides of the unit at the spot.
• 5.Two kinds of air pressure can be selected at the installation spot.
• 6.With advanced fresh air function keep our life more healthy.
• 7. Only 2/3 thickness of normal duct unit for easy installation and saving space.
• 8. Phone call remote control

 

 

• 2/3 of normal thickness for easy installation and saving space.
• With almost 2/3 of normal thinkness It provide the comfortable feeling for both installers and customers. Duct air conditioner are distributed in longitudinal way, that is most loved by the installation engineers for the convenience.
• 

 FROM: china-heat-pump

Heat pump systems are applied mostly in hot water supply,heating in HVAC and swimming pool temperature maintaining.Heat pump can replace oil-fired or gas-fired boilers in hotel,hospital,dormitory and gymnasium to reduce running cost.According to the application condition in buildings,heat pump systems can be classified into two typical categories which as air source and water source.Air source heat pump is easier to install and to use.But the problem is how to keep it operating at higher efficiency.On the otherhand,water source heat pump system is from time to time combined with HVAC system in building.It is more efficient than air source heat pump,even though there are more considerations need to consider in planning.

      A good solution for energy saving
     Chengda air water heat pump is anew generation heat pump product developed with the advanced heating technologies. The heat pump utilizes the energy from surrounding air and converts the energy to the hot water for house heating and domestic hot water supplying. The whole range of this heat pump is completed and strictly tested with our European partners, to make sure the best efficiency and quality to European market. especially for cold areas. With wide running temperature range from -15? to 40?,keep supplying the warm water from 35? to 60?(max), making you warm and comfortable life.
     All main components such as Copeland, Siemens, Danfoss, Wilo. All products offer maximum efficiency together with total reliability and manufactured to the highest quality standard.

 

      Outstanding performance
          o High efficiency and energy saving
          o R407C refrigerant
          o Maximun outlet water temperature up to 60?
          o Stepped fan motor
          o Expansion valve keeps the most suitable refrigerant flow in any case
          o Water flow protection, high/low pressure protection, outlettemp protection etc, keeping the system safety.

     High Quality and reliability
          o stainless steel plate heat exchanger with maximum permitted pressure 40 bar
          o 100% stainless water circuit
          o Microprocessor control and error alarm and display
          o Compact design, easy installation and maintenance
          o World-known brand compressor, pump and main components

Flexible installation

Heat pumps are suitable for many different heating systems to heat the house or produce hot water.

     Connected with an exist boiler or replace the old electric/gas/oil heater.
     Installed for house heating and hot water supplying.
     Installed together with a solar heating system.
     Installed for swimming pool heating (closed water circuit)



From: china-heat-pump.com

Air source heat pumps

Heat your home with energy absorbed from the air around you

Air source heat pumps absorb heat from the outside air. This heat can then be used to warm water for radiators or underfloor heating systems, or to warm the air in your home.

How do air source heat pumps work?

An air source heat pump extracts heat from the outside air in the same way that a fridge extracts heat from its inside. It can extract heat from the air even when the outside temperature is as low as minus 15° C.

There are two main types:

·               An air-to-water system uses the heat to warm water. Heat pumps heat water to a lower temperature than a standard boiler system would, so they are more suitable for underfloor heating systems than radiator systems.

·               An air-to-air system produces warm air which is circulated by fans to heat your home.

The efficiency of air source heat pump systems is measured by a coefficient of performance (CoP) - the amount of heat they produce compared to the amount of electricity needed to run them. A typical CoP for an air source heat pump is around 2.5.

The benefits of air source heat pumps

·               Reduce your fuel bills: air source heat pumps run on electricity, so there's no need to pay for gas, oil or solid fuels to heat your home.

·               Cut down on wasted electricity: heating your home with an air source heat pump is much more efficient than using electric radiators.

·               Save space: an air source heat pump system is compact, and requires no storage space for fuel.

Is an air source heat pump suitable for my home?

To tell if an Air source heat pump is right for you, there are a few key questions to consider:

·               Do you have somewhere to put it? You'll need a place outside your house where a unit can be fitted to a wall or placed on the ground. It will need plenty of space around it to get a good flow of air.

·               Is your home well insulated? Since air source heat pumps produce less heat than traditional boilers, it's essential that your home is insulated and draught proofed well for the heating system to be effective.

·               What fuel will you be replacing? The system will pay for itself much more quickly if it's replacing an electricity, Liquid Petroleum Gas (LPG) or coal heating system than a gas one.

·               What type of heating system do you want? Air source heat pumps are much better at powering underfloor heating systems or warm air heating than radiator-based systems.

·               Is the system intended for a new development? Combining the installation with other building work can reduce the cost of installing the system.

To find out more about whether an air source heat pump is suitable for your home, use our energy selector tool - coming soon.

Costs and savings

Costs for installing a typical system suitable for a detached home range from about £5,000 to £10,000 including installation. Running costs for space heating are likely to be around £440 per year. This will vary depending on a number of factors - including the size of your home and how well insulated it is.

Savings can be considerable - up to 6 tonnes of CO2 and £870 per year for a system that replaces an electric heating system.

Fuel Displaced	£ Saving per year	CO2 saving per year
Gas	£300	830 kg
Electricity	£870	6 tonnes
Oil	£580	1.3 tonnes
Solid	£280	5 tonnes

All savings are approximate and are based on an air source heat pump providing 100% of space heating in a detached property.

To reduce your home's CO2 emissions further, consider installing solar electricity or some other form of renewable electricity generating system to power the compressor and pump.

 From: http://www.china-heat-pump.com/news/index.html

Recently, the weather becomes so cold. Becouse winter starts. All of us feel cold in the office, we need Ceiling air conditioner .But none of all knows which air conditioner to buy. So i will give you some details below:

Character distinguish from similar products (1)High efficiency with R410A refrigerant,Japanese brand compressor and optimized design.
# (2)Intelligent design for easy maintenance of whole unit and replacing filter.
# (3)Special design for cold winter and strong heating in super low temperature as north Europe.
# (4)Phone call remote control provide the most convenient operation for the consumer.
# (5)Wide angle of air flow, Auto swing assure the comfortable feeling.
# (6)Elegan appearance for beautiful decoration
# (7)Self trouble diagnosis for convenience of maintenance and trouble solvissng. 

Floor-ceiling Technical Parameter
Item	Model	18K(230V)	24K(230V)	28K(230V)	32K(230V)	32K(380V)	45K(380V)	60K(380V)
Cooling capacity	W/h	5191.5	7233	7806.4	8294.7	8294.7	11940
Heating capacity	W/h	5338.4	7750	8605.8	8853	8853	13805
EER	W/W	2.81	2.94	2.55	2.83	2.83	2.45
COP	W/W	2.99	3.33	3.2	3.3	3.3	2.96
Pated input power/current w/a	Cooling	1847/6.34	2460/10.7	3.64/13.7	2934/13	2934/4.9	4867/8.4
	Heaing	1787/8.13	2331/10.14	2686/12.2	2650/11.8	2650/4.6	4702/8.2
Indoor Unit
Power Supply	880	1450	1450	1450	1450	1450	1800
Air quantily(m3/h)	81/66/58	115/100/90	115/100/90	115/100/90	115/100/90	115/100/90	171/167/160	215/200/185
Fan power(Kw)	0.369/0.325 /0.294	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.50 /0.42	0.788/0.768 /0.735	215/200 /185	0.955/0.88 /0.821
NoiseB(A)	≤42	≤45	≤45	≤45	≤45	≤45	≤48	≤48
Net dimension (L*W*H)(MM)	900*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1670*245 *680	167*245 *680
Net weight(Kg)	25	40	40	40	40	40	45	45
Packing dimension (L*W*H)(MM)	995*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1760*765 *311	1760*765 *311
Gross weight(Kg)	30	45	45	45	45	45	50	50
Outdoor Unit
Power Supply	230v/1/50	230V/1/50	230V/1/50	230/1/50	230V/1/50	380V/3/50	380V/3/50	380V/3/50
Retrigerant	R-410A
Note: 1.Ceiling air conditioner:indoor dry bulb temperature is 27?,indoor wet bulb temperature is 19?, outdoor dry bulb temperature is 35?,outdoor wet bulb temperature is 24?. 2.Nominal heating conditions:indoor dry bulb temperature is 20?,indoor wet bulb temperature is 15?, outdoor dry bulb temperature is 7?,outdoor wet bulb temperature is 6?.

 From: http://www.blogigo.com/ceiling_air_conditioner

Until the 1990s, the refrigerants were often chlorofluorocarbons such as R-12 (dichlorodifluoromethane), one in a class of several refrigerants using the brand name Freon, a trademark of DuPont. Its manufacture was discontinued in 1995 because of the damage that CFCs cause to the ozone layer if released into the atmosphere. One widely-adopted replacement refrigerant is the hydrofluorocarbon (HFC) known as R-134a (1,1,1,2-tetrafluoroethane). R-134a is not as efficient as the R-12 it replaced (in automotive applications) and therefore, more energy is required to operate systems utilizing R-134a than those using R-12. Other substances such as liquid R-717 ammonia are widely used in large-scale systems, or occasionally the less corrosive but more flammable propane or butane, can also be used.

Since 2001, carbon dioxide, R-744, has increasingly been used, utilizing the transcritical cycle. In residential and commercial applications, the hydrochlorofluorocarbon (HCFC) R-22 is still widely used, however, HFC R-410A does not deplete the ozone layer and is being used more frequently. Hydrogen, helium, nitrogen, or plain air is used in the Stirling cycle, providing the maximum number of options in environmentally friendly gases. More recent refrigerators are now exploiting the R600A which is isobutane, and does not deplete the ozone and is friendly to the environment.

Air source heat pump are relatively easy (and inexpensive) to install and have therefore historically been the most widely used heat pump type. However, they suffer limitations due to their use of the outside air as a heat source or sink. The higher temperature differential during periods of extreme cold or heat leads to declining efficiency, as explained above. In mild weather, COP may be around 4.0, while at temperatures below around −8°C (17°F) an air-source heat pump can achieve a COP of 2.5 or better, which is considerably more than the COP that may be achieved by conventional heating systems. The average COP over seasonal variation is typically 2.5-2.8,[9] and high efficiency model in Japan over 6.0(2.8kW) written in the IPCC 4th Working Group III report chapter 

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Character distinguish from similar products
• (1)High efficiency with R410A refrigerant,Japanese brand compressor and optimized design.
• (2)Intelligent design for easy maintenance of whole unit and replacing filter.
• (3)Special design for cold winter and strong heating in super low temperature as north Europe.
• (4)Phone call remote control provide the most convenient operation for the consumer.
• (5)Wide angle of air flow, Auto swing assure the comfortable feeling.
• (6)Elegan appearance for beautiful decoration
• (7)Self trouble diagnosis for convenience of maintenance and trouble solvissng.

Floor-ceiling Technical Parameter
Item	Model	18K(230V)	24K(230V)	28K(230V)	32K(230V)	32K(380V)	45K(380V)	60K(380V)
Cooling capacity	W/h	5191.5	7233	7806.4	8294.7	8294.7	11940
Heating capacity	W/h	5338.4	7750	8605.8	8853	8853	13805
EER	W/W	2.81	2.94	2.55	2.83	2.83	2.45
COP	W/W	2.99	3.33	3.2	3.3	3.3	2.96
Pated input power/current w/a	Cooling	1847/6.34	2460/10.7	3.64/13.7	2934/13	2934/4.9	4867/8.4
	Heaing	1787/8.13	2331/10.14	2686/12.2	2650/11.8	2650/4.6	4702/8.2
Indoor Unit
Power Supply	880	1450	1450	1450	1450	1450	1800
Air quantily(m3/h)	81/66/58	115/100/90	115/100/90	115/100/90	115/100/90	115/100/90	171/167/160	215/200/185
Fan power(Kw)	0.369/0.325 /0.294	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.50 /0.42	0.788/0.768 /0.735	215/200 /185	0.955/0.88 /0.821
NoiseB(A)	≤42	≤45	≤45	≤45	≤45	≤45	≤48	≤48
Net dimension (L*W*H)(MM)	900*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1670*245 *680	167*245 *680
Net weight(Kg)	25	40	40	40	40	40	45	45
Packing dimension (L*W*H)(MM)	995*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1760*765 *311	1760*765 *311
Gross weight(Kg)	30	45	45	45	45	45	50	50
Outdoor Unit
Power Supply	230v/1/50	230V/1/50	230V/1/50	230/1/50	230V/1/50	380V/3/50	380V/3/50	380V/3/50
Retrigerant	R-410A
Note: 1.Nominal cooling conditions:indoor dry bulb temperature is 27?,indoor wet bulb temperature is 19?, outdoor dry bulb temperature is 35?,outdoor wet bulb temperature is 24?. 2.Nominal heating conditions:indoor dry bulb temperature is 20?,indoor wet bulb temperature is 15?, outdoor dry bulb temperature is 7?,outdoor wet bulb temperature is 6?.

Reprinted from: China palm's Floor ceiling air conditioner

Horizontal Air Conditioner

1.Pre-compact type unit (easily convertible into split units)
2.Low-profile design for installation in suspended ceiling
3.Copeland scroll Compressor high efficiency and reliability.
4.Ease of installation and flexibility
5.Wide range of air flow and pressures available
6.Programmable electronic controller for easy handling
7.Wide range of application (up to 49C outside temperature cycle in cooling)
8.Sockets for external maintenance and service

Model		H-048-410	H-060-410	H-072-410	H-090-410	H-110-410
Capacity	Houting w	10.400	13.150	15.130	19.090	22.620
		12.100	15.300	17.600	22.200	26.300
	Cooling w	10.750	13.760	15.910	19.950	23.390
		12.500	16.000	18.500	23.200	27.200
Input power and current	Frio w	5.100	6.800	7.400	8.950	10.850
	Cator w	4.750	6.000	6.800	8.400	10.400
	H Amp	14.1/14.0	18.0/17.6	18.8/18.4	17.8/17.4	21.1/20.4
Voltage		400v/11/50hz
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*1.420			1.650*625*1.790
Net weight Kgs		263.000	276.000	284.000	403.000	410.000
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*565
Circulation Air		2.400	3.300	3.300	4.400	4.800
Presion Estatica Disponible		7	9	9	11	13
Net weight Kgs		87	92	94	118	120
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*850
Circulation Air		3.800	4.950	4.900	6.400	7.200
Presion Estatica Disponible		5	5	6	6	7
Net weight Kgs		176	184	190	285	290
Compressor type		Scroll	Scroll	Scroll	Scroll	Scroll

We,China palm,also supply Ceiling air conditioner,cassette air conditioner,floor fan coil,air to water heat pump etc.
Welcome to visit our website, http://www.china-heat-pump.com, to get more infomation about all types Air Conditioner


Reference from: Horizontal Air Conditioner