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Types of heat pumps

Posted by china heat pump on Tuesday, December 15, 2009 3:46:32 AM

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)


Smart Combination of
*Air conditioning heating
*Air conditioning cooling
*And Clean Sanitary Water Heat Pump Heater.
Two Water Tanks Built Inside. Seperate Water Cycle For Air Conditioning and Domestic Water.
5 Times Energy Saving as Normal Gas or Petrol Heater.
1/4 OF Normal electricicty power Bill Help You to Win the Whole Unit Free In One Year. 
 

          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


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Multifunctional Heat Pumps

Posted by china heat pump on Tuesday, December 01, 2009 10:15:04 PM

Heat pump technology is closely watched around the world in recent years of new energy technologies.
By people familiar with the "pump" is a can increase the potential energy of the machinery and equipment, such as water pumps are mainly high water pumped from the low.
 
The "heat pump" is a natural from the air, water or soil to obtain low-grade heat energy, through electricity doing work, providing that can be used by people of high-grade heat energy devices. Heat pumps work as a natural phenomenon, as the flow of water from the lower height, as heat always flows from the high temperature low temperature zone. But people can create the machine, as the water from the lower elevated to high places and the use of pumps, as used heat pumps can pump heat from low to high temperature.

 
Therefore, to enhance the heat pump is essentially a device is the role of heat pumps absorb heat from the surrounding environment, and to pass it to the heated objects (temperatures higher objects), it works the same with the refrigerator are in accordance with reverse Carnot cycle work, the only difference lies in working temperature range is different. Heat pump at work, as part of its own consumption of energy, the energy stored in environmental media should be digging through the circulatory system to improve heat transfer working fluid temperature to use, but the entire heat pump power consumption of devices in the output power is only a small part of the Therefore, the use of heat pump technology can save a lot of high-grade energy.
 
In operation, evaporator to draw heat from the surrounding environment in order to evaporation refrigerants, refrigerant vapor compressed by the compressor temperature and pressure rise, high-temperature vapor condensed into liquid through the condenser, the release of heat transfer to the storage tank of water. After condensation heat transfer working fluid through the expansion valve back to the evaporator, and then by evaporation, so on ad infinitum.
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Heat Pump Technology

Posted by china heat pump on Tuesday, June 16, 2009 11:00:00 AM
    Heat flows naturally from a higher to a lower temperature. Heat pumps, however, are able to force the heat flow in the other direction, using a relatively small amount of high quality drive energy (electricity, fuel, or high-temperature waste heat). Thus heat pumps can transfer heat from natural heat sources in the surroundings, such as the air, ground or water, or from man-made heat sources such as industrial or domestic waste, to a building or an industrial application. Heat pumps can also be used for cooling. Heat is then transferred in the opposite direction, from the application that is cooled, to surroundings at a higher temperature. Sometimes the excess heat from cooling is used to meet a simultaneous heat demand.
    In order to transport heat from a heat source to a heat sink, external energy is needed to drive the heat pump. Theoretically, the total heat delivered by the heat pump is equal to the heat extracted from the heat source, plus the amount of drive energy supplied. Electrically-driven heat pumps for heating buildings typically supply 100 kWh of heat with just 20-40 kWh of electricity. Many industrial heat pumps can achieve even higher performance, and supply the same amount of heat with only 3-10 kWh of electricity.
    Because heat pumps consume less primary energy than conventional heating systems, they are an important technology for reducing gas emissions that harm the environment, such as carbon dioxide (CO2), sulphur dioxide (SO2) and nitrogen oxides (NOx). However, the overall environmental impact of electric heat pumps depends very much on how the electricity is produced. Heat pumps driven by electricity from, for instance, hydropower or renewable energy reduce emissions more significantly than if the electricity is generated by coal, oil or gas-fired power plants.
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Air source heat pumps

Posted by china heat pump on Wednesday, June 03, 2009 10:57:00 AM

   An air source heat pump can provide efficient heating and cooling for your home, especially if you live in a warm climate. When properly installed, an air source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel, like in combustion heating systems.

   Although air source heat pumps can be used in nearly all parts of the United States, they do not generally perform well over extended periods of sub-freezing temperatures. In regions with sub-freezing winter temperatures, it may not be cost effective to meet all your heating needs with a standard air source heat pump.

   However, new systems with gas heating as a backup are able to overcome this problem. There is also a "Cold Climate Heat Pump" which shows promise, but is currently facing manufacturing problems. In addition, a version called the "Reverse Cycle Chiller" claims to be able to operate efficiently at below-freezing temperatures.
 
   All we know that, the heat pumps need energy. When we enjoy the convenience brought by heat pumps, we also should remember saving energy. So we have a good solution for energy saving:
  • A good solution for energy saving
  • Chengda air to 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 from our world-known manufacturing partners such as Copeland, Siemens, Danfoss, Wilo. All products offer maximum efficiency together with total reliability and manufactured to the highest quality standard.
  • Outstanding performance
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European – Air To Water Heat Pump

Posted by china heat pump on Wednesday, December 24, 2008 9:00:00 AM

Summary
The purpose of the project was to build a low energy and low cost prefabricated house without compromising the comfort. Due to the overall reduced energy consumption in low energy houses the proportion of the heat required for DHW increases from 30% to 40%. This sets new requirements for a heating system. In this residence there are two air to water  heat pumps: one for heating (from October to April) and the other for DHW (DHW; all year round).


The former uses outdoor air and the latter indoor exhaust air as its heat source. The SPF of the 4.6 kW heat pump for space heating is 3.0. If auxiliaries such as fans for heat recovery and standby losses of the water heater are considered as well the SPF drops to 2.0.

China Palm are mainly researching and manufacturing heat pump energy-saving products and commercial air conditioners
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What is Heat Pump? (From Daikin Website)

Posted by china heat pump on Wednesday, November 19, 2008 11:00:00 AM
Question: What is a heat pump?

Answer: Heat pumps extract low temperature energy from the environment and increases its temperature for heating purposes. Heat pump efficiencies are normally quoted as the coefficient of performance of the system, these are typically in the range 3 to 5. In other words, extracting heat from renewable sources requires just 1kW of electrical input in order to generate 3kW to 5kW of heating output. Heat pump systems therefore, are 3 to 5 times more efficient than fossil fuel boilers and are more than capable of warming a house completely, even during the lowest winter temperatures. The increasing popularity of these heating systems is reflected by their overwhelmingly successful application in the cold climates of Scandinavia.

China Palm supplies professional heat pumps.
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