An air-source heat pump (ASHP) is a type of all-in-one heat pump that absorbs heat from a colder place and releases it into a warmer place using the same vapor-compression refrigeration process and same external heat exchanger with a fan as used by air conditioners. Unlike an air conditioning unit, however, it is able to both warm and cool buildings and, in some cases, also provide domestic hot water. Then, let’s introduce in detail what are the specific functions of ASHP?
Here is the content list:
What is the operation principle of ASHP?
How does ASHP work in extreme cold conditions?
What is the service life of ASHP?
Air at any temperature above absolute zero contains some energy. An air-source heat pump is a kind of all-in-one heat pump that transfers some of this energy as heat from one place to another, for example between the outside and inside of a building. This can provide space heating and hot water. A single system can be designed to transfer heat in either direction, to heat or cool the interior of the building in winter and summer respectively. For simplicity, the description below focuses on use for interior heating.
The technology is similar to a refrigerator or freezer or air conditioning unit: the different effect is due to the physical location of the different system components. Just as the pipes on the back of a refrigerator become warm as the interior cools, so an ASHP warms the inside of a building whilst cooling the outside air.
The main components of an air source heat pump are:
1. An outdoor heat exchanger coil, which transfer extracts heat from ambient air
2. An indoor heat exchanger coil, which transfers the heat into hot air ducts, an indoor heating system such as water-filled radiators or underfloor circuits, and a domestic hot water tank.
Air source heat pumps can provide fairly low-cost space heating. The high-efficiency heat pump can provide up to four times as much heat as an electric resistance heater using the same amount of electricity. The lifetime cost of an air source heat pump will be affected by the price of electricity compared to gas (where available). Burning gas or oil will emit carbon dioxide and also nitrogen dioxide, which can be harmful to health. An air-source heat pump issues no carbon dioxide, nitrogen oxide, or any other kind of gas. It uses a small amount of electricity to transfer a large amount of heat: the electricity may be from a renewable source, or it may be generated from power stations that burn fossil fuel.
An air-source heat pump designed specifically for very cold climates can extract useful heat from ambient air as cold −30 °C (−22 °F). Manufacturers include Mitsubishi and Fujitsu. One Mitsubishi model provides heat at −35 °C, but the coefficient of performance (COP) drops to 0.9, indicating that resistance heating would be more efficient at that temperature. At −30 °C, the COP is 1.1, according to the manufacturer's data (the manufacturer's marketing literature also claims a minimum COP of 1.4 and performance to −30 °C). Although air-source heat pumps are less efficient than well-installed ground source heat pumps in cold conditions, air-source heat pumps have lower initial costs and may be the most economic or practical choice.
A study by Natural Resources Canada found that cold climate air-source heat pumps (CC-ASHPs) work in Canadian winters, based on testing in Ottawa (Ontario) in late December 2012 to early January 2013 using a ducted CC-ASHP. (The report does not explicitly state whether backup heat sources should be considered for temperatures below −30 °C. The record low for Ottawa is −36 °C.) The CC-ASHP provided 60% energy savings compared to natural gas (in energy units). When considering energy efficiency in electricity generation, however, more energy would be used with the CC-ASHP, relative to natural gas heating, in provinces or territories (Alberta, Nova Scotia, and the Northwest Territories) where coal-fired generation was the predominant method of electricity generation. (The energy savings in Saskatchewan were marginal. Other provinces use primarily hydroelectric and/or nuclear generation.) Despite the significant energy savings relative to gas in provinces not relying primarily on coal, the higher cost of electricity relative to natural gas (using 2012 retail prices in Ottawa, Ontario) made natural gas the less expensive energy source. (The report did not calculate the cost of operation in the province of Quebec, which has lower electricity rates, nor did it show the impact of time of use electricity rates.) The study found that in Ottawa a CC-ASHP cost 124% more to operate than the natural gas system. However, in areas where natural gas is not available to homeowners, 59% of energy cost savings can be realized relative to heating with fuel oil. The report noted that about 1 million residences in Canada (8%) are still heated with fuel oil. The report shows 54% energy cost savings for CC-ASHPs relative to electric baseboard resistance heating. Based on these savings, the report showed a five-year payback for converting from either fuel oil or electric baseboard resistance heating to a CC-ASHP.
Air source heat pumps can last for over 20 years with low maintenance requirements. There are numerous heat pumps from the 1970s and 1980s in the United States that are still in service in 2012even in places where winters are extremely cold. Few moving parts reduce maintenance requirements. However, the outdoor heat exchanger and fan must be kept free from leaves and debris. Heat pumps have more moving parts than an equivalent electric resistance heater or fuel burning heater. Ground source heat pumps have fewer moving parts than air source heat pumps as they do not need fans or defrosting mechanisms and are located indoors. The ground array for a ground source installation should last for over 100 years.
Air source heat pump is our life simpler and more convenient, has become an indispensable electrical appliance in our life. Its widespread use has helped many people in extreme weather. It not only regulates temperature but also provides hot water, making it a better presence than air conditioning. If you are in all-in-one heat pump and air source heat pumps business, you can consider our cost-effective products.
The year 2020 was a milestone year in the development process of the enterprise. Over the past 20 years, Micoe has experienced unforgettable events. Let’s take a look back at the top 10 stories that deserve to be remembered and inspire us.
1.In 2007, Micoe became one of the first batch of China's space industry partners, leading China’s thermal industry into the ‘space era’! On January 5, 2017, Micoe was promoted as a strategic partner of China’s aerospace industry, marking a further upgrade of the relationship between Micoe and China’s aerospace industry.
The heat pump is a high-efficiency energy-saving device that makes full use of low-grade heat energy. A swimming pool heat pump is an important application.
Here is the content list:
1. What are the performance characteristics of swimming pool heat pumps?
2. What are the classifications of swimming pool heat pumps?
1.The recovered heat is used to heat the swimming pool air or pool water through the regeneration system to ensure that the indoor air is at a constant temperature. The condensed
water produced by de-temperature can be directly discharged outdoors or recycled into the swimming pool to supplement the pool water.
2. Considering the operating cost of the swimming pool heat pump unit, a large amount of outdoor fresh air with low humidity can be used to adjust the humidity of the indoor air in spring and autumn to reduce the operating cost of the swimming pool heat pump.
1. In the process of promotion to the urban market in recent years, the swimming pool heat pump, which is mainly targeted at middle and high-end consumer groups, has stood out from the encirclement of solar energy, gas boilers, and coal-fired boilers. With its advantages of safety, energy-saving, and convenient operation The dark horse's posture occupies the high ground of the transition to "low carbon and energy-saving". His working principle is to absorb low-temperature heat energy in the air and convert it into high-temperature heat energy after being compressed by a compressor to heat the water temperature. The initial investment of a swimming pool heat pump is three to five times that of gas, natural gas, and electric water heaters, but its daily operating costs are lower. Therefore, swimming pool heat pumps will surely become the leading products in the hot water market in the future.
2. Swimming pool heat pumps can be divided into air source swimming pool heat pumps; water source swimming pool heat pumps; soil ground source swimming pool heat pumps;
According to the purpose of the swimming pool heat pump system, it can be divided into independent swimming pool heat pump hot water system; swimming pool hot water and air-conditioning combined swimming pool heat pump system;
The swimming pool heat pump technology adopts the principle of reversed Carnot cycle. Under the promotion of high potential energy, heat flows from a low heat source to a high heat source, which means that the heat source that cannot be directly used is converted into a usable high-grade heat source, so as to achieve partial savings. One-time high-level energy technology.
It is the responsibility of each manufacturer to produce a swimming pool heat pump that meets the standards to ensure the healthy development of the swimming pool heat pump market. MICOE conducts a large number of quality inspections on the swimming pool heat pump before leaving the factory, and the quality assurance rate is guaranteed. If you are engaged in the swimming pool heat pump business, you can consider using our cost-effective products.
From authoritative attestation to market application, Micoe air source heat pump withstand the test of comprehensive and strict, Micoe will be based on the two large air source heat pump production bases, the accumulation of technological advantages, continue to lead the industry development of high quality, keep up with the development of The Times theme, boost national "double carbon" strategic goal, to "clean world, better life" the mission of unremitting struggle, Focus on the future.
Hefei general machinery product certification co., LTD. (GC) abbreviations is registered by the administrative department for industry and commerce, the national certification and accreditation supervision and administration commission (CNCA) approval of the China's conformity assessment (CNAS) national approval committee, with independent legal status of third-party certification body, established in 2000. GC certification center can carry out including China energy-saving product certification, CCC certification, China RoHS certification, characteristic certification, green building materials product classification certification and other professional certification.
Set simulation environment parameters
This qualification marks that Micoe Air aSource Heat Pump 250kW comprehensive performance Laboratory has the ability to simulate and test all urban environmental climates in China. For Micoe air source heat pump research and development level and product quality to provide a strong technical support, help to win the trust of government departments, all walks of life, enhance their market competitiveness.
Laboratory simulation of blizzard conditions - detect frost formation
Micoe Air Source Heat Pump 250kW Comprehensive performance laboratory includes 30HP and 60HP two specifications laboratory, in strict accordance with the national standard for 3-30HP air source heat pump unit and 3-60HP air source heat pump unit, water source heat pump unit, chiller testing and calibration. The 30HP laboratory has additional explosion-proof laboratory function, which can carry out combustible refrigerant unit test, and the 60HP laboratory has noise laboratory function, and the background noise can be at least 40 decibels below. The laboratory has been built for many years. With rich research experience and advanced technical capabilities, it possesses technical advantages such as cold source cluster regulation, complex environment artificial simulation, multi-cooling domain variable capacity cooling, and dynamic simulation of air conditioning load, which reflects the strong comprehensive competitiveness of Micoe.
Micoe North Air Source Heat Pump Production Base
As a comprehensive service provider of low-carbon and clean energy, Micoe has always been committed to breaking through the ultra-low temperature barrier with technological innovation and promoting the development of the industry with high-quality products. Micoe aijia 2 series air energy cooling and heating machine, under the working condition of -12℃, the comprehensive energy efficiency of heating reaches 3.26, exceeding the 3.2 requirements of the national first level energy efficiency, COPh≥2.65, nominal heat 20kW; The machine adopts EVI air jet enthalpy increasing technology to increase refrigerant circulation by 20% and realize quasi-two-stage compression to ensure that the machine can operate effectively at -35℃. At the same time, the machine has three-minute intelligent defrosting technology, which reduces energy consumption and ensures the comprehensive heating effect of the unit in the cold environment. This technology also won the first prize of scientific and technological invention of China Refrigeration Society in 2021.
Micoe Shunde Air Source Heat Pump Production Base
From authoritative certification to market application, Micoe Air Source Heat Pump has withstood the comprehensive and strict test. Relying on the two major air energy production bases in the North and south, Micoe will continue to accumulate technological advantages, continue to lead the high-quality development of the industry, conform to the development theme of The Times, and help achieve the national "dual carbon" strategic goal. To "clean the world, better life" mission unremitting struggle, committed to the future.