Air source heat pump and solar hot water implementation of national standards - heat pump, solar - HVAC & R industry

Air source heat pump and solar hot water implementation of national standards - heat pump

, solar - HVAC & R industry

HC HVAC & R Network With Air Source Heat Pump Solar hot water system as the auxiliary heat source, solar water heating systems and air source heat pump combination is the most Energy The most Environmental protection The domestic hot water system. "China's solar thermal industry alliance Secretary-General Huozhi Chen said. In response to this combination of products, national standards?? GB/T23889-2009" household air source heat pump and solar water heating systems technology ", has been approved by national authorities, in June 1, 2009, and is on January 1, 2010 come into force. "implementation of the standard specifications to fill gaps in the industry, will guide the path of this energy-saving environmental protection industry is more regulated development. " Stressed auxiliary air source heat pump

System heating coefficient of performance (COP) is GB/T23889-2009 "household air source heat pump and solar hot water system technical conditions" in the development process the focus of discussion. Huozhi Chen said: "The first time, we will be heating coefficient of performance of the system as 7.0 (when the cumulative amount of solar radiation to reach 10Mj/m2 activate the pump, the water storage tank water temperature increased to 55 ), but some enterprises that performance disputed that the heating system should be adjusted to 6.0 coefficient of performance, but ultimately chose a higher standard of performance indicators. " Jiangsu Huayang Solar Energy Co., Ltd. Chief Engineer Huangkui Lin said: "Whether Heat pump water heater Or Solar water heaters Already have their own individual standards, the standards of this development mainly focuses on the combination heat pump and solar hot water system, the combination of system performance and test methods put forward specific requirements. "Reporters in the standard text that includes GB/T19141" technical conditions for domestic solar water heating systems, "including nearly 10 solar water heater standards were cited, the standard reference standards directly related with the heat pump only GB4706.32 "household and similar electrical appliances heat pumps, air conditioners and Dehumidifiers Special request "and GB/T18430" cold vapor compression cycle (heat pump) Part 2: Household and similar uses cold water (heat pump). " September 1, 2009 implementation of the GB/T23137-2008 "heat pump water heaters for household and similar purposes" and did not enter the standard normative reference document directory. "While the reference standards and reference to the heat pump water heaters and solar water heaters have been standard, but it is worth noting that solar water heating system should the main air source heat pump only as a supplementary heat source there is." Huozhi Chen stressed "In this composite system, the air source heat pump at the secondary position, in line with existing national standards, while heat pump, solar water heating systems to meet the normal operation." Many manufacturers head, told reporters that the standard provisions of the indicators is not high, their products can meet the standard requirements of the target, companies have to prepare for the implementation of standards. "Will air source heat pump and solar water heating systems combine the technical difficulty is not great, but compared to electric auxiliary heat, the specific process requirements or to be slightly higher, you need to water tanks, solar collectors and air source heat pump combined with into a coherent and stable water system. "Haining City, Hai-Bing Chen Jia Electric Appliance Co., Ltd general manager, said. Huozhi Chen said that both pressure systems, or non-pressure system, that is all-glass vacuum tube solar water heater, or a flat panel solar water heater, air source heat pump can be used both as an auxiliary heat source. The most energy efficient and environmentally domestic hot water systems

Currently rely mainly on household hot water heaters to provide household, electric water heater, gas water heater, solar water heaters, water heaters and heat pump water heater is the main product market. Among them, the first two water heaters and has broad applicability, but require the application of electricity and natural gas, Energy Consumption is relatively large; the latter two water heaters using solar energy and the environment is thermal, with significant energy saving features, but in specific applications have some limitations. It is understood that, in order to ensure the normal weather conditions, the use of solar water heaters usually equipped with electrical auxiliary heating device. "The air-source heat pump and solar water heating system is replaced with air-source heat pump as an auxiliary heat source heating, solar hot water system to ensure the stability of water supply to minimize power consumption." Huangkui Lin said, "Generally speaking, under the same conditions of use, the air source heat pump and electric heating power consumption of auxiliary heating only 1 / 3, shows that air source heat pump and solar water heater is the most energy efficient combination of the most environmentally friendly energy mix use patterns. " Although the air source heat pump solar hot water system has a high energy-saving environmental protection, but the cost of electricity than the average secondary-type solar water heater expensive. "To 150L of the product, for example, conventional electric assisted solar water heater market price of 4,000 to 5,000 yuan, while the air-source heat pump and solar water heating systems sold at 5,000 ~ 6,000 yuan." Hai-Bing Chen told reporters. Huozhi Chen said that the current air-source heat pump and solar hot water system has more than 100 manufacturing enterprises, mainly in southern China, such as Yunnan, Guangdong and Jiangsu, Zhejiang and other places, these provinces and territories to promote and effect of heat pumps are good area. Jiangsu Huayang Solar Energy Co., the Minister Bo said that comprehensive, Hua Yang in 2007 began production of such products, but production is not significant. He also stressed that while air-source heat pump and solar hot water systems large upfront investment, but if long-term use is still the lowest cost, most economical domestic water heating system. Addition, Huozhi Chen said, GB/T23889-2009 "household air source heat pump and solar hot water system technical conditions" applies only in the 600L water storage tank volume below the household air source heat pump and solar hot water system for the product engineering system (600L above) the national standards are being developed. Related Reading: Beware of "age" water heater become "invisible killer"

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