Another way: air source heat pump for hot water
Yesterday (May 8, 2006) was informed that Guangzhou is currently stepping up its technological breakthroughs and hopes to overcome the shortcomings of "inadequate separation of high-rise buildings, dense residential areas and sunshine resources in Guangzhou" with the technology of "solar + air source heat pump." Preliminary statistics, household use of new water heaters, electric water heaters than ordinary 3/4.
It is understood that the Guangdong Provincial Department of Construction currently on the one hand embarked on the preparation of "public and residential building solar hot water system integration design, construction and acceptance of procedures" to eliminate solar installations "accidentally into illegal construction" embarrassment, on the other hand is also Consider whether the introduction of mandatory requirements, requiring public buildings such as schools, hospitals, restaurants, and 12-storey residential buildings, one after another to install solar energy-saving water heaters.
But attentive citizens found that there was no "residential building above 12 storeys" in the buildings that encouraged the introduction of solar installations. The experts explained that high-rise by the heat, inevitably encounter the "rooftop dispute": a ladder of eight 32-story residential, there are 256 households, and the rooftop can be installed solar collector space, but hundreds Square meter, it is impossible to ensure that every household hot water.
Guangzhou City Wall Office to do the introduction of the relevant person in charge, they are considering "solar + air-source heat pump" water heater technology, is expected to solve the "roof dispute." According to preliminary estimates, the use of new technology at home, each household equipment costs about 5,000 yuan, with ordinary solar water heaters. Compared to the electric water heater, this heater provides the same amount of hot water, can save 3/4.
At present, Guangzhou has a lot of places to adopt this new technology, which is better applied to the South Hospital. Air source heat pump works, like the air conditioner installed in turn. This method of making hot water, the temperature up to 60 ℃, coupled with the help of solar energy devices for the whole building to provide enough hot water is not a problem.
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