Heat recovery systems home energy prices temporarily people first
Recently, the Beijing municipal government invested 200 million yuan subsidy of solar hot water system, the city limits of two new rooms, common commercial housing and existing housing is available to the industry or the Housing Authority management application for the grant. So, how the existing residential buildings to install solar hot water system? There are also measures to achieve what room does the provision of energy saving lives after the introduction of energy saving Home Once again become a hot topic. It's knowledge, involve high-tech energy-efficient home, but these techniques have limitations on the installation of either, or the current relatively high price for ordinary people is still only a "lug" to accept.
Solar hot water system Install deposit limit Works: It is understood that solar hot water system is divided into three parts: solar collector using solar light shines on the surface after vacuum tube into the heat absorption, heat conduction within the tube core media (water or water-soluble antifreeze); cycle and control thermal media and the water tank for heat exchange of the container, the cooling medium is returned to collector tube, and then complete the cycle of heating and cooling; storage tanks within the thermal medium through the coil or external heat exchanger, heating the water tank. After the three parts of the cycle, cold water into the system became hot. In the process, even if the intensity of the sun's radiation is not enough solar energy can warm the water tank, hot water can reduce the need for producing the auxiliary energy consumption.
Advantages: Solar inexhaustible, is a clean Energy If used as a living hot water, auxiliary heating and swimming pool heating, can effectively reduce the coal, Oil Natural gas produced during combustion of carbon dioxide and other hazardous gases, can effectively protect the environment, which is the Government's strong support for the development of solar energy industry one of the important reasons.
Shortage and restrictions: in Beijing, solar water heating systems have a large collector, if all at the top of the building, enough space can not meet the water needs of all users, only the villa to meet this condition. Currently, most apartments do not allow property owners to install separately.
Although there is a small wall mounted solar water heater, solar collector can be installed on the balcony, does not affect the architectural appearance, but can only meet two people to use water. The higher the cost of this water heater, some of 1 million. Products currently on the market are mostly Project Use very little retail.
In the north, winter is the time most in need of water, but the same time in the sun light intensity is not high, making solar hot water system efficiency greatly reduced; summer sun, when the highest intensity, but the people at this time hot water demand is not too high. Insiders believe that if the technology of solar hot water system can achieve cool in the summer, it will use the prospect of better and more meaningful.
Shading system Choice in shade Works: shading system can play a role in the heat barrier. Indoor and outdoor sun shade systems and skylight shade. Divided into shade blinds and roller shutter. Indoor roller blind which is divided into manual, electric roller blind; outdoor roller blind into folding arm, vertical arm, outrigger-style, roll-type shades. If you set the outdoor shade systems, before the sun's rays reach the glass window has been blocked; room through the window shade can also reflect back the sun light. Meanwhile, the sun cut off the UV system can effectively protect people from harm. The most important is that the sun shading system can reduce the thermal radiation on the building and construction around the ambient temperature, reducing building heating and cooling loads have an important role, thus achieving energy saving purpose.
Advantages: The energy, the system is better than indoor outdoor sun shade systems. Shading system can minimize direct sunlight to avoid overheating room is hot summer and cold winter and the summer heat of the main building measures. In general, shading coefficient of the smaller, through the enclosure structure of the solar radiation heat the smaller, better insulation effect. Data show that, outside shade system will reduce indoor temperatures 7-8.
Shortage and restrictions: Beijing's more windy weather, outdoor shade over only 3 floors below the floor too high can not be installed, so much for the high-end villas; ordinary apartment can be used indoor shading systems such as shutters, shutter, etc. .
Cost: due to materials, technology, different, costs vary widely. With a 1.5 meters wide, 3 meters high windows, for example, the shading system prices from 600 yuan to 10,000 dollars.
Heat recovery fresh air system Be Decoration Before installation Works: The power saving fan with no heat exchange core, to maintain a positive pressure room, so that fresh outdoor air into the room while discharging polluted indoor air, two-way ventilation and purification.
Advantages: Ensure that the indoor air fresh, while polluted air with fresh air in turn, through the heat exchange core to retain or distribute heat through the windows open for ventilation than for room heat loss or summer to direct hot air come in, the savings the cooling and heating costs, achieve energy-saving effect.
Shortage and restrictions: the need to note that heat recovery ventilation system needs to be designed and installed before the renovation, or late can only use simple air system, fail to effect heat exchange.
Cost: the cost of the system currently in 100-200 yuan / square meters, the price is relatively high.
Insulation system Home renovation can be achieved
Works: maximize the insulation properties of walls to prevent heat loss in winter, is also an important energy saving practices.
Advantages: This method when the owner can decide on the decoration, not too many constraints. Housing construction in the good things when they do the best insulation system, insulation system, or if there is no external thermal insulation system ineffective, the owners renovation in the wall near the north wall inside the heat to do that directly in the wall after playing the keel inside the ladders and other insulation material, filling a real seal on the wall then plasterboard.
Shortage and restrictions: single metal frame plus noise rock wool insulation wall thickness of about 68 mm after treatment, the smaller housing space.
Cost: Single metal frame plus noise rock wool insulation in the walls cost 100-400 yuan / square meters.
Windows system Select closed system
Works: broken bridge aluminum windows + double insulated glass windows high structural strength, good thermal insulation, integrated high-performance, now more common in some high-end residential
I am http://www.chinaprintingnet.com/ China Print Net writer, reports some information about http://www.chinaprintingnet.com/toolbox_fuel_tank-sale/ toolbox fuel tank , http://www.chinaprintingnet.com/stainless_tool_chest-sale/ stainless tool chest.
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