【 Weak current College 】 vigilance "building energy-saving 50%" overextension

If the rules for the implementation of the energy saving standard blank status, energy-saving integrated assessment system of vacancy phenomenon cannot change as soon as possible, so that energy can become a numbers game — watch out "energy saving 50%" going through the "energy saving 50%" is a hot topic in the near future. The national departments of standard expression was "to promote new residential and public buildings strictly implement energy saving 50% of the design standards". 　　However as promoting energy saving of "hard bars bars", the standard implementation of inconsistency: some said "have achieved", said "could not be implemented under the existing conditions." 　　Many building experts believe that State-saving requirements, the key is the follow-up of a series of basic work must keep pace with the current guard building energy-saving 50% into the "numeric", going through play. Energy-saving 50%: not implemented?? it is understood that, at present the Design Institute, Shanghai formal in a new architectural design has considered energy conservation requirements, specialized service companies providing energy saving calculation, energy-saving design of the software, a line parameter design staff is provided by software for design of parameters. 　　Therefore, the key is to make energy saving calculation of reference and its understanding of scientific nature and accuracy. According to the Ministry of construction on 1 October 2001 for the hot summer and cold winter region residential building energy-saving design standards "," baseline architecture "is" in the 1980 's the beginning of reform and opening up the construction of residential areas, "according to the residential buildings in traditional envelope, in the main bedroom winter guaranteed 18 ° c, 26 ° c in summer, the winter energy efficiency ratio 1 electric heater, summer energy efficiency ratio of air-conditioning cooling, 2.2 calculate an annual energy consumption for heating, air conditioning, as a basis for energy consumption, as 100%. 　　On that basis decide on the new design of the building's thermal engineering, heating and air conditioning parameters to reduce by 50%. July 1, 2005 the Ministry of public building energy-saving design standards, similar to the 1980 's the beginning of reform and opening up the construction of public buildings as a comparison of energy consumption of the "baseline architecture". 　　In keeping with the current standard conventions of indoor environment parameters, new public buildings to this "base building" parameter adjustment, according to the provisions of the energy-saving 50% design. Participation in the editor in Chief of the national norms of building energy saving China Academy of building No.7 two experts told reporters, according to the national norms, Shanghai area currently standardized new buildings, has largely been achieved energy saving 50% of the target. This goal is accomplished through two approaches: one is to achieve "baseline architecture" of indoor temperature and lighting conditions, the current Shanghai in new building in the use of HVAC equipment and lighting equipment energy efficiency ratio, than the 1980s of similar devices improve half or even a few times, so automatic implements energy saving target of 50 per cent. The second is building its own envelope for energy saving. 　　Since the original Shanghai building envelope without insulation, energy consumption is very high, after much renovation, has taken shape in the Shanghai area of envelope energy-saving technology system, this system of thermal index theory has energy-saving 50% can be achieved. However, to participate in the Shanghai people's political Consultative Conference on building energy-saving specific survey of experts after the demonstration of multiple visits that: "the Shanghai building energy saving target of 50 per cent had not been achieved, not only now but it is very difficult to implement. "Experts say: winters in northern China, must use the HVAC equipment, therefore, as long as the national provisions for building energy saving achievements is a" solid manner "; and the South of the Yangtze River is very different, in the early 1980s, Shanghai little family hotel with air conditioning, air conditioning restaurant with no common, winter and summer Shanghai indoor temperatures rarely reach" baseline architecture "requirement 18 ° c and 26 ° c, that's Shanghai people indoors with" winter eatin, summer hit the fan, "soil to keep out the cold and the summer. 　　Therefore, the household appliances and high-efficiency ratio, is unable to reach the unused or rarely used air-conditioning energy saving 50% of the time. It seems that life comfort requirements, measure, the conclusions are diametrically opposed. 　　Many experts emphasized that national requirements for building energy-saving 50% should be a real holding gain savings of energy, instead of virtual statistics. Energy-saving standards need to refine the Design Institute co., Ltd. in Shanghai, a senior architect said, today's architectural requirements and 1980s compared to the early days of reform and opening up great changes have taken place, in many cases a lack of comparability. 　　Developer requirements are more diverse and demanding, to allow designers to meet the requirements of architectural features and styling, the HVAC, electrical, building towards, shape coefficient, and a series of strict control of the data at the same time being met only through computer simulation, recourse to constantly various parameters of the calculation of the integrated energy-saving targets, like a "computer digital game". 　　This senior architects, from 1986 to the present, countries have been gradually introduced nine regulations on energy efficiency in buildings, but implementation perspective, these rules need concreteness, operability further improved, in particular the detailed rules for the implementation of the energy saving standard blank status changes, shall, as soon as possible in order to ensure the reliability of the energy saving effect. Shanghai Municipal Committee of the research group of the energy-saving building experts believe that the realization of building energy saving target of 50%, there are a lot of work did not follow. Specific performance has four aspects: first, the existing regulatory lag, such as the existing regulations, the wall thickness of 35 cm, and the use of high-quality insulation material, thickness more than 35 cm, is in conflict with the existing regulations; secondly, the high cost of energy-saving materials, developers are not ready to use. In order to save costs, now developer Jerry, almost do not celebrate the insulation wall, only four North or West, North, two aspects; third, energy-efficient household appliances often "energy-saving money is not, in the section" active life savings in electricity often arrive not buy household appliances is a one-time fee to pay more, people are reluctant to purchase; fourth, energy efficient building construction difficult, the construction and the construction site of the General Administration of quality supervision, in the absence of laws and regulations, such as energy-saving buildings to use insulation mortar mixing ratio by effectiveness when mixed with plastic particles, construction job very troublesome, but mixed with many who fly less, "conscience" randomnessBig. 　　Basic research question to strengthening Shanghai Government staff officer, architecture planning expert Professor Fu Kecheng, in order to ensure the implementation of energy-saving targets, in addition to the necessary legislation to force developers to use energy-saving building envelope, HVAC equipment, lighting equipment, and forces the market to improve household appliances to ensure market supply on the threshold of energy-saving appliances are, the Ministry of construction also must organize experts settled down to do a study on energy consumption due to the current architecture of the many new design factors. Fu Kecheng said that the pursuit of luxury, our many cities in large public buildings with large public space, super high Hall, closed glass curtain wall, translucent roof and other design. 　　In response to this phenomenon, the State must be introduced in line with China's national conditions and requirements of the scientific development concept design index system, such as: how many people flow in buildings, to achieve both energy conservation, and gives rise to a sense of fashion and not oppressed sense, public space that much, until the height of the lobby is reasonable; for example, using glass curtain wall of high-rise buildings and the collection of large space, how to use natural ventilation and natural lighting system, will make you feel comfortable and save energy and so on, these need to conduct scientific experiments. Liu Hao Jiang Shanghai architectural design Institute co., Ltd believes that the serious lack of comprehensive assessment system for building energy-saving, energy-saving targets also resulted in the execution of arbitrary. At present, after the completion of the housing, the developers cannot provide building energy consumption of basic data, but only to the individual energy-efficient building envelope, etc as signs to marketing results. A set can give developers, designers and builders a fair evaluation and selection is based on comprehensive assessment system, still needs a solid foundation for the study.