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Latest European Developments in the Field of Electronic Allocation of Costs by Hydronic Systems 欧洲在水力循环系统成本电子分配领域的最新进展
今天看来,空间供暖成本分配的目标应该是按个人消费进行成本分配。不应再适用按居住面积计算的统一费率。以消费为导向的成本分配激励人们节约能源,因为他们的节约会减少开支。1979年7月,德意志联邦共和国颁布了法律法规,规定了以消费为导向的成本分配。这些规定对国家支持的房屋有效。一九八一年初,这些措施亦会扩展至私人住宅楼宇。 在小型生活单元中,通过可校准热量计量进行供暖成本分配非常昂贵。在德国,将散热器连接到垂直分配管的普通温水管道系统禁止使用热量表。图1示意性地显示了一栋三层建筑的热水分配系统,其中每层都安装了S形散热器。每套公寓安装几个热量表是不经济的。图2显示了使用热量计量的理想分配系统。每套公寓只需要一个热量表。 由于热量表的投资价格在400马克及以上,这种投资加上额外的安装成本更有意义。由于通过水流量和温差的时间积分测量热量是一种众所周知的技术,因此这里将不再进一步讨论热量表的相关问题。此外,将不描述蒸发热量表。下面的文章集中讨论电子供暖成本分配系统,简称ELHACA系统。直到最近才有一些长期以来已知的不可校准的热量- 计量方法重新引起人们的兴趣,并随着一些新技术的应用而进一步发展。这些电子系统在实践中没有得到广泛测试。因此,目前尚无法对其长期特性进行评论,例如对修复的敏感性。但肯定有可能指出它们的工作原理和优缺点。如果对原型进行了测量,结果将在演示中给出。引用:俄亥俄州辛辛那提市ASHRAE学报第87卷第2部分
Space-heating cost distribution as viewed today should aim at a cost distribution according to individual consumption. A flat rate according to living area should no longer be applied. Consumption-oriented cost distribution motivates people to save energy because their savings result in decreased expenses.In July 1979, legal regulations were enacted in the Federal Republic of Germany which provide a consumption-oriented cost distribution. These regulations are valid for houses supported by the state. They will also be extended to private residential buildings in early 1981.Heating cost distribution in small living units by means of calibratable heat metering is expensive. In Germany the common warm water pipe system connecting the radiators to vertical distribution pipes prohibits the use of heat meters. In Fig. 1 the warm water distribution system is schematically shown for a 3 storey building, where S radiators are mounted on each floor. The installation of several heat meters per flat is uneconomical. Fig. 2 shows a desireable distribution system for the use of heat metering. There is only one heat meter necessary for each flat. With investment prices for heat meters from DM 400 and up, this investment plus additional installation costs is more meaningful.The problems concerning-heat meters will not be dealt with further here since the measurement of heat by time integration of water flow rate and temperature difference is a well known technique. Also the evaporative heat meters will notbe described. The following paper concentrates on Electronic Heating Cost Allocation Systems, abbreviated ELHACA Systems.Only recently have some of the long known non-calibratable heat-metering methods been taken up with renewed interest and developed further with some new technologies applied. These electronic systems are not widely tested in practice. So it is not yet possible to comment on their long-range properties, e.g. susceptibility to repairs. But it is certainly possible to point out their working principles and their advantages and disadvantages. If prototypes were measured, the results will be given in the presentation.
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