標準號：DIN EN 15316-2-3-2007
中文標準名稱：建筑物的供熱系統.系統能量要求和系統功效的計算方法.第2-3部分:對流式供暖分配系統
英文標準名稱：Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies - Part 2-3: Space heating distribution systems; German version EN 15316-2-3:2007
標準類型：P46
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：P46
國際標準分類號：91.140.10
引用標準：EN 12831
適用范圍：This European Standard provides a methodology to calculate/estimate the system thermal loss of water baseddistribution systems for heating and the auxiliary energy demand, as well as the recoverable part of each. Theactual recovered energy depends on the gain to loss ratio. Different levels of accuracy, corresponding to theneeds of the user and the input data available at each design stage of the project, are provided in thisEuropean Standard by different calculation methods, i.e. a detailed calculation method, a simplified calculationmethod and a method based on tabulated values. The general method of calculation can be applied for anytime-step (hour, day, month or year).Pipework lengths for the heating of decentralised, non-domestic ventilation systems equipment are to becalculated in the same way as for water based heating systems. For centralised, non-domestic ventilationsystems equipment, the length is to be specified in accordance with its location.NOTE It is possible to calculate the system thermal loss and auxiliary energy demand for cooling systems with thesame calculation methods as shown in this European Standard. Specifically, determination of auxiliary energy demand isbased on the same assumptions for efficiency of pumps, because the efficiency curve applied is an approximation forinline and external motors. It needs to be decided by the standardisation group of CEN, whether or not the extension forcooling systems should be made in this European Standard. This is also valid for distribution systems in HVAC (in ducts)and also for special liquids.