建筑给水管生命周期能耗分析方法及应用

建筑给水管材的选用对于建筑节能具有十分重要的现实意义。传统的建筑给水系统设计中管材的选用主要考虑其使用性能和一次性成本,忽视了不同的管材在整个生命周期过程中的能耗差异。本文首先运用生命周期评价方法有效地比较分析了建筑给水管材在其生命周期各个阶段的能耗,为建筑给水节能设计提供了一种全面有效的方法。而后从工程实际出发选择了2种常见的建筑给水管材并进行了生命周期能耗分析比较,得出在实现同等供水功能的前提下,镀锌钢管比硬聚氯乙烯给水管材生命周期能耗大。

Analysis Method and Application of Life Cycle Energy Consumption for Building's Water Supply Pipe

The selection of building's water supply pipe is of great practical significance to building energy conservation.For the traditional design of supply water system,it was usually focused on functional performance,nonrecurring cost of pipes,and the energy consumption difference of different pipes during the whole life cycle process was ignored.The method of life cycle assessment can effectively analyze and compare the energy consumptions of building's water supply pipes at each stage during life cycle process,and therefore,a fully and effective method of energy conservation for building supply water system can be provided.In this paper,the life cycle energy consumption analysis and comparison of two kinds of building pipes were conducted.The results indicated that the life cycle energy consumption of galvanized steer pipe was larger than that of PVCU pipe under the same condition of water supply capacity.