建築設計導入雨水利用系統評估方法之研究

Evaluation Method of Rainwater Use System for Building Design

水資源的日益枯竭，已成為二十一世紀全球性的環境問題之一，國內近年來經濟及生活水準持續成長，使得水資源需求量快速增加，但受限於自然環境之條件，可開發的水資源愈來愈少。本論文為了提供綠建築設計實務之應用技術，擬從建築師及設計工程師的觀點，建立建築物導入雨水利用系統設計之降雨基礎資料，以提供各類型建築導入雨水利用之定量評估與設計決策參考。由本研究設置之雨量計實測結果所推算之降雨量與實驗裝置累積收集雨量資料之分析檢討得知，建築物在導入雨水利用系統時，集水面積設置位置之風向及鄰近建築方位高度等均會影響集水區域之收集雨水量，環境條件應該明確納入評估檢討的要項之一。根據案例試算之結果，基本上驗證本研究提出之雨水利用評估方法的可行性，並適用於建築設計上導入雨水利用系統之評估試算。本論文所提之評估方法與程序，有別於多數既有文獻以最大雨水收集利用量為判斷依據之觀念，以電腦快速運算特性及保留各種設計條件之適應彈性，可以做為建築師在實際設計應用上快速且量化之決策評估參考。

Owing to the exhaust of water resource, water shortage had become one of the critical global issues in twenty-one century. On the other hand, the domestic water demand is also increasing under the serious situation of water shortage. This paper focuses on the application of rainwater use system for green building concept and offered an evaluation method in practical building design for architect or designer. At first, we arrange the local precipitation as the calculation base and conform the feasible parameters. According to the experimental results, we found that the surroundings of building and situation of wind would affect the quantity of rainwater collection for utilization. After the cases study and practical calculation, we verified the submitted calculation process and evaluation method in this paper are workable. We also conformed its speedy and flexible character in quantitative evaluation for the application of decision-making in building design, and that is quite different consideration from previous research and documents.