“水效率”是许多绿色、高性能建筑标准中的一个代码部分，如ASHRAE 189.1、国际绿色建筑规范（IGCC）、LEED（R）绿色建筑评级体系、加利福尼亚州标题24-2013，是拟议的ASHRAE 191水资源高效利用标准的唯一重点。上述规范和标准中的水效率部分涉及景观灌溉、高效管道装置的使用和水计量领域。这些固定装置和装置的影响已被充分理解，并对用水产生了可量化的影响。根据ANSI/ASHRAE/USGBC/IES标准189，本会议论文研究了暖通空调系统中使用的蒸发散热设备的“水效率”要求。 1-2011高性能绿色建筑设计标准和国际绿色建筑规范（IGCC）。这些冷却塔水效率要求的目标是在保持系统传热效率和寿命的同时，节约蒸发冷却过程中使用的饮用补给水。引文:ASHRAE论文CD:2014 ASHRAE年会，华盛顿州西雅图

"Water Efficiency" is a code section found in many green, high performance building standards like ASHRAE 189.1, the International Green Construction Code (IGCC), LEED(R) Green Building Rating System, California Title 24-2013, and is the sole focus of the proposed ASHRAE 191 Standard for the Efficient Use of Water.The Water Efficiency sections in the above codes and standards address the areas of irrigation of the landscape, the use of efficient plumbing fixtures, and water metering. The effects of these fixtures and devices are well understood and have quantifiable impacts on water usage. This conference paper examines the "Water Efficiency" requirements for evaporative heat rejection equipment used in HVAC systems according to ANSI/ASHRAE/USGBC/IES Standard 189.1-2011Standard for the Design of High-Performance Green Buildings and the International Green Construction Code(IGCC). The goals of these cooling tower water efficiency requirements are to conserve the potable make-up water used in the evaporative cooling process while maintaining system heat transfer efficiency and longevity.