案例研究

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公寓 & 公寓

雪松公园公寓

  • 75个单位(97个厕所)
  • 用水减少34%
  • 北岸公用事业区
  • 替换混合物3.5 & 1.6gpf toilets with Premium WaterSense 1.0防毒气的厕所

“Not only are we getting a lot of good positive feedback from our tenants, 我们也需要做更少的维护, 相对于厕所堵塞, 等. The water savings are very substantial and any multifamily property would benefit from it and would help keep our environment healthier”.

- - - - - -默罕默德 & 乔一个. ——房地产经理

校园景观公寓II

  • 27个单位
  • 用水减少38%
  • 西雅图公共事业
  • 取代了34个1.6 gpf厕所,优质0.8防毒气的模型

“这些新 .GPF厕所令人难以置信. Not only do we save 30 to 40% on our water bills, but maintenance from inoperable toilets and clogs was almost eliminated. 任何

property owner with inefficient toilets who doesn’t jump on this program while it lasts will definitely be sorry.”

- Nate A -物业经理

冷却

体验音乐项目

体验音乐项目 (EMP) has installed an innovative water treatment system for its cooling tower. This system utilizes a water softener regularly recharged with table salt (NaCl), rather than chemical scale and corrosion inhibitors and biocides. 这段视频的主角是李·理查森, EMP设施经理, talking about his experience with the new water treatment system over the past year. This footage was taken as part of a panel discussion at the 网赌平台 Cool Tunes Seminar on water efficient cooling towers hosted at the EMP on December 8, 2010.

看视频: 有EMP冷却塔工作经验

Seattle Municipal Tower Hybrid 冷却 Tower

In 2008, the Seattle Municipal Tower installed one of the first new generation hybrid wet/dry cooling towers in the country. These innovative cooling towers can operate with or without water (or half-dry and half-wet), depending on load and temperature conditions, with the potential for significant water savings. In this video, Mark Nieman of McKinstry Co., explains why this type of cooling tower was chosen, 这是什么好处和坏处啊, and how this new technology has continued to evolve over time. This footage was taken as part of a panel discussion at the 网赌平台 Cool Tunes Seminar on water efficient cooling towers hosted at the EMP on December 8, 2010.

看视频: Hybrid 冷却 Towers – Seattle Municipal Tower (12分钟)

More information on cooling tower efficiency

很酷的音乐手册 (pdf) is a tool developed by 西雅图公共事业 to assist engineers and building management staff in increasing their cooling tower efficiency – including reducing water and energy use and the amount of treatment chemicals needed.

厕所冲洗阀

标志性建筑

High-efficiency fixtures are the new water conserving standard for restroom fixtures, and include high efficiency toilets (HETs) with 1.每次冲洗不超过28加仑(gpf), and high-efficiency urinals (HEUs) which use one-half gallon or less. This video highlights the substantial savings a number of landmark Seattle buildings have achieved through installation of these fixtures.

看视频: 高效的卫生间装置 (1分34秒)

美国银行第五大道广场

The Bank of America 5th Avenue Plaza building retrofitted all of their bathrooms over a two year period . This has resulted in a high performance bathroom for all building occupants and visitors. These actions have contributed to the building achieving LEED- Existing Buildings Gold certification.

  • High-efficiency toilets installed – 236
  • 安装水感小便池- 74
  • 安装了新的曝气器.0加仑- 250加仑

公用事业节省:每年114,424美元

Fred Hutchinson Cancer Research Center

背景: Many large medical or highly-specialized facilities have a need for purified water, which can produced by a variety of methods such as deionization, 蒸馏, 或反渗透(RO), which uses membrane filtration technology to produce water of a selected pureness.

挑战: Increase water efficiency of RO production.

系统参数: 6,000 gallons per day RO system consumption, 3,000 of which was production water and 3,000万被拒绝的水被浪费了.

结果: For every gallon of produced RO deionized water, reject water was reduced from 1 gallon to 0.5加仑. 这节省了1英镑,每天500加仑, the equivalent of 2 CCF on a water utility billing basis.

成本 & 节省: Current water and sewer cost is a combined annual average of $15.09年/ CCF. Savings from the efficiency improvement is $30 per day. Carried out over a 260 day/year time frame, total annual savings to Fred Hutchinson CRC is $7,847. The cost to implement this efficiency improvement was $300. This represents the cost of a system adjustment and testing administered by the maintenance contract technician. The simple payback was less than two weeks.

额外的亮点: Besides the RO operational improvements, the FHCRC has reduced total water use by one-third since the year 2000 while more than doubling the total building square footage over the same period.

This impressive conservation success story has been achieved through reduction of trap cooling water for sterilizers, installation of efficient restroom fixtures, installation of water softening water treatment for cooling towers, and innovative water reuse systems for water captured from a variety of sources.

Jim Walker, Chief Facility Engineer for the FHCRC takes us on a 视频之旅 (9 min) to see firsthand how the different parts of their water reuse systems work.

粉红色的门

粉红色的门 is a restaurant icon located in the Pike Place Market vicinity. 像托斯卡尼Pizzaria, 粉红色的门 had a water-cooled refrigeration condenser unit that served a walk-in cooler, and also had a water-cooled ice machine. Because 粉红色的门 is a full service restaurant, determining water use specifically for the refrigeration unit required metering prior to replacement.

  • Details: One water-cooled walk-in cooler and one water-cooled ice machine replaced with air-cooled units
  • 项目成本:10000美元
  • 公用事业节省:每年7,804美元

西雅图的学校

The Seattle School District has been using the available kitchen equipment rebates for a number of years to replace food steamers, 洗碗机, 冰机, and a host of other types of kitchen equipment that doesn’t consume water, but qualifies for energy utility rebates. When combined the result of using high efficiency Energy Star rated equipment is significant.

托斯卡尼披萨店

项目

New air-cooled refrigeration system replacing a single-pass water-cooled system.

现有的条件

项目 site is a small Capitol Hill restaurant specializing in pizza. Existing refrigeration system provides refrigeration for a small walk-in cooler.

  • Pre-project daily average water consumption was 1,698 gallons per day on an annual basis for the business.
  • It was estimated that 36% (615加仑s) of the total water consumption by the business was from the water-cooled refrigeration system, with a much higher use in the summer season.
  • The utility cost savings estimate was $3,900 per year.

安装

  • A new remote condenser was located on a patio in the back of the restaurant.
  • Labor and materials for the project was just under $8,000.
  • 项目于2010年5月完成.

结果

  • Water consumption for three years post project completion averaged 1,每天223加仑, 减少29%.
  • If one two-month billing period in the summer of 2011 was not considered (the consumption was abnormally high) the resulting savings would have been much closer to the original estimate.
  • Approximately 30% water consumption reduction.
  • Estimated water and sewer utility cost savings is $3,500/year.
  • This project achieved a simple payback of one year when the 50% of project cost SPU utility rebate is considered.

华盛顿大学

The 华盛顿大学 (UW) has managed to reduce its water consumption by almost 40% over the last 10 years. This equates to a savings of around 800,000 gallons per day. This remarkable savings achievement has been the result of many water conservation projects, including equipment and leak repairs, installation of water conserving trap cooling kits on steam sterilizers, 更换旧厕所, urinals and showers with new efficient models, and upgrades or replacement of water cooled equipment, including refrigeration equipment and vacuum producers.

戴夫字段, chair of the UW Conservation 项目 Development Team, 和约翰沉闷的, 特殊项目协调员, take us on a tour to see firsthand some examples of the water conservation projects they have undertaken.

看视频: Water Conservation at the 华盛顿大学  (8分钟)

W酒店

W酒店 in downtown Seattle made the decision to install a laundry reclaim system from AquaRecycle. 是什么让这个系统如此独特, 这对顾客来说是很有吸引力的, was the inclusion of steam condensate reclaim in addition to the regular laundry water reclaim. W酒店, 有426间客房, had an abundance of steam condensate from domestic hot water production, 蒸汽干燥器, 以及其他洗衣用途. Collecting this pure hot water and eliminating the use of fresh potable water for condensate tempering gave this project added benefits over a straight reclaim system. The net water savings actually exceeded the pre-project use of water.

  • Details: Laundry water reclaim system included one 2,000加仑集水箱, three levels of filtration and treatment, and control system monitoring temperature and storage level control.
  • 项目成本:153800美元
  • 实用程序节省:70443美元

关于洗衣水回收系统

大型商业洗衣店, whether contained within a single hotel or a stand-alone facility serving multiple clients, can nearly all benefit from the use of a water reclaim system. Reclaiming up to 80% of the water used in washing clothes save the laundry operator significant cost by reducing both water and sewer utility bills, and energy bills from the heating of that water. The unfortunate aspects of laundry reclaim systems are that they require extra maintenance of laundry equipment, add a level of complexity in terms of the chemical formulas, and often times are not well understood by day to day operators of laundry equipment. If these modest complications can be addressed initially and built into the normal expectations of operation, the benefits will more than compensate for the additional steps needed for long term performance.