CLIN
Cleanroom energy efficiency strategies

Cleanroom energy efficiency strategies

Technology makes a big difference in cleanroom energy efficiency, but companies can also act to maximize the performance of existing setups. Here are five tips to ensure your cleanroom is operating optimally.

1. Air Change Rates
Cleanroom airflow rates must maintain cleanliness, usually at specific particle counts. Airflow is measured by air change rates per hour, which determines building configuration, fan sizing and total energy costs. Where possible, rate reductions that still meet the standards required by the facility lower energy costs while meeting cleanliness parameters. For example, a 20 percent reduction of air changes yields a 50 percent reduction in fan size, reducing energy consumption.

Optimal air change rates vary by industry, but typical recommendations range from 250 to 700 for ISO Class 5 cleanrooms. Cleanliness is the priority of any cleanroom operation, but safe ACR reductions can yield significant energy efficiency improvements.

2. Motor Efficiency
Motors account for most of a cleanroom’s electricity consumption. Retrofits are expensive, but achieving even modest efficiency or sizing gains makes it worthwhile, since even a few percentage points of efficiency can be profitable.

Using premium motors, such as VSDs, doesn’t necessarily cost more. Companies should minimize the load before determining the size of a more efficient motor to optimize gains.

3. Dual Temperature Cooling Loops
Cooling system designs accommodate peak loads, regardless of how often that maximum is actually reached. The chilled water setting for the cooling loop is usually defined by the most extreme temperature requirements. This is often inefficient, because the excess cooling capacity adds no benefit but adds energy requirements to operation. On average, reducing the chilled water supply by one-degree Fahrenheit improves chiller efficiency by one percent.

4. Heat Recovery
Many facilities use energy to produce heat, and then use even more energy to dispose of waste heat. Recovering heat to preheat outside air and supply reheated air saves energy.

Reheat coils use waste heat from your facility’s air compressors or from chiller condenser used water. This saves chiller energy as well as boiler fuel. Heat exchangers accommodate energy transfer between media that can’t make direct contact.

5. Free Cooling
Economizer cooling, or “free cooling,” uses outside air or makes chilled water from the cooling towers during low temperature or low humidity. This reduces the load on the chillers. This is climate-dependent, but free cooling systems can improve energy efficiency by a factor of 10.

Keeping it touch with new technology and looking at the ROI helps you get past the sticker shock of retrofits, redesigns or initial construction costs. The only way to evaluate whether certain innovations are right for your facility’s cleanroom is to look at the total cost and savings over time. Typically, taking the long view shows that increasing efficiency now only improves your bottom line without compromising performance.

 Resources & Articles

CLIN ® "Resources" page is for individuals/companies seeking information on cleanrooms and controlled environments. Find Cleanroom News, Discussion Forums, Cleanroom Cleaning Recommendations, Cleanroom Terminology, Cleanroom Directory, and more.

 Content Disclaimer

Information are contributed by/from different websites and all credit goes to its respective owners/writers/websites/companies and etc, and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website.

Through this website you are able to link to other websites which are not under the control of respective owners/writers/websites/companies and etc. We have no control over the nature, content and availability of those sites. The inclusion of any links does not necessarily imply a recommendation or endorse the views expressed within them.

Every effort is made to keep the website up and running smoothly. However, CLIN ® takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues beyond our control.

We are experienced in Cleanroom Solutions

Call Us for Consultation +6(04) 398 1778

About CLIN

Cleanroom Industries Sdn. Bhd. was founded in 1999 as a pioneer manufacturer in Malaysia specializing in design and manufacture of a full range of cleanroom-related architectural products for cleanroom applications up to Class 1 cleanliness.

Awards & Recognitions

ISO 9001 Malaysia Power Brand Super Excellent Brand Sirim QAS Made in Malaysia Asia Pacific International Honesty Enterprise Keris Award