Engineered Systems - April 2008 - (Page 54)

Cleanroom Design STEP TEN: FIGHT FOR MECHANICAL ROOM SPACE Cleanrooms are mechanically and electrically intensive. As the cleanroom’s cleanliness classification becomes cleaner, more mechanical infrastructure space is needed to provide adequate support to the cleanroom. Using a 1,000-sq-ft cleanroom as an example, a Class 100,000 (ISO 8) cleanroom will need 250 to 400 sq ft of support space, a Class 10,000 (ISO 7) cleanroom will need 250 to 750 sq ft of support space, a Class 1,000 (ISO 6) cleanroom will need 500 to 1,000 sq ft of support space, and a Class 100 (ISO 5) cleanroom will need 750 to 1,500 sq ft of support space. The actual support square footage will vary depending upon AHU airflow and complexity (simple: filter, heating coil, cooling coil, and fan; complex: sound attenuator, return fan, relief air section, outside air intake, filter section, heating section, cooling section, humidifier, supply fan, sound attenuator, and discharge plenum) and number of dedicated cleanroom support systems (exhaust, recirculation air units, chilled water, hot water, steam, and DI/RO water). It is important to communicate the required mechanical equipment space square footage to the project architect early in the design process. FINAL THOUGHTS Cleanrooms are like race cars. When properly designed and built, they are highly efficient performance machines. When poorly designed and built, they operate poorly and are unreliable. Cleanrooms have many potential pitfalls, and supervision by an engineer with extensive cleanroom experience is recommended for your first couple of cleanroom projects. ES Sakraida is a senior mechanical engineer with Merrick & Company in their Aurora, CO office. He is a graduate of Georgia Institute of Technology with a BME and has 25 years of experience designing mechanical systems for laboratories, pharmaceutical production, industrial, and other high technology facilities. He has extensive experience designing central plant systems (steam, chilled water, hot water), lab utilities (RO, DI, compressed air, N2), and HVAC systems. He is an expert in cleanroom design and has presented on the topic at LABS21 and Cleanroom East conferences. Reach him at Vincent.Sakraida@merrick.com. Merrick & Company is an employee-owned, national consulting firm, with more than 350 employees and offices in Colorado, Georgia, New Mexico and Canada. Founded in 1955, Merrick provides multidisciplinary architect-engineering services to public and private clients. Public clients include federal agencies (USDA, DOE, DOD), public universities, and national laboratories. Merrick’s diverse practice includes laboratories, mission critical facilities, nuclear facilities, hot cells/glove boxes, roads/streets, land development, and geospatial solutions. For more information, visit www.merrick.com. Quality you can be proud of. 7 World Trade Center stands tall with the help of quality components provided by Belimo. > BELIMO Get the details: www.belimo.com 7 World Trade Center, New York, NY FREE INFO: 151 54 En gi neer ed S y stem s April 2008 http://www.merrick.com http://www.belimo.com http://www.belimo.com http://www.belimo.com

Table of Contents Feed for the Digital Edition of Engineered Systems - April 2008

Engineered Systems - April 2008 Contents Editor’s Note Back2Basics HVAC Challenge Case In Point Commissioning Building Automation Energy Wiz HVACR Designer Tips This Time, Water Cooled Was All Wet Cleanroom Design In 10 Easy Steps It's Not The Heat, It's The Humidity Issues & Events Computers and Software Products Glossary Classifieds Advertiser Index Tomorrow’s Engineer

Engineered Systems - April 2008

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.