Case Studies

About Rand Simulation Rand Simulation is focused on helping organizations bring their product vision to reality through incorporating engineering simulation technology into the product development process. Rand Simulation caters to product development organizations looking to compress the design process, maximize innovation, strengthen competitive differentiation and grow bottom-line profitability. Rand Simulation serves as both a North American reseller of Ansys engineering simulation software and as a trusted design consultant offering insights gained on over 3,000 design projects using engineering analysis software to balance design performance with size, cost, DFM and aesthetics. E L I T E C H A N N E L PA R T N E R simulation@rand.com | RandSIM.com | 888.483.0674 The Solution Rand Simulation ran the CFD analysis under different scenarios. The team found that the base bid ventilation concept, which was determined from general conditioning guidelines for a facility of this size, would be insufficient during mid-winter conditions. The assembly areas would be around 50 degrees Fahrenheit, which was unacceptable for occupant comfort and safety. The primary factor driving the internal temperatures was the roll- up overhead doors. KJWW considered different solutions to this issue, ranging from building large vestibules around the doors to adding heating capacity to the ventilation system. However, based on the results of the CFD analyses and very close collaboration with the Rand Simulation CFD team throughout the project, another option was suggested: installing air curtains over the roll-up doors. The models suggested that the curtains would increase the temperature in the facility by 20 degrees Fahrenheit. "The air curtains were considerably less expensive than the other options that had been considered," said Mumm. "In addition, the CFD analysis gave us confidence that this solution would work before we moved forward with procurement of the air curtains, and that it would mitigate the production downtime of any post- installation retrofits." The manufacturing facility is now under construction and the air curtains are part of the building plan. KJWW was pleased with Rand Simulation's innovative solution to the heating challenge as well as the experience of working with their CFD Analysis experts. "The Rand Simulation team was flexible in the face of aggressive schedule expectations and easy to work with," said Mumm. "The impact of this collaboration has not only red uced upfront capital costs but will also improve ongoing utility costs by eliminating the need for larger-capacity systems." KJWW Uses CFD Analysis to Improve Working Conditions "The CFD analysis gave us confidence that this solution would work and that it would mitigate the production downtime of any post-installation retrofits before we moved forward with procurement of the air curtains." —Steve Mumm Senior Engineer KJWW Plant level thermal profiles

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