Retrofitting for Energy Management: A Continuing Case Study of Manifolding Laboratory Exhaust Systems
Stan Lengerich, Eli Lilly and Company
Ken Grubbs, Mussett, Nicholas & Associates, Inc.
The challenge for professionals everywhere is to design and build the next generation of laboratory buildings with sustainable practices in mind. This quest for energy savings and related sustainability efforts becomes even more challenging when the building in question is an existing facility. Eli Lilly and Company has undertaken this significant challenge in the case of Buildings 48 and 98, in line with the company’s commitment to safety and sustainability. At last year's Labs21 conference we discussed wind tunnel analysis, design scope, and anticipated savings. Join us this year for an in-depth view of the implementation of this multi-phase project.
Manifolded exhausts present several benefits including reduced energy costs, increased dilution, reduced stack height, enhanced personnel safety, improved design flexibility, and reduced maintenance. In order to realize these benefits in a complex, operating research facility, detailed engineering analysis along with intricate logistics management is imperative. The phase I installation has been completed on A-wing of building 98. A total of 101 individual exhaust fans were removed and replaced by a manifold of six mixed-flow impeller, induced-dilution fans capable of moving 246,000 cupic feet per minute.
What were the engineering decisions that determined the course of the project? How were functioning laboratories phased in and kept operational during the switchover? What unique approaches were used to facilitate installation? How will the learning from phase I shape the approach to phase II—now under design and presenting its own set of dilemmas? All these facets, and more, will be discussed and photos will be shared by the presenters to provide an inside look at this logistically challenging, yet rewarding effort to achieve long-term sustainability.
Biography:
Stan Lengerich is a certified industrial hygienist and an engineering consultant with the Eli Lilly and Company Engineering Technology Center. He brings more than 20 years of experience to his role of providing engineering consulting to research, development, and manufacturing laboratories. Mr. Lengerich's primary focus at Lilly is the design, delivery, and operation of laboratory containment and ventilation systems. Mr. Lengerich is a voting member of the ASHRAE 110 and ANSI Z9.5 laboratory standards committees, and was recently the lead author for the Labs21 Best Practice Guide for "Commissioning Ventilated Containment Systems in the Laboratory."
Ken Grubbs is a mechanical engineer with Mussett, Nicholas & Associates. Mr. Grubbs is a graduate of Rose-Hulman Institute of Technology and has been working in the engineering consulting industry since 2007. His experience includes both remodel and new construction projects for pharmaceutical, industrial, healthcare, and commercial spaces. Mr. Grubbs' primary focus at Mussett, Nicholas & Associates is the design and delivery of sustainable mechanical and heating, ventilating, and air conditioning systems.