Laboratory Exhaust Equipment—Optimizing Design for Operational Flexibility and Energy Efficiency
Paul Lemestre, P.E., LEED AP®, MBA, Research Facilities Design
Detailed analysis of laboratory HVAC exhaust system operations and improved modular equipment design for partial load performance can result in significant savings in initial capital costs and operational energy costs while providing greater system flexibility for the owner. Laboratory HVAC energy consumption often accounts for more than 60 percent of the energy use of a laboratory building, with the ventilation systems accounting for the largest percentage of energy use. The development of custom profiles for the laboratory exhaust ventilation requirements can assist in the planning and design of the laboratory exhaust system equipment. Key design strategies will be discussed, including optimal fan efficiency operating points, partial system load performance, modular exhaust fan systems, operational flexibility, future system capacities, and maintenance considerations. This discussion will utilize examples of laboratory exhaust system profiles and design strategies to help achieve energy savings for laboratory exhaust ventilation systems, while providing the owner with operational flexibility and system capacities.
Paul Lemestre is the director of engineering and a mechanical engineer for Research Facilities Design, a more than 25 person laboratory consulting firm specializing exclusively in the programming and design of science facilities. Mr. Lemestre has more than 20 years of experience as a mechanical engineer in design, construction, and operation. His experience with laboratory design includes design of cleanrooms, process piping systems, process exhaust systems, laboratory piping systems, and HVAC design for laboratory ventilation systems. Mr. Lemestre holds a Bachelor of Science in aeronautical science and engineering from the University of California at Davis and a Master of Business Administration from San Diego State University. He is a licensed Professional Mechanical Engineer in 28 states and is a certified LEED AP. Mr. Lemestre is a former United States Naval Nuclear Submarine Officer.