Solving Pumping and Coil Capacity Problems
Edward Dusch, PE
Problems in existing and new buildings often involve pumping, coils and controls. Estimating the flow resistance in the hydronic system is tricky and may result in a bad pump selection and inadequate flow. Even more common is to select pumps that are oversized for the system and waste energy over their entire life. Bad coil selection and/or improper installation can reduce capacity to remove sensible and latent loads which is crucial for temperature and humidity control. Misapplication of control valves often occurs due to the lack of attention in choosing a valve to match the equipment characteristics. In existing facilities with effects of aging equipment-- compounded by years of inadequate maintenance—and the problems increase dramatically.
This training will provide the student with key fundamentals regarding pumps, coils, control valves and distribution piping. It will include a discussion of dozens of design, installation, maintenance, and operating problems observed over the instructor’s long career. Numerous graphs and charts are provided and discussed to illustrate major points in the subject matter. The session is appropriate for design engineers, facility managers, and experienced service technicians.
BME, MME and MBA-University of Louisville. Taught HVAC design course at UofL (Speed School) 1995 to 2000. Has presented numerous engineering and facilities topics locally and nationally. Twenty years at a large university, the last 10 years with responsibility for facilities operations and new construction. Following that, 20 years managing a central plant with multiple coal and gas fired boilers, 31,000 tons of cooling and a large and complex underground steam and chilled water distribution system connected to 35 separate facilities.
Education Credit Hours
Three credit hours will be awarded to Professional Engineers in attendance.
Likewise, three credit hours will be awarded to Kentucky State HVAC license holders. HVAC license holders should register on the State HVAC Division website before attending the session.
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