Air-Handling Systems for Hospitals

Air-handling units (AHU’s) in hospitals provide a variety of functions that may include comfort conditioning, maintaining air quality, reducing airborne infections, odor control, and smoke ventilation, while directly contributing to the temperature, humidity, air movement, ventilation and filtration within these facilities. Additionally, they must operate as efficiently as possible in order to eliminate the burden of excessive energy costs which diminish a hospitals financial bottom line. The proper design, selection, installation and operation of these significant system components is key to a HVAC system that contributes positively to the complex dynamics of patient wellbeing and outcome. Much of the information in this presentation comes from various ASHRAE and ASHE publications, including the ASHRAE HVAC Design Manual for Hospitals and Clinics and the ASHE Mechanical Systems Handbook for Health Care Facilities.

Learning Objective:

• Discuss design, configuration and componentry unique to AHU’s serving the healthcare environment.
• Discuss reliability and redundancy in hospital AHU’s, as well as how to incorporate this cost effectively into the system design.
• Demonstrate how the criticality of space environmental requirements can impact the cooling, dehumidification and humidification strategies employed in a hospital air-handling system, and how to         properly select units that will perform accordingly.
• Present various hospital filtration requirements, types and efficiencies, along with design strategies that help ensure AHU components, ductwork and final filters remain dry, and effective.
• Show the associated energy use contributed by air-handlers (including reheat and fan energy) along with design strategies that help curb hospital energy costs.

Presented By: 

David N. Schurk, P.E.

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David serves as Director of Business Development for Global Plasma Solutions, headquartered in Charlotte NC (USA). In previous positions he worked for three of the world’s largest HVAC manufacturers, including Carrier, Daikin, and Trane.

David is a Licensed Designer of Engineering Systems with over 38-years of experience in the design and analysis of heating, ventilating, and air-conditioning systems for a variety of market sectors, with a special focus on hospital/healthcare environmental control and indoor air quality.

David attended the Milwaukee School of Engineering and is a LEED-AP who has been involved in the conception, design, and selection of HVAC systems for a number of projects achieving LEED certified status. He is also an ASHRAE Distinguished Lecturer, a Certified Energy Manager (CEM), a Certified Demand Side Manager CDSM), a Certified Water Efficiency Professional (CWEP), a Certified Sustainable Facilities Professional (SFP), a Certified Indoor Air Quality Manager (CIAQM), and is Health Care Constructor Certified (HCCC). He is active in the American Society for Health Care Engineering (ASHE) as Member and serving on the ASHE Editorial Advisory Board, the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) as Member and past Chapter President, the American College of Healthcare Executives (ACHE), the Association of Energy Engineers (AEE), and many other national and regional industry associations.

David has authored numerous technical articles for industry magazines and journals including ASHRAE, Medical Construction & Design, Healthcare Design, Engineered Systems, Heating-Piping & Air-Conditioning, and others. He is a featured presenter at national, international, and regional industry associations and events.

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