Chicago Meeting, January 2018
TC 9.6 is sponsoring/co-sponsoring the following technical sessions in Chicago:
Monday, January 21, 8:00 AM - 9:00 AM
Forum 1 - Ventilation Effectiveness: What Is It?
Track: Fundamentals and Applications
Sponsor: MTG.ACR, 9.10 Laboratory Systems, 9.11 Clean Spaces, 9.6 Healthcare Facilities
Chair: Kishor Khankari, Ph.D., Fellow ASHRAE, AnSight LLC, Ann Arbor, MI
Ventilation effectiveness is often perceived as an efficiency measure of air distribution. However, the definition and application of ventilation effectiveness can vary from application to application. Is there a universal definition of ventilation effectiveness? Can it be measured? Can it be monitored? Can air change rate alone affect the ventilation effectiveness? What other parameters affect the ventilation effectiveness? How can it be implemented as a design parameter? This session brainstorms these questions and will attempt to identify current state of the art of ventilation effectiveness and future needs in HVAC industry.
Monday, January 22, 9:45 AM - 10:45 AM
Seminar 24 (Intermediate) - Building Automation Solutions to Code Compliance Challenges in Hospitals
Track: Standards, Guidelines and Codes
Room: Red Lacquer (4th Floor)
Sponsor: 1.4 Control Theory and Application, 9.6 Healthcare Facilities, 7.5 Smart Building Systems
Chair: Frank Shadpour, P.E., Fellow ASHRAE, SC Engineers, Inc., San Diego, CA
Progressive hospitals are leveraging their building automation systems to document compliance with the codes and standards required by various regulatory agencies for medical service accreditation. The quantity and penetration of smart devices used in every facet of health care spaces is increasing at remarkable rates. The first speaker describes the recent advances in available tools and methods used to automate the collection and presentation of smart device data for compliance reporting. The second speaker presents strategies for retrocommissioning building automation systems in hospitals while meeting their enhanced code requirements.
Daniel Farrow, Palomar Health, San Diego, CA
The quantity and penetration of smart devices used in every facet of health care spaces is increasing at remarkable rates. Applied to healthcare, IoT includes intelligent convergence and integration of sensor data collected via medical devices and mobile technologies. With the ultimate goal of a single user interface to control and monitor all hospital smart systems, this seminar introduces the concept of a “building automation dashboard.” The presentation describes how building automation dashboards are revolutionizing the healthcare industry by assisting in compliance reporting.
Joseph Kilcoyne, P.E., Member, SC Engineers, Inc., San Diego, CA
California’s code requirements for hospital facilities are among the most restrictive in the nation. Requirements for pressurization, temperature and humidity control, air change rates and filtration prevent most designers from attempting to implement energy saving control strategies common to commercial spaces. This seminar presents proven strategies to implement RCx measures while meeting and exceeding the requirements of the California Mechanical Code. Typical savings and payback periods, case studies and lessons learned will be presented.
Monday, January 22, 11:00 AM - 12:00 PM
Workshop 4 (Intermediate) - Code Red: Is your Facility Prepared?
Track: Earth, Wind & Fire
Sponsor: 9.6 Healthcare Facilities
Chair: Robert Cox, P.E., Member, Jacobs Carter Burgess, Cary, NC and Mark Tome, Member, CESI
Defend in place is a key element of disaster planning for hospitals and nursing homes. Inpatient and residential health facilities rely on carefully developed plans for isolating fire and smoke and limiting its spread to maintain the delivery of patient care and keep patients and staff safe so that evacuation of patients and cessation of operations is avoided to the fullest extent possible. This workshop discusses fundamentals of defend in place strategy and typical field observations for open discussion.
Michael Meteyer, P.E., Member, Erdman Companies, Madison, WI
A fire in a hospital is a horrifying situation to imagine. Having a well-planned defend-in-place firefighting strategy is critical to minimize its impact. This presentation provides a review of the code requirements and discusses the various elements related to HVAC systems such as fire/smoke damper operation and control, smoke isolation zones, air-handler sequences and functional testing requirements and best practices.
Ronald Westbrook, P.E., Member, State University of New York Upstate Medical University, Syracuse, NY
Large hospitals with continually changing service lines can create havoc with the maintenance of fire and smoke detection and protection systems. Even small changes can have large impacts when departmental boundaries change without consideration of how those changes can affect disaster planning. Incorrect air balancing can cause fire doors to not secure properly. Fans needed for delivery of patient care service may shutdown inadvertently by fire command or not at all. Care must be taken during planning and design to ensure coordination between equipment operation, fire and life safety systems, and departmental disaster plans to ensure continuation of operations and prevent having to evacuate patients.
Other programs in Chicago that may be of interest:
Sunday, January 21, 1:30 PM - 3:00 PM
Seminar 13 (Intermediate)
Sound Humidification Supports Health and Comfort
Track: Fundamentals and Applications
Sponsor: 5.11 Humidifying Equipment, 5.7 Evaporative Cooling
Chair: Raul Simonetti, Member, Carel Industries SpA, Brugine, Italy
Recent research shows that a proper level of humidity significantly reduces the risk of airborne infections. Humidity control solutions offer significant health benefits for occupants, especially when it is designed, installed and commissioned correctly. This seminar, after recalling the results of the research, presents some of the currently available humidification solutions along with their main characteristics and best practices.
Stephanie Taylor, M.D., Member, Healthcare Acquired Infections Organization, Boston, MA
Today, indoor humidification is used in commercial buildings to protect materials and aid in manufacturing processes, however,data tells us that proper air-hydration is also essential for the health of people. Short term dehydration symptoms such as a dry mouth prompt us to drink fluids when we feel thirsty. Conversely, chronic dehydration resulting from water evaporation through our skin and respiratory tissues in dry air is unperceivable, yet causes serious problems for our blood circulation, thinking ability and resistance to infections and allergies. This presentation discusses exciting new and existing data to show the health benefits of proper indoor-air humidification.
Nicholas Lea, P.Eng., Associate Member, Nortec Humidity Ltd., A Member of the Condair Group, Ottawa, ON, Canada
With the vast quantity of research demonstrating how to keep buildings and materials dry it may seem counter intuitive to add water to the indoor environment. However recent research has shown clear health benefits from maintaining mid-range humidity levels. This presentation dispels the myths associated with humidification and discusses crucial elements for a safe and successful design. Learn about where humidity is needed, controlling risks of condensation and avoiding bacterial contamination. The seminar concludes with practical design tips.
Thomas Weaver, P.E., Member, CMSI Headquarters, Hercules, CA
Supplying dry winter outdoor air to a room decreases its relative humidity (RH). Recent research shows that when room RH drops below 40 %, the droplet nuclei containing the pathogens stay buoyant in the human breathing zone longer, with increased risk for susceptible humans. Overhead VAV air systems remain the most popular HVAC cooling design for schools and office buildings in California. The use of a Heat-Recovery Economizer and an adiabatic Direct Evaporative Cooler/Humidifier offers a remedy. This all-outdoor-air design offers the building owner significant cooling and heating energy savings while furnishing all outdoor air for better Indoor Air Quality.
Raul Simonetti, Member, Carel Industries SpA, Brugine, Italy
Steam humidifiers can be used as alternative to evaporative-cooling equipment in many applications, or must be used instead of evaporative-cooling systems for dedicated purposes (e.g., surgery theatres, cheese maturing). This seminar presents the most common steam humidifiers describing their performances, supply-water constraints, as well as hygiene and maintenance requirements.
Monday, January 22, 8:00 AM - 9:30 AM
Seminar 19 (Intermediate)
Navigating the Changing Landscape of Regulations, Codes and "Best Practices" Around Legionella and Building Water Safety
Track: Standards, Guidelines and Codes
Sponsor: 3.6 Water Treatment, Environmental Health Committee, SSPC188
Chair: Joshua Ince, P.Eng.,Member, Eldon Water Inc, West Chester, OH
This session reviews the most current and recent codes and regulations pertaining to Legionella and building water safety, how to follow and adhere to these regulations and discuss how effective they are. The expert panel answers questions pertaining to why these regulations are required to control Legionella, strategies for executing management plans to comply with codes and regulations and discusses which codes and regulations have had the greatest impact for the management team and improving water safety.
Janet Stout, Ph.D., Associate Member, Special Pathogens Laboratory, Pittsburgh, PA
The aim of regulatory documents is to manage the conditions within potable and utility water systems that allow uncontrolled growth of this bacteria. This session provides you with a unique perspective – Legionella’s perspective. Understanding the water systems from this vantage point will enable owners and managers to effectively manage these systems, understand previous failures, set achievable goals and to have greater success in controlling the growth of this waterborne pathogen.
William Pearson, Member, Special Pathogens Laboratory, Pittsburgh, PA
For almost four decades, the facility manager, the engineer and the water treater were essentially without any specific or enforceable Legionella-related building water safety codes, regulations or published Standard (of care). The past two years have seen significant change, starting with the June 2015 publishing of the first US (Legionella) Standard, ANSI/ASHRAE 188, quickly followed by regulations enacted in NYC and NYS following an outbreak of Legionnaires’ disease in the South Bronx and with a June 2017 directive from CMS (Centers for Medicare and Medicaid Services) that spells out very specific Legionella-related building water safety policies and procedures requirements.
Tim Keane, Member, Legionella Risk Management Inc., Chalfont, PA
With ASHRAE Standard 188 published and supported by CDC as well as others, CMS finally weighed in and immediately required all healthcare facilities including all hospitals and nursing homes in the US to have a Legionella risk management plan. This is a huge change from where we were just three years ago. So what's next? What other codes will this replace, what other codes will need to change and what will be the effect on design engineers.
Wednesday, January 24, 8:00 AM - 9:30 AM
Seminar 56 (Intermediate)
Using Optimization for Airflow Management in Data Centers and Operating Rooms
Track: Modeling Throughout the Building Life Cycle
Sponsor: 4.10 Indoor Environmental Modeling, 9.9 Mission Critical Facilities, Data Centers, Technology Spaces and Electronic Equipment
Chair: James W. VanGilder, P.E., Member, Schneider Electric, Andover, MA
The value of CFD modeling for indoor environment applications is well established. This seminar uniquely focuses on minimizing energy while ensuring the health of electronic and human occupants – in data center and operating-room applications. “Optimization” is the primary unifying theme with two presentations focusing on the familiar manual “design-stage” optimization carried out by the CFD modeler, one including a formal optimization study, and another proposing a formal optimization engine for ongoing operational control and energy savings in data centers.
Cheng-Xian (Charlie) Lin, Ph.D., Member, Florida International University, Miami, FL
Airflow non-uniformity normally causes uneven cooling for computing servers in data centers. To tackle the airflow variation from perforated tiles, we perform an optimization study, which considers these two most important parameters, i.e., stanchion layout and flow partitioning (flow resistance). The response surface methodology based on a radial basis function is used to reduce the run time for producing a large set of genetic generations during an optimization process in which the tile airflow variation is minimized. As a result, guidance on the design of stanchions and perforated tile type selection is provided.
Ramin Rezaei, Associate Member, Southland Industries, Dulles, VA
Optimizing airflow management in data centers saves money by reducing the energy usage and avoiding hot spots. One of the main design criteria for data centers is the location of supply airflow. The three widely used data center cooling architectures are “underfloor”, “overhead” and “sidewall” supply. In this presentation, the difference between the flow and temperature distributions amongst these 3 scenarios is investigated using CFD. Detailed three-dimensional analysis helps find optimum airflow temperature and flowrate.
James W. VanGilder, P.E., Member1 and Christopher Healey, Ph.D.2, (1)Schneider Electric, Andover, MA, (2)Schneider-Electric, Andover, MA
The efficient control of cooling for data centers is an issue of broad economic importance due to the significant energy consumption of data centers. Many solutions attempt to optimize the control of the cooling equipment with temperature, pressure, or airflow sensors. This presentation shows how simulation-based approaches combined with power-consumption models can reduce cooling energy consumption in data centers. It also provides a real-life case study to demonstrate how energy-saving cooling set points can be found using calibrated simulations and smooth metamodels of the system.
Mehran Salehi, Ph.D., Associate Member, Southland Industries, Dulles, VA
Indoor air quality in hospital operating rooms is of a great concern for both patients and medical personnel, thus mandating the use of efficient HVAC systems and active gas scavenging systems. In this study, the velocity, temperature and particle distribution of an actual operating room is studied at different ACH values. Using CFD it is possible to determine the optimized ACH value and regions with high pollution concentration and ensure that the sterile zone is supplied with sufficient air to remove particle.
Wednesday, January 24, 9:45 AM - 10:45 AM
Seminar 59 (Intermediate)
Dehumidification Designs for Surgical Suites
Track: Fundamentals and Applications
Sponsor: 8.12 Desiccant Dehumidification Equipment and Components, 5.5 Air-to-Air Energy Recovery
Chair: Mark Piegay, Associate Member, Alfa Laval - Kathabar, Tonawanda, NY
Studies indicate that over 40% of energy consumption in a hospital is due to reheating of supply air that has been over cooled in order to satisfy prescribed humidity requirements and minimum air change rates. This session explains the basics of solid rotor desiccant systems and liquid desiccant systems and how they can be used to reduce the amount of cooling and subsequent reheating required to maintain environmental conditions in hospital operating rooms. Benefits to infrastructure required to support the operating room HVAC system are discussed.
James Piscopo, P.E., Member, Jacobs Engineering, Philadelphia, PA
Studies indicate that over 40% of energy consumption in a hospital is due to reheating of supply air that has been over cooled in order to satisfy prescribed humidity requirements and minimum air change rates. This session explains the basics of solid rotor desiccant systems and how they can be used to reduce the amount of cooling and subsequent reheating required to maintain environmental conditions in hospital operating rooms. Benefits to infrastructure required to support the operating room HVAC system are also discussed.
Mark Piegay, Associate Member, Alfa Laval - Kathabar, Tonawanda, NY
This session explains the basics of liquid desiccant systems and how they can be applied to surgical suites HVAC designs to save energy compared to conventional methods of over cooling and reheat. Benefits of the system include maintaining tight control of the required temperature and humidity specified by ASHRAE Standard 170 for surgical suite designs as well as cleaning the air of bacteria and viruses.
Attend a Committee Meeting
ALL ASHRAE committee meetings, including this TC’s meetings at the Winter and Annual Society conferences, are open to the public at no cost nor is conference registration required. Interested visitors, local chapter members, and potential new TC members are always welcome. However to attend technical program sessions sponsored by the TC will require registration and payment of any applicable fee.
Participation in an ASHRAE TC provides the opportunity to grow professionally and to contribute to the advancement of HVAC&R within an international organization recognized for shaping the future of the built environment through research, standards writing, publishing, and education.