CRC2018 Tech Sessions

Thursday – May 3, 2018

ASHRAE Learning Institute (ALI) Short Course – 1:30 PM to 5:00 PM
3rd Floor – Dubuque/Davenport Room
Humidity Control II: Real-World Problems & Solutions
Mark Nunnelly

For those who need to learn beyond the basics of humidity control, this course provides the next step. Based on ASHRAE’s best-selling Humidity Control Design Guide for Commercial and Institutional Buildings, the course includes an in-depth discussion of moisture load calculations and how humidity control can be added to HVAC designs for seven different types of commercial buildings. The course also covers the effects of different humidity levels on thermal comfort, corrosion, mold growth, and airborne microorganisms—information that helps the owner and designer define the optimal humidity control level for each application. This course puts the attendee on the fast track to understanding the effects of successful humidity control.


  1. Introduction
  2. Case histories—schools in Texas and Florida
  3. Humidity troubleshooting sequence and procedures
  4. Case history—community clinic in Southeast Asia
  5. Troubleshooting the HVAC side of the problem
    1. Hands-on: Calculate lb/hr removed from a room by dry supply air
  6. Summary

FRIDAY – May 4, 2018

TECH SESSION 1A — 8:30 AM to 9:30 AM
2nd Floor: Salon ABC
Chris Mathis – How Long Will it Last? Addressing the Challenge of Sustainability

This lecture explores some of the roadblocks, pitfalls and opportunities on the road to truly sustainable buildings. It invites the audience to question long held assumptions and habits in building design, engineering and construction, and challenges how we assess numerous building performance attributes. From energy efficiency to durability to life expectancy, we will explore some of the challenges necessary to establish meaningful product and building performance metrics. We will examine how these sustainability objectives fit in with ASHRAE’s minimum code standards (90.1 and 90.2), green building standards (189.1 and 189.2) and others.

TECH SESSION 1B — 8:30 AM to 9:30 AM
2nd Floor: Salon D
Hoy Bohanon – Applying ASHRAE Standards to Existing Buildings

Many ASHRAE Standards are design standards addressing the design of new buildings. Recently ASHRAE published Standard 100-2015 Energy Efficiency in Existing Buildings. Other standards such as Standard 62.1 and Standard 55 also can be applied to existing buildings and are referenced by various sustainability and energy certification programs. What parts of these standards apply to existing buildings and how can facility managers use them to improve their operations? What other ASHRAE Standards, Guidelines, and Publications are available to improve sustainability of our existing building stock?

TECH SESSION 2A — 9:45 AM to 10:45 AM
2nd Floor: Salon ABC
Chris Mathis – Energy Efficient Windows and Fenestration

There are now thousands of new, different window and glazing technologies available to both residential and commercial building professionals. Many of these technologies have dramatic impacts on HVAC sizing, peak loads and thermal comfort. This presentation will provide attendees with valuable information concerning key performance indices necessary in making energy efficient fenestration product decisions. Implications on HVAC sizing, peak loads and human comfort will be addressed. Implications for existing and new buildings will be discussed.

TECH SESSION 2B — 9:45 AM to 10:45 AM
2nd Floor: Salon D
Hoy Bohanon – How to Implement DCV and Comply with ASHRAE Standards

ASHRAE standards 90.1 and 189P require demand control ventilation in some instances. ASHRAE standard 62.1 allows demand control ventilation but places restrictions on its application. Many existing installations do not comply with the requirements of ASHRAE Standard 62.1. What is required and what strategies and technologies can be used to meet the requirements of the all the standards?

TECH SESSION 3A — 11:00 AM to 12:00 PM
2nd Floor: Salon ABC
Chris Mathis – 90.1 and the Future of Building Energy Performance

Advances in commercial building technologies have made possible dramatically greater levels of energy efficiency than ever before. New lighting, fenestration and glazing technologies, insulation innovations, air sealing, advanced HVAC systems and new diagnostic tools all create new opportunities for anyone working in the commercial building industry. This presentation will provide information about commercial construction technologies for both new and existing buildings. It will also provide a preview of expected changes in the upcoming 2019 version of ASHRAE 90.1, and their implications for commercial building design and operation.

TECH SESSION 3B — 11:00 AM to 12:00 PM
2nd Floor Salon D
Hoy Bohanon – Commissioning, Operating, Maintaining Air-to-Air Energy Recovery Systems

How does one commission energy savings equipment such as air-to-air energy recovery? What are key performance factors that must be measured? When can you simulate and when must you measure? Devices addressed include air-to-air energy recovery plates and wheels, desiccants, run around loops, and water-side economizers.

TECH SESSION 4A—1:45 PM to 2:45 PM
2nd Floor: Salon ABC
Julia Keen – Ethical Decision Making – An Exercise in Application

In lieu of the traditional lecture style presentation, this is a structured interactive exercise. The participant will be provided a copy of both the ASHRAE and the Professional Engineering Code of Ethics. A methodology for ethical decision making will be introduced. Realistic ethical dilemmas from the practice of building design and construction will be presented. Based on the information provided and using the provided Codes of Ethics the participants will be asked to make their own decision, discuss this with their table, and then be lead through the decision making process as a group. The ethical dilemmas begin as fairly simple black-white analysis and are progressively made more complex during the session.

TECH SESSION 4B—1:45 PM to 2:45 PM
2nd Floor: Salon D
Mick Schwedler – Chilled water systems for YEA: What the Gen Xers and Baby Boomers have done wrong!

This seminar, originally presented at the 2013 ASHRAE annual conference, covers common chilled water system mistakes; and more importantly how to avoid or mitigate them. Chilled water systems covered include new, retrofit, conversion/addition, and replacement. In addition control options are also discussed.

TECH SESSION 5A – 3:15 PM – 4:15 PM
2nd Floor: Salon D
Julia Keen – Targeting Success – Improve Employee Satisfaction and Profit

As the building design and construction industry looks at the composition of the future workforce it is clear that the demographics of today will need to change to meet future demand for employees. It is projected that this change will include increasing the number of women employed in the building design and construction industry. We have seen an increase in young women enrolling in STEM disciplines at the university level and an improvement in the numbers attaining college degrees but we have not seen the same increase in the percent of women employed in the STEM workforce. This inconsistency can be attributed to poor retention of women once they enter the profession. This presentation will address why women leave the industry and what can be done to help increase retention. This is an important topic for our industry as a whole as well as for employers trying to minimize turn-over and maximize productivity and profit.

TECH SESSION 5B – 3:15 PM – 4:15 PM
2nd Floor: Salon ABC
Mick Schwedler – Waterside Heat Recovery

This presentation provides information that helps the design engineer properly determine if heat recovery is justified, and aids in properly selecting equipment, determining proper system configuration, and accounting for controls to ensure proper operation.


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