College, university building HVAC design

College and university campus buildings have a lot going on—classes, research, dining, and sleeping. HVAC and air quality are key aspects of these buildings.

12/18/2013


Robert Garra, PE, CDT is Vice president, electrical engineering of Cannon Design, Buffalo, N.Y. Courtesy: Cannon DesignRandy Hassler, PE, LEED AP is a Principal at McClure Engineering, St. Louis, MO. Courtesy: McClure EngineeringAndrew Slater, PE, is an electrical engineer at HGA Architects and Engineers in Milwaukee, WI. Courtesy: HGA Architects and Engineers

Participants

Robert Garra, PE, CDT, Vice president, electrical engineering, Cannon Design, Buffalo, N.Y.

Randy Hassler, PE, LEED AP, Principal, McClure Engineering, St. Louis, MO

Andrew Slater, PE, Electrical engineer, HGA Architects and Engineers, Milwaukee, WI


CSE: What unique requirements do college and university HVAC systems have that you wouldn’t encounter on other structures?

McClure Engineering’s team replaced outdated systems at Washington University in St. Louis; new equipment included a 2,200-ton central chiller plant, three regional hot water boiler plants, and a host of utility infrastructure. Courtesy: McClure EngineeriHassler: Campuses can have many different building types, or types of spaces within the buildings: offices, classrooms, laboratories, libraries, museums, data centers, clean rooms, housing, dining, performance arts, radio station, recreation complex, health care, police station, hazardous waste disposal, power plants, etc. The basic equipment (i.e., pumps, fans, air handling units, heat exchangers) that comprise the systems are similar; however, the diversity of building types requires being grounded in the fundamentals and having knowledge of the nuances of different applications. 

CSE: How can automated features and remote system control benefit campus clients? 

Hassler: Campus buildings, while having nominal occupancy schedules, can be occupied at all hours of the night by facility, researchers, or students. Occupancy sensors can be used to change the “mode” of the zone or system. Often people think of using occupancy sensors only for two states, occupied or unoccupied. There can be four states: normal hours—occupied or unoccupied; and after hours—occupied or unoccupied. This would be an example for an office VAV box with reheat:

  • Normal hours, occupied: minimum cfm for ventilation, space temp setpoint by thermostat.
  • Normal hours, unoccupied: cooling minimum cfm = 0, space temp setpoint 75 F cooling and 70 F for heating. (Strategy is to save reheat when unoccupied and keep the space within a comfortable dead band temperature range. You would not want to return from a meeting to an 85 F office and have to wait for it to cool down.)
  • After hours, occupied: space temp setpoint 75 F cooling and 70 F for heating.
  • After hours, unoccupied: cooling minimum cfm = 0, space temp setpoint 85 F cooling and 60 F for heating. 

CSE: In general, what payback period do colleges and universities expect? 

Hassler: Typically longer than other clients, 10 or more years because they own and operate their buildings for a long time. Many owners also want to consider lifecycle cost considering energy, system life, maintenance, and end-of-life replacement cost in the evaluation.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
2016 Product of the Year; Diagnose bearing failures; Asset performance management; Testing dust collector performance measures
Safety for 18 years, warehouse maintenance tips, Ethernet and the IIoT, GAMS 2016 recap
2016 Engineering Leaders Under 40; Future vision: Where is manufacturing headed?; Electrical distribution, redefined
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Safety at every angle, Big Data's impact on operations, bridging the skills gap
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Driving motor efficiency; Preventing arc flash in mission critical facilities; Integrating alternative power and existing electrical systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role of plant safety and offers advice on best practices.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me