Energy audits, Cantor Art Center, Cecil H. Green West Library

System overhaul: Energy audits, Cantor Art Center and Cecil H. Green West Library; Salas O'Brien


Cantor Art CenterProject name: Energy audits, Cantor Art Center and Cecil H. Green West Library

Location: Stanford, Calif.

Firm name: Salas O'Brien

Project type, building type: System overhaul, art/museum venue

Project duration: 4 years

Project completion date: Nov. 2012

Project budget for mechanical, electrical, plumbing, fire protection engineering only: $367,800

Engineering challenges

The projects were challenging to implement in an operational facility. Each system had to be done one at a time so that the entire building was not affected. Because these historic buildings were not built in a humidity-controlled space, they dry out quickly once they are shut down and take a substantial amount of time (more than a week) to reach steady state again after start-up. This amplified the need to have redundancy in the new systems. Commissioning lasted several months as the new systems dynamics were learned by the in-house EMCS staff along with finding problems with existing equipment. This also was a cultural change given the learning of new sequences based on dew point instead of relative humidity.

Rodin Garden Cecil H. Green Library, image of exterior (Click to enlarge)Solutions

Stanford University, as part of its energy program, targeted two historic buildings for energy audits—Cantor Art Center and Cecil H. Green West Library—due to their relatively high energy usage when compared to other buildings. The audit focused on a few energy projects and was followed by design and construction of these projects. Now that these have been installed for a full year, through measurement and verification, savings of over $500,000/year have been proven. Mechanical systems in the buildings consisted of constant volume central station air handling units (AHUs) with fixed outside air, humidification, chilled water, and reheat coils. These AHUs were controlled by an energy management and control system (Rosemont). The control sequences were standard for this type of application. Modulating the chilled water coil and heating coil depending on demand controlled zone temperatures, and modulating the chilled water for dehumidification and the steam-to-steam humidifier for humidification controlled zone humidification. Trending of this data revealed hunting of both temperature and humidity.

Additional Information 

View a presentation from Salas O'Brien on the project

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 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...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

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.