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Managing Operations While Transitioning to Carbon Neutrality

Summary Cornell University explores the complex operating environment and the decisions necessary to operate its district utility systems in both an economic and sustainable manner. Discussions in this talk will include: why is it important set a price on carbon, and how can it be done; what...

6E.3_LaPenna_Quist.pdf


Library Entry
Flexible Grid-Integration with District Energy - What Are the Barriers?

Summary When district energy’s flexible integration with the electricity grid can integrate renewables, reduce costs and make the system more resilient, why is it not always happening? In this study, six experts + plant managers at ten US campuses share knowledge on barriers for flexible...

6E.2_Sneum.pdf


Library Entry
Field Erected Large Industrial Hot Water Generator Installation at the University of Virginia

Summary The University of Virginia has recently completed a project that installed a 100MMbtu/hr hot water generator. This project supports the LTHW conversion currently in progress and represents the first phase of the Main Heat Plant transition from steam to hot water. Additional heating...

6D.3_Zmick_Farr_Landrum_Seckler.pdf


Library Entry
How Low Can You Go? Costs & Technical Considerations of Lower-Temp HW Building Conversion

Summary Shifting priorities and goals of university leadership reach ever deeper to obtain carbon reductions. Converting buildings to accept lower-temperature hot water has tremendous benefits, yet the costs and technicalities involved in this transition can be daunting. This presentation...

6D.1_Bohn.pdf


Library Entry
Harvesting Waste Heat to Power District Energy Systems

Summary Over half of the energy consumed in the United States is rejected as waste heat. There exists a tremendous opportunity to capture and use that waste heat to reduce overall energy consumption and decrease the environmental impacts from heating our buildings. Often, the waste heat is of...

Poster_5_Fehrer_Radoff.pdf


Library Entry
Advancements In Boiler Water Internal Treatment Technology

Summary Waterside scale deposits in steam boilers can have a dramatic impact on fuel efficiency, boiler structural integrity, and maintenance costs for the steam plant operation. In severe cases, waterside scale accumulations can cause boiler tube failures due to overheating, restriction of...

4D.4_Porier_Morrison.pdf


Library Entry
Improving Water Efficiency Through Capacitive Deionization

Summary Capacitive Deionization technology is used to reduce dissolved ion concentration, thus lowering the makeup water conductivity prior to use in an evaporative cooling system. A typical 50% ion reduction allows the operating cycles of concentration to be safely doubled. Track 4D: Water...

4D.3_Alexander.pdf


Library Entry
The WaterHub® - Sustainable Utility Management Through Water Reclamation and Reuse

Summary The Virginia WaterHub® is producing 650,000 GPD of Level 1 Reclaimed Water per State of Virginia standards for a Fortune 100 and FDA regulated manufacturer. The system is expected to decrease total potable water use by up to 40% and total wastewater discharge by up to 70%. Track 4D:...

4D.2_Salvatelli.pdf


Library Entry
Direct Non-Potable Water Reuse in the Northeastern US – A Resource for Campus Energy Facilities

Summary Over thirty blackwater reuse systems produce fit-for-purpose non-potable water in the Northeast, and some have been online for more than 25 years. The high cost of water and wastewater services and the increased need for resiliency against droughts (anticipated to be more severe due to...

4D.1_Douglas.pdf


Library Entry
Thermal Infrastructure Planning, Rehabilitation, & Expansion at the University of South Alabama

Summary With an aging thermal utility system, the University of South Alabama knew that to meet future expansion needs, significant system wide thermal utility upgrades would be required. The University started with implementing projects that would show fast energy savings allowing for quick ...

5E.1_Alexander.pdf