Lauren Kumle, Tess Sobol, Jaboc Heglund, and Tommy Robey in CEE 493 - Sustainable Design Engineering Technology worked with Dr. Andy Stumpf in Fall 2020 on a Deep Direct Use (DDU) geothermal proposal for north campus.

Dr. Stumpf provided this information to the team in September:

If your team is interested, you might consider a different technology for geothermal energy at Newmark Civil Engineering Laboratory. Specifically a deep direct-use (DDU) geothermal energy system (GES). I suggest this because I am not certain there is enough ground space at Newmark for a geothermal borefield like at CIF. The advantages of DDU GES is it requires fewer wells, and there would be enough thermal energy extracted to condition space in multiple buildings. Essentially, the DDU GES comprises extraction and injection wells (likely 2 of each needed) to access geothermal fluids (brine) from deeper bedrock formations. Under campus, one of the potential bedrock formations, the St. Peter Sandstone, lies at ~2,000 feet depth and contains an abundant amount of fluid at 78-82°F. When I last talked to Professor Liang Liu (who recently retired from College of Engineering), he was very interested in a study for DDU GES for the Engineering quad (south of Grainger library). So I think your findings from this type of system would be timely and more likely to be implemented.

My colleagues and I just completed a feasibility study of DDU GES for six agricultural research facilities on the South Farms (see summary paper attached).

The focus was on the deeper Mt. Simon Sandstone (lying at >6000 feet depth) because we were interested in extracting the hottest brine (110-130°F) since some of the farms needed to make hot water. They are not connected to the steam and hot/cold water energy system servicing the main part of campus, so propane and natural gas are the primary fuels. However, the St. Peter Sandstone would be an alternative… and this formation is also being considered for cooling buildings.

If you are interested in looking at DDU for the Newmark site, I can share the report with you. It should contain much of the information you need. Some of colleagues can help you with the life cycle costs and mechanical energy system analyses. Completing this project would also help researchers on campus compete for funding from DOE to complete tests wells which will be needed to validate your findings. DOE is very interested in developing DDU GES in non-volcanic areas of the US, especially for district-energy systems. Cornell University just received funding from DOE for a test well to develop a DDU GES on their campus, but they will most likely have to drill >15,000 feet into the Precambrian granite develop the system. They are looking to generate electricity with very hot water. https://eos.org/science-updates/exploring-by-boring-geothermal-wells-as-research-tools.

Doing a rough calculation, I think constructing a DDU GES would be of similar cost to a shallow borefield with 50-100 wells. The DDU GES would be much more efficient since you are directly using the heated brine and not trying to conduct heat in the ground. The payback period would be much quicker since it will be servicing more than one building.

 On 9/25/2020, Lauren, Tommy, and Jacob met with Dr. Stumpf.  He provided the following update:

I had a meeting with Lauren Jacob and Tommy today about their design project. I suggested they look at a DDU system that would heat/cool 4 buildings (Newmark, DCL, Uni High, and Siebel Center). I guess the number of buildings will depend on the amount of energy that can be extracted from the geothermal reservoir. I also suggested they look at the shallowest reservoir, the St. Peter Sandstone. As part of their analysis, they indicated there is a need for building level energy use data.

Final Project Deliverables for Spring 2020

There were 7 projects completed by the WIE-GFX Abroad Scholars in the Spring 2020 semester of ENG 177

1. Armory Bike Path Restoration
2. Study Abroad Carbon Offset
3. Electric Vehicle Charging Stations
4. AASHE STARS Report 2020
5. Food Waste
6. Sustainability Best Practices Guide
7. EPA SmartWay Program

The SSC awarded $50,000 for the "Bike Path Renovation: Armory Avenue Path South of Gregory Hall". This award will expire on May, 2022. Please see attached the Funding agreement.

Here are the files associated with the EPA SmartWay Program.

Abby Culloton, a freshman in Civil and Environmental Engineering, put together a project proposal for the SmartWay program and presented it on February 28th. This proposal included why being an affiliate of this program would be beneficial to campus, who/ what departments across campus would be involved, proposed objectives, and other facts that needed to be considered. 

Attached is the full proposal.

Per the executive summary report, "One goal of the University of Illinois at Urbana-Champaign (UIUC) is reaching carbon neutrality by 2050. This is outlined in the Illinois Climate Action Plan, a proposal which also establishes a goal for annual solar energy generation. UIUC’s large energy demand poses an opportunity for implementing more cost-efficient renewable energy and increasing efficiency. The purpose of this study was to determine the feasibility of a solar canopy system with electric vehicle (EV) charging stations at a UIUC parking lot. The goal of this initiative was to reduce campus emissions, save money, and use parking lots as a place to create renewable energy."