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- Associated Project(s):Attached Files:
Second Nature Resilience Working Group call #1
Associated Project(s):Ruby Woodside at Second Nature held a Resilience Working Group conference call on Feb 3, 2017. The meeting notes are attached here.
Attached Files:MOU ready to sign
Associated Project(s):The UI Extension and F&S Grounds have agreed upon a Memo of Understanding (MOU) for the maintenance and care of the Red Oak Rain Garden. An unsigned copy is attached here, and it will be routed for signature.
Attached Files:Water Use and Cycles of Concentration (COC) in a cooling tower
Associated Project(s):Below is information provided by Jeremy Overmann, B.S. Ch. E., Water Treatment Specialist, on the water use and cycles of concentration (COC) in a cooling tower, as requested after a Land and Water SWAT meeting.
"
Water SWAT members,
Here is some more information regarding the cooling tower discussion at today’s meeting.
This first graph shows how much water a typical 100 ton Cooling Tower uses per hour, and how this changes when the tower is operated at various Cycles of Concentration (COC)
NOTE: a 1 ton cooling tower can remove 15,000 BTU/hr of heat.
Most standard chemically treated Cooling Towers use unsoftened water and operate between 4 – 6 COC, depending on the source water quality (also called Make-Up water) and the efficacy of the chemical treatment program.
As COC increases, the potential for formation of calcium scale (and possibly other types of scale) increases. Scale deposits reduce the energy efficiency of the chiller and the cooling tower, and result in the need for labor intensive cleaning to remove the scale.
The following table shows the relationship between volume of Cooling Tower blowdown (bleed), blowdown rate (% bleed), COC, and total water usage.
Cycles of Concentration is controlled by choosing the rate of blowdown. This is done by controlling the blowdown (bleed) valve at the bottom of the tower.
COC
BLOWDOWN
TOTAL USAGE (Makeup)
Gallons
Percent
Gallons
Percent
1.5
10,000
100%
15,000
100%
2
5000
50%
10,000
66%
3
2500
25%
7500
50%
4
1667
17%
6667
44%
5
1250
13%
6250
42%
6
1000
10%
6000
40%
7
833
8%
5833
39%
8
714
7%
5714
38%
Note: Evaporation = 5000 Gallons
In a “Zero” blowdown cooling tower, softened water is used, and cycles of concentration ranges from 20 – 100 or higher. To achieve proper water chemistry to provide corrosion protection, usually need to operate at > 20 COC.
During the Champaign Regional Office Building study, the highest COC achieved was 51. The blowdown valve is turned off, however some water is lost from leaks in the tower, and from droplets of water that escape with the air that is drawn through the tower.
COC
BLOWDOWN
TOTAL USAGE (Makeup)
Gallons
Percent
Gallons
Percent
1.5
10,000
100%
15,000
100%
5
1250
13%
6250
42%
10
555
6%
5550
37%
25
208
2%
5208
35%
50
102
1%
5102
34%
75
66
0.7%
5066
34%
100
51
0.5%
5051
34%
200
25
0.3%
5025
34%
Note: Evaporation = 5000 Gallons
"
Stormwater Utility Fee overview
Associated Project(s):The University pays a stormwater utility fee to both the City of Urbana and the City of Champaign. The fee is based on total impervious area that drains into city-owned storm sewers. If stormwater drains into university-owned sewers then directly discharges to a receiving stream, there is no fee assessed.
- The current rate for the City of Champaign is $5.24/3,478 sq ft.
- The current rate for the City of Urbana is $5.14/3,100 sq ft.
There are credits and incentives that the university can apply toward the stormwater utility fee. By maintaining compliance with the university’s Municipal Separate Storm Sewer System (MS4) National Pollutant Discharge Elimination Systems (NPDES), the university receives a 5% credit from each city. Additionally, each city has their own Credit and Incentive Manual (attached) which provides an opportunity for the university to reduce their stormwater utility fee by reducing the impact of the runoff from their properties by methods such as installing sustainable storm water practices that allow stormwater to infiltrate into the ground. The manuals have specific guidelines on how to calculate the credits based on the particular stormwater practices that are employed.
Pricing Breaks for higher quantities
Associated Project(s):Hi Solar UC Advisory Committee,
The Midwest Renewable Energy Association (MREA) has accepted the Solar Urbana-Champaign Advisory Committee’s recommendation and contracted with New Prairie Construction to install solar arrays for the second round of our group buy program. MREA and New Prairie Construction have agreed to an amended fee schedule whereby New Prairie will be providing a rebate which will be paid to program participants who sign a contract for services by August 31, 2017 according to the following schedule: $.03/watt if the program reaches 50-150 kW of total capacity; $.06/watt for 150-250 kW; $.09/watt for installed capacity in excess of 250 kW.
Please keep an eye on solarurbanachampaign.com as we will be announcing Solar Power Hours very soon. Please share these event announcements through your networks and let us know of any ideas for additional public engagement.
Thanks!
Scott
Environmental Sustainability Manager
City of Urbana, IL
P: 217-384-2381 - F: 217-819-3167
706 S. Glover Ave. Urbana, IL 61802
Bike Routes – www.urbanaillinois.us/bike-urbana
Plan Your Bus Trip – http://www.cumtd.com or 384-8188
Rates of participation in Eco-Olympics by residence hall
Associated Project(s):Hello Eco-Olympic followers!
It's not too late to sign up! For those who have their team up and running, I highly encourage you all to meet before spring break begins. Once we get back, the competition is on! If you let me know the time and place, I can bring shirts to hand out.
Here is the count of participants signed up for each hall:
Remember that each person signed up gives your one point towards the participation price! Have some tabling events to get people interested!
Best,
Jessica Mondello
Eco-Olympics | Director
Think Globally. Act Locally.Water & Stormwater SWAT Meeting Minutes 3/16/2017
Associated Project(s):Updates on BIF Greywater Meter application. Discussion on Cooling Tower COC and "Zero" blowdown systems.
Attached Files:PWR SWATeam Minutes 3/15
Associated Project(s):At the PWR SWAT Team meeting on March 15th, the team debated over the message in the new Ethics Compliance Message concerning recycling standards and rules. The team decided that two videos should be created, one with base instructions for recycling, the other for explaining the commonly misunderstood paper policy. The team will look more into the paper policy draft and suggest a new paper policy for the campus.
Attached Files:Sustainability interns continue work updating iCAP Portal project pages
Associated Project(s):CEE students Chenxi Jiang and Shuang Chen are working with Morgan Johnston to edit the iCAP Portal project pages for each iCAP objective. Chapters 8-12 do not have SWATeams, and the background research on these chapters has been completed. The edited project pages are scheduled to be online by the end of March. The next step is editing the iCAP objectives for each SWATeam chapter in the iCAP. Chenxi and Shaung will be meeting with SWATeam representatives over the next few weeks to gather information, and then the project pages will be edited to reflect the latest info. We expect to be able to complete this before Earth Day on April 22, 2017.
Plans for wrapping up student project
Associated Project(s):Diliya Murtazina and Morgan Johnston reviewed the work tasks completed this year, and identified files to finalize for the end of this project. Diliya will formalize the behavior change strategies document, collect all the example images, and provide documentation on the creation of the building level energy charts with examples.
South Campus Afforestation Recommendation - Assessment with comments
Associated Project(s):The iCAP Working Group (iWG) met on Feb 16, 2017. They supported the South Campus Afforestation recommendation. Their official comments for this recommendation was:
"The iCAP includes an objective to add 50 acres of trees on campus, and this SWATeam recommendation suggests one potential location. The iWG suggests the College of ACES work with the Campus Master Planning committee to identify appropriate locations for additional trees. Another option to consider is parallel to the Embarras River."
See attached the iWG assessment complete with comments from all the iWG members.
Attached Files:Weekly Update
Associated Project(s):All, Happy Monday! Last week was a steady busy one. We routinely had peaks of busyness and fallow valleys. We had 97 visitors through the doors, including staff. We grossed $951.50. We sold two bikes for $335; one build-a-bike for $61; and 4 memberships for $120.
Overall, last week I was met with a little more enthusiasm for the space than I regularly receive upon explaining the cost structure and mission of the CBC to new visitors. That was nice. Our for-sale bike count after last week sits at 14 for-sale bikes. I keep trying to grow that number up into the 20s but people keep buying them. That’s not a bad thing, I suppose.
Additionally, the two Departmental Share bikes need parts that are on-order so that project will be delayed, unfortunately.
Our numbers for B-a-Bs last year was quite low and as such I will begin photographing—with permission—all those who complete build-a-bikes and posting them on social media, which will serve two important functions: advertising for CBC and its most education-intensive program; and having a picture of owner and bicycle in the event of a stolen or lost bike.
This week I am going to cull a few more unbuiildable bikes from the pile and concentrate heavily on ramping up the for-sale numbers since this week of cold, snowy weather should keep the shoppers at bay. I will additionally focus on drop-bar bicycles, since I’ve noticed people requesting and looking for those more than the about-town cruisers and flat-bar bikes we have for sale, irrespective of how well-suited they are to campus riding.Sincerely,
Jake Benjamin
Campus Bike Center Manager
New Zero Waste Coordinator started work
Associated Project(s):The new Zero Waste Coordinator started work on March 13.
Provost Office approves funding for LED Exit Signs
Associated Project(s):The Office of the Provost approved $75,000 in one-time funding for the next step in the LED Exit Sign retrofit project. The funding of $75,000 is for LED Exit Sign lighting replacement, additions, and new building surveys. Material and labor of $70,000 would be used to replace 343 fixtures in 20 buildings at an average rate of $204/fixture. An additional $5,000 is proposed to survey 50 campus buildings for exit light counts. That will provide the input necessary for the next phase, once this phase is completed.
EGEN SWATeam Meeting (3.10.17)
Associated Project(s):The EGEN SWATeam held another bi-weekly meeting. Topics covered include:
- Associate Director for Campus Sustainability Ximing Cai and his vision for iSEE
- Biomass boiler at Energy Farm
- Opportunities for Geothermal on campus
Attached Files:ECBS SWATeam meeting minutes
Associated Project(s):On the agenda at the ECBS SWATeam meeting:
1) Comments needed on Illini Lights Out (ILO) recommendation;
2) Illini Lights Out final planning for 10th of March;
3) Building level energy consumption report;
4) Participation in Earth Hour and Earth week activities on campus;
5) Updates on the Green Labs Coordinator;
6) Planning for a campus walk focused on space utilization.
Attached Files:iWG Meeting Notes from Jan. 27, 2017
Associated Project(s):The iCAP Working Group met and discussed the following agenda items. Meeting notes are attached.
1. Brief iCAP Portal overview by Morgan
2. Discuss any updates to Water002, Cooling Tower Increase COC
3. Discuss Trans008, Bike Parking in Ramps
4. Discuss updates to Econs004, Green Labs Coordinator
5. Consider issues with recommendation process and view recommendation trackerAttached Files:Sustainability staff discussed the outreach programs on the portal
Associated Project(s):Morgan Johnston, Catherine Yee, and Chenxi Jiang met today to discuss the outreach information listed on the iCAP Portal. Catherine described the Student Sustainability Leadership Council (SSLC) and the Certified Green Office Program (CGOP). We also discussed the Earth Week efforts and the overall purpose of the SSLC as a networking opportunity for students in sustainability groups.
archived info - previous project description
Associated Project(s):A main component of the 2010 iCAP is to engage the outside community in working to create a more sustainable campus. The University of Illinois is working to enhance its engagement activities in the arena of sustainability. Champaign County Network (CCNet) is an effort to engage the campus and the surrounding community in a shared discourse on the critical sustainability and climate issues ahead. The University's Office of Corporate Relations is working to enhance collaborations with corporations in sustainability activities.
The iCAP provides an opportunity to engage the outside community in a dialogue on the University’s role in helping to resolve community climate responses. For example, the Smart Energy Design Assistance Center (SEDAC) is designed to provide assistance to public and private interests in reducing and conserving their operational energy use in buildings. This type of information is an important step in developing meaningful solutions to climate change.