Team 1818: Wastewater Treatment Plant Microgrid Christopher Angi, Kelly Higinbotham, Wyatt VanFossan Advisor: Peng Zhang Sponsored by: Commercial Solar Works
Outline ● Design Challenge Objectives and Limitations ● ● Design Elements ● Deliverables ● Timeline Raci Analysis ● ● Summary
Design Challenge Design a Microgrid to support a Wastewater treatment plant. This would include retrofitting the following units to an existing WWTP and updating controls to allow for islanding. This Project is sponsored by Commercial Solar Works. Biodigester ● Synchronous Generator ● Solar Array ● Battery Storage ●
Objectives: Limitations: Reduce sludge disposal costs Site space ● ● Save on energy costs Current site loads and flow rates ● ● Allow Plant to operate during a must be considered ● grid outage Cost efficient materials ● 1 Day of islanded operation ●
Elements: Biodigester ● Role: Dispose of waste slurry and produce methane to run generator ● Size: Based on flow rates of waste slurry ● Responsibility of ENVE team https://vortportblog.wordpress.com/tag/biodigester/
Elements: Generator ● Role: Burn Methane to create three phase AC Power to run plant loads ● Size: Based on Methane production and energy needs of the plant ● Type: Synchronous generator Controls: Constant power or droop ● control http://www.alternative-energy-tutorials.com/wind-en ergy/synchronous-generator.html
Elements: Solar Array ● Role: Supplement the Generator output to fulfill loads of the plant when islanded ● Size: Based on solar potential of site and difference between Generator output and loads ● Controls: Maximum Power Point Tracking Method https://www.redarc.com.au/what-is-mppt
Elements: Battery Storage ● Role: Be a dispatchable source to account for changes in solar production ● Size: Based on needs for dispatchable energy, will be charged during peak hours to be used in off hours ● Controls: Droop Control https://www.google.ch/patents/US7577006l
Deliverables 1. Site plan: location, choose a WWTP, Choose equipment locations. Document showing land parcel with three sources added in 2. Riser diagram: existing electrical infrastructure with 3 sources integrated in 3. Energy Production Model: How much methane can be produced, how much PV will be needed
Timeline
Raci Analysis
Summary Questions?
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