Evaluation of High-Rise Building-Based Hydroelectric Systems for Improving Energy Efficiency at the Urban Scale

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Creator: 

Walker, Tristan

Date: 

2022

Abstract: 

This thesis presents two alternative building-based hydroelectric technologies with the potential to improve energy efficiency at an urban scale. These systems are a hydroelectric turbine driven by wastewater, and building-based electricity storage systems in the form of either pumped hydro or gravity modules. Current analysis investigates the techno-economic tradeoffs of each technology through numerical modeling of each system and their corresponding scenarios. Results show that the wastewater hydroelectric turbine can increase a building's pumping system's efficiency by 36% and is cost-effective when installed in buildings with a minimum of 35 floors and 47 units per floor. This is highly sensitive to electricity rate. The gravity module can offer higher power capacity at a lower levelized electricity cost than the pumped hydro, with a maximum energy capacity reaching 1,358 kWh in 300 m buildings, and lower levelized electricity cost than equivalent lithium-ion battery systems in all buildings taller than 156 m.

Subject: 

Energy
Engineering
Engineering - Mechanical

Language: 

English

Publisher: 

Carleton University

Thesis Degree Name: 

Master of Applied Science: 
M.App.Sc.

Thesis Degree Level: 

Master's

Thesis Degree Discipline: 

Engineering, Sustainable Energy

Parent Collection: 

Theses and Dissertations

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