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Actuation Of An Inertia-Coupled Rimless Wheel Model Across Level Ground, Seth Caleb Weeks
Actuation Of An Inertia-Coupled Rimless Wheel Model Across Level Ground, Seth Caleb Weeks
Theses
The inertia-coupled rimless wheel model is a passive dynamic walking device which is theoretically capable of achieving highly efficient motion with no energy losses. Under non-ideal circumstances, energy losses due to air drag require the use of actuation to maintain stable motions. The Actuated Inertia-coupled Rimless Wheel Across Flat Terrain (AIRWAFT) model provides actuation to an inertia-coupled rimless wheel model across level ground to compensate for energy losses by applying hip-torque between the frame and inertia wheel via a motor. Two methods of defining the open-loop actuation are presented. Position control defines the relative position of the drum relative to …
The Case Of Villa Benfica: Retrofitting A Multifamily Building In A Hot And Humid Climate For Energy Efficiency, Carolina Kuhner Camara Dos Santos
The Case Of Villa Benfica: Retrofitting A Multifamily Building In A Hot And Humid Climate For Energy Efficiency, Carolina Kuhner Camara Dos Santos
Theses
Buildings and constructions occupy 50% or more of a city's land area and impact the environment with their elevated energy consumption. The current debates involving alternatives to limit the impacts of climate change have informed decision makers, architects, and engineers on design alternatives addressing energy efficiency in new constructions, but the existing building stock requires adaptation. Existing buildings are locked in an inefficient typology. In this context, this work presents energy efficient strategies to retrofit a typical residential building in Recife, Brazil. The study involves the application of three retrofit strategies concerning the building envelope to a baseline building, and …
Energy Savings And Marginal Emissions Factor Approach To Emissions Reductions From Household Appliance Efficiency Improvements, Courtney N. Smith
Energy Savings And Marginal Emissions Factor Approach To Emissions Reductions From Household Appliance Efficiency Improvements, Courtney N. Smith
Theses
The goal of this thesis is to estimate the total emissions avoided from replacing residential lighting and air conditioning with more energy efficient versions, while showing that the marginal emissions factor (MEF) approach to estimating these avoided emissions tends to be a more accurate method than the average emissions factor (AEF) approach. This thesis is the first to use MEFs to analyze emissions avoided from household energy efficiency improvements. This approach considers emissions avoided from the last power plant that would have been dispatched to meet demand, in contrast to the more commonly used AEF approach that considers emissions avoided …