Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"Thermostat"”.
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A persuasive GPS-controlled thermostat system
… could augment existing manual and programmable thermostats. Although manual and programmable thermostats can save large amounts of energy when used properly, studies have shown that well over 40% of U.S. homes may not use energy-saving setbacks when homes are unoccupied. We estimate that using a …
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Metrics thermostat for strategic priorities in military system acquisition projects
… teams. An emerging framework for a "metrics thermostat" based on an agency theory model for selecting and prioritizing metrics for product development teams has shown promising results in two commercial applications. This study focused on applying this framework to one of the government's …
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A predictive learning control system for an energy conserving thermostat
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.
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INVESTIGATION OF STRATEGIES FOR IMPROVING THE PERFORMANCE OF SMART THERMOSTAT-DRIVEN FDD METHODS
… for evaluating the performance of smart thermostat-driven fault detection and diagnosis (FDD) methods that are intended for vapor compression air conditioning (AC) systems in residential homes. Though there have been some research efforts within the last decade on smart thermostat-driven …
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Influence of passenger car air conditioner system thermostat level setting to fuel consumption and thermal comfort
… is hot and humid all year. Passenger adjusts the thermostat level (temperature knob setting) position to regulate the cold air temperature supplied to the cabin. By adjusting the thermostat, it affects the vehicle fuel consumption. When thermostat level is set to the lowest setting, compressor …
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Exploring Energy, Comfort, and Building Health Impacts of Deep Setback and Normal Occupancy Smart Thermostat Implementation
<p>As smart thermostat adoption rates continue to increase, it becomes worthwhile to explore what unanticipated outcomes may result in their use. Specific attention was paid to smart thermostat impacts to deep setback and normal occupancy states in a variety of conditions while complying with the …
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Reengineering metrics systems for aircraft sustainment teams : a metrics thermostat for use in strategic priority management
… metrics feedback construct called the Metrics Thermostat. System structure is explored through common correlation and regression analysis as well as more sophisticated structural equation modeling and systems dynamics techniques used to explore potential feedback loops. The F- 16 is used as a …
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An Expert-based Approach for Grid Peak Demand Curtailment using HVAC Thermostat Setpoint Interventions in Commercial Buildings
… energy savings across a stipulated range of thermostat setpoint temperatures and (d) AHP-based demand curtailment scheme. By careful modeling, it is shown that commercial building models developed using this methodology are both accurate and robust. As a result, the proposed approach can be …
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The Impact of Thermostat Automation and Retail Rate Designs on Cooling and Heating Flexibility: Balancing Consumer Preferences and an Efficient Grid
… On the other hand, the growing use of smart thermostats presents an opportunity for passive, efficient control of household energy consumption. Combining smart thermostats with appropriate price signals creates an opportunity to optimize the balance between energy cost and thermal comfort. …
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Thermostated Kac models
… among them interacting, in addition, with a thermostat. When m = N, we show exponential approach to the equilibrium canonical distribution in terms of the L2 norm, in relative entropy, and in the Gabetta-Toscani-Wennberg (GTW) metric, at a rate independent of N. When m < N , the exponential …
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A study of the potential impact of smart thermostats on residential energy efficiency and demand response in North America
… thesis evaluates the potential impact of smart thermostats on the residential energy efficiency and demand response in North America. Smart thermostats are rapidly gaining popularity, and our estimations indicate that today there are more than nine million units already installed in North …
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The Optimal Control of Liquid Type Solar Energy Systems
… of the flow rate is compared to the differential thermostat and proportional control methods of controlling the flow rate. It was found that the optimal method produced solar energy system efficiencies that averaged 8.5% higher than those produced by the differential thermostat and 4.8% higher …
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Development of an Occupant-centric Control Algorithm for Mixed-Mode Ventilation Buildings to Regulate Window Operations
… by research investigating occupants' window and thermostat use behaviour. This research analyzes window and thermostat use data collected from two mixed-mode ventilation buildings in Ottawa, Canada. Based on this analysis, the control algorithms are developed, and 3-16% of energy reductions could …
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Potential Ignition Sources from Residential Electric Cooktops
… range was tested in the high, medium, and low thermostat settings on the large (8" diameter) and the small (6" diameter) heating elements resulting in a total of 54 tests per range type. An additional eight tests were completed to insure repeatability of results. As confirmations of …
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Design and manufacture of low cost vaccine cooler
… valve was combined with a modified car thermostat, using peanut oil as its working fluid, to create a thermosyphon type heat transfer device with a safety shutoff to prevent freezing. The prototype was manufactured and tested. It was found that with the proper amount of working fluid, it …
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Airflow in Interior Spaces: Implications on Comfort and Health
… work extends on that theme to propose improved thermostat placement targeting the reliability of the thermostat readings to serve as a proxy for thermal comfort. Finally, this work looks at dispersion of bioaerosols within a classroom environment. Via simulations, this work contributes through …
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Transforming an existing facility into an Energy Plus building
… pump, implementing a Wi-Fi enabled programmable thermostat to control temperature set points, and installing additional solar panels on the roof. The goal can be achieved by reducing annual energy consumption from approximately 96,000 kWh to approximately 18,000kWh while producing approximately …
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Rigidity results for thermostats
A thermostat is a dynamical system modelling the motion of a particle on a surface under the influence of a force that is always orthogonal to its velocity. Since this force is allowed to depend on the particle's velocity, the system can be dissipative. As a generalization of geodesic and magnetic …
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ENSURING SPECIFICATION COMPLIANCE, ROBUSTNESS, AND SECURITY OF WIRELESS NETWORK PROTOCOLS
… smart appliances and gadgets (e.g., smart thermostat, wearables, smartphones), which has ensuingly shaped our modern digital life. These technologies include several communication protocols that usually have stringent requirements stated in their specifications. Failing to comply with such …
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Conception d'un système intelligent de contrôle du chauffage électrique pour la gestion de la demande énergétique résidentielle
… systèmes de gestion de l’énergie domestique. Les thermostats électriques utilisés pour contrôler la température intérieure des maisons avec ces types de systèmes de gestion ont évolué la dernière décennie, en commençant par les thermostats manuels, en passant par les appareils programmables, et en …
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