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Full-Text Articles in Mechanical Engineering

Residential Attic Ventilation In A Hot And Humid Climate: Effects Of Increased Ventilation On Thermal Performance And Moisture Control, Stanley Arthur Atherton Dec 2011

Residential Attic Ventilation In A Hot And Humid Climate: Effects Of Increased Ventilation On Thermal Performance And Moisture Control, Stanley Arthur Atherton

Masters Theses

The reality of the effect of natural ventilation in a residential attic cavity has been the topic of many debates and scholarly reports since the 1930’s. The purpose of ventilating an attic cavity is to prevent collection of condensate on the structural surfaces, and to create a thermal buffer between the conditioned space and the ambient air. The current standards are not specific to climate zone, despite the fact that each climate zone may require ventilation for very different reasons.

To address the issue of ventilation effects in a hot and humid climate, a Natural Exposure Testing facility was constructed …


Thermocouple Temperature Measurements For Twin Jet Thermal Mixing, Spero Michael Peters Dec 2011

Thermocouple Temperature Measurements For Twin Jet Thermal Mixing, Spero Michael Peters

Masters Theses

Thermocouples are commonly used devices for temperature measurement. This study concerns the implementation of thermocouples to collect thermal mixing data in an environment in which two parallel water jets are mixing. The measurements are taken with the purpose of modeling the jet mixing region so that Computational Fluid Dynamics (CFD) models can be validated against the test data. This thesis covers the design, construction, implementation and evaluation of a thermocouple system for immersion in a water environment to measure the thermal mixing of twin jets.

The measurement system being used is a thermocouple rake whose design and fabrication is covered. …


Effects Of Supercooled Water Ingestion On Engine Performance, Rick Hutchings Aug 2011

Effects Of Supercooled Water Ingestion On Engine Performance, Rick Hutchings

Masters Theses

An aircraft will encounter freezing rain, snow, and ice during ground operation and flight. In cold conditions, ice may form on th einlet and internal stators and rotors of the gas turbine engine. When ice accumulates on blades (and/or stators), the aerodynamic characteristics of the blades change due to the altered size, shape, and roughness. This change causes the blade to no longer operate at its design point and decreases compressor performance. Therefore, characterization of the aerodynamic performance is required to define the associated losses due to the effects of supercooled liquid water ingestion. This characterization can be accomplished through …


Solar Decathlon Controls, James Mitchel Routh, Travis Lathrop, Colby Jarrett, Zach Cross May 2011

Solar Decathlon Controls, James Mitchel Routh, Travis Lathrop, Colby Jarrett, Zach Cross

Chancellor’s Honors Program Projects

No abstract provided.


Team Tennessee Solar Decathlon Hvac System, Susan Katherine Reid, Kevin Kelly, Brad Hight, Sam Felton May 2011

Team Tennessee Solar Decathlon Hvac System, Susan Katherine Reid, Kevin Kelly, Brad Hight, Sam Felton

Chancellor’s Honors Program Projects

No abstract provided.