Browsing by Subject "Heating"

Now showing 1 - 6 of 6

Calculating the structure of protoplanetary disks within the first few AU using Pisco
(2011-12) Harrold, Samuel Thomas; Lacy, John Howard; Jaffe, Dan
The calculation of the physical conditions near the inner rim of a protoplanetary disk using the new computational model Pisco is described. Diagnostic plots illustrate solutions for disk structure, radiation field, chemical composition, and heating and cooling of the disk in a steady-state approximation for both disks with unsettled dust and with settled dust. Disks with unsettled dust are found to have hotter gas temperatures above the disk photosphere and a more pronounced temperature inversion at the disk photosphere. Recommendations are made for the development of Pisco. Pisco has the potential to explore what observed molecular emission can imply about disk structure.
G.R.A.C.E. satellite thermal model
(2012-12) Jones, Fraser Black III; Howell, John R.
I developed a thermal model of the Gravity Recovery and Climate Experiment satellite for the Center for Space Research to use in verifying their thermal models and for developing the next generation of satellites for their experiments. I chose COMSOL to model the satellite and used ProEngineer and 3Ds Max to generate the mesh from a .STEP file provided by DaimlerChrysler. I adjusted the model based on previous computer models and actual telemetry data from the GRACE satellite provided from 2002 through 2008. Using the model, I developed a sensitivity analysis of the satellites key thermal environment components and used that to recommend design changed for the next generation of satellites. Special attention should be given to redesigning the Star Camera Arrays and the heat transfer between the Main Equipment Platform and the Radiator.
Geothermal systems: system types, applicability and environmental impacts
(2009-11) Morris, Alex; Sheets, Andrea
Geothermal energy is often overlooked during discussions of green and sustainable energy sources. But due recent advances in technology and the rising cost of other energy sources, research now shows that geothermal systems may be one of the most cost-effective and environmentally friendly options. This paper discusses the technology of geothermal energy for heating and cooling buildings, its cost advantages, and its environmental effects (positive and negative). Based on research by Bruce L. Cutright.
How to
(2011-07) Milovanovic-Bertram, Smilja; Hauser, Johanna
A broad overview of the issues involved in designing sustainable buildings, and of how various construction methods and design features are used in sustainable architecture. Topics covered are: envelope, lighting, heating, cooling, energy production, water and waste, and LEED rating categories.
Regional and historic standards of comfort
(2009-10) Kamholz, Jenna; Storer, Lisa
A look at comfort, and the differences in our definitions and expectations of comfort through history and across cultures. This paper also considers the impact of technological advances in air conditioning on the perception of comfort.
Thermal performance in mid/large buildings : in hot, humid climates
(2009-10) Galloway, Ross; Brown, Meredith
This paper presents on overview of several vernacular and passive strategies as an alternative to the standard HVAC system. It examines the performance demands of large buildings in Austin, Texas and addresses several potential methods for cooling and dehumidifying buildings, including: preventing solar heat gain, ventilation strategies, ground cooling, convection cooling, desiccant cooling, evaporative cooling, and use of multiple zones.