published_or_final_version / abstract / toc / Electrical and Electronic Engineering / Master / Master of Philosophy

This thesis aimed to identify the energy use within the Nova Scotia Layer Industry, through auditing and evaluating layer farms. Using the data collected, energy benchmarks were determined; providing a guide for achieving a measure of energy efficiency on farm. Focusing on lighting use within layer barns, this research aimed to identify how lighting is used and offer an innovative method of achieving reduced energy use without impacting hen performance or production levels.

No description available.

The reduction of fossil fuel consumption and the associated decrease in greenhouse gas emissions are vital to combat global warming and this can be accomplished, in part, by the use of natural light to provide illumination in buildings. Demand for artificial lighting and the availability of daylight often correspond, so savings can be significant. To assess the performance of several innovative daylighting devices and to develop improved models for more established technology, quantitative measurement of output was necessary. This was achieved by the development of simply constructed photometric integrators which were calibrated by the innovative use of daylight as a source of illuminance. These devices were found to be consistent and accurate in measuring the luminous flux from a number of devices and in a number of locations. The novel light rod was assessed as a core daylighting technology and found to transmit light with high efficiency at aspect ratios of up to 40. It was found to have higher transmittance than the light pipe and with a considerably smaller diameter, could be used in space-restricted applications. Light rods were bent by infra-red heating and found to lose minimal transmittance. The light rod emitter was modified to give a variety of types of light distribution, including side emission and the results were visually and quantitatively assessed. Energy saving capacity was assessed and a model of performance developed for the first time. The long-term measurement of light pipe performance and measurement of length and diameter effects led to several improved models of performance for European latitudes. Several means of improving yield were investigated, including novel cone concentrators, laser cut panels and innovative high-efficiency reflective films. The concentrators and films were found to give significantly higher output than a standard light pipe, increasing energy savings and associated benefits for the user.

No description available.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed Dec. 4, 2007). PDF text: xvi, 266 p. : ill. ; 12 Mb. UMI publication number: AAT 3271934. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (doctoral)--Columbia University. / Vita. Reproduction of original from Harvard Law School Library. Includes bibliographical references.

Thesis (M.F.A.)--West Virginia University, 2005. / Title from document title page. Document formatted into pages; contains iv, 86 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 22-23).

Thesis (Ph. D.)--University of Texas at El Paso, 2009. / Title from title screen. Vita. CD-ROM. Includes bibliographical references. Also available online.

Thesis (M.F.A.)--University of Wisconsin--Madison, 1984. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.