No description available.

This research proposes a computer evaluation model that assists architects and designers in producing buildings with low energy consumption. The model is based on computer-designer interaction. Here, the designer suggests a range of design alternatives, and, in turn, the computer evaluation model generates a matrix of design solutions and performs various environmental simulations. The performances of the various design solutions then analyzed by a statistical analysis package that derives relationships. These relationships explain the impact that the different building components have on energy consumption. The relationships are represented in the form of statistical relations and interactive data charts. The evaluation model was tested and used to support new ventilation strategies for the Beliveau House in Blacksburg, Virginia. The designer of this house implemented strategies for integrating solar radiation, thermal mass, thermal insulation, and air ventilation to conserve energy. A field study and computer simulation were conducted to monitor the actual performance of the house and to validate the evaluation model results. Based on the evaluation model results, this research suggests new direct and indirect ventilation control strategies to reduce cooling energy and to improve comfort. The research also suggests general design guidelines to improve the energy performance of buildings and to enhance thermal comfort. These design guidelines are based on a holistic view of integrating the building components that has significant impact on buildings thermal performance. / Ph. D.

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

This thesis presents a model which estimates energy and cost savings that can be realized by implementing Energy Conservation Measures (ECMs) at mechanically aerated wastewater treatment plants (WWTPs) in southeast Florida. Historical plant monitoring data is used to estimate savings achieved by implementing innovative aeration technologies which include : 1) Fine Bubble DIffusers ; 2) Single-Stage Turbo Blowers ; 3) Automatic Dissolved Oxygen (DO) Control. Key assumptions for modeling performance of each technology are researched and discussed, such as trends in the future cost of electricity, efficiency of blowers, and practical average DO levels for each scenario. Capital cost estimates and operation maintenance (O&M) costs are estimated to complete life-cycle cost and payback analyses. The benefits are quantified on an individual and cumulative basis, to identify which technologies are cost-beneficial. The results demonstrate that levels of payback of 20 years or less are available at the three WWTPs studied. / by Eric Stanley. / Thesis (M.S.C.S.)--Florida Atlantic University, 2012. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2012. Mode of access: World Wide Web.

Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Includes bibliographical references (p. 157-159). / Daylighting is a powerful design element which can have a dramatic impact on people's perception of space, physical and psychological well-being as well as a building's annual and daily energy requirements. Understanding of the way daylight can penetrate a space , dramatize materials, create shadows and patterns, and is reflected and diffused gives an appreciation for light energy as a natural force. Historic precedents, and the response of contemporary architecture to the problems and possibilities of daylighting demonstrate the changes in values, and attitudes about the role of natural light and ventilation as they have been constructed in the landscape over a period of centuries. Three areas are investigated in considering the role of natural daylighting in the context of adaptive reuse. One is the historical evolution of atriums, their use as climate conditioners, as building form generators and as receptors of daylight. The second area is a qualitative and quantitative study of daylight. Topics explored are glazing location, diffusion and reflection elements, and psychological effects, impact on annual energy consumption and physical modeling. The third area of study is the development of a generic atrium piece which is the principal form and organizational generator of a design proposal for the reuse of a typical early 20th century warehouse building. / by John Stephen Crowley. / M.Arch.

No description available.

A two year experiment demonstrated electrical energy savings through evaporator fan cycling in part of a full-sized refrigerated controlled atmosphere apple storage facility in Yakima, Washington. Room cooling demand and evaporator fan operation was controlled by the bulk fruit temperature. Refrigerant temperature was regulated by a computer controlled ramping sequence and a weighted average of three thermistors rather than a room thermostat. Evaporator fans remained off 60-65% of the time during periods of fan cycling operation. Seasonal average fan energy savings approached 50-55% when the product remained in storage for a typical length of time. Room environment conditions, product mass loss, and fruit quality were not compromised. Bulk fruit temperature was exceptionally stable as compared to fruit stored in non-fan cycled rooms controlled by traditional means. Less fan motor heat input in the fruit storage space also results in compressor energy savings. Total electrical energy savings were projected to an 18 room fruit storage facility implementing computer controlled evaporator fan cycling. Projected electrical energy savings achievable through evaporator fan cycling for the state of Washington were made based on reported apple storage capacity. / Graduation date: 1993

Thesis (M. S.)--Building Construction, Georgia Institute of Technology, 2009. / Committee Chair: Kathy Roper; Committee Member: Daniel Castro-Lacouture; Committee Member: Linda Thomas-Mobley. Part of the SMARTech Electronic Thesis and Dissertation Collection.

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

No description available.