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Klamath Falls, OR, United States

Oregon Institute of Technology, also known as Oregon Tech or OIT, is one of seven Universities in the Oregon University System, and the only public institute of technology in the Northwestern United States. Oregon Tech provides degree programs in engineering and health technologies, management, communications, psychology and applied science through hands-on learning. Oregon Tech has a full-service, residential campus in Klamath Falls, Oregon and an urban campus in Wilsonville, Oregon. The university also has sites in Salem, La Grande, and Seattle, as well as online degree offerings. Wikipedia.

Jones C.,Oregon Institute of Technology
Journal of Cleaner Production | Year: 2010

Studies indicate that while a variety of factors positively influence voluntary environmental management, regulatory pressures are among the most important. However, most research examines samples representing large manufacturers or single industries, essentially assuming a level of regulatory constraint. Using a sample of heterogeneous facilities, this study finds that facilities can be classified according to the level of regulatory constraint, and that group membership impacts the choice of environmental management strategy when assessed within a utility maximization framework. More extensively regulated facilities implement more individual environmental management practices, but participate in fewer formal voluntary environmental programs (VEPs), compared to other facilities. © 2010 Elsevier Ltd. All rights reserved.

Ekneligoda N.C.,Michigan Technological University | Ekneligoda N.C.,Oregon Institute of Technology | Weaver W.W.,Michigan Technological University
IEEE Transactions on Industrial Electronics | Year: 2014

DC power systems with multiple buses for redundancy are more reliable and provide reconfiguration options. A game-theoretic-based modeling approach for bus selection is proposed in this paper, which is based on local information of the player and does not require a centralized controller. The initial section provides the modeling and optimization of a single-input player. This modeling mainly follows on the players' local objectives and discrete choices of bus connections. Therefore, in this case, the controller obtains Nash equilibrium (NE) for the pure strategy game. Then, the approach is extended for the integration of global objectives with minimal communication. In addition, different objective priorities are integrated into the optimization routine. Next, the analysis is extended to multi-input player situations which are related to the class of mixed and continuous strategy games. This modeling is important, since the payoff matrix approach does not find an NE in all cases. Finally, the bus selection modeling is carried out by taking the system dynamics into account. This is important for the cases where the system has sudden load or source fluctuations. Experimental results are obtained, which validate the theory. © 1982-2012 IEEE.

Gude V.G.,Oregon Institute of Technology
Desalination and Water Treatment | Year: 2011

Energy consumption is a key factor which influences the freshwater production cost in reverse osmosis (RO) process. Energy recovery and reuse options have already been very well explored in the current desalination industry. Achieving minimum theoretical specific energy consumption for water recovery is not feasible due to effects of concentration polarization, membrane fouling and hydraulic resistance to permeate flow. Due to these limitations, energy recovery along with water recovery can be a better alternative to improve energy consumption and economics of the RO process both in small and large scale applications. This paper reviews currently available process configurations, operating strategies, and discusses potential pathways to recover and recycle energy and water to improve the performance of the RO process. © 2011 Desalination Publications. All rights reserved.

Gude V.G.,Oregon Institute of Technology | Nirmalakhandan N.,New Mexico State University | Deng S.,New Mexico State University | Maganti A.,03 B Street
Applied Energy | Year: 2012

A low temperature desalination process capable of producing 100L/d freshwater was designed to utilize solar energy harvested from flat plate solar collectors. Since solar insolation is intermittent, a thermal energy storage system was incorporated to run the desalination process round the clock. The requirements for solar collector area as well as thermal energy storage volume were estimated based on the variations in solar insolation. Results from this theoretical study confirm that thermal energy storage is a useful component of the system for conserving thermal energy to meet the energy demand when direct solar energy resource is not available. Thermodynamic advantages of the low temperature desalination using thermal energy storage, as well as energy and environmental emissions payback period of the system powered by flat plate solar collectors are presented. It has been determined that a solar collector area of 18m2 with a thermal energy storage volume of 3m3 is adequate to produce 100L/d of freshwater round the clock considering fluctuations in the weather conditions. An economic analysis on the desalination system with thermal energy storage is also presented. © 2011 Elsevier Ltd.

Jiru T.E.,Oregon Institute of Technology
Energy and Buildings | Year: 2014

This paper presents the energy savings over the minimum American Society of Heating Refrigeration and Air-Conditioning Engineers (ASHRAE) Standard 90.1-2010 requirements due to the combination of two or three HVAC energy conservation measures using EnergyPlus simulation software. Prototype commercial building models, which satisfy the requirements of ASHRAE Standard 90.1-2010 were used as base-cases. Five prototype commercial buildings, eight HVAC systems, and eight climate zones were considered. Four cases were studied for the combination: energy recovery ventilation (ERV) and demand control ventilation (DCV); ERV and Multiple-zone variable air volume (VAV) System Ventilation Optimization (VentOpt); ERV, DCV and VentOpt; and Single Zone VAV controls, and kitchen transfer air. Of the four cases studied, the integration of ERV and DCV, which was applied to primary school and standalone retail prototype buildings, provided a maximum savings of 1.93% and 8.10% respectively compared to the base-cases. © 2014 Elsevier B.V.

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