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Civil and Environmental Engineering

University of Massachusetts Amherst

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Articles 541 - 545 of 545

Full-Text Articles in Engineering

Preozonation And In-Line Direct Filtration: Impacts On The Bacterial Regrowth Potential, Rebecca L. Mcenroe Feb 1993

Preozonation And In-Line Direct Filtration: Impacts On The Bacterial Regrowth Potential, Rebecca L. Mcenroe

Environmental & Water Resources Engineering Masters Projects

No abstract provided.

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The Effects Of Ozone And Peroxide On In-Line Filtration: Filter Performance And Manganese Removal, Nagaraju K. Vinod May 1992

The Effects Of Ozone And Peroxide On In-Line Filtration: Filter Performance And Manganese Removal, Nagaraju K. Vinod

Environmental & Water Resources Engineering Masters Projects

The University of Massachusetts, Amherst and the South Central Connecticut Regional Water Authority have been conducting pilot studies at the West River Treatment Plant CWRTP) since 1989 to investigate the use of ozone and peroxone in in-line fIltration. Many studies in the past, both pilot and full-scale, have shown improved perfonnance on inclusion of pre-ozonation in to the treatment scheme. Peroxone has been found to be more effective than ozone in oxidizing taste and odor compounds. This study investigated the effects of the use of ozone and peroxone on fIlter perfonnance, and particle and manganese removals. Pilot run experiments were …

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Use Of The Microindentation Technique For Determining Interfacial Fracture Energy, Thomas J. Lardner, L. Rosenfeld, J. E. Ritter, M. R. Lin Jan 1990

Use Of The Microindentation Technique For Determining Interfacial Fracture Energy, Thomas J. Lardner, L. Rosenfeld, J. E. Ritter, M. R. Lin

Thomas J. Lardner

The microindentation technique was used to determine the interfacial fracture energy of epoxy coatings on soda‐lime glass substrates. An analytical model was developed for calculating fracture energy based on indenter load versus debond crack size measurements. Finite‐element analysis was used to determine the relative amounts of opening and shear loadings at the debond crack tip. The calculated fracture energies are compared to values determined by the double‐cantilever‐beam technique and the four‐point flexure‐beam technique.

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Optimizing Output Power Of A Variable Speed Synchronous Generator By Controlling Excitation And Load Restistance, Michael George Edds Jan 1980

Optimizing Output Power Of A Variable Speed Synchronous Generator By Controlling Excitation And Load Restistance, Michael George Edds

Wind Energy Center Masters Theses Collection

Since 1973 the University of Massachusetts Energy Alternatives Program has been involved in a project, the UMASS Wind Furnace (WF-1) which is directed at supplying the heating needs of households in northern climates. This project had as its inception an attempt to design and build fiberglass rotor blades. Since then the combined efforts of students and faculty from many engineering departments have produced a facility whose purpose is the study of wind and solar energy for useful purposes. The current Wind Furnace Model (WF-1) utilized a wind-driven electromechanical system to generate electrical energy. This energy is then dissipated through resistance …

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Design And Analysis Of A Hub For A 50-Horsepower, Three Bladed Wind Energy Conversion System, Louis Joseph Manfredi Jan 1978

Design And Analysis Of A Hub For A 50-Horsepower, Three Bladed Wind Energy Conversion System, Louis Joseph Manfredi

Wind Energy Center Masters Theses Collection

No abstract provided.

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