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Friday, December 22, 2017
11:00 AM - 1:00 PM Download Add to Google Calendar
  • Mechanical Engineering MS Thesis Defense by Mr. Md Mukit Hasan
  • Location: Textiles Building 101E
  • Contact: Mechanical Engineering Department
  • Description: Mechanical Engineering MS Thesis Defense by Mr. Md Mukit Hasan DATE: December 22, 2017 TIME: 11am-1pm LOCATION: Textile Building, Room 101E TOPIC: Tidal Turbine Array Optimization in Muskeget Channel, MA Using a Continuous Genetic Algorithm ABSTRACT: Tidal in-stream energy conversion (TISEC) farms provide a highly predictable and dependable source of energy. Given the economic and social incentives to migrate towards renewable energy sources there has been significant interest in the technology. Economic viability depends in part on optimal planning of the layout of the turbines within the farm. The layout can be treated as an optimization problem where the best design is the one which generates maximum power. This can be achieved by minimizing negative interactions between the turbines as well as exploiting potential positive interactions. This thesis applies a global optimization method based on the continuous genetic algorithm (CGA) to two distinct applications in TISEC farm layout design. In the first application, power extraction is maximized in an idealized channel of constant depth. Flow through the channel is represented by steady solutions of the shallow water equations computed with the Finite Volume Community Ocean Model (FVCOM). Momentum extraction by the turbines is modeled in FVCOM using Linear Momentum Actuator Disk Theory (LMADT). The cost function for a given design is represented by the average of the flood and ebb power generation. Two distinct optimization problems are considered for the idealized channel. In the first case, the design space is constrained to layouts on a regular grid in separate configurations: staggered and non-staggered. For this case, the design space is spanned by two variables: the lateral and longitudinal turbine spacing. In the second case, the design space is unconstrained and allows arbitrary layouts. In this approach, the dimension of the design space increases to 2N where N is the number of turbines. Numerical experiments found that at low levels of extraction where the nameplate capacity of the array is on the order of 10% of the natural tidal kinetic energy flux through the idealized channel, the unconstrained design provides only 0.3% improvement over the optimal gridded design. At higher levels of extraction where nameplate capacity approaches 50% of the tidal kinetic energy flux in the channel, positive interactions between the turbines were found to provide 3% benefit over both staggered and non-staggered regular arrays. This implies that, at reduced extraction levels, turbine interactions are difficult to exploit and constrained designs are advisable due to their significantly lower computing requirements and potentially lower installation cost. In the second application of CGA, the method was applied to the preliminary design of a pilot scale (5 MW) TISEC array in Muskeget Channel, MA. For this case, interactions between the turbines were not considered. Turbines were constrained to lie on the vertices of a fixed grid overlying the entire channel. The flow field was represented by a spatial distribution of vertically-averaged annual mean tidal power density. This database was derived from the Massachusetts Tidal Model (MTM). The cost function for a given design consisted of total power density interpolated from the database at the turbine locations. For the optimal design, the annual mean energy production (AEP) of the array was estimated following guidelines established by the National Renewable Energy Lab (NREL). Using this approach, the AEP of the optimal layout of the pilot array was 12.26 GWh. The approaches considered within this work are readily applicable to the optimization of tidal power at other sites and are capable of including additional constraints such as exclusions due to navigation or essential habitat. ADVISOR: Dr. Geoffrey W. Cowles, Associate Professor, SMAST / Department of Fisheries Oceanography COMMITTEE MEMBERS: Dr. Raymond N. Laoulache, Professor, Department of Mechanical Engineering Dr. Miles A. Sundermeyer, Professor, SMAST, Department of Estuarine and Ocean Sciences Open to the public. All MNE students are encouraged to attend. For more information, please contact Dr. Geoffrey W. Cowles (gcowles@umassd.edu, 508-910-6397). Thank you, Sue Cunha, Administrative Assistant Mechanical Engineering Department 508-999-8492 scunha@umassd.edu
  • Topical Areas: Faculty, General Public, Students, Students, Graduate, Students, Undergraduate, University Community, College of Engineering, Mechanical Engineering, Lectures and Seminars
12:00 PM - 1:30 PM Download Add to Google Calendar
  • Drop-in Study Abroad Advising
  • Location: > See description for location
  • Contact: International Programs Office
  • Description: Have a quick question for a study abroad advisor? Drop by the IPO (LARTS 016) Monday through Friday Noon-1:30. Students will be seen on a first-come, first-served basis.
  • Topical Areas: Faculty, Staff and Administrators, Students, Study Abroad
«  11/19 - 1/29  » Download Add to Google Calendar
  • Black Spaces Matter: Exploring the Aesthetics and Architectonics of an Abolitionist Neighborhood
  • Location: Boston, MA
  • Cost: NA
  • Contact: Art History Department
  • Description: NOVEMBER 19 - JANUARY 29 MCCORMICK GALLERY BOSTON ARCHITECTURAL COLLEGE 320 NEWBURY STREET BOSTON, MA 02115** This exhibit showcases the abolitionist neighborhood near the New Bedford Whaling National Historical Park. This neighborhood, which was the home of many African-Americans, white and black abolitionists, and former slaves, provides a lens through which we may study interracial aspects of American cities. Massachusetts abolished slavery in 1783, more than 80 years before the Thirteenth Amendment; however, federal law supporting slave owners superseded this law and there were cases of slaves being "reclaimed" from Massachusetts in the years that followed. A strong network of abolitionists, both black and white, gave New Bedford its claim to fame that no slave was ever forcibly "reclaimed" from it. New Bedford's architecture reflects a period of relative racial equality and tolerance in "the city that lit the world" during its whaling boom. This neighborhood includes a mixture of Gothic Revival, Federal, Greek Revival, and early Italianate homes, as well as modest cottages. Important historical figures, such as Fredrick Douglass and Lewis Temple, resided in these homes. In recent years we have seen a growing body of literature on race and architecture; however, this scholarship has focused mostly on the negative side of such built environments; lacking is an in-depth exploration of the form and function of interracial neighborhoods. This exhibit celebrates the aesthetics and architectonics of a neighborhood where many former slaves lived side-by-side with the rest of the population and engaged multiple aspects of the city's interracial architecture. Through this exhibit, local New Bedford experts along with students and faculty from UMass Dartmouth and the BAC will reveal a lesser-known progressive interracial neighborhood in the United States. Please join us on Friday, December 1, from 5:30-7:30 pm, for a special panel discussion and reception. Black Spaces Matter is supported by a Creative Economy Fund from the Ofice of the UMass President, Perkins + Will Associates, University of Massachusetts Dartmouth, Boston Architectural College (BAC), New Bedford Historical Society, Rotch Jones Duff House and Garden Museum, and Spinner Publications. Lead curator: Pamela Karimi | Architectural renderings, model production, and maps: Pedram Karimi | Film, animation, and digital curation: Don Burton | Artistic representations: Michael Swartz | Advertisement and Graphic Design: Michael Swartz | Digital stations: Michael Swartz, Don Burton, Ben Guan-Kennedy | Production Manager: Jennifer McGrory| Consultant: Lee Blake | Curatorial Assistance: Students from UMass Dartmouth and the BAC. **If traveling on public transportation, take the Green line to Hynes Convention Center. The BAC is a one block walk from the station. If driving, the closest parking garage is the Hynes Auditorium Garage at 50 Dalton Street, Boston. For more information, see: http://the-bac.edu/experience-the-bac/news-and-events/events/black-spaces-matter
  • Link: http://the-bac.edu/experience-the-bac/news-and-events/events/black-spaces-matter
  • Topical Areas: Alumni, Faculty, General Public, Staff and Administrators, Students, Students, Graduate, Students, Undergraduate, University Community, University Marketing, Visual Arts, Black History 4 Seasons, Fredrick Douglass Unity House
«  12/12 - 1/31  » Download Add to Google Calendar
  • Tayo Heuser: Paper Constructs / Exhibition at University Art Gallery / New Bedford
  • Location: University Art Gallery
  • Cost: Free
  • Contact: University Art Gallery
  • Description: November 24, 2017 - January 31, 2018 Tayo Heuser: Paper Constructs Reception: AHA Night, Thursday Dec 14, 6:00 - 8:00 PM, Artist Talk 7:00 PM Closing reception: Wednesday, January 31st, 6-7.30 pm American, raised in Africa and Europe, Tayo Heuser's solo exhibition at UMass Dartmouth University Art Gallery in Downtown New Bedford presents a fascinating collection of abstracted works made from paper and on paper. Combining traditional techniques, multi-cultural influences, and contemporary artistic approaches, Ms. Heuser's reception will be part of AHA! Night on Thursday Dec 14, from 6 to 8 PM, with the Artist Talk at 7:00 PM. Heuser's large scale drawings on hand made paper are invitations into the universe of geometric forms, lines and color. Their surfaces seem to breathe quietly as they invite you into the artist's meditative and delicate drawing process described by Ms. Heuser as a way to gain insight into an unconscious world where colors and geometric forms emerge. These drawings aim to represent and communicate the reverberations and energies that are released during moments of profound solace and quietude. As a daughter of a diplomat, Tayo was surrounded by the visual language of African countries such as Tunisia, Libya, the Sudan and the Ivory Coast. This experience has brought an unusual sensibility to her work. She uses a labor-intensive paper sizing technique from the 1300's that was used for Tugras and other calligraphic texts during the Ottoman Empire. This process includes egg white, alum and burnishing with a small agate stone, resulting in a beautiful sheen whereby the ink sits on top of the paper creating a bit of multi-dimensionality. Tayo Heuser's recent body of work took this approach even further as she created sculptures from paper. Unlike traditional sculptures, these objects are very light, yet nonetheless carrying the memory of the wood used to create them. Wrapping handmade abaca paper around a wooden support, the artist carefully cuts the paper, releases the wooden form and finally, reattaches the seams. The large installation, Window, offers a sublime wall of windows on the gallery's largest wall, drawing the viewer's eyes and leading them to reflect on his or her own state of mind. Her new sculptures, shown here for the first time, were created during her paper-making residency in Women's Studio Workshop in NYC. This experience has freed her geometric forms to literally 'leave the frame' and to exist independently, while resting directly on the gallery wall. Similar technique appears in her series of shields, which takes handmade and hand tinted abaca paper and mounts them to hand molded acrylic, leaving the surface appearing like a wave in the ocean with the artwork unwilling to stay flat on the wall. The exhibition also includes a series of intimate drawings. The closing reception is planned for Wednesday, January 31st, 6-7.30 pm after the workshop for the UMass Dartmouth students sponsored by the Papermaking Club. University Art Gallery, UMass Dartmouth 715 Purchase St., New Bedford, MA 02740 www.facebook.com/UMassDartmouthGalleries Curated by Viera Levitt, UMass Dartmouth Gallery Director
  • Link: https://www.facebook.com/events/329426884198817/
  • Topical Areas: Alumni, Faculty, General Public, Staff and Administrators, Students, Students, Graduate, Students, Undergraduate, University Community, University Marketing, College of Visual and Performing Arts, Visual Design, Exhibits, Visual Arts, Lectures and Seminars

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