Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jacob Kephart"'
Autor:
Sastry Pamidi, Jacob Kephart, Jason D. Miller, Isaac Leonard, Peter Cheetham, Chul H. Kim, Juan C. Ordonez
Publikováno v:
2019 IEEE Electric Ship Technologies Symposium (ESTS).
The need for ship system level models for assessing the benefits of high temperature superconducting (HTS) technology is articulated. The development of ship designs with HTS power cables using Smart Ship Systems Design (S3D) showed the need for new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84b5f89bb564828ade97f07156864ae3
https://doi.org/10.1109/ests.2019.8847735
https://doi.org/10.1109/ests.2019.8847735
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-5
A three-dimensional finite-element method computational model has been developed for the terminations of a gaseous-helium-cooled superconducting power cable. The model combines turbulent flow physics coupled with heat transfer in fluids and solids an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2da4f2d149dd27fe5ed7379228da409f
https://doi.org/10.1109/tasc.2016.2526633
https://doi.org/10.1109/tasc.2016.2526633
Autor:
Jacob Kephart, Gerard F. Jones
Publikováno v:
Volume 1: Aerospace Heat Transfer; Computational Heat Transfer; Education; Environmental Heat Transfer; Fire and Combustion Systems; Gas Turbine Heat Transfer; Heat Transfer in Electronic Equipment; Heat Transfer in Energy Systems.
Constructal principles are used to investigate the optimization of material utilization in a metal matrix heat sink that maximizes the total heat transfer rate through the base of heat sink. This approach utilizes a two-dimensional geometry to examin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c47fe62457df62bc4a8b85887b2aaeb
https://doi.org/10.1115/ht2017-4950
https://doi.org/10.1115/ht2017-4950
Autor:
Jacob Kephart, Gerard F. Jones
Publikováno v:
Journal of Heat Transfer. 138
Optimal material utilization in metal-matrix heat sink is investigated using constructal design (CD) in combination with fin theory to develop a constructal tree of optimally shaped convective fins. The structure is developed through systematic growt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d646758365573313ca3723f0b3c8ad59
https://doi.org/10.1115/1.4033209
https://doi.org/10.1115/1.4033209
Publikováno v:
Nondestructive Testing and Evaluation. 22:83-92
We have developed an experiment to study the propagation of laboratory-synthesized fatigue cracks under various controlled conditions during Sonic IR inspection. The experiment provides for good repeatability in testing. The parameters of interest in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5baee6e995dbf464dccbc183622551b8
https://doi.org/10.1080/10589750701447672
https://doi.org/10.1080/10589750701447672
Autor:
Jacob Kephart, Gerard F. Jones
Publikováno v:
Volume 3: Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat Transfer in Electronic Equipment; Symposium in Honor of Professor Richard Goldstein; Symposium in Honor of Prof. Spalding; Symposium in Honor of Prof. Arthur E. Bergles.
This work focuses on an analytical approach to understand optimal material utilization in metal matrix heat exchangers. An objective of this work is to develop a bridge between a fully defined and discrete structure to that of a functionally graded p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08f1f7598f74b225cf87b4c5545a8362
https://doi.org/10.1115/ht2013-17384
https://doi.org/10.1115/ht2013-17384
Publikováno v:
2010 IEEE Sensors Applications Symposium (SAS).
Giant Magnetoresistance (GMR) sensors offer several advantages over other technologies for the development of general-purpose magnetometers. They are applicable for both AC and DC fields, are relatively sensitive, can be fabricated to measure over a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64581f25ddf4fb4859deba437680cf38
https://doi.org/10.1109/sas.2010.5439400
https://doi.org/10.1109/sas.2010.5439400
Publikováno v:
Thermosense XXVII.
Sonic IR is an emerging, thermal-based, nondestructive evaluation (NDE) technique. Typically a short burst of high power acoustical energy is injected into an object being studied and certain types of defects heat up and is detected using a thermal i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a73f0dba207efc51fb5941f4e0b5da6
https://doi.org/10.1117/12.604243
https://doi.org/10.1117/12.604243
Publikováno v:
AIP Conference Proceedings.
Structural defects such as cracks have recently been identifiable through a new nondestructive evaluation (NDE) technique know as sonic IR or thermosonics. However, these defects are depicted through thermal imagining system as localized “hot spots
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6343b331a1b18de830169c5f75158266
https://doi.org/10.1063/1.1916862
https://doi.org/10.1063/1.1916862
Publikováno v:
Heat Transfer, Volume 3.
Infrared (IR) thermography and, more recently, thermosonics have proven to be viable means of qualitative nondestructive evaluation (NDE). However, structural defects such as cracks observed through thermosonics can only be identified as “hot spots
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e80697c454c44e6378ac08499b54bfd7
https://doi.org/10.1115/imece2004-61161
https://doi.org/10.1115/imece2004-61161