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pro vyhledávání: '"Robert F. Richards"'
Autor:
Robert F. Richards
Publikováno v:
Proceeding of 5-6th Thermal and Fluids Engineering Conference (TFEC).
Publikováno v:
International Journal of Mechanical Engineering Education. 47:246-274
A new approach to fabricate flexible and inexpensive experiments for undergraduate students to gain hands-on experience with engineering concepts has been developed. The approach is driven by desig...
Autor:
Muftah Elsahati, Robert F. Richards
Publikováno v:
International Journal of Heat and Mass Transfer. 112:171-184
Nanoparticle packed beds are of interest because of their extremely low thermal conductivities. However, measurements for nanoparticle packed beds exposed to humid air have shown anomalously high thermal conductivity. This work examines the cause for
Publikováno v:
International Communications in Heat and Mass Transfer. 71:96-100
We report here thermal conductivity measurements of packed beds of nanoparticles both under vacuum and at ambient pressure and compare those measurements to theoretical predictions. The thermal conductivity measurements of the nanoparticle beds under
Autor:
Robert F. Richards, Muftah Elsahati
Publikováno v:
Volume 2: Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing.
Nanoparticle packed beds are of interest because of their extremely low thermal conductivities. However, thermal nanoparticle packed beds exposed to ambient air show unusual increases in conductivity. The causes for that increase in conductivity are
Publikováno v:
Volume 2: Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing.
Nanoparticle-based materials have demonstrated extremely low thermal conductivities, a property that has made them attractive candidates in a variety of macroscale and microscale applications. Understanding the thermal transport between nanoparticles
Publikováno v:
Applied Physics Letters. 114:183104
The ability to actively control thermal transport rates across interfaces or through materials would enable a number of advanced thermal management strategies. We demonstrate an approach to produce a composite material system with controllable therma
Publikováno v:
Sensors and Actuators A: Physical. 195:7-20
The performance of thermal phase-change actuators is strongly affected by the design of their heater/evaporators. The use of microchannels to control the liquid working fluid via capillary forces promises one approach to optimize the operation of hea
Publikováno v:
Microsystem Technologies. 18:693-701
The thermodynamic cycle of a resonant, MEMS-based, micro heat engine is characterized. The micro heat engine is an external combustion engine made of a cavity encapsulated between two membranes. The cavity is filled with saturated liquid–vapor mixt
Publikováno v:
Journal of Microelectromechanical Systems. 20:1287-1297
A microelectromechanical-systems-based phase change actuator has been developed and tested for high-speed mechanical power output and force generation. This actuator is well suited for a variety of advanced devices like tactile displays or micro flui