Browse by Subject "heat transfer"
Now showing items 18-24 of 24
(2013-05-24)This dissertation focuses on experimental studies of thermal transport between solid and liquid, especially between Pt(or CFx)-coated Si and water droplet, using an ultrafast pump-probe method, time-domain thermoreflectance ...
(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 1999-06)The transcritical cycle of carbon dioxide in air conditioning and heat pump systems needs the research on heat transfer and pressure loss of heat exchangers operating at supercritical pressures. This paper offers a ...
Non-Intrusive Extension of a Generalized Finite Element Method for Multiscale Problems to the Abaqus Analysis Platform (2011-05-25)Several classes of important engineering problems – in this case, problems exhibiting sharp thermal gradients – have solution features spanning multiple spatial scales of interest and, therefore, necessitate advanced hp ...
Numerical simulations of experimental results in a power unit to validate the energy output resulting from gas pressurizations on nanoparticles (2014-01-16)This thesis aims to interpret the first temperature measurements recorded by the research group in terms of heat release from pressurizations of specific nanoparticles of alloys by Hydrogen. The number of unknowns was an ...
(2010-11-08)This work represents ongoing efforts to study high-enthalpy carbon dioxide flows in anticipation of the upcoming Mars Science Laboratory (MSL) and future missions to the red planet. The work is motivated by observed anomalies ...
Prediction of Two-Phase Pressure Drop and Void Fraction in Microchannels Using Probabilistic Flow Regime Mapping (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2005-07)Probabilistic two-phase flow map pressure drop and void fraction models are developed for 6-port microchannels in order to provide a more accurate and common means of predicting void fraction and pressure drop. The models ...
(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2001-05)The purpose of this study was to observe refrigerant behavior in flattened copper tubes. A round, smooth tube with an internal diameter of 8.91 mm is taken as the base case. This tube is then successively flattened to ...