... sweep would require excessive bleed air from the engine and cause unbalanced flow in the turbomachinery. To avoid this, alternate sources of sweep must be considered, and their effects on dehumidification must be evaluated. This work conducts an experimental investigation of an MD module using product...

...-critical temperature. The experimental setup consists of a high temperature and pressure sCO 2 heat transfer loop and flow testing facility. Recently, researched sCO 2 heat exchangers can have tubes oriented at different angles such as 45 deg or 90 deg to horizontal. For optimized design of efficient...

... at the optimum temperature range. Here, the effects of three distinct (natural convection, forced convection, and tab cooling) methodology were experimentally compared at both the cell and module levels (six serial 7.5 Ah Kokam pouch cells, 1P6S) for thermal management of lithium-ion cells. The experiments were...

... limited growth due to conduction through the droplet bulk. Fig. 8 Model prediction of individual droplet growth rates averaged for 12 individual droplets. ( a ) The experimentally measured droplet diameters as a function of time (○) are compared to the individual droplet growth model (solid curve...

...Sebastian Spring; Yunfei Xing; Bernhard Weigand A combined experimental and numerical investigation of the heat transfer characteristics within arrays of impinging jets with rib-roughened surfaces is presented. Two configurations are considered: One with an inline arrangement of jets and ribs...

... behavior of these new enhanced surfaces, which present high heat transfer area per unit of volume at the expense of high pressure drop. The paper presents the experimental heat transfer and pressure drop measurements relative to air flowing in forced convection through four different aluminum foams, when...

...T. V. V. Sudhakar; Arun Shori; C. Balaji; S. P. Venkateshan This paper reports the results of experimental and numerical investigations of optimal heat distribution among the protruding heat sources under laminar conjugate mixed convection heat transfer in a vertical duct. A printed circuit board...

...Charles W. Booten; John K. Eaton The inverse discrete Green’s function (IDGF) is a heat transfer coefficient that is valid for arbitrarily complex thermal boundary conditions. It was measured using a rapid experimentation technique in a generic serpentine turbine-blade cooling passage with rib...

...Ken I. Salas; Anthony M. Waas Convective heat transfer in aluminum metal foam sandwich panels is investigated with potential applications to actively cooled thermal protection systems in hypersonic and re-entry vehicles. The size effects of the metal foam core are experimentally investigated...

...Wilson Terrell, Jr.; Ty A. Newell Background . An experimental study of buoyancy driven convection heat transfer in an open cavity was conducted. Method of Approach . Test cavities were constructed with calorimeter plates bonded to Styrofoam insulation. The inside of the cavities was heated...

... objective of this experimental study is to quantify and compare the heat transfer enhancement of carbon foam and aluminum fins. The study measures the heat transfer rate and pressure drop from a heated vertical pipe, with and without porous medium, in forced convection. The largest increase in Nusselt...

... , “ Experimental Investigation on Condensation Heat Transfer and Pressure Drop of New HFC Refrigerants (R134a, R125, R32, R410A, R236ea) in a Horizontal Smooth Tube (Etude Experimentale Sur Le Transfert De Chaleur Lors De La Condensation Et Sur La Chute De Pression Des Nouveaux Frigorigenes HFC (R134a, R125, R32...

...Stephen E. Turner; Yutaka Asako; Mohammad Faghri This paper presents an experimental investigation of convective heat transfer for laminar gas flow through a microchannel. A test stand was set up to impose thermal boundary conditions of constant temperature gradient along the microchannel length...

..., Part I: Experimental Investigation ,” ASME J. Heat Transfer 0022-1481 , 102 , pp. 445 – 450 . Fujie , K. , Nakayama , W. , Kuwahara , H. , and Kakizaki , K. , 1977 , “ Heat Transfer Wall for Boiling Liquids ,” U.S. Patent 4,060,125 . Arshad , J. , and Thome , J...

...Stephen E. Turner; Lok C. Lam; Mohammad Faghri; Otto J. Gregory This paper presents an experimental investigation of laminar gas flow through microchannels. The independent variables: relative surface roughness, Knudsen number and Mach number were systematically varied to determine their influence...

...Hajime Nakamura; Tamotsu Igarashi Forced convection heat transfer from a low-profile block placed in a rectangular duct, simulating heat transfer in a compact packaged electronic device, is investigated experimentally. Local heat transfer from the block is measured by an infrared camera. A general...

..., it can be avoided to some extent by proper use. Calibrations can be done in the same direction and from about the same initial temperature as in the application, starting below or above the color play temperature range. For example, in the transient method some experimenters expose a low temperature...

... kW/m 2 ) and temperatures (330–430°C), the flow in the 6.2 mm ID tube was fully turbulent. The fluid was distilled water and up to 9 wt % oxygen. The water/oxygen mixture and the above experimental conditions are relevant to supercritical water oxidation systems (SCWO). At subcritical temperatures...

... higher with the decrease in the diameter. CHF correlation for the latter increasing regime was given in non-dimensional form against average outlet subcoolings based on the experimental data. The correlation can describe not only the CHFs obtained in this work at the outlet pressure of 800 kPa but also...

...Zhen-Hua Liu; Tie-Feng Tong; Yu-Hao Qiu An experimental investigation was carried out for predicting the critical heat flux (CHF) of steady boiling for a round subcooled water jet impingement on the flat stagnation zone. The experimental data were measured in a steady nucleate boiling state. Three...