Direct Measurement of Heat Transfer Rates and Coefficients in Freezing Processes by the Use of Heat Flux Sensors[J] . A. Amarante,J.-L. Lanoisellé,A. Ramirez.Chemical Engineering Research and Design . 2003 (9)Amarante, A.; Lanoiselle, J.L.; Ramirez, A. (2003). Direct measurement of ...
During this refrigeration process, the center temperature distribution of the sample was measured at 30-s intervals, and the measurement was repeated three times. Some physical and thermal properties are L=0.01 m, l=0.05 m, X=0.04 m, k=0.2367 W/m °C, a=9.88×10−8 m2/s, and h=...
29,30,31. While the development of evanescent wave-based devices typically requires macroscale surfaces separated by a nanosize vacuum gap, experimental research on near-field radiative heat transfer between macroscale surfaces has mainly focused on relatively large, microsize separation gaps at cryogenic...
properties on irradiation are proportional to the thickness of the coating, is applied to the surface and is then exposed to radiation and to the convecting liquid, the change in the amount of radiation transmitted or reflected from the coating giving an indication of the rate of heat transfer...
number.dEffective temperatures of membranes as a function of cavity photon number. Solid curves are the theoretical calculations and the dashed lines represent the reservoirs’ temperatures. Each data point is an average over a measurement period of 50 s and the error bars are the standard ...
关键词:液压系统;热;对流换热系数 中图分类号:THl37文献标志码:B 文章编号2016)04啪14旬7 0f Measurementand MethodsConvective Computation HeatTransferCoemeient WANG Yan,CHENJun_jie of Scienceand (School T耻8portation En舀neeling,BeihaIlguniVers畸,Beijing100191) of Abstract:Oil risein ontheratesheat...
for friction and heat transfer in the canonical case of steady, turbulent pipe flow with smooth, solid walls and a small temperature difference [20]. For turbulent flows with more complicated boundary properties and geometries establishing the friction and heat transfer rates has proved more ...
(ID) channel at mass fluxG = 70–170 kg m−2s−1was studied during the 62ndESA Parabolic Flight Campaign. The employed test section was composed by two counter-current heat exchangers for quasi-local heat transfer coefficient measurement, separated by a borosilicate glass window ...
Heat transfer measurement techniques are based on the sensing of temperature, either on the surface or on the back side of the skin of a model. To date, the most accurate measurements of heat transfer have been obtained with heat transfer gauges that provide data at discrete points. Heat tran...
For most of the engineering applications, engineers are required to determine the rate of energy transfer for a proper system sizing. The term heat transfer frequently refers to the science in modeling the rates of energy be transferred from one to othersystem in the form of heat. It is well...