... methods. 16 09 2010 02 06 2011 12 07 2011 impinging jet cooling film boiling CFD VOF heat transfer coefficient References Kreith , F. , Principles of Heat Transfer , International Textbook Company , Scranton, PA , 1965 , pp. 434 – 469 . Berenson , P. J...

...Božidar Liščić; Saša Singer; Hartmut Beitz For computer simulation of a quenching process, the fundamental prerequisite is to have the relevant heat transfer coefficient (HTC) calculated as function of workpiece’s surface temperature and time respectively. In order to calculate the HTC...

...Bowang Xiao; Gang Wang; Richard D. Sisson, Jr.; Yiming Rong Cooling rates of work pieces in heat treating processes heavily depend on the interfacial heat transfer coefficient (HTC) between work pieces and quenchants. Because the HTC plays an important role in the resulted distortion, residual...

... 15 mm and height 70 mm were used to determine the cooling rate intensities of nanofluids. Heat transfer coefficients were determined using Kobasko’s method. A dynamic contact angle analyzer was used to determine the contact angle of the droplet on the substrate. The addition of Al nanoparticles...

...Božidar Liščić; Saša Singer; Božo Smoljan A quench probe, based on the Temperature Gradient method was used to measure and record cooling curves when quenching real axially symmetric workpieces of any complex shape in liquid quenchants. Calculation of relevant heat transfer coefficients is based...

...Thomas Luebben; Michael Lohrmann; Soeren Segerberg; Peter Sommer During the past years high pressure gas quenching was a very actual subject at different conferences. There were a lot of lectures which used heat transfer coefficient as the most important parameter for the characterization of a gas...

... nanofluids of varying concentrations ranging from 0.01–4 % were used. The size of alumina particles was about 50 nm. The severity of quenching and heat transfer coefficients were estimated during quenching of copper probes. Heat transfer coefficients were estimated using a lumped heat capacitance model...

... and properties achieved will also be included in this review. 26 08 2008 03 11 2008 09 12 2008 quenching quench factor analysis heat transfer coefficient modeling References Croucher , T. , “ Quenching of Aluminum Alloys: What This Key Step Accomplishes ,” Heat Treating...

... of heat transfer coefficients are reviewed. An attempt is also made to highlight the importance of wetting kinetics of liquid media on quenching. 15 04 2008 14 11 2008 05 01 2009 heat transfer coefficient quench severity wetting References ASM Handbook , 10th ed., Vol. 4...

... from a heat treating shop. Heat transfer coefficients were estimated using HT-Mod, a recently released commercial computational code. Using the cooling curve temperature—time data, the temperature distribution within the probe and the corresponding residual stresses were calculated using ABAQUS...