...Chul-Hwa Song; Seok Cho; Hyung-Seok Kang The phenomena of direct contact condensation (DCC) of a steam jet submerged in a water pool occur because of the actuation of steam discharging devices in many industrial processes. There are practically two kinds of technical concerns to consider. The first...

... and enhance heat transfer, in particular, for the steam-air mixture vapor. In the present paper, steam DWC heat transfer characteristics in the presence of noncondensable gas (NCG) were investigated experimentally on superhydrophobic and hydrophobic surfaces including the wetting mode evolution...

...Michael H. Rausch; Alfred Leipertz; Andreas P. Fröba Our recent experimental studies indicate that nanostructured, chemically inhomogeneous surfaces are the origin of dropwise condensation of steam on ion implanted metals. Yet, the underlying microscopic mechanism governing this special...

...Ping Cheng; Guodong Wang; Xiaojun Quan Recent work on boiling of water and condensation of steam in single and parallel microchannels is reviewed in this paper. It is found that the amplitude and frequency of fluctuations of temperature and pressure during the unstable flow-boiling mode depend...

...Satesh Namasivayam; Adrian Briggs Experimental data are presented for forced-convection condensation of low-pressure steam on a set of single, integral-fin tubes. The five tubes had fin-root diameter of 12.7 mm and identical fin geometry except for fin spacing, which was varied from 0.25 mm to 2 mm...

...Takahiro Murase; Adrian Briggs; Hua Sheng Wang; John W. Rose Measurements for film condensation of steam, R113 and ethylene glycol on a horizontal wire-wrapped tube are reported. All measurements were made at near atmospheric vapor pressure and with coolant at around 20 ° C . Care was taken...

...Adrian Briggs; Sritharan Sabaratnam Data are reported for condensation of steam with and without the presence of air on three rows of integral-fin tubes situated in a bank of plain tubes. The data cover a wide range of vapor velocities and air concentrations. Unlike previously reported data...

...Xianchang Li; J. Leo Gaddis; Ting Wang Internal mist/steam blade cooling technology is proposed for the future generation of Advanced Turbine Systems (ATS). Fine water droplets about 5 μm were carried by steam through a slot jet onto a concave heated surface in a confined channel to simulate inner...

...X. Li, Research Assistant; J. L. Gaddis, Professor Mem. ASME; T. Wang, Professor Mem. ASME The addition of mist to a flow of steam or gas offers enhanced cooling for many applications, including cooling of gas turbine blades. The enhancement mechanisms include effects of mixing of mist with the gas...

...Minoru Takahashi; Arun Kumar Nayak; Shin-ichi Kitagawa; Hiroyuki Murakoso The condensation heat transfer of saturated steam to a hollow-cone spray of subcooled water was investigated experimentally and analytically. The spray water temperature rose more steeply in flow direction than those...

...A. K. Das; H. P. Kilty; P. J. Marto; G. B. Andeen; A. Kumar Hydrophobic coatings have been created through self-assembled monolayers (SAMs) on gold, copper, and copper-nickel alloy surfaces that enhance steam condensation through dropwise condensation. The monolayer is formed by chemisorption...