High Heat-transfer Titanium Sheet-HEET®- for Heat Exchangers

A plate-type heat exchanger (PHE) that uses seawater as a cooling/heating medium is widely employed by chemical plants, power-generating facilities and large transport ships. Titanium is a common material for these heat exchangers, particularly for their primary members, including a heat exchanging plate and piping, thanks to its excellent corrosion resistance to seawater. Improving the heat-transfer performance of PHE enables the reduction in number and size of the plate used in PHE and thus enables the entire facility to be downsized. Kobe steel have developed a high heat-transfer titanium plateHEET®-which has a heat-transfer performance that is significantly improved by fine irregularities imparted on its surface. The surface area increased by the fine irregularities, along with the promoted nucleate boiling, has improved the heat-transfer and particularly increased the evaporative heat transfer by approximately 20% or more.