Vice president of engineering and assistant general manager, Astro Metallurgical Corp., Wooster, Ohio
Pages: 7 Published: Jan 1981
The versatility of titanium is all too frequently overlooked because process and mechanical designers fail to design processes and equipment with judicious use of material as a criterion.
Too often heat exchangers, first, are oversized and, second, use heavier-gage tubing and plate materials than required.
Detaclad material is used in vessels when solid titanium would be appropriate and less expensive. In turn, solid titanium is sometimes specified when conditions warrant a less-expensive loose linear construction.
Proper use of reinforcing rings is too often disregarded in vessel design. The extra material costs thus incurred can result in other less desirable materials being substituted for titanium.
Proper heat exchanger, reactor, and column design can be accomplished by using commonly available design criteria and common sense.
The heat-exchanger surface area can and should be optimally designed. Similarly, reactors and various mass transfer columns can and should be designed to minimize wall thickness or minimal use of titanium while providing the required contact time and suitable length/diameter ratios.
Perhaps the most important consideration is the appropriate use of titanium in energy conservation. Many titanium heaters and coolers can be replaced by all-titanium inter-changers with almost amazing payouts and long-term dollar and energy savings.
titanium, design, code, corrosion allowance, arbitrary, fouling factor, Detaclad, loose liner, length/diameter, radiography, energy, industrial applications
Paper ID: STP28053S