Htri Heat Exchanger Design Guide

“Ah, the killer,” Callahan murmured. “You don’t fix that, tubes will sing for a week, then snap like guitar strings.”

Results: 35% baffle cut dropped pressure drop to 65 kPa (good) but U fell to 235 (bad). 20% baffle cut? Pressure drop: 110 kPa—unsafe for the diesel pump. She needed a different geometry entirely. htri heat exchanger design

But a new warning blinked red: Vibration potential. Bundle natural frequency close to vortex shedding frequency. “Ah, the killer,” Callahan murmured

Elena sighed. “What if I change baffle cut from 25% to 35%?” That would reduce cross-flow velocity, lowering pressure drop but also reducing heat transfer. She ran the parametric study in HTRI’s built-in optimizer. Pressure drop: 110 kPa—unsafe for the diesel pump

She clicked . HTRI produced a 47-page document: performance curves, tube counts, nozzle schedules, even a 3D view of the baffle arrangement. Elena attached a note: “Design X-7712. Double-segmental baffles, 35% cut, 3 baffle spacings. Vibration safe. Recommend U-tube bundle variant for future cleaning.”