A shell-and-tube exchanger places one fluid in a bundle of tubes and the other in the surrounding shell. Baffles direct shell-side flow across the tubes. Ohm Engineers manufactures this configuration as the primary heat-exchanger type, including units with shell expansion joints photographed in our Vadodara shop.
Design sequence
- Thermal rating from process data (duty, LMTD, estimated U, area).
- Mechanical design of shell, channels, tubesheets, flanges to the named code.
- TEMA type letters and class on the GA.
- Nozzles, supports, nameplate, and ITP.
Applications by duty type
| Duty | Common TEMA tendency | Notes for RFQ |
|---|---|---|
| Liquid–liquid heating/cooling | BEM or AEM | Fouling side gets removable channel if mechanical cleaning is planned |
| Steam heater / condenser | BEU or NEN | Check condensate subcooling and non-condensable vent |
| Reboiler / vaporiser | AKT or kettle (K) | Shell level, weir height, and vapour disengagement are process items |
| High ΔT hydrocarbon | AES or AET floating head | Fixed tubesheet only if expansion is absorbed elsewhere |
What leaves our Vadodara shop
Shell, channels, tubesheets, tube bundle, baffles, and supports fabricated and assembled per approved drawing. Hydrotest, documentation, and dispatch packing per ITP. Thermal rating is either client-supplied or developed from the process data you attach — we do not publish guaranteed U-values without a named case.
Applications
Heating, cooling, condensing, and heat recovery in chemical, pharmaceutical, oil & gas, food, and dairy plants. Start on the heat exchangers product page for scope, gallery photos, and the RFQ checklist.
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