HTRI (Heat Transfer Research, Inc.) is a global leader in process heat transfer technology, primarily known for its Xchanger Suite
Ensure you use accurate grid properties for condensing or boiling mixtures. Inaccurate phase envelopes lead to failed designs.
The (e.g., shell-and-tube, plate, air-cooled) The fluids involved (e.g., steam, oil, water)
At high velocities, the entering fluid can erode tubes. Top designs incorporate impingement plates or rods and ensure the ρv2rho v squared
Use up to 90% of your allowable pressure drop budget. Leaving too much margin results in an oversized, expensive unit. 4. Resolve HTRI Vibration Warnings
Applying a reasonable design margin ensures the exchanger operates effectively throughout its full run cycle, even as fouling builds up over time. Design Manual : The HTRI Design Manual
Maintain a baffle cut between 20% and 35% of the shell diameter.
, eliminating the need for external software to define stream properties. Extensive Visualization Tools
Increase tube passes to lift tube-side velocity and boost the heat transfer coefficient.
Keep liquid velocities above 0.6 m/s (2 ft/s) to prevent deposition fouling.
Fouling acts as an insulating layer, degrading heat exchanger performance over time. Standard TEMA fouling factors are often conservative guidelines; true optimization requires specific process matching. Fluid Type Typical Fouling Factor ( HTRI Design Strategy Demineralized Water High velocity, standard materials Light Hydrocarbons Monitor skin temperatures Heavy Crude Oil Use wider square pitch, high margin Finned tubes, frequent cleaning access Design Margin vs. Overdesign
The flagship module for rating and designing shell-and-tube heat exchangers, including TEMA types.
HTRI excels at identifying why an existing heat exchanger is not performing to specs. 4. Key Takeaways for "HTRI Heat Exchanger Design Top"
values meet TEMA limits for inlet and outlet nozzles to prevent erosion.