The Product Pre-selector is a proprietary tool developed on the back of 250,000+ data points mined on all our insert geometries from our Thermodynamics Research Division. What it allows users to do is input their application specifics and their equipment dimensions and see which of our standard models would do the job required.

In the event that the selector comes up with zero standard models that fit the application, all the user has to do is get in touch with our Applications Engineers by writing to mail@conceptengg.com who will collaborate with them to design a bespoke model.

In the event that there are multiple models that can meet the application, the user must simply write in to the Application Engineers by writing to mail@conceptengg.com who will fine-tune the design and get a quote out along with ways to integrate into the user’s preferred design software platform.

The steps are outlined and divided into Part A and Part B.

For applications not covered in Part A and Part B please get in touch with our Applications Engineers by writing to mail@conceptengg.com.

Part A covers Air Cooled Heat Exchangers.

Part B covers Shell and Tube Heat Exchangers.

Part A: Air Cooled Heat Exchangers.

1. Arrive at your max possible airside coefficient by your own proprietary method or your inputs into HTRI or Aspentech EDR.
2. Once you’ve arrived at your max possible airside coefficient, multiply it by 1.2 to get the desired tubeside coefficient. It is better to keep the tubeside higher than the airside because then the airside becomes controlling and allows you to tweak fan operation and accounts for changes in ambient temp as well as fouling in the tubes.
3. Go to our Product Preselector section and input the tubeside coefficient desired and the pressure drop allowable along with various fluid properties and exchanger dimensions.
4. The result will tell you how many standard models can meet your performance requirements. And there are two possible scenarios.
   1. Standard Models meet performance required: In this case, please get in touch with the CEI Applications Engineering Team for fine-tuning this selection.
   2. Custom Designs are required to meet this application: In this case, please get in touch with the CEI Applications Engineering Team for designing a custom turbulator that meets your performance requirement.

Part B: Shell and Tube Heat Exchanger.

1. Decide which fluid goes on the shell side and which goes on the tube side.
2. Based on this decision, and the flow characteristics, determine which coefficient (shellside or tubeside) is greater.
3. If the tubeside coefficient is lower than the shellside coefficient than the addition of turbulators will greatly increase performance as the tubeside is controlling.
4. If the tubeside coefficient is greater than the shellside coefficient and there’s a fouling fluid in the tube, adding turbulators makes sense. Turbulators will increase the heat transfer coefficient back to pre-fouling levels and will also reduce the fouling within the tube.
5. If the tubeside coefficient is greater than the shellside coefficient and it’s a non-fouling fluid in the tube, do not attempt to put turbulators as increase in overall coefficient will not be substantial as shellside is controlling.
6. Go to our Turbulator Preselector and input the tubeside coefficient desired and the pressure drop allowable along with various fluid properties and exchanger dimensions.
7. The result will tell you how many standard models can meet your performance requirements. And there are two possible scenarios.
   3. Standard Models meet performance required: In this case, please get in touch with the CEI Applications Engineering Team for fine-tuning this selection.
   4. Custom Designs are required to meet this application: In this case, please get in touch with the CEI Applications Engineering Team for designing a custom turbulator that meets your performance requirement