Calculations for the process selection of heat exchange equipment
Thread Content
These days, many design institutes for heat exchanger equipment or project owners only provide the process data sheets; it is up to the equipment manufacturers to carry out the selection calculations and structural strength assessments. How do equipment manufacturers proceed with the selection of equipment – manually or using software? Have you used the HTRI software for the selection calculations of shell-and-tube heat exchangers? Could you help select a model for this reboiler? It’s too troublesome to do the calculations manually. Thank you. There’s gratitude.
Isn’t it clearly stated in the process parameter table? The heat exchanger is of the fixed-tube-sheet type; generally, the selection is made by the design institute, not by the equipment manufacturer
HTRI is software for process calculations; does the poster need to perform process calculations?
The design institute no longer selects the equipment; instead, it requires the equipment suppliers to do that on their own, and they also have to provide process calculation documents. This puts a lot of pressure on the manufacturers: L
Yes, process calculations are required. Thank you
The design institute is now leaving this task to the equipment supplier to handle, huh?:L
It’s troublesome to input property data for materials with phase transitions
Manufacturing plants cannot carry out process calculations; design institutes have specialized software for such calculations. The values obtained from process calculations need to be supplemented with empirical values; if only the calculated parameters are used, the heat exchange equipment designed will definitely not be functional.
This model is indeed being implemented now; the design institutes no longer allow choices regarding the process parameters, and instead simply provide the process data to the equipment manufacturers. These manufacturers must not only carry out process calculations but also conduct strength analyses, and they are responsible for the equipment they supply – it must meet both strength requirements and process requirements.
I feel the same. Competition among manufacturers is very fierce nowadays. It’s better if there is a design institute, as that way more parameters are available. Some users don’t turn to design firms and instead let the manufacturing factory make the choice. Manufacturing plants these days are getting more and more advanced. If there is a phase change, it’s probably difficult to calculate using HTRI; I haven’t tried it.