I have a titanium tube bundle which has been in service in a cooling water heat exchanger for the past 6 years. Process side contains LPG service with several ppm of chlorides. Tube side contains seawater. The exchanger is a trim condenser. Process temperature and pressure is ~55C and 1950 kPag...
I am very confused. It seems that there can be many different definition for the area for crossflow within the shell of a HX. What should be the more representative intepretion for the flow area under cross flow. Currently, I have always assumed it to be Ac = (Shell_Dia * (Tube_pitch -...
i have a vertical shell and tube HX with a hot oil heating medium flowing on the shell side downwards. The HX was quite poorly designed, with baffles cuts of <10% and relatively small baffle spacing. My suspicion is that the shell side is not properly filled with the heating medium during...
have anyone come across the phenomenon of a 'cold spot' within a enothermic multitubular non-isothermal reactor. The idea is that the temperatures within the reactor drops to a very low temperature in the front section of the reactor, somewhat like the reversible of the hot spot of an exothermic...
Hi all,
I have a multitubular catalytic reactor where an endothermic reaction is taking place on the tube side and a heating oil is flowing cocurrently in the shell side of the reactor.
Recently, I have seen a suspected reduced heat transfer coefficient which lead to a significant temperature...
I have a catalytic fixed bed reactor with approximately 2400 tubes. There are several thermowells in the tubes of the reactor which measures the temperature along the bed. The question is, How i can ensure that the temperature measured by these thermocouples representative of the rest of the...
When considering the operation of a shell and tube heat exchanger, where a heating medium (hot oil) flows in the shell side of the exchanger, is it necessary that the pipings to the inlet and outlet to the HE be such that the outlet piping rises to a level higher than that of the inlet. I...
