Tube Failure Prevention of Heat Exchanger Bhoyar Nilesh A.*, Prof. Tondre S. M.**, Prof. Dhakulkar K. T.***, Prof. Thakare V. K.*** *Student, ME (Thermal Engineering), DRGIT&R, Amravati, India **HOD, Mechanical Engineering Department, DRGIT&R, Amravati, India ***Asst. Professor, Mechanical Engineering Department, DRGIT&R, Amravati, India Online published on 24 October, 2019. Abstract This paper presents an overview on the remedial solution for the problem of tube failure in Heat Exchanger. In HOCL, a shell and tube heat exchanger is used in the production line of phenol. Hot oil at 328°C and 10.5 kg/cm2 is passing through the exchanger tubes. SS316 material is used in the tubes. 120 tubes at the top of the heat exchanger fails regularly and hence the plant have to be closed down for at least 2 days on each failure. The failure causes loss of hot oil (Therminol) which cost approximately Rs 850 per litre. About 1cm drop in oil level costs about 5 lakhs. In order to overcome this problem, the failure analysis of Heat Exchanger is done, from which the various reasons behind the failure are found and remedial solution is suggested for the problem. The remedial solution includes the use of Incoloy tubes instead of Stainless Steel tubes, use of Kettle type of Heat Exchanger with hot oil inlet at bottom and the use of DTS strip in the tube bundle. Top Keywords Failure, Heat, Exchanger, Prevention, Tube. Top |