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Maintenance Strategy Selection for Condenser Subjected To Fouling


Ankit Kayasth , Maulana Azad National Institute of Technology, Bhopal; Dr. Alok Kumar, Maulana Azad National Institute of Technology, Bhopal


Pressurized Water Jetting, Chemical Cleaning, Maintenance, Fouling


Due to frequent use heat exchangers are subjected to fouling. Fouling is deposition of unwanted layers on the heat transfer surface. This unwanted deposition induces a resistance between heat transfer surface and fluid flowing. It results in reduction in heat transfer rate. Therefore it is necessary to remove these depositions by maintenance procedures. There are several maintenance methods to remove the depositions. The objective of this work to select a better maintenance strategy for a ethanol condenser. The condenser is cleaned by two methods- Pressurized water jetting and Chemical cleaning by alkaline treatment. Data was collected from preventive maintenance record of the condenser for ten weeks before overhauling was done for maintenance. Then after cleaning was done by both methods and operation parameters was collected for ten weeks after the maintenance for each method. From this data performance parameters were calculated and compared with each other. After calculations it was found that heat transfer rate after cleaning in case of pressurized air jetting was 11802.95021 W which is of 96.23% designed value (22000 W) whereas in case of chemical treatment it was 21171.122 W which is 87.11% of design value. Recovery in values of LMTD and overall heat transfer coefficient was greater in case of pressurized air jetting when compared to chemical treatment. Hence for the given ethanol condenser pressurized water jetting is more suitable than chemical treatment.

Other Details

Paper ID: IJSRDV7I21451
Published in: Volume : 7, Issue : 2
Publication Date: 01/05/2019
Page(s): 1805-1808

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