Heat Exchanger World Magazine February 2025 | Page 52

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Corrosion
In the energy sector , where heat exchangers play a crucial role in power plants , digitalization is transforming maintenance practices .
About the author
Omari Hussein Sabuni is an experienced mechanical engineer at Kinyerezi Gas Power Plant , specializing in heat exchanger design , optimization , troubleshooting and providing practical solutions for various heat exchanger problems . He is skilled in analyzing thermal systems and developing innovative solutions to enhance heat transfer efficiency and adept at conducting feasibility studies , performing risk assessments , and ensuring compliance with industry standards .
Future trends The landscape of corrosion protection for heat exchangers is evolving , and future trends are shaped by a commitment to sustainability , technological innovation , and a proactive approach to maintenance . Emerging trends include the development of green corrosion inhibitors , the application of advanced electrochemical techniques , and the integration of digital technologies for real-time monitoring and predictive maintenance .
Green corrosion inhibitors As industries increasingly prioritize environmental sustainability , there is a notable shift towards the development of green corrosion inhibitors . These inhibitors are derived from renewable and natural sources , aiming to replace traditional chemical inhibitors with biodegradable and non-toxic alternatives . The emphasis on sustainability aligns with the global push for eco-friendly practices in industrial processes . A real-world example of this trend can be seen in the agriculture sector , where heat exchangers are employed in various processes , including crop drying and storage . Green corrosion inhibitors , derived from plant extracts or other environmentally benign sources , are gaining traction in these applications . These inhibitors not only provide effective corrosion protection but also contribute to the overall sustainability of agricultural operations .
Electrochemical techniques Advancements in electrochemical techniques are revolutionizing the monitoring and control of corrosion in heat exchangers . Techniques such as impressed current cathodic protection and electrochemical impedance spectroscopy offer real-time insights into the corrosion processes , enabling a proactive approach to corrosion management . These methods allow for precise control and adjustment of protective measures based on the evolving corrosion conditions .
In the maritime industry , where heat exchangers on ships are constantly exposed to corrosive seawater , electrochemical techniques play a crucial role . Impressed current cathodic protection systems are employed to safeguard critical components , such as heat exchanger tubes , by applying a controlled electrical current to counteract the corrosive effects of seawater . This approach not only extends the lifespan of the heat exchangers but also minimizes maintenance efforts and associated costs .
Digitalization and predictive maintenance The integration of digital technologies , including sensors and data analytics , represents a paradigm shift in corrosion management for heat exchangers . Realtime monitoring of corrosion rates and overall heat exchanger health allows for early detection of potential issues . Predictive maintenance strategies , informed by data collected from sensors , enable proactive interventions to address emerging corrosion threats , reducing downtime and extending the operational lifespan of heat exchangers . In the energy sector , where heat exchangers play a crucial role in power plants , digitalization is transforming maintenance practices . Sensors embedded in heat exchangers continuously monitor corrosion parameters , and data analytics algorithms predict potential failure points . This predictive maintenance approach allows for targeted interventions , preventing unplanned shutdowns and optimizing the overall efficiency of power generation facilities .
Conclusion The innovation in corrosion protection for heat exchangers involves a multidisciplinary approach , incorporating advancements in coatings , inhibitors , and materials . Future trends emphasize sustainability , smart technologies , and the integration of digital tools for enhanced corrosion control and prolonged heat exchanger operation .
52 Heat Exchanger World February 2025 www . heat-exchanger-world . com