»
»
Lng
About the author
Dr . Anal Chavan is currently working as Lead Utilities Technologist at Nigeria LNG as a Shell Secondee . She is a Process engineer professional with expertise in Utilities and Specialist in Water and Wastewater systems including Cooling water . She has > 15 years of experience at reputed organizations like Siemens and Shell . She is a holder of a number of research papers in reputed journals , international conferences and patents .
Experimental setup .
Planktonic Count ( TPC ) ( a bio-fouling indicator ). All parameters remained within specifications . Most important parameter in terms of TPC was found well within the specifications (< 104 cfu / ml ) ( Fig . 2 ).
Field trials and cost savings Building upon the success of the laboratory pilot trials , field trials were subsequently conducted and proved to be successful . Later , when heat exchangers were opened during the plant shut-down , they were found in good condition / reduced bio-fouling . This suggests that continuous monitoring was crucial , and decreasing the use of chemicals did not negatively affect the fouling of a heat exchanger
( HX ). Overall , this approach ( digitalization followed by optimization ) led to a 33 % reduction in chemical consumption and an annual operational cost reduction of $ 200,000 .
Conclusion The use of digital dashboards and laboratory trials at the LNG plant highlights the potential of combining digital tools with traditional industrial processes . This initiative not only optimized chemical usage but also ensured consistent operational performance and significant cost savings . Such advancements underline the importance of adopting innovative solutions for sustainability and efficiency in industrial operations .
TPC during laboratory trials .
48 Heat Exchanger World March 2025 www . heat-exchanger-world . com