David Johnston
About David Johnston
David Johnston is a Heat Transfer Engineer at ExxonMobil, recognized for his contributions to cost savings, CO2 reduction efforts, and developing global standards in heat transfer modeling.
Heat Transfer Engineer at ExxonMobil
David Johnston currently holds the title of Heat Transfer Engineer at ExxonMobil, located in Spring, Texas, United States. Since his tenure began in 2020, he has progressed the company's CO2 reduction efforts by serving as a subject matter expert in heat transfer for electrification. Additionally, he has been responsible for leading multiple global training webinars and has developed global standards and procedures for heat transfer modeling.
Previous Engineering Experience
Before joining ExxonMobil, David Johnston accrued diverse engineering experience. In 2019, he worked as an Emissions Solutions Engineering Intern at Cummins Inc. in Columbus, Indiana. In 2018, he served as a Capstone Project Consultant for Kawneer Company, Inc. in the Greater Atlanta Area. From 2017 to 2018, he was a Mechanical Engineering Co-op at Newcomb & Boyd, LLP in Atlanta, Georgia. Additionally, he spent 11 months as an Undergraduate Research Assistant at Georgia Institute of Technology in 2017.
Educational Background in Mechanical Engineering
David Johnston has a strong educational background in Mechanical Engineering from the Georgia Institute of Technology. He completed his Master of Science (MS) in Mechanical Engineering from 2019 to 2020. Prior to that, he earned his Bachelor of Science (BS) in Mechanical Engineering, completing the program from 2014 to 2018.
Notable Achievements in Engineering
David Johnston has made significant contributions and achievements in his field. He prevented a $45 million equipment failure by modeling startup and shutdown scenarios for new technology. He delivered over $9 million in annual cost savings by proposing design changes for heat exchangers. David also designed the company's first experiment to measure thermal effects in fluidized bed reactors, resulting in $250,000 savings in vendor costs. He was awarded for Courage, Innovation, and Measured Risk Taking by the Equipment Technology Division at ExxonMobil.