Design of Electric Tracing Systems for Petrochemical Process Pipelines

Recent developments in electric tracing as a medium to facilitate the flow of viscous material in pipelines have placed a valuable aid at the disposal of the process designer. An attempt has been made in this paper to update the knowledge of electric tracing. Discussed are the installation of electric tracing on systems not compatible with custom-made heaters and the design of heaters for those who prefer to fabricate their own MI-cable electric-tracing system. The paper contains various data and illustrations useful in the design of pipeline tracing.