Whitepaper explores the impact of carbon residue

Heat transfer fluid maintenance and analysis are essential operations that need to be conducted periodically. The paper also discusses a typical case of system malfunction. In this example, although the maintenance procedures were followed, laboratory tests and data analysis revealed additional problems that required urgent attention.

Manufacturers need to pay attention to signs of overheating and thermal cracking. By completing necessary tests and enlisting maintenance help from a reputable thermal fluid specialist, money can be saved and accidents avoided. The whitepaper also discusses flashpoint management and total acid number values since correct control of these can also reduce maintenance costs. It also provides plant operators with a checklist containing ideal values and a traffic light system for heat transfer fluid analysis and management.

Dr Wright, commented: "In my experience even plant operators that proactively look after the safety and health of their systems can find they have issues that require expert advice. Carbon residue, also known as coke, is the biggest offender when it comes to system safety. It can lead to fouling and eventually carbon deposits chocked pipes, creating a fire hazard. Ideally, action should be taken when the carbon residue level is somewhere between 0.75 and 1.00% of total fluid weight. At this level, maintenance consists of flushing and replenishing the fluids. Anything above that will need aggressive cleaning which can lead to significant plant downtime."