What is the Temperature of a Car's Exhaust Pipe?
1 Answers
Car exhaust pipe temperatures range between 30–120°C. The exhaust pipe is part of the engine's exhaust system, which mainly includes the exhaust manifold, exhaust pipe, and muffler. The three-way catalytic converter, which controls engine pollutant emissions, is also installed in the exhaust system. Exhaust pipes generally consist of a front pipe and a rear pipe. Factors affecting temperature: The outlet temperature of the rear exhaust pipe varies depending on the vehicle model, the length of the exhaust pipe, and the number of mufflers. Some modified cars can even produce flames from the tailpipe, with outlet temperatures reaching several hundred degrees. Longer exhaust pipes result in lower outlet temperatures at the tail end, while higher engine RPMs lead to higher exhaust temperatures. At idle, the outlet temperature is only around 30–50°C. Temperatures at different locations: The temperature of exhaust gases exiting the engine into the exhaust manifold is 800–900°C. After passing through the front three-way catalytic converter, the temperature drops to 600–700°C. The temperature further decreases in the mid-section of the muffler, typically to 200–300°C, while the tail-end muffler temperature is around 150°C. After cooling through the muffler baffles, the exhaust gas temperature is slightly above ambient, at 20–50°C.
