Question

In thermo-syphon cooling system, the cooling only depends on temperature and is independent of the engine speed.

(a) True

(b) False

I had been asked this question during an interview.

This intriguing question originated from Liquid Cooling Systems topic in section Heat Rejection and Cooling of IC Engine

Answer 1

The correct answer is:

(a) True

In a thermo-syphon cooling system, the coolant circulation is driven by natural convection, which is dependent on temperature differences. The flow rate of the coolant does not directly depend on the engine speed, as the system operates based on the heat-induced rise in coolant temperature. This makes the cooling process temperature-dependent rather than speed-dependent.