Sorry, I don't quite understand your question. What you want to reflect is that the frequent operation of the fan has affected your daily use?
New Asus Chromebook C536. Using COG (app) to monitor temps, fan comes on at 35-40C (all CPUs), with usage 15-20%. The fan stays on for several minutes with temps at their lowest (28-32C), usage 4-7%. Just about any momentary spike in CPU usage will cause the fan to turn on and a long time at low usage and low temps to turn off. This does not seem normal. It's worth noting that the CPU is rated at 28 watts @ 3GHz.
Does the situation improve if you reboot the chromebook? Does this problem occur all the time?