Suppose I have a glass container (trough) and I want to heat the water inside. I put it on a hot plate. Now, even though the hot plate is at $110\,^{\circ}C$, the liquid only reaches $50\,^{\circ}C$. I want to know why.
The heat loss to the surroundings is convection or radiation. If I assume only radiation, the numbers don't add up. Can you tell me how to calculate the heat lost through convection (by air) based on area, temperature etc (An estimate would be good). Also evaporation might play a role too.
Please guide me on how to understand this.
Best Answer
Heat transfer texts clearly indicate that empirical equations are involved, due to the fact that turbulence is often encountered. You may have to do a search for your particular geometry to find the equation that estimates your convective heat loss.