What is Heat Transfer ? Thermodynamics? ,Heat and Temperature ? conduction ,convection ,radiation -MECHANICAL
Heat transfer / Heat v/s Temperature/Modes of Heat transfer ..... BASICS OF HEAT TRANSFER While teaching heat transfer ,one of the first questions students commonly ask is the difference between heat and temperature .Another common questions concerns the difference between the subjects of heat transfer and thermodynamics . Let me begin this unit by trying to address these two questions.also three modes of heat transfer ,conduction convection and radiation. What is Heat? Heat is a form of energy. It derives its origins at the molecular scale. Molecules of a substance vibrate at their positions either fixed or not when energy is supplied to them. As they vibrate they transfer their energy to the surrounding molecules causing them to vibrate as well. What is Temperature? The temperature of a body is the measure of the amount of heat content possessed by it. It is measured in degree Celcius (°C) or Kelvin(°K). The temperature of a substance is...