动量传递、热量传递和质量传递在化学工程中通称为传递工程,在本质上都属于物理过程。传递工程和化学反应工程构成化学工程学科的基本内容。热量传递是化学工程的基本内容之一。 传热过程和其它传递过程一样,在一定的条件下存在一种极限,达此极限后就没有净的热量传递发生,即达到热平衡状态。热平衡关系很简单,即物系在各点温度相等。传热 Momentum transfer, heat transfer and mass transfer, commonly known in chemical engineering as transfer engineering, are in essence physical processes. Transfer engineering and chemical reaction engineering constitute the basic content of chemical engineering. Heat transfer is one of the basic contents of chemical engineering. The heat transfer process is the same as other transfer processes. Under certain conditions, there is a limit. After this limit, there is no net heat transfer, that is, the heat balance is reached. The relationship between heat balance is very simple, that is, the temperature at each point is equal. Heat transfer