Internal operation of radiator system
The task for this week was to figure out the internal heat transfer relationship of radiator system. Inside the radiator system, the heat of water will be dissipated to radiators steel fins and the simulation is shown in Figure as below.
Heat transfer process is corresponding to the heat transfer coefficient between two different substances. Hence the ASHP based heating system includes 3 heat transfer processes in total, first one is between refrigerant gas and water, the second is between water and steel fins, the third one is between radiator surface and room air.
The performance of the whole heating system will depends on every parameters of heat pump and radiator, which also relates to a series of equations. For this project, my target is to figure out the operation principle of both heat pump and radiator. Meanwhile, implement the heating system into the MATLAB and Simulink as a model. For the next semester, the work will focus on the combination of heat pump system and IDEAS building model, achieving a good temperature tracking and control.
The outcome of heat pump, radiator and IDEAS three components should be connected as the Figure shown below:
The basic operation is that IDEAS output the heat requirement based on SAP target and air temperature to heating system model, which will then calculate the heat output and start working. The heat will be transferred to room through radiator. The system will calculate heat requirement for next time step via control system as the room temperature change.
