Numerical simulation of effective heat dissipation andheat loss in floor radiant heating based on CFD

This article precisely calculates the effective heat dissipation and heat loss of prefabricated insulation board heating floors under different operating conditions through CFD simulation, combined with the theoretical basis of radiant heating and cooling from the ASHRAE handbook. In the calculation process of radiant heat transfer, the MRT (mean radiant temperature) algorithm is used to simplify the radiant heat transfer process. By assuming that surface radiation reaches an imaginary finite surface, the MRT algorithm simulates the heat radiation exchange in indoor air. This algorithm greatly reduces the complexity of the model, making the calculation more efficient. Under the condition of ensuring consistent or similar calculation conditions, the data obtained in this article can provide a reference for design and engineering practice.