Study On Energy Saving Of Insulation-type Decorative Wall In Intermittent Heating Room

With the accelerated process of urbanization,the heating mode in north China was diversified.Solar heating,electric heating and other new green heating methods,which can alleviate the pressure of the environment caused by heating in winter,getting more and more favor from people.To save energy and ensure that solar heating,electric heating and other new green heating models can be operated normally,the intermittent heating becomes the main mode of operation of these new heating methods.Insulation-type decorative wall is different from general insulation material,which combines decoration and insulation in one,with the characteristic of rapid installation,in line with the development trend of building assembly.This paper mainly studied the effect of insulation-type decorative wall on energy saving and heating rate of intermittent heating room.The one-dimensional heat transfer model of the wall was established and the model was dispersed by the finite volume method.On this basis,the numerical solution of the heat transfer model was programmed using Matlab language.The heat transfer process of different walls was simulated numerically.Not only the influence of the thickness of the insulation layer on temperature and heat flux of the wall was analyzed but the influence of initial temperature of the wall and the thickness of insulation layer on the heat storage of the wall also was analyzed by numerical simulation.The innovation of this paper was that the transfer process of the heat in the indoor air was ignored and the room temperature model was established.The model can reflect the proportion of convective heat transfer and radiant heat transfer,and then distinguish different heating methods.Dispersed the model by the finite volume method,and the process of solving was presented by Matlab language.Based on the numerical simulation of the temperature rise process of a room,the influence of thickness of insulation layer and heating modes on the temperature of the room,the wall temperature and the temperature of the wall were analyzed.Research showed: although the insulation-type decorative wall can not replace the traditional wall insulation,it can block the heat infiltrate into the wall in the room temperature stage.Its low volume specific heat capacity can accelerate the wall temperature increment and improve the room heating rate.Insulation-type decorative wall can be used in solar heating and electric heating.It can contribute to indoor temperature control,improve the effect of the behavioral energy saving,and promote the promotion of such green heating applications.