Experimental Study On Radiation Characteristics Of Radiation Terminal

In building energy consumption in China, only for winter heating and summerair-conditioning energy consumption up to85%. Heating and air-conditioning powerconsumption is huge, in order to solve this problem, domestic and foreign scholars have done a lot of research, hoping to decrease the energy consumption of the air-conditioning system. In order to achieve the purpose of energy saving for the air-conditioning system, it can optimize the system design and control strategy; For building ontology, it must fully consider the thermal inertia of buildings when designing architectural.This dissertation mainly research on the thermal inertia of the building by using aexperiment table of displacement ventilation and radiation terminal air-conditioningsystem. Radiation heating and cooling has features of low temperature thermalmedium heating, high temperature refrigerant cooling, a wide range of hot and coldsource selection, high energy efficiency, low-grade energy can be used, so the use ofsuch systems developed rapidly in recent years. Radiant floor heating is no longer theonly form of radiant heating and cooling, these form of roof radiant cooling, wallradiant heating and cooling, radiant floor cooling also have a lot of applications. Inorder to have a better knowledge and understanding of different ways of radiation,different types of the radiation plate, different positions of the radiation plate, theexperiment table is designed and built with three forms of radiation terminal forheating and cooling. In this dissertation, the experimental tests the indoor temperatureand envelope surface temperature measurement of the two room, and the performancecharacteristics of different orientation during heating period and without heatingperiod were analyzed. The characteristics of integrated thermal inertia of buildingswere summarized in terms of time delay and attenuation by the general comparisonand analysis of the experiment results.The research results indicate that the integrated thermal inertia of residentialbuildings is related to the envelope materials of buildings, orientation, humanactivities, radiating device and other factors. Without considering the influence ofsolar radiation, the furniture in the room play the most important role to the indoortemperature of the residential building; the second factor is the heat emission of human activities and devices in the rooms.