The Research Character Of Floor Radiation Heating Based On Heat Pipe Technology

It is a effective shortcut to attain construction energy-saving by the floor radiation heating'At present plastic pipe was the main material in it.Plastic pipe has many merits,but its thermal resistance was great and thermal conductivity was lower,what bring out was lower response speed and abstraction of heat power.It can resolve those shortcomings use heat pipe perfectly.We use heat pipe take the place of plastic pipe in floor radiation heating this article and researched a 1000 millimeter heat pipe.Through theory researching we can know the maximum capacity of a heat pipe heat transmission was 4124.6W,so it can use few heat pipes reach the heating result.The heat transmission of evaporation zone was 2684W and condensation zone was 2632W,from that we can know why it has good isothermality.The heat transmission of heat pipe which fix fins will increase 34% through calculation.It is better when the heat pipe liquid-filled volume reach approximately 30%,evaporation zone reach 190 millimeter,angle of dip keep 1°-2°,the temperature of heating medium keep 40℃,the flow rate keep 0.5m3/h,the space between two heat pipes keep 200 millimeter , and so on data through experiment.It obtain the temperature of room air and floor,mean radiant temperature of building envelope and draw a conclusion of human body comfort.We can know the air speed and temperature distribute through analog simulation.In a word,it cut a new road for construction energy saving using heat pipe in floor radiant heating.