Comparison of three systems of solar water heating by thermosiphon

3rd International Meeting for Researchers in Materials and Plasma Technology; 1st Symposium on Nanoscience and Nanotechnology

物理学;材料科学

Hernández, E.^1 ; Guzmán, R.E.^1

Universidad Pontificia Bolivariana, Floridablanca, Colombia^1

关键词: Copper tubing;    Maximum Efficiency;    Maximum temperature;    Solar heating system;    Solar water heating;    Stainless steel tube;    Temperature curves;    Water heating systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/687/1/012007/pdf
DOI  :  10.1088/1742-6596/687/1/012007

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The main purpose of this project was to elaborate a comparison between three water heating systems; using two plane water heating solar collector and another using a vacuum tube heater, all of them are on top of the cafeteria's roof on building of the "Universidad Pontificia Bolivariana" in Bucaramanga, Colombia. Through testing was determined each type of water heating systems' performance, where the Stainless Steel tube collector reached a maximum efficiency of 71.58%, the Copper Tubing Collector a maximum value of 76.31% and for the Vacuum Tube Heater Collector a maximum efficiency of 72.33%. The collector with copper coil was the system more efficient. So, taking into account the Performance and Temperature Curves, along with the weather conditions at the time of the testing we determined that the most efficient Solar Heating System is the one using a Vacuum Tube Heater Collector. Reaching a maximum efficiency of 72.33% and a maximum temperature of 62.6°C.