A Performance Measurement of Double Glass Solar Flat Plate Collector using Corrugated Absorber Plate Having Twisted Tape Inserted In Tubes and Packed Bed Materials Around the Tubes

Solar energy is the better alternative source due to its availability all over the world. A number of systems are developed those replace conventional energy sources by the solar energy in many applications. One of the methods is developed to improve the performance by double glass solar flat plate collector using corrugated type absorber plate having twisted type inserted in a tube with packed bed material around the tubes. The experiment is carried out with different mass flow rate by forced circulation and natural circulation and also compares the efficiency of forced circulation and natural circulation by various mass flow rates. The result shows that the maximum efficiency is observed at 15:30 in all three flow rates as 84.03%, 86.50% and 87.14% respectively by forced circulation and during natural circulation the maximum efficiency is observed at 15:30 in all three flow rates as 35.26%, 54.54% and 76.39% respectively. It is also conclude that the efficiency is increased with the increasing mass flow rate and temperature is increased with decreasing the mass flow rate. It can also concluded from this present work that the daily collector efficiency increase slowly with respect to the mass flow rate except for small value of mass flow rate. The solar water collector of modified design of corrugated surface has good potential for harnessing solar radiation and also it’s gradually increase the efficiency by the effect of packed bed materials.