Date : 15/02/2022
Objectives
We collect the dust on solar water heater for maintenance of solar water heater.To see the difference in efficiency after measuring dust.
Material
1.Filter Paper
2.Water
3.Weighing Machine
4.Beaker
Procedure
First ,we wiped the dust off the evacuated tube with a damp cloth.Then the dust in water is kept to settle and the water is filtered through filter paper.The filter paper was left in the sun for 2 hours then weighed.Hence, the following data on collection of dust on solar water heater.
1) Solar water heater on Meditation hall
We know ,
Wt. of filter paper 1= P1=2.78gm
Wt. of filter paper 1 with dust = 4.51gm
Wt. of dust on 10 pipes of meditation hall solar water heater = 4.51 – P1 = 4.51 – 2.78 = 1.73gm
Therefore,
Wt. of dust on meditation hall solar water heater = (1.73*32) / 10 =5.53gm
2) Solar water heater on Boys hostel
We know
Wt. of filter paper 2= P2 = 2.98gm
Wt. of filter paper 2 with dust = 3.93gm
Wt. of dust on 5 pipes of boys hostel solar water heater = 3.93 – P2 = 3.93 – 2.89 = 1.04
Therefore,
Wt. of dust on boys hostel solar water heater = (1.04*32) / 5 = 6.65gm
3) Solar water heater on DBRT boys hostel
Wt. of filter paper 3=P3=1.31gm
Wt. of filter paper 3 with dust =2.16gm
Wt. of dust on 5 pipes DBRT solar water heater = 2.16 – P3 =2.16 – 1.31 = 0.85gm
Therefore,
Wt. of dust on DBRT solar water heater = (0.85*32) / 5 = 5.44gm
4) Solar water heater in Technopark
we know,
Wt. of filter paper 4=P4=1.33gm
Wt. of filter paper 4 with dust=2.31gm
Wt. of dust on 5 pipes of technopark solar water heater = 2.32 – P4 = 2.31 – 1.33 = 0.98gm
Therefore,
Wt. of dust on technopark solar water heater = (0.98*32) / 5 = 6.27gm
Conclusion
Cleaning the dust increases the efficiency of the solar water heater.
Rohan has calculated the efficiency after cleaning the dust because that work was handed over to him so check out his blog.
