• Hitendra Damarlal Chaudhary
• Dr. Sadanand A. Namjoshi

The sun is the source of all energy. The solar energy can be used for heating and cooking purpose. The utilization of solar energy for heating of water is common application but efficient water heating is the toughest because it depends on whether condition and to overcome such difficulty various modifications have been proposed by different researcher in terms of modification in pipe shape or in terms of change in the material of absorber plate etc. and so the objective of present work is to evaluate thermal performance of Evacuated Tube Collector (ETC) solar water heater with two different inner diameter of 20 mm and 18 mm with 40 mm same outer diameter in case of two ETC experimental set up.

Solar Energy, Evacuated Tube Collector, Water Heating, Absorber Plate

"Influence of Inner Tube Diameter on Thermal Performance Evaluation of Evacuated Tube Solar Water Heater", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.138-142, November-2018, Available :http://www.jetir.org/papers/JETIR1811C68.pdf

"Influence of Inner Tube Diameter on Thermal Performance Evaluation of Evacuated Tube Solar Water Heater", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp138-142, November-2018, Available at : http://www.jetir.org/papers/JETIR1811C68.pdf