• Dattatray Galhe
• Rahul M Mulajkar

The rate of drying increases with the rise in drying air flow rate at constant drying air temperature, as one of the solar collector applications, and hence the drying time decreases with the increase in the flow rate of drying air. As a result of the air flow rate, the drying rate doesn't vary much; this effect is less significant than the temperature of the dry air. It is often found that the drying rate decreases occasionally, which can be improved by forced air circulation. The configuration of the Solar Collector System is therefore very critical, since it is based on the primary operating fluid temperature and flow rate. The scope for designing a successful Evacuated Tube Solar Collector (ETSC) Device is therefore open. The heat obtained by the collector depends on the operating fluid's characteristics. Non-edible (engine oil) is used in this research work as a main working fluid rather than traditional water / air working fluid. To improve the solar system's effectiveness, it is therefore important to research its results. In this work, the efficiency of both working fluids (engine oil and air) is analyzed and compared both experimentally and analytically. For different residential, rural, manufacturing and food drying uses, this powerful device can be used.

Flat Plate Collector; Phase Change Material; Evacuated Solar Tube Collector; Non-edible Oil; Thermal Efficiency.

"Development of Methodology for Performance Evaluation of Evacuated Solar Tube Collector ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.680-683, January-2019, Available :http://www.jetir.org/papers/JETIR1901G91.pdf

"Development of Methodology for Performance Evaluation of Evacuated Solar Tube Collector ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp680-683, January-2019, Available at : http://www.jetir.org/papers/JETIR1901G91.pdf