• Sangram Patil
• Rahul Lodha
• A.A.Keste

In the overall progress of any country in the world energy is an important factor. Besides the other three classical factors, i.e. land, capital and labour, energy is of utmost importance in the context of progress. The energy demand is expected to increase three times the present value in the year 2025. With the increasing per capita power consumption, the depletion of conventional resources, an increase in the cost of power production and environmental pollution are emerging issues of concern in future. Seeking alternate resources and technologies will be solutions to these problems to a great extent. At present there are many industrial applications of hot water in the temperature range of 45oC to 65oC. There are various conventional and non-conventional methods available to produce a large quantity of hot water (45oC to 65oC). The global temperature is increasing in all parts of our country. To tackle such a hot ambient conditions prevailing in major parts of country an attempt can be made to use non-conventional cost effective simple method to produce hot water. With these facts in mind two concrete solar collectors, of one by using heat transfer enhancement technique, dimple surface, of size 2 m2 were developed, designed, fabricated and tested in Pune. Trials were conducted in both winter and summer season on the concrete collector for different mass flow rates from 20 to 45 liter/hr. The average outlet water temperature was found to be 58◦C for the collector with plain pipe and 59.5◦C for the collector using dimples on pipe. The average overall efficiency of concrete collector is reasonably good 34% for pipe without dimple and 38 % for pipe with dimple. This research paper aims at ascertaining the practicality of using concrete for producing solar collector and makes the collector more cost effective and efficient. This research work paves way for the possible integration of concrete collector with roof slab to provide human comfort and hot water requirement.

Flat-plate solar collector, concrete, metal fibers, heat transfer enhancement.

"Performance Analysis on Concrete Solar Collector", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.182-189, December-2018, Available :http://www.jetir.org/papers/JETIR1812025.pdf

"Performance Analysis on Concrete Solar Collector", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp182-189, December-2018, Available at : http://www.jetir.org/papers/JETIR1812025.pdf