www.tjprc.org editor@tjprc.org EFFICIENCY EVALUATION AND COMPARISON OF DIFFERENT TURBULATOR SHAPES IN SOLAR WATER HEATING COLLECTOR SYSTEM ROHIT KHARGOTRA 1 , SUNIL DHINGRA 2 , RANCHAN CHAUHAN 3 DEEPAK BATRA 4 & MAYANK BHARDWAJ 5 1,3,4.5 Faculty of Engineering and Technology, Shoolini University, Solan, Himachal Pradesh India 2 Departments of Mechanical Engineering, Kurukshetra University, Kurukshetra, Haryana, India ABSTRACT Solar flat plate collector is mostly used for the heating purposes like heating of water or any fluid and also used for heating the space or drying purpose. The solar flat plate collector is one of the best methods for the utilization of renewable source of energy. The main component which we use for the fabrication of solar flat plate collector is Absorber tubes (whether it may be aluminium, copper or any other material depending upon the thermal conductivity of material), Glazing, Insulation, wooden box or housing enclosing whole assembly. The absorber tubes used high thermal conductivity materials made of copper material for absorbing the maximum solar radiation. The absorber sheet/plate is also placed inside the wooden box and is coated with black paint and make it black body for the absorption of maximum solar radiation. The glass (thickness 5mm) is also used for reducing the loss of solar radiation from the wooden box/whole assembly. One interesting point here is that we install turbulator inside the absorber tubes for converting the laminar flow to turbulance flow. Here we use the two turbulators, first one is coil-spring turbulator and other one is Twisted tape turbulator. Now vary the length and twist/turn of turbulator and is installed in the absorber tubes for destructing the boundary layer inside the tubes. The objective of the present study is to evaluate the performance of flat plate collector with different geometric absorber configuration. It is expected that with the same collector space higher thermal efficiency or higher water temperature can be obtained. A testing setup is fabricated and performing the experiment taking a different parameter to study the heat enhancement of flat plate collector. KEYWORDS: Flat Collector, Solar Energy, Renewable Energy & Natural Circulation Received: Dec 02, 2017; Accepted: Dec 22, 2017; Published: Jan 19, 2018; Paper Id.: IJMPERDFEB201876 INTRODUCTION Solar energy is one of the most renewable energies available at no cost. Solar radiation falls on the surface of earth and can be used for the benefit of human resources. One of the most popular devices called a solar water heater, which also works by utilization of solar energy. There are many types of equipment which are used for replenishment of solar energy; solar water is one of them. In a single family 20% of electricity is consumed for heating water that is very expensive. In industries, cost of heating water is very high that too is done by burning fossil fuels which lead to a man cause of environmental pollution. Then solar water heater is a best alternate for heating water and producing steam. Although its initial cost is very high, but that gets negotiated with them. Solar radiation falls on flat plate collector which converts solar energy into heat that can be used for heating water up to 60 to 70 degree. Solar water heater is very effective in developing countries like India as we borrow fossil fuels from gulf countries which prove very costly. In industries huge solar heater can be installed for Original Article International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN (P): 2249-6890; ISSN (E): 2249-8001 Vol. 8, Issue 1, Feb 2018, 697-702 © TJPRC Pvt. Ltd.