International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Design and Development of Treadmill to Generate Electricity by Using Mechanical Energy Neha Patil1, Prajakta Hulle2, Avika Ingale3, Shraddha Deshbhratar4
1 Neha
Patil, Assistant Professor, Dr. D Y Patil Institute of Engineering Management and Research, Akurdi. 2 Prajakta Hulle, Dr. D Y Patil Institute of Engineering Management and Research, Akurdi. 3Avika Ingale, Dr. D Y Patil Institute of Engineering Management and Research, Akurdi. 4Shraddha Deshbhratar, Dr. D Y Patil Institute of Engineering Management and Research, Akurdi
---------------------------------------------------------------------***--------------------------------------------------------------------charging a phone or MP3 player. Abstract - In this paper, a method for the generation of electricity is proposed by using Mechanical Energy which is 2. DESIGN generated due to the workout carried on Treadmill Machine. The Treadmill is driven by human being. The developed treadmill is based on a manual flatbed treadmill using a brushless PMDC generator coupled to a front end of belt. A rechargeable battery is used to store the generated energy and additional components to measure the generated power, speed by using Tachometer, distance, calories burnt are included. All these parameters are displayed on LCD screen which is interfaced with microcontroller. The electric energy generated while carrying out exercise may be used for charging a battery or for any other work. The design of this Treadmill is presented in this paper. Key Words: Generator, Treadmill, Battery, Tachometer.
1.INTRODUCTION Everybody knows that exercise is good for health. No one can ignore the health benefits of regular exercise and physical activity regardless of age, sex or physical ability. There are many advantages of exercise. Most of the people do exercise worldwide. Different types of machines are used for exercise. These machines have handy operations. In manual exercise machines muscle power goes waste during exercise. Anyways this power which otherwise goes waste during exercise may be used by converting it into any other form of energy. With the technological advancement across the globe, the demand for energy is drastically increasing. The power generation is also increasing and most of the energy generation plants are using fossil fuels which bring up many adverse effects. Hence there is a need of alternative methods of power generation. Inventions are going on worldwide for generating power through alternative methods. A treadmill manufacturing company wood way manufactured a treadmill which generates power for display and can even be used for Š 2017, IRJET
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Impact Factor value: 5.181
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Load analysis of the selected material: Maximum applied load = 150kg = 1471.5 N. Design of Shaft: Maximum allowable load = 150 kg = 1471.5 N Length of Shaft= 600 mm. Uniform distributed load= 2.45 N/mm. Consider simply supported load. Material: Designation - C45. Condition - Tubes, cold drawn and tempered. Yield strength (syt) - 600 N/mm2. Ultimate tensile strength (Sut) - 700 N/mm2. ĆŹp = 0.3 Syt = 0.3*600 = 180 N/mm2. ĆŹp = 0.18 Sut = 0.18*700 = 126 N/mm2. Select whichever is smaller value – ĆŹp = 126 N/mm2. Assume kb =1.5 and kt =1. P(KW) = 2đ?œ‹NT 60∗1061.5=2đ?œ‹T∗1500 60∗106. T = 9549.29 N-mm. Mmax = (2.45*600) *300 = 441450 N-mm. As per ASME code, đ?œ‹đ?‘‘3ĆŹp16= √ (đ?‘˜đ?‘? ∗ đ?‘€)2 + (đ?‘˜đ?‘Ą ∗ đ?‘‡)2. đ?œ‹đ?‘‘3 ∗ 126 16= √ (1.5 ∗ 441450)2 + (1 ∗ 9549.29)2. đ?œ‹đ?‘‘3 ∗ 126 16= 662243.852. đ?‘‘3= 26768.097. d = 29.91. d ≃ 30 mm. Step 6: - Bearing selection and design P = X*V*Fr + Y*Fa Where, P = equivalent dynamic load (N), Fr = Radial load (N), Fa = Axial or thrust load (N), V = Race rotation factor Fđ?‘&#x; =200 ∗ 9.81 4 = 490.5 N Hence, the bearing is subjected to Pure bearing load. The value of V is 1.2 when the outer race rotates w.r.t. ISO 9001:2008 Certified Journal
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