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EcoEngine: Modified Stirling Engine Team #2 Abdulkareem Kotun Ryan Troncoso Mykenson Pierre EML 4551 Ethics and Design Project Organization FIU Department of Mechanical Engineering Miami, Florida

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Stirling Engine Operates by compression and expansion of gases at different temperatures. Conversion of heat energy to mechanical work Stirling Engines are known for high efficiency but low reliable power

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Problem Statement Create a Stirling Engine with reliable power output Maintain high efficiency Low Cost

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Stirling Engine Configurations Alpha Configuration

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Stirling Engine Configurations Beta Configuration

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Stirling Engine Configuration Gamma Configuration

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Literature Survey

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EcoMotor

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EcoMotor Component Design

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Analysis

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Theoretical Data and Results Variables Vmin,e0 Ade19in^2 Xp1in Adc24in^2 0 90 Xd3in Vdead,c0 Ap8.84in^2 Aheater19in^2 Lheater2.35in Nheater4 Acooler24in^2 Lcooler1.44in Ncooler4 Th552.59Kelvin Tk297.03Kelvin R=6.13 Vr6.41in^2 Ve=3.02 Vc=68.65 Vheater =178.75 Vcooler =138.05 Tr=411.68Kelvin M=4.75 p=28.03PSI

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Construction Material Aluminum 6061- Power Cylinder, Regenerator Section, Power Piston Stainless Steel- Hot Caps, Displacer Piston Assembly Boston Miter Gears L112Y

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Experimentation Plan Dynamometer- Measures torque generation Weighted Scale- Measures force exerted Torque- Force x Length of Torque Arm

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Cost Analysis Stainless Steel - $66.95 Aluminum 6061 $135.56 Hardware $167.91 (Bearings, Gears, Screws, Pins, Sealants) Machining- $6000.00 Total Cost- $6370.42

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Scotch Yoke Stirling Engine 2209

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Experimental Ran Engine using Mini Hand Torch Temperature readings using Raytek Infrared Thermometer Slow-mo feature on IPhone to calculate RPM T h = 552.59 K T c =319.26 K Power =.8925 Watts 600 RPM

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Cooling Fan Design and Simulations FanDesign Avg Vel (m/s)Max Vel (m/s) Volume Flow Rate (in3/s) Mass Flow Rate (lb/s) Original0.6160.6217696.9080.334

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FanDesign Avg Vel (m/s) Max Vel (m/s) Volume Flow Rate (in3/s) Mass Flow Rate (lb/s) Second0.5050.5176409.6650.278 Cooling Fan Design and Simulations

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FanDesign Avg Vel (m/s)Max Vel (m/s) Volume Flow Rate (in3/s) Mass Flow Rate (lb/s) Third1.7761.78522131.7770.959 Cooling Fan Design and Simulations

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FanDesign Avg Vel (m/s)Max Vel (m/s) Volume Flow Rate (in3/s) Mass Flow Rate (lb/s) Fourth1.5041.80422366.1790.969 Cooling Fan Design and Simulations

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Simulation Results FanDesign Avg Vel (m/s) Max Vel (m/s) Volume Flow Rate in3/s Mass Flow Rate lb/s Original0.6150.6207696.9070.333 Second0.5040.5166409.6650.277 Third1.7751.78422131.7760.959 Fourth1.5091.80322366.1790.969 Fifth0.7580.7959863.17010.427

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Application

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Global Learning Produce clean eco-friendly energy at low costs Will meet a No Skill requirement for maintenance Designed to operate with SI and US units

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Standards SAE: Test Method for Measuring Performance of Engine Cooling Fans (J1339) Engine Terminology and Nomenclature-General (J604) Engine Sound Level Measurement Procedure (J1074) Engine Cooling Fan Structural Analysis (J1390) ANSI/AGMA 2001-C95 ASME: Code of Ethics Safety Codes and Standards Energy Efficiency Heat Systems Automotive Renewable and Alternative Energy

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Schedule

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Division of Responsibilities Abdulkareem Kotun Research, Literature Survey, Formulation of Design, and Analysis Ryan Troncoso - Solidworks/CAD Design, Simulation, and Prototype Construction Mykenson Pierre Solidworks/CAD Design, Material Selection, Cost Analysis

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Future Work Further optimization of Cooling Fans Machining of EcoMotor using Metals Couple EcoMotor with another system and monitor results

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