08.2012 formula sae cbr250 turbo kit & engine dyno - senior design project presentation
TRANSCRIPT
Semester I I PresentationTobi’s Designs- Short Edition
The University of Texas at Arlington
Original Intend-Design Intake-CFD Flow Validation
Incomplete Tasks
-Improve Lubrication-higher flow Oil Pump
-Run and tune assembled Engine on Dyno
-Piston Oil cooling Jets
Accomplishments
Contents
-Dyno Teststand-Data Acquisition
-Intake Manifold with CFD Analysis-Complete TURBO Kit package
-Turbo , Throttle Body , and Injector spec sizing
Dyno
Engine Dynamometer-Dynamometers are useful in the development and refinement of modern day engine technology-Use of the “dyno” allows for measurement and tuning-Water Brake “dyno”
Test Stand Components-Cooling System
- Radiator-Fuel System
- Tank- Pump- Regulator
-Flow Meter-Throttle Control
- Throttle-Data Acquisition-Battery-Shelf-Drive Axel Safety Bar
Test Stand Design-Components contained within Test Stand-Fully Adjustable Rear Engine mount-Interchangeable Front Engine Mount-Accessible components-Top frame can be used as workspace-Equipped with Pneumatic Tires
Test Stand Design
Turbo Kit
Intake Manifold
-PPFL RPT Prototype Printed
-PPFL polymer provides highest heat and chemical resistance- Bonded 2 piece design
-Thermal Set Polymer
Bonded 2-Piece Design
Bonded 2-Piece Design
-Epoxy Seal Bonded-#6 Cap Screw reinforced
Throttle Body
Intake Runner
Turbo Kit
Turbo Kit
Turbo Kit
CFD Sebastian Peters
Typical manifold
Large amounts of separation
29 CFM
Oval Runner IntakeNo Separation
110 CFM
Results
Outlet
1 2 3 4
Mach Mass Flow(kg/s)
0.3 0.05869 0.05860 0.05865 0.05863
CFM
0.3 110.74 110.50 110.65 110.47
Q (m^3/s)
0.3 0.05226 0.05215 0.05222 0.05213
Pressure Drop (Pa)
0.3 5844.2 5668.7 5754.4 5790.9
• Percent Difference Between the 4 Runners:• Orifice Constant = 2.6%
• CFM = .22%
• Pressure drop = 3.05%
Plenum Flow 1Outlet
Volume being used spans up to this point
Plenum Flow 2
Volume span being used
Oil Pump
Pump Modifications- Honda 600cc Engine Oil Pump- larger pump- gear rotors provide increased flow rate-custom CNC housing packaged to fit CBR250 crankcase- compensates for higher oil demand due to turbo lubrication and piston cooling oil jets
Gear Rotors
Oil Flow Diagram
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Pressure Regulator
Oil PanReturn
-addition turbo oiling circuit- pressure regulator governs flow rate and pressure- ideal turbo oil pressure 15-20 psi
Oil Filter
Oil Pump
Oil Strainer
Crankshaft
Camshafts
Pressure Relieve Valve
Conclusion
-Overbid on time applied -Oil pump and lubrication
Conclusion
-Lots of new Goodies for theUTA FSAE CBR250 Turbo