mekflu presentation
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mekfluTRANSCRIPT
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H-02 Hydrostatic Pressure
• Experiment Data
FILLING TANK DRAINING TANKMass (gram) Height of water (mm) Mass (gram) Height of water (mm)
50 47 50 54770 56 70 5690 64 90 63
110 71 110 71130 76 130 76150 82 150 82170 88 170 88190 93 190 93210 98 210 98230 104 230 104250 109 250 109270 113 270 113290 118 290 118310 123 310 123330 128 330 128350 133 350 133370 137 370 137
a = 10 cm b = 7.5 cm d = 10 cm L = 27,5 cm
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H-02 Hydrostatic Pressure
• Data Result a & b • Data Result Graph h vs F – Partially
– Fully
Partially Submerged
Experiment Theory RE
a 2,306 2,72 75%
b -0,01 -0,042 15,44%
Fully Submerged
Experiment Theory RE
a -204,97 -181,81 12,73%
b 41,86 40,909 2,34%
4 5 6 7 8 9 10 110
10
20
30
40
50
60
70
80
90
100
Series1
10 11 12 13 140
20406080
100120140160180200
Series1
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H-02 Hydrostatic Pressure
Analysis• Experiment : in this experiment
the thing that differnet from the modul that the measurement alredy given
• Result : – There’s High RE in the Linear
Equation – Linear increasing of the graph
• Error : – Human – Reading
Conclusion • We can get the formula 3
and 5 from simplifying the sigma Moment from formula 1 and 2
• The increase of the mass will equal to the increase of the water, because if we add the mass we need to add the water to neutralize the moment caused by mass
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H-03 Free Floating Body
• Experiment Data
SHEAR LOAD TRANSVESAL LOAD RIGHT ANGLE LEFT ANGLE
200
15 2,25 2,25
30 4,5 4,5
45 6,75 6,75
60 8,5 8,5
250
15 2,25 2,5
30 4,75 5
45 7,25 7,25
60 9,5 9,5
300
15 2,5 3
30 5,25 5,75
45 8 8
60 10,5 10,5
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H-03 Free Floating Body
• Data Result
Shear Load GM Experiment (mm) GM Theory (mm) RE R2
200 87,2 72,45 20,40% 0,0819
250 79,6 84,66 5,97% 1,0221
300 71,8 44,83 60,16% 4,009
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H-03 Free Floating Body
Analysis• Experiment:
– Submerged volume = Inertia – Hanging the ponton = Center
gravity • Result: the value of GM
from 200 to 300 is decreasing
• Error: – Human – Reading
Conclusion• GM depeng Center Gravity,
Center gravity depend shear load position
• GM depend on the volume of submerged pontoon, the volume depend on shear load position
• GM is equal to the gap between floating point metacentrum point with the distance from the pontoon
• GM>0 or GM=0 is stable
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H-06 Flow Through The OrificeExperiment Data
• 1. Constant Head
• 2. Variable Head
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H-06 Flow Through The OrificeExperiment Data
• 3. Coefficient of Flow Rate
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H-06 Flow Through The OrificeCoefficient of Flow Rate
D = 3mm , h = 400 D = 3 mm , h = 360 mm
D = 3mm , h = 380 mm D = 3mm , h = 340 mm
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H-06 Flow Through The OrificeCoefficient of Flow Rate
D = 3 mm , h = 320 mm D = 6 mm , h = 380 mm
D = 6 mm , h = 400 mm D = 6 mm , h = 360 mm
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H-06 Flow Through The OrificeCoefficient of Flow Rate
D = 6 mm , h = 340 mm 3 mm
D = 6 mm , h = 320 mm 6 mm
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H-06 Flow Through The OrificeConstant Head
D = 3 mm
D = 6 mm
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H-06 Flow Through The OrificeVariable Head
D = 3 mm
D = 6 mm
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H-06 Flow Through The Orifice• Result Analysis
Cv average = 1.6261 , RE = 65.93%Cd average = 0.95 , RE = 2.55 %
• Error AnalysisHuman Error
• ConclusionCoefficient of flow is found from the result of Cv and Cd in using the 3 mm and 6 mm hole
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H-08 Friction in PipeExperiment Data
• Data Observation
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H-08 Friction in PipeExperiment Data
• Water Manometer
• Mercury Manometer
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H-08 Friction in PipeLinear Regression log hf – log V2
• Water Manometer
• Mercury Manometer
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H-08 Friction in PipeLinear Regression log f – log Re
• Water Manometer
• Mercury Manometer
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H-08 Friction in PipeLinear Regression log hf – log V
• Water Manometer
• Mercury Manometer
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H-08 Friction in Pipe• Data ResultVelocity of output water per second water manometer = 0.535840663 m/sVelocity of output water per second mercury manometer = 3.05328076 m/sR value of water manometer = 0.991R value of mercury manometer = 0.891Reynolds Number = 21877.616 (turbulent flow)Vc = 5.97 m/sRelative error water manometer = 5.9 %Relative error mercury manometer = 6.91 %
• ErrorHuman
• ConclusionFriction in pipe with an average speed can cause changes in pressure