531 Words3 Pages

Experiment 1: Pressure, Temperature, and Velocity Measurement
Objective:
The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement.
Equipment:
Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel.
Part 1: Measurement of Atmospheric Pressure and Density
1. Read the barometer and wind-tunnel thermocouple.
2. Record the atmospheric pressure and wind-tunnel air temperature.
3. Record the estimated uncertainty for the readings taken.
4. Calculate the density of air inside the wind tunnel and uncertainty [kg/m3].
Part 2: Calibration of a Pressure Transducer and Scannivalve
1. Zero out the micromanometer and obtain its bias. Apply this bias to all micromanometer measurements.
2. Connect the micromanometer, pressure transducer (voltmeter), and scannivalve to the Pitot tube in the subsonic tunnel.
3. Record the readings of the three instruments at eight different speed settings of the tunnel: 15, 20, 25, 30, 35, 40, 45, & 50.
4. Plot two calibration curves with pressure transducer reading as the abscissa and micromanometer reading as the ordinate for the first, and micromanometer versus scannivalve as the second. Convert micromanometer data to read as total pressure in SI units [Pa].
5. Compute a linear least-squares-fit of the calibration data and plot the resulting line on the same graph as the calibration data. Comment on the linearity of the pressure transducer and scannivalve.
Part 3: Calibration of the Tunnel
1. Connect the micromanometer (calibrated in Part 2) across the wind-tunnel contraction in order to measure the static pressure drop.
2. Connect the

Related

## Formal Lab On Hooke's Law

1666 Words | 7 PagesRepeat steps 1-5 for the cord and elastic band 6. Determine the spring constant of each object by graphing F v. Δx for linear springs. If the graph does not appear linear, graph F v. Δx raised to the appropriate constant Part 2: 1. Predict the velocity of the spring when displaced at 0.02, 0.04, 0.06, 0.08, 0.10 meters, using the spring constant derived from part 1 2. Secure the spring to the stand 3.

## Determining the Cooling Time Constant for a Block of Steel

465 Words | 2 PagesUsing this equation I can determine the cooling time constant for the block of steel. Observations: Below you will find the data obtained from the experiment as well as the excess temperature I calculated. Time in min Actual Temperature of Block of Steel ° C Excess Temperature in ° C 0 153 128 1 133.4 108.4 2 116.7 91.7 3 102.6 77.6 4 90.7 65.7 5 80.6 55.6 6 72.1 47.1 7 64.9 39.9 8 58.7 33.7 9 53.6 28.6 10 49.2 24.2 11 45.5 20.5 12 42.3 17.3 13 39.7 14.7 14 37.4 12.4 15 35.5 10.5 16 33.9 8.9 17 32.5 7.5 18 31.4 6.4 19 30.4 5.4 20 29.6 4.6 Chart

## Buoyancy Lab Essay

620 Words | 3 PagesFinally, we analyze the errors in both parts of the lab by propagation by substitution and compare the theoretical-experimental values using errors. III. Results: The theoretical buoyant forces for the sphere, the small cylinder, the block, and the big cylinder are 0.297N, 0.131N, 0.369N, and

## Standing Waves Lab Report

329 Words | 2 PagesPhysics 1408 Section E1 Standing Waves in a Vibrating Wire Callie K Partner: Miguel E Date Performed: March 20, 2012 TA: Raziyeh Y Abstract This lab had two purposes. The first was to determine the relationship between the length of a stretched wire and the frequencies at which resonance occurs. The second was to study the relationship between the frequency of vibration and the tension and linear mass density of the wire. In the first part we found the resonance, frequency and wavelength of a wire and used this data to calculate the speed of the traveling waves. For first harmonic, our wavelength was 1.200 m, found by the formula λ=2L/n.

## Cooling Tower Demonstrator

1863 Words | 8 PagesWhen air is used to cool down the water, radiation effect, conduction and convection effect, and also evaporation effect would occur. The saturation pressure corresponding with the surface temperature is the vapour pressure at the liquid surface. This evaporation process in an enclosed space shall continue until the air is saturated and its temperature equals to the surface. Results in this experiment are identified with the understanding of thermodynamic properties, and calculated by using the specific enthalpy and specific heat capacity, Dalton’s and Gibbs Law, the formula of humidity and saturation, and also the steady flow energy equation. Cooling towers, which are introduced as one of the direct contact heat

## Trig Measurements Lab

872 Words | 4 PagesPK-S Lab 03 – Lab Report Name: ____________________ Section: ___________________ EXPERIMENT 3: Trigonometric Measurements Procedures: 1. Experimental measurement of the angles and sides of a right triangle: A. Create a triangle by taping a string against a wall and taping the bottom of the string to the floor or a table set against the wall. Make sure that the wall is perpendicular to the floor or table by measuring angle C, which should be 90o. B.

## Speed of Sound Lab

1722 Words | 7 PagesSpeed of Sound A. Objective The objective of this laboratory was to measure the speed at which sound was traveling through the air, using the resonance of longitudical waves. B. Equipment Used * Tall glass of water * PVC Pipe, 10 in. * Tape measure, 3 m * Mercury thermometer * Tuning fork, 384 Hz * Marker pencil * Block of wood C. Data Table 1: Tuning fork frequency (Hz) | Length, L Water level to top of the tube (m) | D= diameter of tube (m) | Wavelength=4(L+0.3d)(m) | Room temperature (degrees C) | 384 | 0.218 | 0.020 | 0.896 | 24 | D. Calculations A.

## Geomechanics Lab Report

4935 Words | 20 PagesA straight line approximation for the Mohr-Coulomb failure envelope can then be drawn. The friction angle is thus calculated from the slope of the failure envelope. As with any experiment, the more tests taken for different normal stresses, the more accurate the Mohr-Coulomb failure envelope will be. Experimental Procedure * Weigh the initial mass of soil and record it. * Measure the height, width and length of the shear box and record it.

## Chemistry Solutions Essay

5965 Words | 24 PagesE1. Write an equation to show the equilibrium that exists between NaI(s) and Na+(aq) and I–(aq). AE1. NaI(s) ( Na+(aq) + I–(aq) E2. a Sketch a graph of the change in the radioactivity of the solution over time.

## Determine Mass and Volume

1128 Words | 5 PagesUsing a metric ruler measure the height and diameter of each cylinder in centimeters. 4.) Compute the volume by using the equation - Volume=(∏d^2h)/4. 5.) Record all data in a table and graph the results with the Volume on the x-axis, and the Mass on the y-axis.

### Formal Lab On Hooke's Law

1666 Words | 7 Pages### Determining the Cooling Time Constant for a Block of Steel

465 Words | 2 Pages### Buoyancy Lab Essay

620 Words | 3 Pages### Standing Waves Lab Report

329 Words | 2 Pages### Cooling Tower Demonstrator

1863 Words | 8 Pages### Trig Measurements Lab

872 Words | 4 Pages### Speed of Sound Lab

1722 Words | 7 Pages### Geomechanics Lab Report

4935 Words | 20 Pages### Chemistry Solutions Essay

5965 Words | 24 Pages### Determine Mass and Volume

1128 Words | 5 Pages