analyze the performance of a gasoline engine at various loads based on data given and to...

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Electrical Engineering

analyze the performance of a gasoline engine at various loadsbased on data given and to determine the torque curve, power curveand performance parameters of BMEP, volumetric efficiency, andAir/fuel ratio, plotting the data vs RPM. Making three graphs: onegraphing Torque and Power.

Also address t

a. How do the torque curve and power curve compare (max values @same RPM)?

b. Is volumetric efficiency constant, or varying with RPM..whatis trend?

c. Is BMEP a constant? Does it compare more with torque or poweroutput?

Board TimeAbsorber RPM-CTorqueBarometerAir Temp.Air FlowAir Flow
secRPMlb-ftPSIFDataCFM
0.015217253.87614.2164345.8634.59
0.030217753.89614.2164347.6534.77
0.050218054.01114.2164342.6334.26
0.070217453.74414.2164343.5634.36
0.090218253.59514.2164349.3134.93
0.110217053.87914.2164342.8434.28
0.131217453.75414.2164344.9634.50
0.151219253.85914.2164349.3134.93
0.171217853.80814.2164344.0134.40
0.188218353.78514.2164346.8634.69
0.206218253.87214.2164344.6234.46
0.226216753.78114.2164342.2334.22
0.246217453.71414.2164347.2634.73
0.266216653.93314.2164341.4734.15
0.286216053.65914.2164343.1834.32
0.306216853.77114.2164348.1234.81
0.326216554.02814.2164342.3034.23
0.340216953.56814.2164345.6934.57
0.356217553.61214.2164346.6434.66
0.376216253.83214.2164340.8234.08
0.396216653.48714.2164345.9634.60
0.416217953.56114.2164347.7734.78
0.436216653.49014.2164342.0334.20
0.456217353.31514.2164348.2234.82
0.476217153.44014.2164342.2334.22
0.492216453.29114.2164344.5134.45
0.511217153.18314.2164346.1434.61
0.531217153.28714.2164341.1534.11
0.551216552.91914.2164343.6234.36
0.571217353.01714.2164348.3434.83

Answer & Explanation Solved by verified expert
3.8 Ratings (694 Votes)
aYou are probably thinking of the formula relating power torqueand rotational speed P T which would imply a linearrelationship between power and torque However the relationship isnot linear because both power and torque also depend directly onthe rotational speedFor example the torque of a permanent magnet DCelectric motor depends linearly on the rotational speedT b awhere b is the torque at zero rotational speed anda is also a constantThis is a straight    See Answer
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