Lab 12

12:38 O MENG470 - Assi... Engine friction a) Explain what do these terms mean: fmep, mfmep, pmep, amep, imep, bmep b) Write the equation relating fmep to mfmep, pmep, and amep; c) Write the equation relating fmep to imep and bmep; d) At a given engine speed, the following parameters are obtained as follows: 1600 bmep kPa 228.45 fmep kPa 124.38 mfmep kPa 29.52 amep kPa Calculate the net indicated mean effective pressure at the same engine speed. II

5) Which statement is true about the friction factor in the Moody diagram (shown below). Moody Diagram 0.1 0.09 Transition Region 0.08 0.07 0.05 0.04 0,06 0.03 0.05 0.02 0.04 0.015 0.01 0.03 0.005 0.002 0.001 5x10-4 2x10-49 10-4 5x10-5 10-5 5x10-6 10-6 Friction Factor 12---- Laminar Flow 64 Material Concrete, coarse 0.25 0.025 Concrete, new smooth Drawn tubing 0.0025 Glass, Plastic Perspex 0.0025 Iron, cast 0.15 Sevens, old 3.0 0.1 Steel, mortar lined Steel, rusted 0.5 Stoel, structural or forgod 0.025 Water mains, old Friction Factor=AP. 1.0 Smooth Pipe 3000 10³ 10¹ 105 106 107 108 Reynolds Number, Re - Vd P a) The lines for different relative roughness in the turbulent regime correspond to Darcy-Weisbach model b) The lines for different relative roughness in the turbulent regime correspond to Nikuradse model c) The lines for different relative roughness in the turbulent regime correspond to Hazen-Williams model d) The lines for different relative roughness in the turbulent regime…

1 A gasoline engine working on four stroke develops a brake power of 20.9 kW. A Morse Test was conducted on this engine and the brake power (kW) obtained when each cylinder was made inoperative by short cir- cuiting the spark plug are 14.9, 14.3, 14.8 and 14.5 respectively. The test was conducted at constant speed. Find the indicated power, me- chanical efficiency and bmep when all the cylinders are firing. The bore of the engine is 75 mm and the stroke is 90 mm. The engine is running at 3000 rpm.

this problem is related to ic engine .please the numerical problem

Handwritten solution required. Strictly don't use chatgpt. If you use chatgpt ,I will report the answer for sure.

Can you help with question2

Engine Type Four cylinder Four stroke MPFI petrol engine(Maruti Zen), Bore: 0.072 m, Stroke: 0.061m Capacity: 993 cc, Power: 60 HP at 6000 rpm, Torque: 78.5 Nm at 4500 rpm and Compression Ratio :9.4:1. Explain how to calculate :- (1) Mechanical Efficiency (2) Brake Thermal Efficiency (3) Indicated Specific Fuel Consumption

Find out the a.) Acceleration, b.) Speed at the 3.0s mark, and c.) Displacement at the 3.0s mark. Given the following initial conditions initial velocity=0 mass=5kg, static friction coefficient=0.4 kinetic friction coefficient=0.2, and angle of inclination =30degree

1 The following observations are recorded during a test on a four-stroke petro engine, F.C = 25cc of fuel in 10 sec, speed of the engine is 2600 rpm, B.P = 22 kW, Qair 0.00134 m, piston diameter 90 mm, density of the fuel = 0.85gm/cc , compression ratio = 7.5, CV of fuel = 42000KJ/Kg, room temperature = 24 °C %3D = 140mm, stroke length = %3D %3D %3D 2 A six-cylinder 4-stroke cycle petrol engine is to be designed to develop 250 kW of (b.p) at 2200 rpm the stroke / bore ratio is to be 1.3:1. Assuming nm =80% and an indicated mean effective pressure of 9.5 bar, determine the required bore and stroke. If the compression ratio of the engine is to be 7.5 to 1, determine consumption of petrol in kg/h and in kg/bp.hr. Take the ratio of the indicated thermal efficiency of the engine to that of the constant volume air standard cycle as 0.65 and the calorific value of the petrol as; 44770KJ/kg.

Use Matlab

Problem Solving: )An object falls from rest in a medium offering a resistonce. The velocity of the object hefore the ohject reaches the ground is given by the differential egua- tion dv/t + V% = 32, t/sec. uhat is the veloaty of the okject one second after it falls ?

V1

Find the Fthrust and Frictional force using the following info attached  gr 11  MAss of 4 full engines - 42.13g empty engines- 75.65g

SCH 08 HW PSS 8.1: Static equilibrium problems To practice Problem Solving Strategy 8.1 Static equilibrium problems. When you at an object by moving only your forearm, the main lining muscle in your arm is the biceps. Suppose the mass of a forearm is 1.20 kg. If the biceps is connected to the forearm a distance du-3.50 cen from the elbow, how much force F must the biceps exert to hold a 750 g bal at the end of the forearm at distance du 30.0 ctn from the elbow, with the torearm parallel to the floor? How much force F must the elbow exert? (Doute 1) Figure dap Biceps Soull 1 of 1 Evaluate whether the answer you obtained for the force exerted by the biceps is reasonable ▾ Part J VAX Although it is uncommon, orthopedic surgeons have seen patients who have tom their biceps tendon when forces of greater than 390 N have been exeded on the tendon with the arm bent at the elbow so that the forearm is parallel to the ground. What is the minimum mass of a ball Af such a patient might have held…

Q3) The following reading was taken from the performance test of single cylinder four-stroke engine with 250 mm bore and 400 mm stroke: indicated mep 7.5 bar, engine speed 250 rpm, net load on the brake 1080 N, effective diameter of the brake 1.5 m, fuel used per hour 10 kg, calorific value of the fuel 44300 kK/kg. calculate : (1) Indicated power (2) Brake power (3) Mechanical efficiency (4) Indicated thermal efficiency State any necessary assumptions for your analysis. 1)

Kinematics pls put clear solution ty

How do I find the work done by friction in the problem? Will there be thermal energy conserved?

You want to put larger tires on your truck. The manufacturer tires are P265/65R18. You want to upgrade to P285/75R19. Complete the information below for each tire size. Please upload a picture//file of your work.

Hi! Pleaseee answer with complete solution, pv and ts diagrams. Thanks!! ❤️

ANSWERS: P=57.14N , Q=42.86N , C=227.13 Nm

Note: The given below question is already fully solved just take a one review and make the schematic diagram for this question: A four-stroke SI engine 0.08 m bore (d), 0.10 m stroke (L), is tested at full throttle at constant speed. The fuel supply is fixed at 0.0011333 kg/s and the spark plugs of the four cylinders are successively short circuited without change of speed, brake torque  being correspondingly adjusted. The brake power (bp) measurements are the following:With all cylinders firing = 12.5 kWWith cylinder No. 1 cut off = 9 kWWith cylinder No. 2 cut off = 9.15 kWWith cylinder No. 3 cut off = 9.2 kWWith cylinder No. 2 cut off = 9.1 kWThe lower calorific (or heating value, LCVf) of the fuel is 44100 kJ/kg. The clearancevolume (Vcl) of one cylinder 70.0 x 103 mm3. Determine:(a) Indicated power (ip) of the engine under these conditions.(b) The indicated thermal efficiency (c) The relative efficiency of this engine.   Given data  bore (d)  = 0.08 m  stroke (L) = 0.10 m  fuel…

2. For Pump Omicron, the pump performance data is shown in Table 2 below. Plot a curve of best fit Havailable versus Q from 0 Lpm to 30 Lpm. State the equation represented by the curve. On the same graph, plot the Hrequired versus Q and indicate the operating point. Table 2: Pump Omicron performance data Q (LPM) H (m) 0 46.5 46 42 37 29 16.5 0.0 5 10 15 20 25 30

For my assigment, I was asked to design a electric motorbike that has a peformance equal to Honda CBR1000 Fireblade which has a petrol engine. A part of the the assignment is to calculate " An estimate of maximum Power your new motor will need to generate to match the Honda’s performance." I can make the assumption, apart from changing the motor, everything else is going to stay the same so the fairing,the rider and etc they're gonna be the same for the two bikes. So can you please tell me how I can calculate that which information would I need ?

As a mechanical engineer, you were asked by your supervisor to monitor the operation of 4-stroke engine; as a result you got the following readings: > Imep = 780 kN/ m2 > Engine speed = 800 rpm > Brake Power 30 kW %3D %3D > nm = 85 % > B/S 0.7 You noticed also, that the inlet valve opens 10° before TDC and closes40° after BDC and it takes 0.0035 second after ignition for the charge to gain maximum pressure. Depending on the above readings, find the following engine parameters: a. The crank angle when the spark occursfor the maximum pressure to be at TDC b. The time period in second of inlet valve opening during one cycle c. The diameter of the engine d. The average piston speed 1 Upload file

NOTE: Do not solve the whole numerical.I only want the simplified schematic diagram of the plant showing all the necessary data displayed on it.

solve and show each step in solution

Please assist me.  I got stuck trying to calculate Te.

1. The following data were obtained on a gasoline engine operating in a pronymbrake. Engine speed: 600 rpm Torque: 1,700 ft-lbf Fuel consumption: 12.1 gal/hr a. Compute the brake horsepower. b. Compute the overall engine efficiency