Q6: A single cylinder oil engine has a compression ratio of 1081. The specific fuel consumption is 0.6 kg/kw.h, the calorific value of the fuel oil is 44000kj/kg.199calculate the thermal efficiency and the relative efficiency, assuming the engineoperates on the constant volume cycle. Take 8=1.4 for airAnswers [13.6%22.6%]2199

Final Answers:Thermal Efficiency: 13.6%Relative Efficiency: 22.6%

Answered: Q6: A single cylinder oil engine has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The Fifth Question: A six-cylinder, 4-stroke petrol engine develops 62 H.P at 3000 r.p.m. The volumetric efficiency at N.T.P. is 85%. The bore is equal to the stroke and thermal efficiency of 25 % may be assumed. Calorific value of petrol is 44100 kj/kg. Air-fuel ratio is to be 15:1. Calculate the cylinder bore and stroke.
4. Draw a figure or graph that will support the problem. Explain each step by step formula.
Sketch and explain a PV Diagram and a Temperature Entropy Diagram for a 4 stroke diesel engine please, please explain into detail the difference bewteen the two and referance the a diagram. Please include a sketch or an image of each diagram
Sketch the air-standard otto ott Diesel cycle on P-V and T-S diagrams. Two engines are to operate on Otto and diesel cycles with the following data; Maximum temperature 1400K, exhaust temperature 700K, state of air at the beginning of compression is 0.1 Mpa and 300k. Compare for 1kg/min of air for respective cycles; i) Compression ratios ii) Maximum pressures iii) Thermal efficiencies iv) Rate of work output
Please answer
An ideal Otto engine with 15 clearance (15% of the volume displacement) operates on 0227kg/s of air intake is 100.58kPaa, 37.7 C The energy released during combustion is 110kW. For air standard cycle, compute (a) Pressure (kPaa), Volume (m/s) and Temperature (€) in each state point of the cycle (b) work produced by the cycle (kW). (c) thermal efficiency () and (d) the mean effective pressure of the cycle (kPa)
Provide a complete and logical solution for each problem. If linear interpolation is required in the problem, tabulated values is considered as a solution. Also, provide T-S or P-V diagrams for each problem 1. An ideal otto cycle engine with 15% clearance operates on 0.227 kg/s of air: intake state is 100.58 kPa, 37.7°C. The energy released during combustion is 110 kJ/s. For hot-air standard, with k = 1.32, compute: a. Pat each point in kPa b. T at each point in K c. V at each point in m d. Efficiency of the cycle 2. For a Rankine Cycle, steam at 5 MPa, 450°C expands to 0.036 MPa. For 10 kg/s of steam, determine: a. Heat added b. Heat rejected c. Work of turbine d. Thermal Efficiency
A six cylinder petrol engine has a compression ratio of 5:1. The clearance volume of each cylinder is 110CC. It operates on the four-stroke constant volume cycle and the indicated efficiency ratio referred to air standard efficiency is 0.56. At the speed of 2400 rpm. 44000KJ/kg. Determine the consumes 10kg of fuel per hour. The calorific value of fuel average indicated mean effective pressure.
I only need help with parts e to i. At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a) the volume at state 1.b) the air mass per cycle.c) the heat addition per cycle, in kJ.d) the heat rejection per cycle, in kJ.e) the net work per cycle, in kJ.f) the thermal efficiency.g) the mean effective pressure, in bar.h) Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar.i) Devise and evaluate the exergetic efficiency for the cycle.
I only need help with parts g to i. At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a) the volume at state 1.b) the air mass per cycle.c) the heat addition per cycle, in kJ.d) the heat rejection per cycle, in kJ.e) the net work per cycle, in kJ.f) the thermal efficiency in %.g) the mean effective pressure, in bar.h) Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar.i) Devise and evaluate the exergetic efficiency for the cycle.
The following data refer to a 12-cylinder, single-acting, two-stroke marine diesel engine:Speed: 150 rpmCylinder diameter: 0.8mStroke of piston: 1.2 mArea of indicator diagram: 5.5x 10-4 m2Length of diagram: 0.06 mSpring value: 147 MPa per mFind the net rate of work transfer from the gas to the piston in kW.
(8) An SI, six-liter, V8 race car engine operates at WOT (wide open throttle) on a four- stroke cycle at 6000 r.p.m. using stoichiometric nitromethane. fuel enters the engine at a rate of 0.198 kg and combustion efficiency is 99%. calculate: (a) Volumetric efficiency of engine. (%) sec (b) flow rate of air into engine. (ke sec (c) Heat added per cycle per cylinder. (kj) ANS: (a) 95, (b) 0.337, (c)5.35

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