4-6-SIA six-liter, eight-cylinder, four- Stroke cyclerace car engine operates at 6000 RPM using stoichio-metric nitromethane as fuel. Combustion efficiency.is 99%, and the fuel input rate is 0.198 kg/see.a- Volumetric efficiency of the engine [!]b-Flow rate of air into the engine. [ kg/sec.:]Calculate :

Given, Four stroke n = 2 Volume Vd = 6 litre = 0.006 m3 N = 6000 rpm m˙f=0.198 kg/s

A six-liter, eight-Cylinder, four- Stroke cycle SI Ice car engine operates at 6000 RPM using stoichio- metric nitromethane as fuel. Combustion efficiency = 99%, and the fuel input rate is 0.198 kg/see. Calculate: a- Volumetric efficiency of the engine [1] b-Flow rate of air into the engine. [ kg / sec.]

A six-liter, eight-Cylinder, four- Stroke cycle SI Ice car engine operates at 6000 RPM using stoichio- metric nitromethane as fuel. Combustion efficiency = 99%, and the fuel input rate is 0.198 kg/see. Calculate: a- Volumetric efficiency of the engine [1] b-Flow rate of air into the engine. [ kg / sec.]

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

See similar textbooks

Similar questions

Fig.1 shows the diesel engine cycle. It is very similar to the Otto cycle (presented in thetextbook), but with two important differences. First, the fuel is not added until the air is fully compressed at point 2.This is because at the end of adiabatic compressionthe fuel begins to burn spontaneously (there are no spark plugs in a diesel engine).Second, combustion occurs more slowly and with the fuel being injected continuously.This characterizes the ignition stage as a constant pressure process. The cycle shown inFig.1 has an expansion Vmax - Vmın of 1000 cm^3and compression ratio r = Vmax/Vmın = 21.These are typical values for a diesel-powered truck. The engine operates with air intake(γ = 1, 4) at 25°C and 1 atm. The amount of fuel injected into the cylinder has a heat ofcombustion of 1000 J.a. Find the value of p, V, and T, for each of the vertices of the cycle. Finally, arrange yourresult in a table format.b. What is the total work done by the cylinder in one complete cycle?c. What…
intake valve v) vi) intake compression How Tuel injector power lo egiteqo190 the number of molecules in the cylinder the internal energy of the gas; the work done on or by the gas; the thermal energy exchanged with the environment. exnaust vaive The diagrams show the cylinder of a petrol engine in 4 stages. Petrol vapour and air are drawn into the cylinder, The mixture is then squeezed together, and then exploded by a spark. The explosion pushes down the piston. The exhaust gases are then expelled from the cylinder. pril Use the first law of thermodynamics to analyse the energy changes during the process. At each stage explain what happens to the gas exhaust 0101
5. A four stroke gas engine develops 4.2 kW at 180 r.p.m. and at full load. Assuming the follow- ing data, calculate the relative efficiency based on indicated power and air-fuel ratio used. Volumetric efficiency = 87%, mechanical efficiency = 74%, clearance volume = 2100 cm³, swept volume = 9000 cm" fuel consumption = 5 m³/h, calorific value of fuel = 16750 kJ/m³ [Ans. 50.2%, 7.456: 1]
rue / False] 5. The theoretical maximum power efficiency of any design of wind turbine is 0.95. [True/False] 6. In a HAWT, upwind rotor need a yaw drive to mechanically pivot the rotor as wind direction changes. [True/false] 7.
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 kРа 124.38 mfmep kPa 29.52 amep kРa Calculate the net indicated mean effective pressure at the same engine speed.
bore and stroke of the fuel pump. 2. A 4-cylinder, 4-stroke, diesel engine, has the following parameters: brake power 100 hp, engine speed = 25 r.p.s, b.s.f.c. = 213 g/kW.hr, fuel density = 0.85 g/cm³, a = 1.2, and z = 1.25. Calculate: (i) Volume of fuel injected for one cylinder. (ii) Bore and stroke of the fuel pump. 3. A 4-stroko
Q5/The plot of the engine cycle on P-V coordinates is often called * power indicator pressure enthalpy daigram force time daigram indicator diagram Q6/In IC engine the work is generated by the gasses in the combustion chamber is * directly proportional to piston travel inversely proportional to piston travel does not depend on piston travel all of above Q7/The gas pressure force is a function of * velocity piston acceleration piston piston travel the power out put docs.google.com A
20 Cylinder conditions at the start of compression of a four-stroke cycle SI engine are 27 C and 100 kPa. The engine has a compression ratio of r = 8:1, and heat addition from com- bustion is q = 2000 kJ/kg. Calculate: (a) Temperature and pressure at each state of the cyde, using air-standard Otto cycle analysis with constant specific heats. [°C, kPa] (b) Indicated thermal efficiency in part (a). [%] (c) Temperature and pressure at cach state of the cyde, using any standard air tables that are based on variable specific heats as functions of temperature (e.g., reference (73]). [°C, kPa] (d) Indicated thermal efficiency in part (c). [%]
17.21 Determine the cylinder diameter and stroke length for a 8 cylinder, single acting, 2-stroke diesel engine for which details of engine and indicator diagram are as under; Indicated power = 16266.7kW Speed L:D ratio = 1.5 150 грm Area of indicator diagram Length of diagram 550 mm2 %3! 60 mm Indicator spring constant 14.7 × 10’ Pa per m [80 cm, 120 cm]
A CI engine with a compression ratio of 18:1 operates on an air-standard diesel cycle at3200 RPM. Maximum temperature and pressure in the cycle are 2527°C and 6500 kPa, andexhaust pressure is 100 kPa. Cylinder pressure is 530 kPa when the exhaust valve opens at48° bBDC.Calculate:(a) Time of one blowdown process. [sec](b) Average temperature of exhaust during exhaust stroke. [°C](c) Velocity of exhaust gas through the exhaust valve at start of blowdown. [m/sec
[MO32] GAS CYCLES A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100 MW to an electric generator. The minimum temperature in the cycle is 300 K, and the exhaust temperature is 750 K. The minimum pressure in the cycle is 100 kPa, and the compressor pressure ratio is 14:1. (k = 1.4) Calculate the power output of the turbine. What fraction of the turbine output is required to drive the compressor? What is the thermal efficiency of the cycle? A. 0.4, 0.529, 166.85 MW B. 0.9, 0.729, 166.85 MW C. 0.7, 0.329, 166.85 MW D. 0.3, 0.629, 166.85 MW
a) Why should the piston speed be limited in a range between (5 - 15) [m/s]? b) What are the main differences between four stroke and two stroke engines? c) Why always in production of engines the inlet valves are larger than exhaust valves? d) What are the main differences between Otto and Diesel Cycles?