A fuel (H/C=1.78, LHV= 43 MJ/kg, MW=180 kg/kmol) is used to operate a diesel engine at an A/F=17. The fuel and air enter at standard conditions (298K) and the exhaust products exit at 800K. The fuel flow into the engine is 3.6 g/s. The power out is 57 kW.

A fuel (H/C=1.78, LHV= 43 MJ/kg, MW=180 kg/kmol) is used to operate a diesel engine at an A/F=17. The fuel and air enter at standard conditions (298K) and the exhaust products exit at 800K. The fuel flow into the engine is 3.6 g/s. The power out is 57 kW.

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

Related questions

Q: 4. A CI engine operating on the air standard diesel cycle, has cylinder conditions at the start of…

Q: Consider the Diesel engine cycle below: 3 V 1-2 Adiabatic. 2-3 Constant-pressure. 3-4 Adiabatic. 4-1…

Q: Q4: An aero engine is using octane C12H24 as a fuel. The temperature of the working fluid at the…

Q: b) If one mole of air (rigid diatomic gas) is initially at 20 °C, is compressed and expanded 7- fold…

A: The initial temperature is The compression ratio is The number of moles of gas is .The heat…

Q: hermodynamic cycle diesel solutions. You need a solution after 30 minutes

Q: where is the injector located in a diesel engine with indirect injection and where is the combustion…

A: An injector is a device that delivers fuel into an internal combustion engine. In a diesel engine…

Q: Describe in your own words the operation of a petrol engine, and explain how it is estimated by the…

A: A petrol engine is a type of internal combustion engine that runs on gasoline as its fuel. It works…

Q: Q7: An automobile has a 3-liter SI V6 engine that operates on a 4-stroke cycle at 3600 rpm and…

Q: An engine working on air-standard dual cycle has compression ratio 9.the pressure and temperature at…

A: Given data as per the question compression ratio = 9 Pressure at beginning =1 bar The temperature at…

Q: In an open cycle constant pressure gas turbine air enters the compressor at 1 bar and 300 K. The…

A: Given data: Here, P1 represents the initial pressure, T1 represents the initial temperature, P2…

Concept explainers

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.

Question

A fuel (H/C=1.78, LHV= 43 MJ/kg, MW=180 kg/kmol) is used to operate a diesel engine at
an A/F=17. The fuel and air enter at standard conditions (298K) and the exhaust products exit
at 800K. The fuel flow into the engine is 3.6 g/s. The power out is 57 kW.
а)
b)
Find x & y for the thermodynamically representative fuel, CxHy.
Find the fuel's heat of formation.
c)
Assuming complete combustion, find the heat loss from the engine, Q (kW).

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The following data belong to a Diesel cycle : Compression ratio - 19 :1; Heat added - 2500 kJ/kg ; Lowest pressure in the cycle - 1 bar ; Lowest temperature in the cycle - 27°c. Determine the percent thermal efficiency of the cycle. Cp = 1.0, k - 1.4, R = 0.287
Describe in your own words the operation of a petrol engine, and explain how it is estimated by the idealised Otto cycle. [Hint: you can make use of one or more diagrams.]
If one mole of air (rigid diatomic gas) is initially at 20 ◦C, is compressed and expanded 7-fold as part of the Diesel cycle, and 4 kJ of heat is generated as a result of the fuel injectionand combustion, calculate: (i) the temperature after each stage of the Diesel cycle; (ii) the heat absorbed/expelled during each stage of the cycle; and (iii) the efficiency of the Diesel cycle.
Explain and contrast the functionality of a two-stroke and four-stroke diesel reciprocating engine. Sketch the main working parts, label them, and describe their functionality. Explain the difference in configuration if the fuel was instead petrol. Describe using sketches the two or four stroke cycle process.
The compression ratio in an air standard Otto cycle is 9. At the beginning of the compression stroke, the pressure is 0.1 MPa and the temperature is 21 C. The heat transfer to the air per cycle is 2000 kJ/kg. Use the PG model for air. I am trying to find the Mean Effective Pressure from this information
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: h) fillout the areas that have kJ only. Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar. Exergy In kJ Disposition of the Exergy: Exergy out: Net Work kJ Heat Rejection kJ Exergy Destroyed 0 kJ Total Exergy(out or destroyed) kJ i) Devise and evaluate the exergetic efficiency for the cycle.
2 A six-cylinder, four-stroke, direct-injection oil engine is to deliver 120 kW at 1600 rpm. The fuel to be used has a calorific value of 43 MJ/kg and its percentage composition by mass is carbon 86.0%, hydrogen 13.0%, non combustibles 1.0%. The absolute volumetric efficiency is assumed to 80%, the indicated thermal efficiency 40% and the mechan- ical efficiency 80%. The air consumption to be 110% in excess of that required for theoretically correct combustion. (i) Estimate the volumetric composition of dry exhaust gas (ii) Determine the bore and stroke of the engine, taking a stroke to bore ratio as 1.5. Assume the volume of 1 kg of air at the given conditions as 0.77 m³. Oxygen in air is 23% by mass and 21% by volume.
2. A four-cycle, 5.866 L engine consumes 19 kg/hr of fuel and 413 kg/hr of air while running under full load at 2,400 rev/min. The air temperature is 24.2°C,and the barometric pressure is 98.13 KPa. Calculate (a.) the air density, (b.) the theoretical air consumption rate, , and (c.) the volumetric efficiency