AUTOMOTIVE TECHNOLOGY TECH MANUAL
7th Edition
ISBN: 9781337794220
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 28, Problem 2TF
True or False? The diesel fuel’s antiknock quality is measured by the cetane rating.
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Air modeled as an ideal gas enters an insulated compressor at a temperature of 300 K and 100 kPa, and leaves at 600 kPa. The mass flowrate of air entering the compressor is 50 kg/hr, and the power consumed by the compressor is 3 kW. (Rair = 0.287 kJ/kg-K, k = 1.4, cp = 1.0045 kJ/kg-K, cv = 0.718 kJ/kg-K)
Determine the isentropic exit temperature (Te,s) of the air in [K].
Determine the actual exit temperature (Te) of the air in [K].
Determine the isentropic efficiency of the compressor. (Answer: ηc,s = 93.3%)
Determine the rate of entropy generated through the compressor in [kW/K]. (Answer: Ṡgen = 0.000397 kW/K)
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Chapter 28 Solutions
AUTOMOTIVE TECHNOLOGY TECH MANUAL
Ch. 28 - Pump gasoline may contain a small amount of...Ch. 28 - List five advantages the use of piezoelectric...Ch. 28 - What does the Reid vapor pressure (RVP) test...Ch. 28 - List three alternative fuels for an internal...Ch. 28 - Why is the sulfur content in gasoline limited?Ch. 28 - What are oxygenates and why are they added to...Ch. 28 - Name three driveability factors that are affected...Ch. 28 - How does SCR lower the content in a diesels...Ch. 28 - Prob. 1TFCh. 28 - True or False? The diesel fuels antiknock quality...
Ch. 28 - True or False? Piezoelectric materials can emit a...Ch. 28 - Which of the following statements about hydrogen...Ch. 28 - Which of the following chemicals is commonly added...Ch. 28 - Technician A says that the use of methanol in...Ch. 28 - Technician A says that reformulated gasoline...Ch. 28 - Technician A says that dedicated vehicles are...Ch. 28 - Technician A says white smoke in the exhaust of a...Ch. 28 - Technician A says piezo material is a type of...Ch. 28 - Prob. 6ASRQCh. 28 - While discussing chemicals that are currently...Ch. 28 - While discussing common rail fuel injection...Ch. 28 - Technician A says diesel engines consume less fuel...Ch. 28 - While discussing the reasons why the use of E85...
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- A metal plate of thickness 200 mm with thermal diffusivity 5.6 x10-6 m²/s and thermal conductivity 20 W/mK is initially at a uniform temperature of 325°C. Suddenly, the 2 sides of the plate are exposed to a coolant at 15°C for which the convection heat transfer coefficient is 100 W/m²K. Determine temperatures at the surface of the plate after 3 min using (a) Lumped system analysis (b) Analytical one term approximation (c) One dimensional Semi infinite solid Analyze and discuss the resultsarrow_forwardProblem 3 This problem maps back to learning objectives 1-4 & 8. Consider the particle attached to a spring shown below. The particle has a mass m and the spring has a spring constant k. The mass-spring system makes an angle of 0 with respect to the vertical and the distance between point 0 and the particle can be defined as r. The spring is unstretched when r = l. Ꮎ g m a) How many degrees of freedom is this system and what are they? b) Derive the equation(s) of motion that govern the movement of this system.arrow_forwardChapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... Scores ■Review Determine the maximum constant speed at which the pilot can travel, so that he experiences a maximum acceleration an = 8g = 78.5 m/s². Express your answer to three significant figures and include the appropriate units. μΑ v = Value Units Submit Request Answer Part B ? Determine the normal force he exerts on the seat of the airplane when the plane is traveling at this speed and is at its lowest point. Express your answer to three significant figures and include the appropriate units. о HÅ N = Value Submit Request Answer Provide Feedback ? Units Next >arrow_forward
- I want to know the Milankovich orbital element constraint equation. Is it e*cos(i) = cos(argp), where e is eccentricity, i is inclination, and argp is arguement of periapsisarrow_forwardThe following data were taken during a one-hour trial run on a single cylinder, single acting, four-stroke diesel engine of cylinder diameter of 175 mm and stroke 225 mm , the speed being constant at 1000 rpm : Indicated mep: 5.5 barsDiam. of rope brake: 1066 mmLoad on brake: 400 NReading of balance: 27 NFuel consumed: 5.7 kgCalorific value: 44.2 MJ/kg Calculate the indicated power, brake power, specific fuel consumption per indicated kWh and per brake kWh , mechanical efficiency, indicated thermal and brake thermal efficiency.arrow_forwardmylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... Document Sharing P Pearson MyLab and Mastering User Settings Part A P Course Home b Success Confirmation of Question Submission | bartleby A particle moves along an Archimedean spiral r = (80) ft, where 0 is given in radians. (Figure 1) If ė = = 4 rad/s and € = 5 rad/s², determine the radial component of the particle's velocity at the instant Express your answer to three significant figures and include the appropriate units. Figure y r = Α ? Vr = Value Units Submit Request Answer Part B Determine the transverse component of the particle's velocity. Express your answer to three significant figures and include the appropriate units. о MÅ ve = Value Submit Request Answer Part C Units ? 1 of 1 Determine the radial component of the particle's acceleration. Express your answer to three significant figures and include the appropriate units. Ar = (80) ft о ΜΑ Value Units ? = π/2 rad.arrow_forward
- Can you help me with a matlab code? I am trying to plot the keplerian orbital elements over time. I would usually find the orbit using cartesian system and then transform into keplerian orbital elements. Is there a way to directly integrate keplerian orbital elements?arrow_forwardmylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Scoresarrow_forwardK mylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Mastering Engineering Back to my courses Course Home Scores Course Homearrow_forwardK mylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Mastering Engineering Back to my courses Course Home Scores Course Homearrow_forwardChapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... Scoresarrow_forwardIn a single cylinder, four stroke, single acting gas engine, the cylinder diameter is 180 mm and the stroke is 350 mm . When running at 250 rpm , the mean area of the indicator diagram taken off the engine is 355 mm² , length of diagram 75 mm , scale of the indicator spring 90 kN/m sq per mm , and the number of explosions was counted to be 114 per minute. Calculate the indicated power. so i have already asked this question and got a good answer, however on step 4, i dont understand how they reached 18.43 KW. When i do the math provided, i get the answer 7195.566. Where am i going wrong? thanks StepsTo clarify how we determined the Indicated Power, I'll go over each step in detail. Step 1: Comprehending the Provided Information - Cylinder diameter (in meters) = 180 mm = 0.18 m - Stroke length (in meters) = 350 mm = 0.35 m - Engine speed = 250 rpm -Indicator diagram mean area = 355 mm² The diagram's length is 75 mm; its spring scale is 90 kN/m² per mm, or 90,000 N/m² per mm; and…arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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