Question: A gas engine working on the constant-volume cycle gave the following results during a one- hour test run: Cylinder diameter: 24 cm, Stroke: 48

A gas engine working on the constant-volume cycle gave the following results

A gas engine working on the constant-volume cycle gave the following results during a one- hour test run: Cylinder diameter: 24 cm, Stroke: 48 cm, Torque: 770 Nm, Mep: 7.5 bar, Average speed: 220 rpm, Average explosion per minute: 77 (= n*K), Gas consumption: 8 kg/h, Lower heating value: 43 MJ/kgfuel, Inlet and outlet temperature of cooling water: 25 C and 60 C respectively, Cooling water used: 600 kg Water specific heat: 4.18 kJ/kg K. Determine: 1) The mechanical efficiency, 2) Indicated thermal efficiency, 3) Draw up a heat balance for the engine on minute basis - MJ/min- (Qf, Qe, Qw).

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mechanical Engineering Questions!

For each statement about Reconciling a Bank Account, select Yes if it is accurate, or No if it is not. 0000 The first step in reconciling accounting software to a bank account is to obtain a copy of...

a) Consider the two-dimensional velocity vector fields: V = [-y, x, 0] V = [2,-1,0] Evaluate the vector components of V and V using at least four points per field. Sketch the streamlines of each flow...

a. Example 13-1: Batch Reactor with an Exothermic Reaction Wolfram 1. Adiabatic Case: Use Wolfram to see whether you can find a trajectory that is ready to ignite and whose trajectory looks like a...

Find attached Ingredients: Water, MCC, Salt, Nicotine, pH regulator, sweeteners and flavours I am wondering why the decision to go with LYFT. I understand migrating to LYFT would be easier from sells...

Q. Explain the factors behind GE's decline in financial performance from 2016 to 2018. * Case 20 can be found in the below book: Contemporary Strategy Analysis 10 th edition - for Robert M. Grant...

A gas engine working on ideal Otto cycle has a compression ratio of 6.1. The pressure and temperature at the commencement of compression are 1 bar and $27^{\circ} \mathrm{C}$. The heat supplied...

The compression curve of a certain gas engine working on an air - standard Otto cycle follows the law pv ? 1 . 3 = constant. At two points on the curve at 1 4 th stroke and 3 4 th stroke, the...

The compression curve of a certain gas engine working on an air - standard Otto cycle follows the law pv 1 . 3 = constant. At two points on the curve at 1 4 th stroke and 3 4 th stroke, the pressures...

A supervisor's span of control refers to? The ability to control workers who are no sufficiently motivated The supervisor's ability to handle difficult employees The supervisor's ability to oversee...

Solve the following question using the Gauss-Jordan Row Reduction Method. (-2)2+(-8)y+ (-6)z - 48 (3)z + (0)y+ (9)z = 24 (8)z + (1)y + (7)z = -26 Answer:

Ar-Cee Hobbies (ACH) is a retail chain that sells remote-control race cars, better known as RC cars. Their most popular product is the Lightening STK which is equipped with on-road racing tires and...

Technology and automation have significantly affected resource management in recent years. Explain how leaders can leverage technology to optimize both human and capital resources while ensuring...

You are the audit senior in charge of the audit of Sagebrush Corporation, a retailer. You are now preparing to assess their internal controls in the area of purchases and acquisitions. Provide a...

What are stakeholders and provide examples of who would work on an HRD project with you?

Mars-Venus Company has forecast credit sales for the fourth quarter of the year as: September (actual)............................ ....................................................... $50,000...

What do you think explains the relatively poor recent record for unions attempting to organize large bargaining units?

Design a minimum-mass symmetric three-bar truss (the area of member 1 and that of member 3 are the same) to support a load P, as was shown in Fig. 2.9. The following notation may be used: Pu = P cos...

15.18 Comparing smartphone sales Refer to the previous exercise. a. Would the results of your analysis change if the second value under the sales with discount column be 9 instead of 25? What does...

15.13 Does exercise help blood pressure? Exercise 10.50 in Chapter 10 discussed a pilot study of people who suffer from abnormally high blood pressure. A medical researcher decides to test her belief...

15.16 Use all data on cell phones Refer to the previous exercise. When we use the data for all 32 subjects, MINITAB reports result in the following for the Wilcoxon signedranks test. a. State the...