(a) To determine The required electric power. Explanation Express the required electric power. W ˙ electric = − ( V I ) (I) Here, voltage is V and current is I . Conclusion: Substitute 110 V for V and 10 amp for I in Equation (I). W ˙ electric = − ( 110 V (b) To determine The power developed by the output shaft. (c) To determine The average temperature T s , if heat transfer occurs by convection to the surroundings.

Fundamentals of Engineering Thermodynamics, Binder Ready Version

8th Edition

ISBN: 9781118820445

Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

Publisher: WILEY

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Chapter 2.7, Problem 62P

(a)

To determine

The required electric power.

(b)

To determine

The power developed by the output shaft.

(c)

To determine

The average temperature Ts, if heat transfer occurs by convection to the surroundings.

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Chapter 2.7, Problem 61P

Chapter 2.7, Problem 63P

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Given answers to be: i) 14.65 kN; 6.16 kN; 8.46 kN ii) 8.63 kN; 9.88 kN iii) Bearing 6315 for B1 & B2, or Bearing 6215 for B1

(b) A steel 'hot rolled structural hollow section' column of length 5.75 m, has the cross-section shown in Figure Q.5(b) and supports a load of 750 kN. During service, it is subjected to axial compression loading where one end of the column is effectively restrained in position and direction (fixed) and the other is effectively held in position but not in direction (pinned). i) Given that the steel has a design strength of 275 MN/m², determine the load factor for the structural member based upon the BS5950 design approach using Datasheet Q.5(b). [11] ii) Determine the axial load that can be supported by the column using the Rankine-Gordon formula, given that the yield strength of the material is 280 MN/m² and the constant *a* is 1/30000. [6] 300 600 2-300 mm wide x 5 mm thick plates. Figure Q.5(b) L=5.75m Pinned Fixed

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Chapter 2 Solutions

Fundamentals of Engineering Thermodynamics, Binder Ready Version

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Ch. 2.7 - Prob. 11E Ch. 2.7 - Prob. 12E Ch. 2.7 - 13. What form does the energy balance take for an...Ch. 2.7 - 14. What forms of energy and energy transfer are...Ch. 2.7 - Prob. 15E Ch. 2.7 - 16. Steve has a pedometer that reads kilocalories...Ch. 2.7 - Prob. 17E Ch. 2.7 - Prob. 1CU Ch. 2.7 - Prob. 11CU Ch. 2.7 - Prob. 12CU Ch. 2.7 - Prob. 13CU Ch. 2.7 - Prob. 14CU Ch. 2.7 - 15. In mechanics, the work of a resultant force...Ch. 2.7 - 16. What direction is the net energy transfer by...Ch. 2.7 - 17. The differential of work, δW, is said to be an...Ch. 2.7 - Prob. 18CU Ch. 2.7 - Prob. 19CU Ch. 2.7 - Prob. 20CU Ch. 2.7 - Prob. 21CU Ch. 2.7 - Prob. 22CU Ch. 2.7 - Prob. 23CU Ch. 2.7 - Prob. 24CU Ch. 2.7 - Prob. 25CU Ch. 2.7 - 26. State the sign convention used in...Ch. 2.7 - Prob. 27CU Ch. 2.7 - Prob. 28CU Ch. 2.7 - Prob. 29CU Ch. 2.7 - 30. Based on the mechanisms of heat transfer, list...Ch. 2.7 - Prob. 31CU Ch. 2.7 - Prob. 32CU Ch. 2.7 - 33. The total energy of a closed system can change...Ch. 2.7 - 34. The energy of an isolated system can only...Ch. 2.7 - 35. If a closed system undergoes a thermodynamic...Ch. 2.7 - Prob. 36CU Ch. 2.7 - Prob. 37CU Ch. 2.7 - Prob. 38CU Ch. 2.7 - Prob. 39CU Ch. 2.7 - Prob. 40CU Ch. 2.7 - Prob. 41CU Ch. 2.7 - 42. A process that is adiabatic cannot involve...Ch. 2.7 - Prob. 43CU Ch. 2.7 - Prob. 44CU Ch. 2.7 - Prob. 45CU Ch. 2.7 - Prob. 46CU Ch. 2.7 - 47. A rotating flywheel stores energy in the form...Ch. 2.7 - Prob. 48CU Ch. 2.7 - Prob. 49CU Ch. 2.7 - 50. If a closed system undergoes a process for...Ch. 2.7 - Prob. 51CU Ch. 2.7 - Prob. 52CU Ch. 2.7 - Prob. 53CU Ch. 2.7 - Prob. 54CU Ch. 2.7 - 2.1 A baseball has a mass of 0.3 lb. What is the...Ch. 2.7 - 2.2 Determine the gravitational potential energy,...Ch. 2.7 - 2.3 An object whose weight is 100 lbf experiences...Ch. 2.7 - 2.4 A construction crane weighing 12.000 lbf fell...Ch. 2.7 - 2.5 An automobile weighing 2500 lbf increases its...Ch. 2.7 - 2.6 An object of mass 1000 kg, initially having a...Ch. 2.7 - 2.7 A 30-seat turboprop airliner whose mass is...Ch. 2.7 - 2.8 An automobile having a mass of 900 kg...Ch. 2.7 - 2.9 Vehicle crumple zones are designed to absorb...Ch. 2.7 - 2.10 An object whose mass is 300 lb experiences...Ch. 2.7 - Prob. 11P Ch. 2.7 - 2.12 Using KE = Iω2/2 from Problem 2.11a, how fast...Ch. 2.7 - 2.13 Two objects having different masses are...Ch. 2.7 - 2.14 An object whose mass is 100 lb falls freely...Ch. 2.7 - 2.15 During the packaging process, a can of soda...Ch. 2.7 - 2.16 Beginning from rest, an object of mass 200 kg...Ch. 2.7 - 2.17 Jack, who weighs 150 lbf, runs 5 miles in 43...Ch. 2.7 - 2.18 An object initially at an elevation of 5 m...Ch. 2.7 - 2.19 An object of mass 10 kg, initially at rest,...Ch. 2.7 - 2.20 An object initially at rest experiences a...Ch. 2.7 - 2.21 The drag force, Fd, imposed by the...Ch. 2.7 - 2.22 A major force opposing the motion of a...Ch. 2.7 - 2.23 The two major forces opposing the motion of a...Ch. 2.7 - 2.24 Measured data for pressure versus volume...Ch. 2.7 - 2.25 Measured data for pressure versus volume...Ch. 2.7 - 2.26 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.27 Carbon dioxide (CO2) gas within a...Ch. 2.7 - 2.28 A gas in a piston-cylinder assembly undergoes...Ch. 2.7 - 2.29 Nitrogen (N2) gas within a piston-cylinder...Ch. 2.7 - 2.30 Oxygen (O2) gas within a piston-cylinder...Ch. 2.7 - 2.31 A closed system consisting of 14.5 lb of air...Ch. 2.7 - 2.32 Air contained within a piston-cylinder...Ch. 2.7 - 2.33 A gas contained within a piston-cylinder...Ch. 2.7 - 2.34 Carbon monoxide gas (CO) contained within a...Ch. 2.7 - 2.35 Air contained within a piston-cylinder...Ch. 2.7 - 2.36 The belt sander shown in Fig. P2.36 has a...Ch. 2.7 - 2.37 A 0.15-m-diameter pulley turns a belt...Ch. 2.7 - 2.38 A 10-V battery supplies a constant current of...Ch. 2.7 - 2.39 An electric heater draws a constant current...Ch. 2.7 - 2.40 A car magazine article states that the power...Ch. 2.7 - 2.41 The pistons of a V-6 automobile engine...Ch. 2.7 - 2.42 Figure P2.42 shows an object whose mass is 5...Ch. 2.7 - Prob. 43P Ch. 2.7 - 2.44 A soap film is suspended on a wire frame, as...Ch. 2.7 - 2.45 As shown in Fig. P2.45, a spring having an...Ch. 2.7 - 2.46 A fan forces air over a computer circuit...Ch. 2.7 - 2.47 As shown in Fig. P2.47, the 6-in.-thick...Ch. 2.7 - 2.48 As shown in Fig. P2.48, an oven wall consists...Ch. 2.7 - 2.49 A composite plane wall consists of a...Ch. 2.7 - 2.50 A composite plane wall consists of a...Ch. 2.7 - 2.51 An insulated frame wall of a house has an...Ch. 2.7 - 2.52 Complete the following exercise using heat...Ch. 2.7 - Prob. 53P Ch. 2.7 - Prob. 54P Ch. 2.7 - 2.55 The outer surface of the grill hood shown in...Ch. 2.7 - 2.56 Each line of the following table gives data...Ch. 2.7 - 2.57 Each line of the following table gives data,...Ch. 2.7 - 2.58 A closed system of mass 10 kg undergoes a...Ch. 2.7 - Prob. 59P Ch. 2.7 - 2.60 A gas contained in a piston−cylinder assembly...Ch. 2.7 - 2.61 A gas contained within a piston−cylinder...Ch. 2.7 - 2.62 An electric motor draws a current of 10 amp...Ch. 2.7 - 2.63 As shown in Fig. P2.63, the outer surface of...Ch. 2.7 - 2.64 One kg of Refrigerant 22, initially at p1 =...Ch. 2.7 - 2.65 A gas is contained in a vertical...Ch. 2.7 - 2.66 A gas undergoes a process in a...Ch. 2.7 - 2.67 Four kilograms of carbon monoxide (CO) is...Ch. 2.7 - 2.68 Helium gas is contained in a closed rigid...Ch. 2.7 - 2.69 Steam in a piston−cylinder assembly undergoes...Ch. 2.7 - 2.70 Air expands adiabatically in a...Ch. 2.7 - 2.71 A vertical piston−cylinder assembly with a...Ch. 2.7 - 2.72 Gaseous CO2 is contained in a vertical...Ch. 2.7 - 2.73 Figure P2.73 shows a gas contained in a...Ch. 2.7 - 2.74 The following table gives data, in kJ, for a...Ch. 2.7 - 2.75 The following table gives data, in Btu, for a...Ch. 2.7 - 2.76 Figure P2.76 shows a power cycle executed by...Ch. 2.7 - 2.77 A gas within a piston−cylinder assembly...Ch. 2.7 - 2.78 A gas within a piston-cylinder assembly...Ch. 2.7 - 2.79 A gas undergoes a cycle in a piston-cylinder...Ch. 2.7 - 2.80 As shown in Fig. P2.80, a gas within a...Ch. 2.7 - Prob. 81P Ch. 2.7 - Prob. 82P Ch. 2.7 - Prob. 83P Ch. 2.7 - Prob. 84P Ch. 2.7 - 2.85 A concentrating solar collector system, as...Ch. 2.7 - Prob. 86P Ch. 2.7 - Prob. 87P Ch. 2.7 - Prob. 88P Ch. 2.7 - 2.89 A refrigeration cycle operating as shown in...Ch. 2.7 - Prob. 90P Ch. 2.7 - Prob. 91P Ch. 2.7 - Prob. 92P Ch. 2.7 - Prob. 93P Ch. 2.7 - Prob. 94P Ch. 2.7 - 2.95 A heat pump maintains a dwelling at 688F....Ch. 2.7 - 2.96 A heat pump cycle delivers energy by heat...

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