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A transmission case measures
If the transmission efficiency is
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Chapter 1 Solutions
Introduction to Heat Transfer
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- For the conditions shown, respond to the following questions and statementsconcerning application of the control volume equation to the continuity principle.arrow_forwardPlease don't provide handwritten solution .....arrow_forwardWhile using the Heisler charts for a cylinder at time t = 10 sec and at a radial location of r/ro=0.6 =0.8 and Q/Qo= 0.7 where 0=T-T 0.=T.-T and 0 =T -T o o and Qo = PCPV(T¡-T∞) =0.4; 00 00 If the parameters associated with the cylinder are p=2700 kg/m and C =900 J/kg.C and volume of 1 m long cylinder = 0.1 m3 Calculate the maximum possible heat transfer from the cylinder to the environment per unit length of the cylinder if = 20°C; and T = 55 C T 00 Write only the numerical value after converting the unit in J/m.arrow_forward
- between two concentric spherical sheets there is air. The inner spherical sheet has a radius of 10 cm and is filled with ice at 0 ° C, the outer spherical sheet has a radius of 10.05 cm and is at a temperature of 15 ° C. What amount of heat will be transmitted from one sheet to another by conductivity ends in 1/4 hour ?. Considering that the air is pressurized, it is considered to be 15 N / m ^ 2 and at a temperature of 2 ° C. The diameter of the air molecules is taken equal to 3 x 10 ^ -10 m. the molar mass of air is taken equal to 29 g / mol; Boltzman's constant k = 1.38 x 10 ^ -23 J / Karrow_forwardBased on Figure 3. Use the D'Alembert's principle to determine the following knowing that the coefficient of friction p=0.2, 0-45°, and the acceleration of gravity g-9.81 m/s². You have to show the free body diagrams and all steps of your solution. A. The expression of the acceleration of the two masses in terms of mị and m2. B. The tension in the rope in terms of mị and m2. C. If m = Á kg, m2 = (A+5) kg, determine the acceleration of two blocks and the tension in the rope. (K= the final two numbers of your ID +10, and, gravitational acceleration, g = 9.81 m/s').arrow_forwardProblem 1 a) In an open vessel, a certain volume V of water is perfectly agitated by means of an impeller 20 cm in diameter D. Consider a case in which the impeller steadily rotates at 150 RPM (=revolutions per minute) Draw up a proper energy balance to find how temperature changes with time as a result of the power input øw, also named P, by the revolving impeller. • This Pis given by the formula P = 3.5 PN°D° in which N denotes the impeller speed in revolutions per second. Calculate P. When V = 120 litre and the specific heat of water amounts to 4.2 kJ/kgK, calculate the temperature increase of the water after one hour of stirring.arrow_forward
- Question 10 is attached.arrow_forwardPlease help me with this fluid mechanics question! Thank you!! :) A 1967 Harley-Davidson Shovelhead motorcycle uses a ventruri-carburetor to mix air and fuel for combustion. The venturi reduces the pressure to draw fuel from a reservoir chamber and to mix with the airstream as shown in the figure. The energy loss of the metering line is given by hL= (K*V^2)/2where K = 6.0 and V is the fuel velocity in the metering line. Assume that the air is an ideal fluid (68°F). Calculate the mass flux of air and the mass flux of fuel. Hint: Assume the air intake velocity is negligible.arrow_forwardA spring-mass system has a spring constant 3 N/m. A mass of 2 kg is attached to the spring, and the motion takes place in a viscous fluid that offers a resistance numerically equal to the magnitude of the instantaneous velocity. If the system is driven by an external force of (15 cos 3t - 10 sin 3t) N, determine the steady state response. Express your answer in the form R cos(wt 8). (Let u(t) be the displacement of the mass from its equilibrium position at time t.) Uss(t) =arrow_forward
- A 200 tonne train experience wind resistance equivalent to 60 N/tonne. The operating efficiency of the driving motors is 0.87 and the cost of electrical energy is 0.5 D/kWh. What is the cost of the energy required to make the train travel 1 Km. if the train is supplied at a constant voltage of 1.5 kV and travels with a velocity of 80 km/h, what is the supply current?arrow_forwardplease do parts F through Jarrow_forwardA wind turbine located at a height of 25m from ground, produces 950 kW. Its hub diameter negligible in comparison with length of the blade. Calculate the length of the blade. The average wind velocity is 15 m/s and wind density is 1.25 kg/m3.Gear box efficiency as 85%, Generator efficiency as 75% and Transmission efficiency as 80%. The value of Cp=0.29 and it is a horizontal type of wind turbine.arrow_forward
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