EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Chapter 8, Problem 7RQ
To determine
How is glass different from a glass ceramic?
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A closed-cycle gas turbine unit operating with maximum and minimum temperature of 760oC and 20oC has a pressure ratio of 7/1. Calculate the ideal cycle efficiency and the work ratio
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Chapter 8 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 8 - What is a ceramic?Ch. 8 - List the major differences between the properties...Ch. 8 - List the major types of ceramics that are useful...Ch. 8 - What do the following materials typically consist...Ch. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 18RQCh. 8 - Explain why ceramics are weaker in tension than in...Ch. 8 - What are the advantages of cermets? Suggest...Ch. 8 - Explain why the electrical and thermal...Ch. 8 - Prob. 22QLPCh. 8 - Prob. 23QLPCh. 8 - Explain why the mechanical properties of ceramics...Ch. 8 - Explain how ceramics can be made tougher.Ch. 8 - List and describe situations in which static...Ch. 8 - What properties are important in making...Ch. 8 - A large variety of glasses is now available. Why...Ch. 8 - Prob. 29QLPCh. 8 - Prob. 30QLPCh. 8 - Aluminum oxide and PSZ are described as white in...Ch. 8 - Why does the strength of a ceramic part depend on...Ch. 8 - In old castles and churches in Europe, the glass...Ch. 8 - Prob. 34QLPCh. 8 - Prob. 35QLPCh. 8 - Perform an Internet search and determine the...Ch. 8 - Prob. 37QLPCh. 8 - Prob. 38QLPCh. 8 - In a fully dense ceramic, UTSO = 200 MPa and EO =...Ch. 8 - Plot the UTS, E, and k values for ceramics as a...Ch. 8 - What would be the tensile strength and the modulus...Ch. 8 - Prob. 42QTPCh. 8 - Prob. 43QTPCh. 8 - Prob. 44QTPCh. 8 - Prob. 45SDPCh. 8 - Prob. 46SDPCh. 8 - Prob. 47SDPCh. 8 - Prob. 48SDPCh. 8 - Prob. 49SDPCh. 8 - Prob. 50SDPCh. 8 - Conduct a literature search and write a brief...Ch. 8 - Prob. 52SDPCh. 8 - Prob. 53SDPCh. 8 - It has been noted that the strength of brittle...Ch. 8 - Prob. 55SDP
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- Two reversible heat engines operate in series between a source at 600°C, and a sink at 30°C. If the engines have equal efficiencies and the first rejects 400 kJ to the second, calculate: the temperature at which heat is supplied to the second engine, The heat taken from the source; and The work done by each engine. Assume each engine operates on the Carnot cyclearrow_forwardA steam turbine operates at steady state with inlet conditions of P1 = 5 bar, T1 = 320°C. Steam leaves the turbine at a pressure of 1 bar. There is no significant heat transfer between the turbine and its surroundings, and kinetic and potential energy changes between inlet and exit are negligible. If the isentropic turbine efficiency is 75%, determine the work developed per unit mass of steam flowing through the turbine, in kJ/kgarrow_forwardHomework#5arrow_forwardMember AB has the angular velocity wAB = 2.5 rad/s and angular acceleration a AB = 9 rad/s². (Figure 1) Determine the magnitude of the velocity of point C at the instant shown. Determine the direction of the velocity of point C at the instant shown. Determine the magnitude of the acceleration of point C at the instant shown. Determine the direction of the acceleration of point C at the instant shown. A 300 mm WAB α AB B 500 mm 0=60° y 200 mmarrow_forwardYou are asked to design a unit to condense ammonia. The required condensation rate is 0.09kg/s. Saturated ammonia at 30 o C is passed over a vertical plate (10 cm high and 25 cm wide).The properties of ammonia at the saturation temperature of 30°C are hfg = 1144 ́10^3 J/kg andrv = 9.055 kg/m 3 . Use the properties of liquid ammonia at the film temperature of 20°C (Ts =10 o C):Pr = 1.463 rho_l= 610.2 kf/m^3 liquid viscosity= 1.519*10^-4 kg/ ms kinematic viscosity= 2.489*10^-7 m^2/s Cpl= 4745 J/kg C kl=0.4927 W/m Ca)Calculate the surface temperature required to achieve the desired condensation rate of 0.09 kg/s( should be 688 degrees C) b) Show that if you use a bigger vertical plate (2.5 m-wide and 0.8 m-height), the requiredsurface temperature would be now 20 o C. You may use all the properties given as an initialguess. No need to iterate to correct for Tf. c) What if you still want to use small plates because of the space constrains? One way to getaround this problem is to use small…arrow_forwardUsing the three moment theorem, how was A2 determined?arrow_forwardDraw the kinematic diagram of the following mechanismarrow_forward##### For the attached electropneumatic circuit, design where and how a counter should be attached so that a part is counted for each cyclearrow_forwardIf you have a spring mass damper system, given by m*x_double_dot + c*x_dot + kx = 0 where m, c, k (all positive scalars) are the mass, damper coefficient, and spring coefficient, respectively. x ∈ R represents the displacement of the mass. Let us then discuss the stability of the system by using Lyapunov stability theorem. Consider the system energy as a candidate Lyapunov function shown in the image. Discuss the positive definiteness of V (x, x_dot). Derive the Lyapunov rate of this system (i.e., V_dot ), and discuss the stability property of thesystem based on the information we gain from ̇V_dot .arrow_forwardIn class, two approaches—Theorems 1 and 2 below—are discussed to prove asymptotic stability of asystem when ̇V = 0. Show the asymptotic stability of the system given in Eq. (1) by applying Theorem 1. Show the asymptotic stability of the system given in Eq. (1) by applying Theorem 2.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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