Microsoft Word - Cengel and Boles TOC _2-03-05_.doc

Chapter 4 | 215 ture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits the stops, (d) and the ...

4 –149 The specific heat of a material is given in a strange unit to be c3.60 kJ/kg°F. The specific heat of this mater- ial in ...

Chapter 4 | 217 If the initial temperature of the egg is 5°C, the maximum amount of heat transfer to the egg is (a) 12 kJ (d) 18 ...

during vacuum cooling. Using calculations, demonstrate if this claim is reasonable. 4 –173 A 1982 U.S. Department of Energy arti ...

Chapter 5 MASS AND ENERGY ANALYSIS OF CONTROL VOLUMES | 219 I n Chap. 4, we applied the general energy balance relation expresse ...

5–1 ■ CONSERVATION OF MASS Conservation of mass is one of the most fundamental principles in nature. We are all familiar with th ...

differential), but this is not the case for the integral of dm . (thus the names path function and inexact differential). The ma ...

Conservation of Mass Principle The conservation of mass principlefor a control volume can be expressed as:The net mass transfer ...

The net flow rate into or out of the control volume through the entire con- trol surface is obtained by integrating dm . over th ...

It states that the total rate of mass entering a control volume is equal to the total rate of mass leaving it. Many engineering ...

Chapter 5 | 225 Properties We take the density of water to be 1000 kg/m^3 1 kg/L. Analysis (a) Noting that 10 gal of water are ...

5–2 ■ FLOW WORK AND THE ENERGY OF A FLOWING FLUID Unlike closed systems, control volumes involve mass flow across their boundari ...

To push the entire fluid element into the control volume, this force must act through a distance L. Thus, the work done in pushi ...

The fluid entering or leaving a control volume possesses an additional form of energy—the flow energy Pv, as already discussed. ...

Chapter 5 | 229 EXAMPLE 5–3 Energy Transport by Mass Steam is leaving a 4-L pressure cooker whose operating pressure is 150 kPa ...

5–3 ■ ENERGY ANALYSIS OF STEADY-FLOW SYSTEMS A large number of engineering devices such as turbines, compressors, and nozzles op ...

(5–33) Rate of net energy transfer Rate of change in internal, kinetic, by heat, work, and mass potential, etc., energies or Ene ...

Dividing Eq. 5–38 by m . gives the energy balance on a unit-mass basis as (5–39) where qQ . /m . and wW . /m . are the heat tr ...

5–4 ■ SOME STEADY-FLOW ENGINEERING DEVICES Many engineering devices operate essentially under the same conditions for long perio ...

EXAMPLE 5–4 Deceleration of Air in a Diffuser Air at 10°C and 80 kPa enters the diffuser of a jet engine steadily with a velocit ...