Energy Transfer

More documents

Recommendations

Info

MOVING BOUNDARY WORK (cont’d)• Moving boundary work is sometimes called theP dV work• The total boundary work done during the entireprocess as the piston moves is obtained byadding all the differential works from the initialstate to the final stateW2b P dV (kJ)1Energy Transfer 14© Copyright 2005 Prof. Arun S. Mujumdar.
MOVING BOUNDARY WORK (cont’d)• P = f(v) should be available. Note that P = f(v)is simply the equation of the process path on aP-V diagram• The total area A under the process curve 1-2 (to go from state 1 to state 2) is obtained byadding these differential areas:2 2Area A1dA1P dVEnergy Transfer 15© Copyright 2005 Prof. Arun S. Mujumdar.
Page 1: ME2121 Engineering ThermodynamicsEN
Page 5 and 6: Heat and work are energy transfer m
Page 7 and 8: ENERGY TRANSFER BY WORK (Cont’d)
Page 9 and 10: • Path functions have inexact dif
Page 11 and 12: MECHANICAL FORMS OF WORK (cont’d)
Page 13: MOVING BOUNDARY WORK (cont’d)•
Page 17 and 18: Boundary Work during a Constant-Vol
Page 19 and 20: Boundary Work for a Constant-Pressu
Page 21 and 22: Isothermal Compression of anIdeal G
Page 23 and 24: Gravitational Work• Gravitational
Page 25 and 26: dsV ds VdtdtWa21F ds2 dV m(V dt
Page 27 and 28: Then the shaft work is given by:W s
Page 29 and 30: Non-mechanical Forms of Work• Som
Page 31 and 32: Energy Balance:The net change (incr
Page 33 and 34: whereUm(u2 u1 2KE m( V2V2PE mg (z
Page 35 and 36: First Law: Statement• Heat input
Page 37 and 38: • An expression for the specific
Page 39 and 40: du = Cv(T) dT andHence,andudh = Cp
Page 41 and 42: The ideal gas specific heats of mon
Page 43 and 44: Conservation of Mass PrincipleSecti
Page 45 and 46: ExamplesFor incompressible fluid (n
Page 47 and 48: Total Energy of a Flowing Fluid•
Page 49 and 50: Closing Remarks - Chapter 3• This

Energy Transfer

Create successful ePaper yourself

Delete template?

Save as template?