B.14 Turbine specific work − W t = m 4 ⋅ [U 5 ⋅ C θ5 − U 4 ⋅ C θ4 ]
<-----from the definition of angular momentum
− W t = ( m 3 + m f ) ⋅ [U 5 ⋅ ( U 5 − Wθ5 ) − U 4 ⋅ ( U 4 − Wθ4 )] − W t = m 3 ⋅ (1 +
<-----Cθ
U − Wθ
mf ) ⋅ [U 5 ⋅ ( U 5 − W5 ⋅ sin(β 5 )) − U 4 ⋅ ( U 4 − W4 ⋅ sin(β 4 ))] m3
− W t = m 3 ⋅ (1 + f ) ⋅ [U 5 ⋅ ( U 5 − W5 ⋅ sin(β 5 )) − U 4 ⋅ ( U 4 − W4 ⋅ sin(β 4 ))] Wt = −(1 + f ) ⋅ [U 5 ⋅ ( U 5 − W5 ⋅ sin(β 5 )) − U 4 ⋅ ( U 4 − W4 ⋅ sin(β 4 ))] m3
66
<-----W θ
W ⋅ sin ( β )
<-----f = m f / m 3
<-----Equation 15