Develops power from entering and exiting streams of water

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Reference no: EM131102140

6.86 By injecting liquid water into superheated steam, the desuperheater shown in Fig. P6.86 has a saturated vapor stream at its exit. Steady-state operating data are provided

6.87 An inventor claims that at steady state the device shown in Fig. P6.87 develops power from entering and exiting streams of water at a rate of 1174.9 kW. The accompanying table provides data for inlet 1 and exits 3 and 4. The pressure at inlet 2 is 1 bar. Stray heat transfer and kinetic and potential energy effects are negligible. Evaluate the inventor's claim.

State	m(kg/s)	p(bar)	T(8C)	y(m3/kg)	u(kJ/kg)	h(kJ/kg)	s(kJ/kg? K)
1	4	1	450	3.334	3049.0	3382.4	8.6926
3	5	2	200	1.080	2654.4	2870.5	7.5066
4	3	4	400	0.773	2964.4	3273.4	7.8985

Reference no: EM131102140

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