Chapter 8, Problem 8.7P

Please explain steps

The condensing pressure for a Rankine engine is 0.001325  MPavac. Calculate the following for steam flow rate  =  16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa.  Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Combined work (KW) . Ans.____________________________ Combined steam rate in kg/KW-hr. Ans.___________________________ Actual heat rate( KJ/KW-hr). Ans.____________________________

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The condensing pressure for a Rankine engine is 0.001325  MPavac. Calculate the following for steam flow rate  =  16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa.  Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.___________________________

Please explain and show how to get each value

Steam is supplied to a two-stage turbine at 48 bar and 400 °C. It expands in the first turbine until it is just dry saturated, then it is re-heated to 400 °C and expanded through the second-stage turbine. The condenser pressure is 0.04 bar. High-P turbine Low-P turbine Reheater Boiler P4 = P3 = Prcheat Condenser what is the dryness fraction at state 6 to 3 d.p.? Ifo

I'll leave a thumbs up if you ans the following. Determine the following: a. The fuel flow rate in kg/sec b. Cooling water flow rate in kg/min c. Assume an ideal cycle with pump efficiency = 80% and turbine efficiency = 85%, find the quality of steam entering the condenser

Consider a Carnot vapor refrigeration cycle with Refrigerant 134a as the working fluid. The cycle maintains a cold region at 40 °F when the ambient temperature is 90 °F. Data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 10.1. Sketch the T-s diagram for the cycle and determine the a. temperatures in the evaporator and condenser, each in °R. b. compressor and turbine work, each in Btu per lb of refrigerant flowing. c. coefficient of performance. d. coefficient of performance for a Carnot cycle operating at the reservoir temperatures. Compare the coefficients of performance determined in (c) and (d), and comment. State 1 2 3 4 p (lbf/in.²) 40 140 140 40 Warm region at Tu wwwwww Condenser Turbine Compressor Evaporator www Cold region at Te Qua FIG. 10.1 Carnot vapor refrigeration cycle. h (Btu/lb) 104.12 114.95 44.43 42.57 TH Te s (Btu/lb. ºR) 0.2161 0.2161 0.0902 0.0902

The values of a vapor compression refrigeration cycle were given below. Calculate the values ofrefrigerant flow rate, refrigeration capacity, and the COP of the system.T1= Evaporator water outlet = 10 °CT2= Evaporator water inlet = 16 °CT3= Condenser water inlet = 16 °CT4= Condenser water outlet = 22°CCooling water flow rate = 1.5 L/minHeating water flow rate = 1.5 L/minEnthalpy of R134a in evaporator outlet = 305 kj/kg,Enthalpy of R134a in evaporator inlet =115 kj/kgEnthalpy of R134a in condenser inlet =327 kj/kg