Given . ● 86 and 91% isentoopie efficiency of the turbine = 86%. isentrople", Pump = 91% • If Dolynesi traction at State 6 Shoud not be more than 7%. 1% To find of Thermal efficiency of Puant
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- Given • isentoopie efficiency of the turbine isentropie · To find 86 and 91% If Dolynesi toraction Shoud not 86%. " of Pump = 91% Boiler = at State 6 be more than 1%. 1% Thermal efficiency of Puant 2 MPa (Pump 13 MPa, 600 C Turbine Condenser4) A gos tubre Ahe orking sebslance Durirg the alort d the compraico,he compression, the pescue d 500LR The conditoo of the atld of tomperahune of gos is at 340k ord ompresskn proces adobalic with geo 650k ond 193OKR. The wotona subatonce le hsted ord entoed the turbine at 1400k ond kzokR ond enronde adiabalically to 900k Ond 490HR. Detrmne: The compresor Ond turbine fictres oe achol compressor ond turbire vork o ho nakd the cyce c Te thond ficey c) Acunng that a domme the w Drow the schonadk dicgrom regoroabr is installed with 85% Hocticnes, thermal ficions2A steam throttiing valve with iniet conditions of 2MPa and 400C is connected to the inlet of the turbine. The turbine has 200kW power output and heat abstracted of 100KW. If the mass fiow rate is 1kgis and the exit temperature of steam is 300C, find the exit turbine pressure.
- Initial condition: P = 2 MPasaturatedProcess: AdiabaticFinal condition: P = 0.1 MPasaturatedRequired: Turbine isentropic efficiencyQ2Air enters an insulated turbine at 50°C, and exits the turbine at - 30°C, 100 kPa.The isentropic turbine efficiency is 70% and T1=50C V=20L/s the inlet volumetric flow rate is 20 L/s. What is the turbine Air turbine inlet pressure and the turbine power output? T2=-30C.P2=100kpaA steam engine isentropically expand 5kg/sec of the steam from the 0.70 mpa 250°c, the exhaust is dry saturated, def; (a) work of non flow process (b) final temperature (c) work of the steam flow process
- Q 2: - A one cylinders Freon (134a) compressor has a Bore and Stroke 5.4 and 4.8 cm respectively. It is speed 1450 rpm volumetric efficiency c.v 100% working fluid reaches expansion valve at 42°C and the temperature %3D of its suction -8°C:- a- Find the mass flow rate of the refrigerant, heat capacity and COPact& COPtho? b- Find the mass flow rate of the refrigerant, heat capacity and COP & COPtho if the clearance factor will be 5%?A turbine engine air intake is at pressure and temperature of air drawn 99 kPa and 29 °C respectively. The maximum pressure and temperature during the cycle is 990 kPa and 888 °C respectively. The adaibatic index as 1.4. After claculations, the pressure ratio of the cycle is compressor exit temperature is K, turbine exit temperature is K, net specific work output from the gas turbine engine is in k thermal efficiency_ is % and work ratio of the cycle is to I decimal place.3. Steam enters a turtsine with a and specifie enthalpy ( e990 KT/ng). The steam leaves . turbine with a steam flow rate is 324000 kg/hr. Detersnine Hue work out- 42 velociting of 16 mfane velocity of 37 ms and specfic enthal py of 2530 K3/ng. Tha heat lust to the surroundings steam passes thirough the turbine is (25 K3/xg). The as the KWs. -Put From the turbine in
- A air Compressor lequires a power input Of 1400 kW andask It Operates adialatically. The air İS compressed from 300 K and atmosp heric pressure to an exit presure of 20 atm, and the air leaves he comp ressor at a speed of 200 m/SecT DAssume that the air is an ideal gas and the inlet velocitey is m negligibly small, but do not ašsume that the specific heats rl are čonstant. if the mass flow rate is 2 kg/sec, calculate it the air temperature at the exit in figires. wsing 5 synifigant °CSteam engine with incomplete expansion receives saturated steam at 1.04 Mpa,expands it to 0.105 Mpa where release occurs. Exhaust is to a condenser at 40C.The actual engine uses 6070 kg/h of steam; it has a brake engine efficiency of 60%and a mechanical efficiency of 85%. The electric generator which it drives has anefficiency of 925. (a) For the ideal engine, find the thermal efficiency and the mep.For the actual engine, determine (b) the brake work in kW and the brake thermalefficiency, (c) the indicated work in kW, indicated thermal efficiency and indicatedsteam rate, (d) the combined thermal efficiency and the combined steam rateQ3\ Air conditioning system works by R22 the condenser and evaporator temperatures are 40°C & -10°C respectively, if the mass flowrate is 1.65kg/sec calculate the coafftiont of performance C.O.P.