A well insulated turbine operating at steady state is shown below. Steam enters at 3 MPa, 400 C, with a volumetric flow rate of 85 m3/min. Some steam is extracted from the turbine at a pressure of 0.5 MPa and a temperature of 180 C. The rest expands to a pressure of 6 kPa and a quality of 90%. The total power developed by the turbine is 11,400 kW. Kinetic and potential energy effects may be neglected. Determine the mass flow rate of the steam extracted from the turbine at location 2 in kg/s. 3.9 kg/s O 2.5 kg/s 3.1 kg/s O2.8 kg/s 4.6 kg/s

A well insulated turbine operating at steady state is shown below. Steam enters at 3 MPa, 400 C, with a volumetric flow rate of 85 m3/min. Some steam is extracted from the turbine at a pressure of 0.5 MPa and a temperature of 180 C. The rest expands to a pressure of 6 kPa and a quality of 90%. The total power developed by the turbine is 11,400 kW. Kinetic and potential energy effects may be neglected. Determine the mass flow rate of the steam extracted from the turbine at location 2 in kg/s. 3.9 kg/s O 2.5 kg/s 3.1 kg/s O2.8 kg/s 4.6 kg/s

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Rannkin cycle 1_The value of enthalpy at point 1 is ( h1 =?) 2_ value of enthalpy at point 2 is ( h2 =?) 3_ value of enthalpy at point 3 is ( h3 =?) 4_value of enthalpy at point 4 is ( h4 =? 5_ value of steam mass flow rate in kg/s is 6_rate of heat supplied7_ power developed by Turbine (WT) in kW is : 8_ Thermal efficiency of Rankine cycle is:
A GPP uses a simple Brayton cycle. Air enters the compressor at pressure, P = 1 bar, temperature, T = 20°C and exits the compressor at a pressure of 7 bar. Combustion chamber temperature = 800°C. Compressor efficiency, nk = 0.82, turbine efficiency, nT = 0.85. Turbine power 4 MW. Define: System installation diagram and cycle process on the P-v and T-s diagram P-v and T-swK, wt and rl cycles. BWR, mair, Wtnet, mfuel (qfuel : 40,000 kj/kg) Note : Air, cp,d : 1 ,005 kj/kg.k, k : 1 ,4 1 .15 kl/kg.k, k gas : 1 .3
OTTO CYCLE At the start of an air-standard Otto cycle's compression process, P1 = 1 bar, T1 = 300 K, V1 = 380cm3. The maximum temperature in the cycle is 2400 K and the compression ratio is 9. Determine the: (a) heat addition, in kJ (b) the net-work in kJ (c) the thermal efficiency (d) the mean effective pressure, in bar. Show complete solution.
I only need help with filling in the answers for parts h and i. At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a) the volume at state 1.b) the air mass per cycle.c) the heat addition per cycle, in kJ.d) the heat rejection per cycle, in kJ.e) the net work per cycle, in kJ.f) the thermal efficiency in %.g) the mean effective pressure, in bar.h) Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar (See image below).i) Devise and evaluate the exergetic efficiency for the cycle. part h
State 1 for a dual combustion engine is p1 = 1 atm and T1 constant volume combustion process, the pressure is 7695 kPa, r. = 1.5. Based on 1 kg/cycle of a hot-air standard with k = 1.31, determine = 18; at the end of the a. Percentage clearance b. Pressure, volume and temperature at points 1 –5 (kPa, m³ and Kelvin) c. Network of cycle in kJ d. Thermal efficiency e. Mean effective pressure in kPa
I only need help with parts c to i. At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a) the volume at state 1 in L.b) the air mass per cycle.c) the heat addition per cycle, in kJ.d) the heat rejection per cycle, in kJ.e) the net work per cycle, in kJ.f) the thermal efficiency.g) the mean effective pressure, in bar.h) Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar.i) Devise and evaluate the exergetic efficiency for the cycle.
Please show how to solve the following : Cycle pump power requirement ,Turbine power production ,Cycle efficiency
PART B ONLY A gas-turbine power generator operates on an ideal air-standard Brayton cycle 1 → 2 → 3 → 4 shown in Fig. 1. The gas temperatures at the compressor inlet, compressor exit, and turbine inlet are T1 = 300 K, T2 = 600 K, and T3 = 1200 K, respectively. Solve the problem below using the variable specific heat assumption. PART B - Determine the pressure ratio rp = P2/P1 and the temperature at the turbine exit, T4 (in K).
At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.2 L. Determine per cylinder: a) the volume at state 1.b) the air mass per cycle.c) the heat addition per cycle, in kJ.
At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.4 L. Determine per cylinder: a)    the volume at state 1.b)    the air mass per cycle.c)    the heat addition per cycle, in kJ.d)    the heat rejection per cycle, in kJ.e)    the net work per cycle, in kJ.f)     the thermal efficiency.g)    the mean effective pressure, in bar.h)    Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar.i)    Devise and evaluate the exergetic efficiency for the cycle.
At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a)    the volume at state 1.b)    the air mass per cycle.c)    the heat addition per cycle, in kJ.d)    the heat rejection per cycle, in kJ.e)    the net work per cycle, in kJ.
I only need help with parts e to i. At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.1 L. Determine per cylinder: a)    the volume at state 1.b)    the air mass per cycle.c)    the heat addition per cycle, in kJ.d)    the heat rejection per cycle, in kJ.e)    the net work per cycle, in kJ.f)     the thermal efficiency.g)    the mean effective pressure, in bar.h)    Develop a full exergy accounting per cycle, in kJ. Let T0 = 300 K, p0 = 1 bar.i)    Devise and evaluate the exergetic efficiency for the cycle.