A well-insulated turbine operating at steady state is shown on the right. 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 can be neglected. Determine (a) the mass flow rate (in kg/s) at each exit, and (b) the diameter of the duct, d₂ (in cm) where steam is extracted P₁ = 3MPa T₁ = 400°C (AV)₁ = 85 m³/min Turbine 2 P2 = 0.5 MPa T₂ = 180°C V₂ = 20 m/s Power out 3 P3= 6 kPa X3 = 90%

A well-insulated turbine operating at steady state is shown on the right. 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 can be neglected. Determine (a) the mass flow rate (in kg/s) at each exit, and (b) the diameter of the duct, d₂ (in cm) where steam is extracted P₁ = 3MPa T₁ = 400°C (AV)₁ = 85 m³/min Turbine 2 P2 = 0.5 MPa T₂ = 180°C V₂ = 20 m/s Power out 3 P3= 6 kPa X3 = 90%

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: In a hydroelectric power plant, water at 4°C is supplied to the turbine at a rate of 0.58 m³/s…

A: Flow rate, Q = 0.58 m3/s Length, L = 195 m Pipe dimension, D = 0.34 m Elevation difference, Z1-Z2 =…

Q: 7. A heavy Oil (y = 9000 N/m³) is flowing at a rate of 0.65 m³/s in the system shown. If the total…

A: Q = 0.65 m3/s HL = 2.5 m PB = 70 kPa

Q: m/N of oil flowing, calculate the power delivered Suction pipe is 1.4 N-m/N of oil flowing,…

A: Given:- 840 L/min crude oil sg=0.85 total energy loss=4.2N-m/N To find:- pressure at the pump level…

Q: 3. The motor unit A is used to elevate the 300-kg cylinder at a constant rate of 2 m/s. If the power…

Q: Water is pumped from a large reservoir to a storage tank 30m above via a constant diameter pipe. The…

A: To Determine a) The overall efficiency of the pump-motor unit if all frictional losses in the pipes…

Q: KAPLAN TURBINE RUNNER DEVELOPS 9300 KW UNDER A NET HEAD OF 7.4 M. MECHANICAL EFFICIENCY OF THE WHEEL…

Q: Problem 2 Refrigerant-134a enters the compressor of a refrigeration system as saturated vapor at…

Q: d then empties into a river. The flow in the pipe is 100 cfs. The length of the pipe is 750 feet.…

Q: Q4: A turbine is located in pipe No.2, shown in figure (4). If the turbine efficiency is (90%), what…

Q: A water turbine delivering 10 MW power is to be tested with the help of a geometrically similar 1:…

A: A water turbine- Power Pp=10 MW = 10 x 106 W 1 : 10 Model, at same speed & efficiency, Nm=Np To…

Q: The horizontal pump in Fig.1 discharges water at 57 m3/h. Neglecting Losses,What power in KW is…

A: Given data, Q = 57 m3/h D1 = 9 cm = r = 4.5 cm D2 = 3 cm = r = 1.5 cm p1 = 120 kPa p2 = 400 kPa…

Q: Water flows through the turbine shown at a rate of 0.386 m3/s. The pressures at points A and B are…

Concept explainers

Friction

Friction is defined as the force that prevents any solid surface, any layer of fluid, or any kind of element or material from sliding.

Question

A well-insulated turbine operating at steady state is
shown on the right. 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 can be
neglected. Determine (a) the mass flow rate (in kg/s)
at each exit, and (b) the diameter of the duct, d₂ (in
cm) where steam is extracted
P₁ = 3MPa
T₁=400°C
(AV)₁ = 85 m³/min
Turbine
P2 = 0.5 MPa
T₂ = 180°C
V₂= 20 m/s
Power out
¹3
P3= 6 kPa
x3 = 90%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Motor unit A is used to elevate the 300-kg, cylinder at a constant rate of 2 m/s. If the power meter B registers an electrical input of 2.10 kW, calculate the combined electrical and mechanical efficiency e of the system. 1 B 100 kg A lee 300 kg 2 m/s
P2 = 3 bar 15 m Pump- T = 15°C PI = 1 bar Figure provides steady-state operating data for a pump drawing water from a reservoir and delivering it at a pressure of 3 bar to a storage tank perched 15 m above the reservoir. The power input to the pump is 0.52 kW. The water temperature remains nearly constant at 15°C, there is no significant change in kinetic energy from inlet to exit, and heat transfer between the pump and its surroundings is negligible. Let g = 9.81 m/s². The mass flow rate of water is kg/s.
1. A 2,000 ft long PVC pipe of 12-in diameter carries 1.0 cfs of water. The "C" coefficient is assumed to be 150. Calculate the loss of energy due to friction using the Hazen-Williams formula
A 10-kg mass of superheated refrigerant-134a at 1.2 MPa and 70°C is cooled at constant pressure until it exists as a compressed liquid at 20°C. (a) Show the process on a T-v diagram with respect to saturation lines. (b) Determine the change in volume. (c) Find the change in total internal energy.
A new hydraulic turbine is to be designed to be similar to an existing turbine with following parameters at its best efficiency point: DA = 3 m, n.A = 90 rpm, V.A = 200 m3/s, HA = 55 m, bhpA = 100 MW. The new turbine will have a speed of 110 rpm and the net head will be 40 m. What is the bhp of the new turbine such that it operates most efficiently? (a) 17.6 MW (b) 23.5 MW (c) 30.2 MW (d) 40.0 MW (e) 53.7 MW
The air shed over a city can be considered by a completely stirred tank reactor (CSTR) model with two sides of 2×10° m in length and a mixing depth of 500 m. Horizontal wind blows at 4 m/s from one side of the box and exits from the opposite side. Assume that within the box, the air is well mixed all the time. Within the air shed, benzene (C6H6) is emitted by automobiles, power plants, and factories at a rate of 0.4 kg/s. No benzene is brought to the city by wind. When equilibrated, what is the benzene concentration in the atmosphere? Please sketch the model first. Pay attention to the units.
1. A Rankine cycle with reheating has a throttle pressure of 135 bars at the turbine inlet and 28 bars reheat pressure, the throttle and reheat temperature of the steam is 550C, condenser pressure is 0.035 bar, mass flow rate of steam is 10 kg/sec. Draw the T-s and schematic diagram of the cycle and determine the following: (c) theoretical thermal efficiency (d) the steam rate (e) heat rate of the cycle
At critical depth O The discharge is maximum for a given specific energy. O The specific energy is maximum for a maximum discharge. O The specific energy is minimum for a maximum discharge. O The discharge is minimum for a given specific energy.
The 600 mm pipe shown conducts water from reservoir A to a pressure turbine, which discharges through another 600 mm o pipe into tail race B. The head lost from A to 1 is 5 times the velocity head in the pipe and the head lost from 2 to B is 0.2 times the velocity head in in the pipe. If the discharge is 700 L/s A) Compute for the total head lost 1. 05: Compute for the extracted energy cause by the turbine Compute for the hp given up by the turbine. V Answer A) EL 60m 600 mm 1.63 m 58.37 m 537.3 hp 600 mm o B ▷ EL 0 m
An oil pump is drawing 18 kW of electric power while pumping oil with density 860 kg/m³ at a rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8 cm and 17 cm, respectively. If the pressure rise of oil in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical efficiency of the pump. Take the kinetic energy correction factor as 1.05. Pump 8 cm Docm ΔΡ = 250 kPa 18 kW s Motor Oil 0.1 m³/s The mechanical efficiency of the pump is %.