2. A geothermal well produces steam at a rate of 40 kg/s. The steam is at a temperature of 250° C and a pressure of 200 kPa. The steam is expanded through the turbine to a temperature of 5° C where it is a saturated mixture with a quality of 85%. Determine the power delivered by the turbine, in MW.

2. A geothermal well produces steam at a rate of 40 kg/s. The steam is at a temperature of 250° C and a pressure of 200 kPa. The steam is expanded through the turbine to a temperature of 5° C where it is a saturated mixture with a quality of 85%. Determine the power delivered by the turbine, in MW.

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

Related questions

Q: If the steam undergoes a process under Pv^1.273 = C, and the work steady flow is found to be 496.74…

A: given; PV1.273=Csteady flow work(w)=496.74BTUnon-flow work(w1)=?

Q: Sensible heat of 496 kW is required to be added to the saturated air at 2 °C dry-bulb temperature…

Q: Find the dryness fraction of a steam having a specific volume of 15 m3 /kg after expansion in a…

A: Given that, Specific colume of steam after expansion from turbine, v=15 m3/kgSpecific volume of…

Q: the magnitude of the work required for the process

A: Given; An ideal gas undergoes a reversible process;In which the pressure varies linearly with…

Q: Inside a piston-cylinder device there is 5 kg of a moist water vapor at 125 kPa. At the beginning…

Q: stream of water (4 kg/s; T = 50ºC) is continuously mixed with another stream of water (1 kg/s; T =…

A: Given:m1=4 kg/sT1=50°Cm2=1 Kg/sT2=80°CQa=50 KJ/Kg

Q: 6. A closed gaseous system undergoes a reversible process in which 28 BTU of heat are rejected and…

Q: A 10-ft' tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is…

Q: Q.2.) A piston-cylinder device contains 0.8 m3 of Air at 300 kPa and 400°C. Air is now allowed to…

A: Given data Specific heat at average temperature is Assume air as the ideal gas.

Q: 17. A piston-cylinder device with a set of stops initially contains 0.3 kg of steam at 1.0 MPa and…

A: Given:m=0.3 KgP1=1.0 MPav1=0.30661 m3/Kgv2=0.6*v1h2=2950 KJ/Kg

Q: a) A river flowing steadily at a rate of 240 m3/s is considered for hydroelectric power generation.…

A: As per our company policy we are asked to solve 1 question only.. please post the second question as…

Q: A tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

Q: As shown in the figure, a 320-ft³ tank contains 25 lb of H₂O initially at 30 lbf/in². The tank is…

Q: Two rigid tanks A and B are connected by a valve. Tank A contains 0.6 of water at 550 kPa and 38…

Q: A) There is a steam system in which the boiler must be fed by using a pump that supplies 0.005 m³/s…

Q: 5. An ideal compressor compresses 12 kg/min of air isothermally from 99 kPa and a specific volume of…

Q: As shown in the figure, a 320-ft³ tank contains 25 lb of H₂O initially at 30 lbf/in². The tank is…

Q: ume (Vi), and finally expanded at a constant pressure to the PV diagram of the eycle and then…

Q: The operation of turbine is to harvest energy from the high temperature steam. Consider a scenario…

Q: 1. At 3MPa and 400C, 2 kg/s steam flows into a turbine. It exits at 300kPa. The turbine has an…

Q: A. Two kg of steam with a quality of 22 percent is heated at a constant pressure of 300 kPa until…

A: Given Data: The initial pressure of the steam, P1=300 kPa The initial quality of the steam, x1=0.22…

Q: 2) A 0.8 m rigid tank contains refrigerant-134a initially at 100 kPa and 25 percent quality. Heat is…

A: Data given- V = 0.8 m3 P1 = 100 kPa X1 = 0.25 P2 = 500 kPa

Q: A rigid tank of 0.22-m'volume initially contains saturated vapor refrigerant-134a at 1.2 MPa. The…

Q: A piston-cylinder device initially contains CO2 at 200 kPa and 400°C and the total enclosed volume…

Q: 2) A Refrigerant 134a at 1 MPa and 12 °C is mixed with another stream at 1 MPa and 60 °C. If the…

Q: A tank contains 15 kg of R134a, initially at 2°C with a quality of 0.28. The pressure is held…

Q: A turbine has an inlet with water at a pressure of 1500 kPa and T = 750, an extraction of 20% of the…

A: To find: The turbine work. Given: The inlet pressure is P1=1500 kPa. The inlet temperature is…

Q: Air with a pressure of 2 MPa and a temperature of 250 C (0.5 kg of PV^ 1.25 = expands while…

Q: Nitrogen gas at 90° F (MW=28) goes through a compressor, increasing its pressure from 10 psi to 65…

A: PV and TS diagram

Q: If the steam undergoes a process under Pv^1.175 = C, and the work steady flow is found to be 495.90…

A: Pv1.175=CFlow=495.90BTU To-Find:- Work non-flow

Q: 4. Steam flows through a turbine. The inlet conditions are 4 MPa and 500°C. The exit conditions are…

Q: As shown in the figure, a 300-ft³ tank contains 25 lb of H₂O initially at 30 lbf/in². The tank is…

Q: Use steam tables. Steam at 10 MPa & 344°C, expands Isentropically through a turbine. The said…

Q: 3. A gas contained in a piston cylinder. The gas expands slowly from an initial pressure and volume…

Q: Water enters an internally reversible turbine at 2 MPa, 400oC and exits at 150 kPa. Heat transfer,…

Q: Steam enters a turbine at 1380 kPa with internal energy of 2705 kJ/kg and specific volume of 0.1655…

A: a) First law of thermodynamics is used Q= delta U + W b) Total work in 1 hr is calculated which is…

Q: Water contained in a closed, rigid tank, initially at 100 lb-/in², 800°F, is cooled to a final state…

Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

2. A geothermal well produces steam at a rate of 40 kg/s. The steam is at a
temperature of 250° C and a pressure of 200 kPa. The steam is expanded through
the turbine to a temperature of 5° C where it is a saturated mixture with a quality
of 85%. Determine the power delivered by the turbine, in MW.

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

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, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

p46,#17 with illustration and explanation
2. 2 kg of water in a piston-cylinder assembly undergoes two consecutive reversible processes: a. Process 1-2: Isentropic compression from P1 = 0.1 MPa, T1=100°C to P2=D0.5 MPa b. Process 2-3: Isobaric process to a temperature T3 = 400 C Determine heat transfer (kJ), work (kJ), and change in specific entropy (kJ/kgK) for each process.
A piston-cylinder device initially contains CO2 at 200 kPa and 400°C and the total enclosed volume is 300 litres. Due to heat loss, the piston moves downwards to a position where it sits on a pair of stoppers and its final enclosed volume is 150 litres. Further heat loss leads to the pressure being reduced to 160kPa. Workout 1) the final temperature, 2) the total work done by CO2 and 3) the total heat transferred to CO2. Also make some comments on the result of heat and create a schematic p-v diagram of the process. The following assumptions are to be made: CO2 is a perfect gas and its molecular mass is 44kg/kmol. The ratio of specific heat capacities, γ (gamma) is 1.3 The volume occupied by the stoppers is to be ignored. There is no leakage in the system There is no friction between the cylinder and piston walls and the piston moved slowly at the same speed therefore, no acceleration. For the conversion from Celsius to Kelvin, use 273 Use 8314.5 J/kmol.K for the universal gas…
A 100L tank initially contains water at 100kPa and a quality of 1%. Heat is transferred to the water, raising the temperature and pressure. At a pressure of 3 MPa, a safety valve opens and saturated vapor at 3 MPa flows out. The process continues, maintaining 3 MPa inside until the quality in the tank is 90% and then stops. Determine the total mass of water that flowed out and the total heat transfer.
1. Steam at a pressure of 2MPA and temperature 300°C is passed at a constant rate into a desuperheater unit. The desuperheater is accomplished by continuously spraying water at 95 °C onto incoming superheated steam. The amount of water injected is so regulated that both the water and superheated steam finally change into dry steam at 2 MPa. If the resulting mixture of dry saturated steam leaves the desuperheater at 2MPA and the rate of I kg/s, find the mass of superheated steam used per hour and the mass of water to be injected per hour. Fond also the diameter of the pipe through which the superheated steam flows to the superheater if the speed of the steam through the pipe is not to exceed 25m/s..
The work required to compress a gas reversibly according to pV1.30=c is 67790 J, if there is no flow. Determine the change of internal energy and Q if the gas is air.
As shown in the figure, a 320-ft³ tank contains 25 lb of H₂O initially at 30 lbf/in². The tank is connected to a large steam line carrying steam at 200 lbf/in², 450°F. Steam flows into the tank through a valve until the tank pressure reaches p2 = 100 lbf/in² and the temperature is 400°F, at which time the valve is closed. Step 1 Steam at 200 lbf/in.2, 450°F Am 12 = i (1) Valve AD Determine the amount of mass that enters the tank, in lb. lb (1) Determine the amount of mass that enters the tank, in lb, and the heat transfer to the tank from its surroundings, in Btu. Tank Initially: 30 lbf/in.², m₁ = 25 lb (2) Finally: P₂ lbf/in.², 400°F.
5. Steam expands quasi-statically and isothermally from 800 kPa and 200C to a final pressure of 200 kPa. Determine the work done in kJ/kg.
2. Steam expands steadily at a constant temperature. The flow rate is 13.6 kg/min with an inlet state of wet steam (water) at 80% quality to a final state of 70°C and 2.5 MPa. The change of kinetic energy across the device is 3.5 kJ/kg, and the heat added is 21.81 kW. Determine (a) the enthalpy of conditions 1 &2, (b) the heat transfer in kJ/kg, (c) the work, and (d) the system power.