Engineering College

refrigerant 134a is the working fluid in a solar power plant operating on an ideal rankine cycle. saturated vapor at 60 oc enters the turbine, and the condenser operates at a pressure of 6 bar. the rate of energy input to the collectors from solar radiation is 0.4 kw per m2 of collector surface area. determine the solar collector surface area, in m2, per kw of power developed by the plant.

Answers

Answer 1

The solar collector surface area, in m2, per kW of power developed by the plant is [tex]25.3 m^2/kW[/tex].

1. T1=[tex]60 ^{0}[/tex]C

H1=275.99 kJ/Kg (Enthalpy for saturated vapor [tex]60^{0}[/tex]C)

Hfg=137.42 kJ/Kg

2. P2= 6 bar

T2=21.58 C ( temperature of sat. liquid  6 bar)

H2=259.19  (enthalpy of sat. liquid  6 bar)

From the above conditions, the power generated can be found.

Wt.=H1-H2=275.99-259.19=16.8 KW )

3.After condensing:

T3=21.58 C

P3= 6 bar

4. After pump:

T4=21.58 C

the power required by the solar collector to bring the temperature of the fluid up to 60 C  and vaporize the fluid :

W=CpT + [tex]H_{fg}[/tex]

Cp= 0.857 KJ/kg

[tex]H_{fg}[/tex]=137.42

W=0.857x(60-21.58) + 137.42=170.35 KW

Area required:

A=[tex]170.35 kw/0.4 KW/m^2[/tex]

A=[tex]425.86 m^2[/tex]

Area/Power generated= A / Wt=[tex]425.86 m^2/16.8 KW[/tex]

Area/Power generated=[tex]25.3 m^2/KW[/tex]

What is solar radiation?

Solar radiation often referred to as solar energy or simply sunlight, is the general term for electromagnetic radiation emitted by the sun. Solar radiation can be captured and converted into useful forms of energy such as heat and electricity using various technologies.

Solar radiation produces heat, light and energy that all living organisms need. Infrared radiation provides heat to all habitats both on land and in water Without solar radiation, the earth would be about 32°C colder 25. Solar radiation provides the heat and light necessary for life on earth.

TYPES OF SOLAR RADIATION

Direct solar radiation. Diffuse solar radiation. Reflected solar radiation.

To learn more about solar radiation, refer;

https://brainly.com/question/23338147

#SPJ4

Related Questions

technician a says that fuel pump modules are spring-loaded so that they can be compressed to fit into the opening. technician b says that they are spring-loaded to allow for expansion and contraction of plastic fuel tanks. who is right?

Answers

According to Technician A, fuel pump modules are spring-loaded so they can be compressed to fit the aperture.

Electric fuel pumps are often mounted in the fuel tank to utilize the fuel in the tank to cool the pump and ensure a steady supply of fuel. Each injector has a spring-loaded valve that is kept closed by the force of the spring. The valve doesn't open until fuel is squirted into it. The fuel pump driver module controls the voltage supplied to the fuel pump in a vehicle. By adjusting voltage, the module ensures ideal fuel pressure and flow to the engine throughout its entire operating range.

Learn more about voltage here-

https://brainly.com/question/29445057

#SPJ4

Other Questions
kyla is performing a swedish massage, and is working on her client's back. she places her hands palm-side down on the client's lower back, and then smoothly slides them upward, leaning into the movement while maintaining a straight back. as she nears the end of the stroke, she spreads her fingers wide on both sides and slowly releases pressure. which massage movement is kyla using? Quadrilateral ABCD is inscribed in this circle What is the measure of angle A? the fact that americans want our president to be a strong leader and also follow the will of the people is known as: 10.Which of the following is a way that early people adapted to living in a cold climate?(10 Points)A. They built houses out of stone.B. They lived close to water.C. They stayed inside.D. They made clothes from animal skins. I need help understanding this! a cell with 6 chromosomes undergoes meiosis. at the end of all of meiosis and cytokinesis, how many daughter cells are produced and how many chromosomes are in each daughter cell? a scrap metal facility has been neglecting employee health and safety. if employees contact osha to request an inspection, what can the facility's management expect? X (3x + 5)(4x)Y(8x - 14)BN (q012) bethany sees a person fall down on the street a few feet in front of her. she has no idea what has happened but quickly makes the decision to call 911 as others around her also attempt to help. in dramaturgical terms, her reaction exemplifies . a. definition of the situation b. backstage behavior c. expressions given off d. impressions given URGENT! In the unit, you learned about the twelve elements of a heros journey. Identify and briefly explain the twelve elements in the myth of Hercules from the video. If an element isnt present, explain your reasoning for why the element isnt present. Purple hibiscusChapter 11Page. 220: Amaka asks Kambili a question that no one else has asked her. What is is, and how does Kambili answer? A family of 11 members went for a picnic at a park. There they saw a long straight bench that couldaccommodate all of them so they decided to sit on it. Now, the two youngest members of the family had anargument the previous day so they refused to sit together.What is the probability that out of all seating arrangements that are possible, one arrangement is pickedsuch that the two youngest members don't sit together? the real income of faculty and staff over this time because the price level was (fill in the blank) , which led to a in their purchasing power The measure of the largest angle in a triangle is 110 larger than the sum of the measures of the other two angles. The measure of the smallest angle is three-quarters the measure of the middle angle. Find the measure of each angle. four-year-old kitimbu has been tired, irritable, and inattentive for the last few months. because his diet lacks , he is likely suffering from . the average atomic mass between the two isotopes is 63.546 amu. calculate the relative atomic mass of 65 cu 14.9 - 15.1 EVALUATE PLEASE. which advanced spanning tree protocol (stp) feature prevents certain switch ports from connecting to other switches to prevent switching loops and unauthorized connections? The diagram shows the circle with equation x2 + y2 = 53AOA tangent to the circle is drawn at point A with coordinates (-2,7)Find an equation of the tangent at A. ______ are important because they provide utilities to consumers and have a significant positive impact on the economy.