A greenhouse 20m long and 15m wide has a nearly flat roof 3m above the floor level. When the sun is directly overhead the solar flux is 1,000 W/m^2. If the glass roof has an emissivity of 0.9 and the convective losses are 0.8 times the radiation losses, what is the temperature in the greenhouse?

A greenhouse 20m long and 15m wide has a nearly flat roof 3m above the floor level. When the sun is directly overhead the solar flux is 1,000 W/m^2. If the glass roof has an emissivity of 0.9 and the convective losses are 0.8 times the radiation losses, what is the temperature in the greenhouse?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.31P: A spherical communications satellite, 2 m in diameter, is placed in orbit around the earth. The...

See similar textbooks

Related questions

Q: Oil SAE 30 at 15.6 °C flows steadily through the 2 mm gap between two fixed, horizontal, parallel…

Q: What could be found equal in both the true and an engineering stress strain curves? Select one: A)…

A: We have to discuss that what could be found equal in both the true and an engineering stress strain…

Q: A block weighing 800 N is acted upon by a force P as shown. Knowing that the coefficient of friction…

Q: diameter duct is maintained at a constant temperature of 245c by hot combustion gases flowing inside…

A: calculat the lenght by using the following eqation qL=hπdL(Tw-T∞)L=qhπdL(Tw-T∞) ..........(1)here ,…

Q: An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid…

Q: Water is transferred from one reservoir to another through centrifugal pup shown in the figure. The…

Q: Link AB rotates on a counterclockwise manner with angular velocity of 6 rad/s. Then, slider C moves…

A: Given:Angular velocity of link AB, ωAB=6 rad/sSpeed of slider C, vC=4t2 m/stime, t=0.75 s

Q: Determine whether the first part of statement will INCREASE, DECREASE or have NO EFFECT in the…

Q: Q3/ The brakes of a truck travelling at 43 km/h are suddenly applied to avoid a vehicle which has…

Q: 11.3-6 A horizontal beam AB is pin-supported at end A and carries a clockwise moment M at joint B,…

Q: The spherical LPG storage tank shown in Figure 3(b) has the following design specifications: Tank…

A: Given data Diameter of spherical tank = 22 mShell plate thickness = 24 mm = 24 x 10-3 mYield stress…

Q: An assembly of a steel bar enclosed within an aluminium alloy tube is shown in Figure 1(b). The tube…

A: Tensile strain is the deformation or elongation of a solid body caused by a tensile force or stress.…

Q: rmine the fo

A: take section as shown ∑M=0FEF(4) +[60(cos(20))]…

Q: An open coiled heilcal spring made of 6 mm diam- eter steel wire and 60 mm mean coil diameter, with…

Q: In the truss system shown, calculate (a) the reations at support A and I, (b) The forces in each…

A: Only normal reactions will be obtained on these two supports At I there will be two X and Y…

Q: 50 mm 10 mm Specimen 20 mm HCL - 6 Molar 30 g mass = 60 mm Calculate the corrosion rate in…

A: given data ,Time=22 daysfinal mass(m)=15 kgrate of corrsim=change in surface densitytime…

Q: Due to surface tension , water from faucet tapers from a diameter of 0.5 in to 0.3 in. after falling…

A: Given that: Water from faucet tapers from a diameter of 0.5 in to 0.3 in. after falling 10 in. It is…

Q: Two frictionless balls strike each other as shown. The coefficient of restitution between the balls…

Q: - Portions AB and CD have flexural rigidity EI, and portion BC has flexural rigidity 3EL Determine…

Q: The slendar rod of mass m and length L is connected with a block of mass mg through the pin A. The…

Q: A sharp-edged orifice in the vertical wall of a large tank has a diameter of 25 mm. The coefficient…

Q: t. Which of the following is a correct statement: Select one: O The greater the final hight of the…

Q: Figure Q4 shows the values of the normal and shear stresses acting on a certain stress element which…

A: Given: Normal Stress in x direction→σx=-1.5 MPa Normal Stress in y direction→σy=1 MPa Shear stress…

Q: 3. A vapour compression refrigerator uses R-12 as refrigerant and the liquid evaporates in the…

A: Given: h1 = 180.88 kJ/kg h3 = h4 = 45.4 kJ/kg, h1 = 191.76 kJ/kg, s1 = 0.7051 kJ/kg K sg2 = 0.6921…

Q: Ql. Water at 15 MPa, 150°C, is throttled adiabatically LSMP through a valve to 200 kPa The inlet…

Q: A large plate of 0.5 m thickness and constant thermal conductivity of k=60 W/m⋅K in which heat is…

Q: A cantilever beam AB with a built-in restraint at end A is subjected to a combination of loads as…

Q: I need a clear step by step answer please

A: Grain size is the dimension of a grain in a polycrystalline metal. Grain size affects majority of…

Q: 3. A scoop carries 610 kg of load with center of mass at G. Neglecting the mass of the members,…

Q: Find Polantial enery

Q: 4. Determine the deflection of end C of the 100-mm-diameter solid circular shaft. T 200 GPa. B

A: The portion BC can be considered as a cantilever beam with a load of 6KN acting at its end C. Now by…

Q: (a) Distinguish between semi-floating and fully-floating rear axles with the aid of suitable…

A: Given question Distinguish between semi-floating and fully-floating rear axles with the air of…

Q: A homogeneous cylinder is submerged into two layers of liquid composed of water at the top layer and…

Q: Question 1) For the slider-crank mechanism. Solve Analytically for the position of the slider O4A.…

Q: 40 m/s) with a flow rate of (5 kg/s) and leaves the diffuser at (42°C). The exit oss section area of…

Q: A steel rod 3 m long is secured between two walls, if the load on the rod at( 10°C ). Determine the…

Q: the Velocity of car A as observed by an occupant in car B. Illustrate the solution with a schematic…

Q: A diesel engine consumed 945 liters of fuel per day at 35°C. If the fuel was purchased at 15.6°C and…

A: Given:Fuel consumption, m=945 L/dayRate, R=P 29/L

Q: A semi-circular vertical plate is partially submerged in the water as shown in the figure. What is…

A: Find the force on the plate due to hydrostatic pressure.

Q: Carbon dioxide (CO2) contained in a piston-cylinder arrangement, initially at 6 bar and 400 K,…

Q: a 2cm diameter copper meltallic element at an initial uniform temperature of 60 C is submerged in…

A: INTRODUCTION : Whenever the solid body having the body mass (m), volume (v), density (p), specific…

Q: Please answer the Mechanical Engineering question with a complete and legible solution. Thank you

A: Bending moment is defined as the reaction which is induced in a particular structural element on…

Q: Identify the term being asked and write your answer on the sheet provided. 1. A part of the Lathe on…

A: A lathe machine is a machine tool that removes metal from a workpiece to give it the shape and size…

Q: A bituminous coal has the following composition: C = 71.5% H = 5.0% O = 7.0% N = 1.3% S = 3% Ash =…

Q: Briefly describe the following types of primary bonding: (a) ionic, (b) covalent, and (c) metallic.…

A: Disclaimer: Since you have posted multiple questions we will solve the first question for you. If…

Q: Calculate the y-coordinate of the centroid of the shaded area. The triangle is equilateral. 31 70…

A: Find the centroid of the shaded area.

Q: Question 1 The truck shown in Figure 1 is traveling at vo = 100 km/h when the driver slams on the…

Q: Q2/ Use Bisection method to determine the mass of the bungee jumper with drag coefficient (Ca=0.25…

Q: Select the reaction forces in a roller support. Horizontal Reaction Moment Reaction Vertical…

Q: Two shafts the axes of which intersect but are inclined to each other at 20 degree connected by…

A: Given data The angle between the two shafts = α = 20°We have to find at what position in the…

Question

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

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

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

1.11 Calculate the heat loss through a glass window 7-mm thick if the inner surface temperature is 20°C and the outer surface temperature is 17°C. Comment on the possible effect of radiation on your answer.
1.13 If the outer air temperature in Problem is –2°C, calculate the convection heat transfer coefficient between the outer surface of the window and the air, assuming radiation is negligible.
A spherical communications satellite, 2 m in diameter, is placed in orbit around the earth. The satellite generates 1000 W of internal power from a small nuclear generator. If the surface of the satellite has an emittance of 0.3, and is shaded from solar radiation by the earth, estimate its surface temperature.
The solar power striking Earth every day averages 168watts per square meter. The highest ever recorded electricalpower usage in New York City was 13,200 MW. A recordestablished in July of 2013. Considering that present technologyfor solar energy conversion is about 10% efficient,from how many square meters of land must sunlight becollected in order to provide this peak power? (For comparison,the total area of New York City is 830 km2.)
Calculate the heat loss through a 1-m by 3-m glass window 7mm thick if he inner surfacetemperatures is 20C and outer surface temperature is 17C. Sketch the figure.
An engineer proposes to decrease the gap between the windows of double pane window to decrease heat transfer. Is it good approach or not? a) Yes, because by this way, less air will be trapped and therefore better insulation b) No, because by this way, radiation heat transfer will increase c) Yes, because by this way, radiation heat transfer will decrease d) No, because by this way, current loops will be created inside the gap e) Not sufficient information
An engineer proposes to decrease the gap between the windows of double pane window to decrease heat transfer. Is it good approach or not? No, because by this way, radiation heat transfer will increase No, because by this way, current loops will be created inside the gap Yes, because by this way, less air will be trapped and therefore better insulation Not sufficient information Yes, because by this way, radiation heat transfer will decrease
Radiation from a small opening from an isothermal enclosure can be considered as _______.
Why does the shape of the passenger cabin windows on modern airplanes are rounded or elliptical? Why can’t it be a square or any shape that has edges? Explain and discuss your answer.
A concrete ball of radius 2.32 m and emissivity 0.620 is heated to 123°C. (a) Convert the given temperature to Kelvin. (Enter your answer to at least three significant figures.) ?K (b) What is the surface area (in m2) of the ball? ?m2 (c) If the ambient temperature is 26.0°C, what net power (in W) does the ball radiate? ?W
The temperature of a tank in the form of liquid nitrogen is -10 ° C. Tank diameter is 16 cm. The amount of heat lost by convection and radiation from the tank to the environment is 65.5 W / m. Calculate the temperature of the environment where the tank is located .h = 4.35 W / m2K, e= 1.
A 1.2 m wide and 5.1 m long solar collector is mounted to a roof. Now the average surface temperature of the solar collector is measured to be 50 oC. The effective surrounding sky temperature is 8 oC. If the emissivity of the collector is 0.88, determine the rate of heat transfer from the collector to the surroundings due to radiation.