The outside surface of a satellite with an emissivity of 0.90 receives a solar radiant flux of 1260 W/m2, while the inside surface is perfectly insulated (assumed). At steady state conditions, what is the emperature of the outside surface of the satellite? Express your answer in °C.
Q: Construct didactic sketches, showing the operating principle When you select a refrigerant for a…
A:
Q: Why is it economical to invest in a Safety and Health Program?
A: Given question: Why is it economical to invest in a Safety and Health Program. Given question is…
Q: Q1/ Determine the exit velocity of Air enters a diffuser at (80 kPa, 27°C) and (440 m/s) with a flow…
A:
Q: The cable supports the three loads shown. Determine the sags yB and yp of B and D. Take Pi = 800 N,…
A: According to the details provided in the question, we need to calculate Yd and Yb
Q: S[ wdx dy. Evaluate the iterated integral 32 C) 3 A) 15 B) 12 D) 10
A:
Q: Q 5. If you have a product as shown below, calculate the diameter of blank. 50 mm
A:
Q: Question 1) For the slider-crank mechanism. Solve Analvtically for the position of the slider O4A.…
A:
Q: 3.30 A solid steel shaft transmits 20 hp while running at 120 rev/min. Find the smallest safe…
A:
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: Attitude, environment, and system are a factor in the workplace that influence by a safety culture.…
A: For the safety culture model:- An Organizational atm. where S & H are understood and is…
Q: A reheat cycle with two stages of reheating is executed, with steam expanding initially from 2250…
A:
Q: Calculate the frictional-15 pressure drop for a smooth steel pipe with the following…
A: Find the pressure drop due to fluid friction.
Q: 3. A gas is under pressure of 40 bar abs at 40°c. a. Compute the pressure in kPa b. Compute the gage…
A:
Q: Question 1 Pulleys A and B with the dimension of 66 mm in diameter are connected to solid shafts AB…
A: Find the shear stress in the shafts and angle of twist at point A.
Q: . A 50-g mass is suspended by a spring attached to the ceiling, such that hen it is at rest, it is…
A:
Q: Compute the magnitude of the applied moment M for equilibrium of the system in the current…
A: Force in BC:
Q: 33. Consider the region bounded by the curve x = e' - 2, y= 2, and the y-axis, as shown. What is the…
A:
Q: The load is supported by the four 304 stainless stell wires that are connected to the rigid members…
A: Force calculations:
Q: A counter flow heat exchanger operates in a stable state, ignoring kinetic and potential effects.…
A: Given Data The liquid water temperature is: T1=15°C=288 K The outlet temperature of the water is:…
Q: A ball is thrown so that the motion is defined by the equations x = 4t and y = 3+6t-4.87t^2…
A: Find the horizontal distance travelled by the ball before hitting the ground.
Q: 20. A light is placed on a horizontal ground 40 ft from a building. A man 6 ft tall walks from the…
A:
Q: Aside from iron and carbon this metal constituents adds mechanical properties to the metal Some…
A:
Q: Problem 3: A submersible deep-well pump delivers 745 gal/ h of water through a 1-in Schedule 40 pipe…
A: Given Data The flow rate of water is:Q=745 gal/h=0.0276644 ft3/s The head loss in pipe is:hL=10.5…
Q: 3. In the given 15.0 meter slab and inclined 5 °with the horizontal, the ends are resting on…
A:
Q: A heat pump maintains a dwelling at 68°F. When operating steadily, the power input to the heat pump…
A:
Q: A steam power plant operates under a reheat-regenerative Rankine cycle that utilizes 162 MTPH of…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: A mass weighing 16 pounds stretches a spring feet. The mass is initially released from rest from a…
A:
Q: Describe the behavior of tested materials (mild steel and aluminium) as it responds to increasing…
A: following is the answer to the above problem-
Q: A rigid container holding superheated vapor at 4.0 MPa and 700°C is allowed to cooled naturally…
A: GivenP1=4MPaT1=700oCT2=180oC
Q: (a) Describe the features, components, electric propulsion systems, and working principles of…
A: The operation of an electric car is based on a fundamental scientific principle: energy…
Q: The bent rod ABCDE rotates about a line joining Points A and E with a constant angular velocity of 6…
A: Given Angular velocity = 6 rad/s Counter clockwise from A and clockwise from E To find Velocity at C…
Q: a) A basement refrigerator is used to store cool beverages during the long hot summer. The…
A: following is the answer to the above problem-
Q: Example 3.7: For the rectification in previous example, where a benzene-toluene feed is being…
A:
Q: An open container of oil rests on the flatbed of a truck that is traveling along a horizontal road…
A:
Q: The motion of a particle is defined by the relation x = (at + b)^3 where x and t are expressed in…
A: Find the velocity of particle at t = 7.21 sec.
Q: The fire boat discharges two streams of seawater, each at a flow of 0.35 m^3 and with a nozzle…
A: Given data:- Flow rate = 0.35 m^3/s Velocity = 40 m/s Density of sea water = 1020 kg/m^3 Find the…
Q: A mixture of 1 kg of oxygen and 2 kg of nitrogen occupies 1.2 m' volume at temperature 300 K.…
A: Mass of oxygen, moxygen= 1 kg Mass of nitrogen, mnitrogen= 2 kg Total volume, V= 1.2 m3 Temperature,…
Q: Q4. If you have a rod with an initial cross-sectional area of 10 mm, final cross- sectional area is…
A:
Q: Q2/ A plane wall (K =17 W/m.°C ) with (60 mm) thick. Both sides of the wall are insulated with ( 2…
A:
Q: Presents the diagram of the problem, necessary formulas, clearance and numerical solution: A metal…
A:
Q: A heat pump using refrigerant-134a heats a house by using underground water at 8°C as the heat…
A:
Q: A particle moves along a path according to the equations x = 9 - (t^4)/9 and y = (t^2)/3 where x and…
A:
Q: Q.1(a) Discuss the principles of overall mechanical energy balance formalism.
A: The overall mechanical energy balance principle is explained by Bernoulli's principle. It states…
Q: Q1/ A refrigeration system operates according to reversed Carnot cycle, low temperature is -20 °C,…
A:
Q: A refrigeration cycle operating as shown in figure below has Qout = 1700 Btu and Wcycle = 1000 Btu.…
A:
Q: In fig. shown, find the reaction force on parř (Bc) . 207kpd EL = 10.7 D=75mm oiL Y.d =0.88 EL=6.1m…
A:
Q: The figure below shows two plates connected by two rivets. The plates are made from aluminum 6061-T6…
A:
Q: r the assembly shown in the figure helow, Determine the state int A on the cross section of the pipe…
A:
Q: Administrative controls are one of six elements in hierarchy of control. Which of the following…
A: Job Rotation and forming a safety committee represent the improvement of OSH categorized under…
Q: Consider a uniform rod of 1m length having rectangular cross section (see figure) with one end…
A:
Step by step
Solved in 2 steps with 2 images
- 2.34 Show that the temperature distribution in a sphere of radius . made of a homogeneous material in which energy is released at a uniform rate per unit volume , isConsider steady heat transfer between two large parallel plates at constant temperatures T1 = 300 K and T2 = 200 K that are L = 1 cm apart, as shown below. Assuming the surface to be black, determine the rate of heat transfer between the plates per unit surface area assuming the gap between the plates is a) filled with still air with k = 0.0219 W/m°C, b) free flowing air with h = 7.5 W/m2°C, c) evacuated, d) filled with urethane insulation with k = 0.026 W/m°C, and e) filled with superinsulation that has an apparent thermal conductivity k = 0.00002 W/m°CConsider steady heat transfer between two large parallel plates at constant temperatures T1 = 300 K and T2 = 200 K that are L = 1 cm apart, as shown below. Assuming the surface to be black, determine the rate of heat transfer between the plates per unit surface area assuming the gap between the plates is a) filled with still air with k = 0.0219 W/m°C, b) free flowing air with h = 7.5 W/m2°C, c) evacuated, d) filled with urethane insulation with k = 0.026 W/m°C, and e) filled with superinsulation that has an apparent thermal conductivity k = 0.00002 W/m°C PLEASE ANSWER LETTER D AND E, THANK YOU
- A 3-m2 hot black surface at 80°C is losing heat to the surrounding air at 25°C by convection with a convection heat transfer coefficient of 12 W/m2 ·°C, and by radiation to the surrounding surfaces at 15°C. The total rate of heat loss from the surface is (a) 1987 W (b) 2239 W (c) 2348 W (d) 3451 W (e) 3811 WConsider steady heat transfer between two large parallel plates at constant temperatures T1 = 300 K and T2 = 200 K that are L = 1 cm apart, as shown below. Assuming the surface to be black, determine the rate of heat transfer between the plates per unit surface area assuming the gap between the plates is a) filled with still air with k = 0.0219 W/moC, b) free flowing air with h = 7.5 W/m2oC, c) evacuated, d) filled with urethane insulation with k = 0.026 W/moC, and e) filled with superinsulation that has an apparent thermal conductivity k = 0.00002 W/moCA 3-m2 hot black surface at 80°C is losing heat to the surrounding air at 25°C by convection with a convection heat transfer coefficient of 12 W/m2.°C, and by radiation to the surrounding surfaces at 15°C. Determine the total rate of heat loss from the surface. ***Sketch the diagram for the system if applicable and show pertinent solutions.***
- Consider steady heat transfer between two large parallel plates at constant temperatures T1 = 300 K and T2 = 200 K that are L = 1 cm apart, as shown below. Assuming the surface to be black, determine the rate of heat transfer between the plates per unit surface area assuming the gap between the plates is a) filled with still air with k = 0.0219 W/moC, b) free-flowing air with h = 7.5 W/m2oC, c) evacuated, d) filled with urethane insulation with k = 0.026 W/moC, and e) filled with superinsulation that has an apparent thermal conductivity k = 0.00002 W/moCA 3 m2 hot black surface at 80 C is losing heat to the surrounding air at 25 C by convection with a convection heat coefficient of 12 W/m2.C and by radiation to the surrounding surfaces at 15 C. Calculate the total rate of heat loss from the surface in watts.Consider steady heat transfer between two large parallel plates at constant temperatures T1 = 300 K and T2 = 200 K that are L = 1 cm apart, as shown below. Assuming the surface to be black, determine the rate of heat transfer between the plates per unit surface area assuming the gap between the plates is free flowing air with h = 7.5 W/m2oC
- 13. A thin flat plate is hanging on a string such that its top surface is exposed to a solar radiant flux of 800 W/m2. Both its top surface and bottom surface are exposed to a combined convection-radiation environment with combined h = 21.1 W/m²K. What is the temperature of the plate under steady state conditions if the ambient air temperature is 39°C? Express your answer in °C.2. (a) Consider a 25-cm-diameter spherical ball at 700 K suspended in air and assume the emissivity of the ball to be ε=0.95. Calculate: (i) the total emissive power in kW/m2; (ii) the total amount of radiation emitted by the ball in 3 minutes. (b) The inner and outer surfaces of a 25-cm-thick wall are at 27 oC and 45 oC, respectively. The outer surface of the wall exchanges heat by radiation with surrounding surfaces at 40 oC, and convection with ambient air at 42 oC with convection heat transfer coefficient of 9.0 W/m2 K. Solar radiation incident on the surface is at a rate of 150 W/m2. If the emissivity and the solar absorptivity of the outer surface are 0.75 and 0.85, respectively: (i) write the expression of the energy balance at the outer surface;…The roof of an electrically heated home is 12m long, 16m wide, and 0.50m thick, and is made of a flat layer concrete whose thermal conductivity is k=0.8W/m 2 ·°C. The temperature of the inner and outer surfaces of the roof one night are measured to be 12°C and 1°C, respectively, for a period of 12 hours. Determine a) the rate of heat loss through the roof that night b) the cost of that heat loss to the home owner if the cost of electricity is $0.14/kWh.