Q: Two blocks are stacked on a table. The static friction coefficient between the blocks and between th...
A: Given, F = 10 N μ=0.2
Q: Exercise 1 2.1 The following data were recorded during a tensile test of a 14.0-mm-diameter mild ste...
A: Area, A = 0.25π(142) = 49π mm2Length, L = 50 mmStrain = Elongation/LengthStress = Load/Area Load ...
Q: The inside of a furnace wall is at 800°C and with the existing wall of material with thermal conduct...
A: Write the temperature of inside wall of the furnace. T1=800 °C In this problem, the value of h i...
Q: 2. Determine the vertical shear force and bending moment at A, B, C, D, and E. L 4 L/4 L/4 L/4 B C D...
A: To find: Vertical shear force at A, B, C, D and E bending moment at A, B, C, D and E
Q: Block A is connected to a fixed pin O with a string 100 mm long. The block and the channel are at re...
A:
Q: An ideal dual cycle has a compression ratio of 18 and a cut off ratio of 2.2. At the beginning of th...
A:
Q: 3- Air compressor compresses (7.8m/min) of air at (27°C) and (100kPa) to (925kPa). Determine the pow...
A: Given:- v1 = 7.8 m3/minT1 = 27 ip1 = 100 kPap2 = 925 kPa
Q: a) A 1:20 scale model of a surface vessel is used to test the influence of a proposed design on the ...
A: given data a scale of 1:20 drag force on the model = 6 Ib = 26.7 N model speed = 8 ft/sec = 2.44 m/...
Q: At room temperature (20˚C) a 0.5 mm gap exists between theends of the rods shown. At a later time wh...
A: GivenT1=20oCa=0.5mmT2=140oC
Q: An aluminum shaft of two segments is shown below. Determine the allowable torque if the shear stress...
A: Given, τmax=30 MPaLAB=1.5 mLBC=1.2 mdAB=90 mmdBC=60 mm
Q: Derive the expression for the maximum deflection of a simply supported beam of negligible weight c...
A:
Q: Please answer both subparts
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...
Q: a. Water and oil flow in horizontal pipelines. A double U-tube manometer is connected between the pi...
A:
Q: 600 mm 600 mm
A: given:
Q: How do you calculate the application point?
A: Diagram is not pretty clear... Just observe the process if you need to change data.. Then change ac...
Q: If block A is intended to move vertically at a constant rate of 4.1m/s, determine the rate (m/s) at ...
A: Given Data The velocity of the block A is: vA=4.1 m/s From the diagram the length of the rope inte...
Q: Figure shows two containers connected with two U- shaped piezometer. The upper U-shaped piezometer h...
A:
Q: Describe the common principle of potentiometer and strain gauge that gives these two transducer the ...
A: Potentiometer - The potentiometer is a type of displacement transducer. It can be of linear or ang...
Q: A two dimensional flow field is defined by y = y-x². Sketch the streamlines: y = 0, y = 2 and y %3D
A: A streamline is an imaginary curve drawn in space that the tangent drawn to this curve at any point ...
Q: The cold storage room is maintained at T; = -70 °C by two stage vapor-compression refrigeration unit...
A:
Q: A heat engine operating between two reservoirs receives energy Q₁=2100 KJ by heat transfer from a ho...
A: Given: The value of Q1 is 2100 kJ/kg. The value of Q2 is 500 kJ/kg. The temperature T1 is 2000 K. T...
Q: pls Show the complete solution and box your final answers. Use 4 decimal places in your solution and...
A: Given: Car A: Initial velocity; V1A = 25m/s deceleration; aA = -0.4 m/s2 Car B: Initial velocity; V...
Q: 1. In an ideal Rankine cycle steam enters the turbine at 8 MPa and 5000C. The condenser pressure is...
A: Given that, Pressure at the entery of the turbine, P1=8 MPa,Temperature at the entry of the turbine,...
Q: The rotation of the flywheel is governed by w=2√t where w is in rad/s and t is in sec. θ=3 rad when ...
A: Given: Rotation of the flywheel is governed by: ω =2t dθdt = ω =2t dθ = 2t*dt integrate both sides;...
Q: sg(water@25degree)=9.78kN/m^3 k=0.42
A: Given data: The volumetric flow rate is Q=150 L/mm ⇒Q=0.150/60Q=2.5×10-3 m3/s The pressure before th...
Q: Lagrange's equation is based on the kinetic energy of the robot. Select one: O True O False
A: There are two methods are available to determine the equation of a robot. 1 Lagrangian method 2. New...
Q: Air is compressed in a compressor from 30 C , 60% relative humidity , and 101kPa to 414kPa and then ...
A: The temperature of the compressor is given as, T1=30∘CT1=30+273 KT1=303 K The percentage of the rela...
Q: Water is pumped upwards from a 0.5 m diameter bed consisting of iron oxide particles with a density ...
A: Given:D=0.5 mρ=5300 Kg/m3d=1 mm
Q: 置一 with spring constants e= wn is the positive direction. fhess matrix K - e the external force whic...
A:
Q: A body weighing 5kg is attached to a very light bar as depicted below. The set-up is free to rotate ...
A:
Q: Show the real image of each temperature sensor, indicate its basic parts.
A: Given:- The temperature sensors are 5 types. they are: 1. Thermocouple 2. RTD 3. The...
Q: A) Explain the refrigerant charging process to the refrigeration cycle. In case a) Complete recharge...
A: (A) The refrigerant charging process is the process of replacement of gases when the system is repai...
Q: Solve what is asked on the problem below.
A: Q.1We know thatη=1−TLTHconsidering 1st cylinderT1=300KT2=600 Kη=1−300600=0.5η1=50%considering 2nd cy...
Q: Construction of pressure gauge used for measurement of air pressure in tyres.
A: The pressure gauge is defined as the instrument or measuring device that is utilized to gauge the pr...
Q: What is the solution of this problem?
A: I am finding Inverse Laplace of the given question I hope you like it and UPVOTE my answer, thanks!!...
Q: Please show any work and diagrams! Anything is helpful
A: Here we have to judge the nature of the oscillation of this system where spring is attached to a dir...
Q: Determine the reactions at the supports for the beam shown in Fig. 3.19(a).
A: In this problem we have one point load at C 160 kN and one UDL of 15 kNm over 6 m from A to B and w...
Q: Question 3: A 500kg satellite is orbiting the moon at 2200km radius measured from the center of the ...
A: please refer to the given images, and KINDLY UPVOTE this answer
Q: 1. What is temperature distribution inside the rod in-terms of “heat generation: qo, surface tempera...
A: 1. Given: Heat generation function qgen = q0 (1- r/R1) For flow across the cylinder, we have Tempera...
Q: Determine the elongation in a helical steel spring composed of 22 turns of 21.37-mm-diameter wire on...
A:
Q: A reciprocating engine of mass m1m1 is mounted on a fixed-fixed beam of length l, width a, thickness...
A:
Q: [2.37] The 1.5 m concrete post is reinforced with six steel bars, each with 28 mm diameter. Knowing ...
A:
Q: The summit of a mountain is 3290 m higher than a point in the foothills. Assume that the atmospheric...
A:
Q: Prove the formula for Hoop stress and longitudinal stress and also explain poisson ratio.
A: Prove the formula for Hoop stress and longitudinal stress
Q: I need answer in 1hr do it fast. A shell-and-tube heat exchanger is set at the one shell pass and t...
A: Given data:-Inlet temperature of air, Thi=90°COutlet temperature of air, The=50°Cmass flow rate of a...
Q: Find the centroid + 4 2 4
A: Divide given figure in different shapes. 1. Rectangle 2. Semicircle 3. Triangle
Q: As can be seen in the figure, the air conditioner working in a stable state keeps the indoor environ...
A:
Q: A plate 100 mm wide and 10 mm thick is to be welded with another plate by means of transverse weld...
A: Given Data⇒ Thickness of weld (t)=10 mm t=0.010 m Load (F)=70 KN Permissible tensile stress is ζper=...
Q: 2. The specimen heated indirectly via a water bath, why? 3. What is the principle methods of thermal...
A: Answering question 2 and 3 If you want another question to be answered, please repost the question w...
Q: Find the centroid 4 2 4 6.
A: Given: We will divide the given surface into three distinct areas A1, A2 and A3 as shown in the figu...
Step by step
Solved in 3 steps with 2 images
- Determine the rate of heat transfer per meter length to a light oil flowing through a 2.5-cm-ID, 60-cm-long copper tube at a velocity of 0.03 m/s. The oil enters the tube at 16C, and the tube is heated by steam condensing on its outer surface at atmospheric pressure with a heat transfer coefficient of 11.3 kW/m K. The properties of the oil at various temperatures are listed in the following table: Temperature, T(C) 15 30 40 65 100 (kg/m3) 912 912 896 880 864 c(kJ/kgK) 1.80 1.84 1.925 2.0 2.135 k(W/mK) 0.133 0.133 0.131 0.129 0.128 (kg/ms) 0.089 0.0414 0.023 0.00786 0.0033 Pr 1204 573 338 122 55In a thermal power plant, a horizontal copper pipe of "D" diameter, "L" length and thickness 1.9 cm enters into the boiler that has the thermal conductivity as 0.37 W/mK. The boiler is maintained at 102 °C and temperature of the water that flows inside the pipe is at 34°C. If the energy transfer (Q) is 100735 kJ in 7 hours. Determine the Heat transfer rate, Surface area of the pipe and Diameter & Length of the pipe, if D = 0.015 L .Indirect Cooling With Liquid Nitrogen. You are designing a system to cool an insulated silver plate of dimensions 2.00 cm × 2.00 cm × 0.60 cm. One end of a thermally insulated copper wire (diameter D = 2.70 mm and length L = 18.0 cm) is dipped into a vat of liquid nitrogen (T = 77.2 K), and the other end is attached to the bottom of the silver plate.(a) If the silver plate starts at room temperature (65.0 °F), what is the initial rate of heat flow between the plate and the liquid nitrogen reservoir?(b) Assuming the rate of heat flow calculated in part (a), estimate the temperature of the silver plate after 30.0 seconds.
- In a thermal power plant, a horizontal copper pipe of "D" diameter, "L" length and thickness 0.6 cm enters into the boiler that has the thermal conductivity as 0.33 W/mK. The boiler is maintained at 105C and temperature of the water that flows inside the pipe is at 28C. If the energy transfer (Q) is 118922 kJ in 6 hours. Determine the Heat transfer rate, Surface area of the pipe and Diameter & Length of the pipe, if D = 0.016 L. Change in Temperature (in K) = Heat Transfer Rate (in W) = Surface Area of the Pipe (m2) =Indirect Cooling With Liquid Nitrogen. You are designing a system to cool an insulated silver plate of dimensions 2.00 cm × 2.00 cm x 0.40 cm. One end of a thermally insulated copper wire (diameter D = 2.70 mm and length L = 12.0 cm) is dipped into a vat of liquid nitrogen (T = 77.2 K), and the other end is attached to the bottom of the silver plate. (a) If the silver plate starts at room temperature (73.0°F), what is the initial rate of heat flow between the plate and the liquid nitrogen reservoir? (b) Assuming the rate of heat flow calculated in part (a), estimate the temperature of the silver plate after 30.0 seconds.In a thermal power plant, a vertical copper pipe of "D" diameter, "H" height and thickness 1 cm enters into the boiler that has the thermal conductivity as 0.35 W/mK. The boiler is maintained at 102C and temperature of the water that flows inside the pipe is at 25C. If the energy transfer (Q) is 119031 kJ in 7 hours. Determine the Heat transfer rate, Surface area of the pipe and Diameter & Height of the pipe, if H = 27 D.
- steam exits the turbine of a steam power plant at 105 F and is to be condensed in a large condenser by cooling water flowing through copper pipes (k = 223 Btu/h-ft-F) of inner diameter 0.5 in. and outer diameter 0.7 in. at an average temperature of 70 F. The heat transfer of vaporization of water at 100F is 1037 Btu/lbm. The heat transfer coefficient are 1500 Btu/h-ft-F on the steam side and 35 Btu/h-ft-F on the water side. Determine the length of the tube required to condense steam at arate of 130 lbm/h.A liquid metal flows at a mass rate of 3 kg/s through a constant heat flux 5-cm-i.d tube in a nuclear reactor. The fluid at 473 K is to be heated with the tube wall 30 K above the fluid temperature. Determine the length of the tube required for a 1-K rise in bulk fluid temperature, using the following properties: p = 7.7 x 10^3 kg/m^3v = 8.0 x 10^-8 m^2/sCp = 130 J/(kg K)k = 12 W/mKPr = 0.011 Kaufman's correlation: Nu = 0,625.(Re.Pr)0,4the title of the book: Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer by: Mahmoud Massoud
- Steam at 150 ° C flows in a pipe having an inner radius of 45 mm and an outer radius of 55 mm. The convective heat transfer coefficient between the steam and the inner pipe wall is 2500 W / (m² ° C). The outer surface of the pipe exposed to ambient air is 20 ° C with a convective heat transfer coefficient of 10 W / (m² ° C). Assuming steady state, calculate the rate of heat transfer per meter of pipe from steam to air. Assume that the thermal conductivity of stainless steel is 15 W / (m ° C.). Steps of work according to example 4.16 Singh. a. Find the overall heat transfer coefficient = Answer W / m² ° C. b. Heat transfer rate per meter of pipe = Answer W / m.Steam at 150 ° C flows in a pipe having an inner radius of 50 mm and an outer radius of 55 mm. The convective heat transfer coefficient between the steam and the inner pipe wall is 2500 W / (m² ° C). The outer surface of the pipe exposed to ambient air is 25 ° C with a convective heat transfer coefficient of 10 W / (m² ° C). Assuming steady state, calculate the rate of heat transfer per meter of pipe from steam to air. Assume that the thermal conductivity of stainless steel is 15 W / (m ° C.). Steps of work according to example 4.16 Singh. a. Find the overall heat transfer coefficient = Answer W / m² ° C. b. Heat transfer rate per meter of pipe = AnswerIn a cylindrical nuclear reactor fuel rod, heat is generated internally according to the equation:Qg= local heat generation rate per unit volume in r R0= external radiusQ1= heat generation rate per unit volume in the center lineDetermine the temperature drop from the centerline to the surface, considering that the rod has a diameter of 25 mm, thermal conductivity of 26 W / (mK), and has a heat removal rate from its surface of 1570 kW / (m²). Tip 1: It is not necessary to determine the value of the constant C2. Tip 2: the volumetric rate of energy generated is such that: Q1 = 4 . Qs/ D (solve from the image equation)