1. Consider an object of characteristic length 0.01 m and a situation for which the temperature difference is 30°C. Evaluating thermophysical properties at the prescribed conditions, determine the Rayleigh number for the following fluids: (a) air at 1 atm and 100°C, (b) hydrogen at 1 atm and 100°C, (c) glycerin at 0°C, and (d) water at 25°C. Consider a vertical single pane window of width - boight - 1 m. The interior surface is ovnosed to.
Q: 3. An electric immersion heater, 10 mm in diameter and 300 mm long, is rated at 550 W. The…
A: The answer is provided below.
Q: 5. The drag force, fp, on a sphere located in a pipe through which a fluid is flowing is to be…
A:
Q: The transfer function of the mass-spring-damper system discussed above is determined to be: G(s) =…
A:
Q: Motiyo Add explanation
A: The objective of this problem is to determine the mass of the rod AB. The rod is in equilibrium,…
Q: What are the basic operating conditions (temperature, maximum and minimum operating pressures), the…
A: The objective of the question is to understand the basic operating and physical conditions for a…
Q: Consider a steel (Young's modulus E = 200 GP a) column hinged on both sides. Its height is 1.0 m and…
A: E=Modulus pf elasticityl=Length of the column A=Cross-sectional area
Q: a critical evaluation of the engineering applications solutions of the Leibnitz-Maclaurin method and…
A: The objective of this question is to critically evaluate the engineering applications of the…
Q: 7.1 What is condenser ? 7.2 What are the functions of a condenser in a thermal power plant? Give the…
A: 7.1 What is condenser ?7.2 What are the functions of a condenser in a thermal power plant? Give the…
Q: Problem 2 C B a A d The 54-N force P is applied perpendicular to the portion BC. Given a = 35.1 deg…
A: Magnitude of the force is given as:-Magnitude of the provided dimensions are:It is required to…
Q: 1.6-6 A steel plate of dimensions 2.5 x 1.2 x 0.1m is hoisted by a cable sling that has a clevis at…
A:
Q: 7.1 What is condenser ? 7.2 What are the functions of a condenser in a thermal power plant? Give the…
A: Condenser is a heat exchanger wherein steam is condensed either in direct contact with cooling water…
Q: For a loaded cantilever beam of uniform cross- section, the bending moment (in N-mm) along the…
A: The bending moment equation M(x)=5x2+10xCalculate the Shear force at x=10mm
Q: What is the main advantage of die casting over sand casting? A) Lower cost B) Higher dimensional…
A: What is the main advantage of die casting over sand casting?A) Lower costB) Higher dimensional…
Q: For the problem above: 1. Plot in MATLAB the output-input ratio, |G(iw), and phase lag, 4, as a…
A:
Q: Blocks A and B have a masses of 110 kg and 300 kg respectively (Figure 2) The coefficient of static…
A: Given data:Find:
Q: Derive the following equation for the 4-5-6-7 polynomial function. a 6 Ꮎ A s=h| 35 -84 +70 20 0 cam…
A: derivation is given in the solutionExplanation:
Q: Which of the following terms describes the temperature difference in Fo that must exist across the…
A: The answer is provided below.
Q: Q5. Three successive displacements A, B and C and the resultant vector sum of R. Solve for R and O.…
A: Three successive displacements A, B and C and the resultant vector sum of R. Solve for R and thita.…
Q: 3.14. Find the vorticity in polar coordinates for the following velocity com- ponents (a) v=r sin 0,…
A:
Q: Pravinbhai
A: The objective of the question is to calculate the required power of the pump in kilowatts (kW).
Q: The crane shown in the figure is lifting a 186-kg crate upward with an acceleration of 4.21 m/s².…
A:
Q: 2. A G10200 HR steel bar of thickness h is welded to a vertical support of the same material as…
A: h= 5 mmb= 50 mmd= 50 mmMaximum shear stress of this material, y = 100 Mpa (approx)
Q: 2.28. The three bars shown in Fig. 2-45 support the vertical load of 5000 lb. The bars are all…
A: Givenvertical load = 5000 lb temp of all three bars decreases
Q: Oxygen undergoes an adiabatic, reversible compression process from 300 K and 300 kPa to 960 kPa.…
A:
Q: 7. A person holds a m kg ball in his hand. The forearm is horizontal, as shown in Figure. The biceps…
A:
Q: The 15-kg sphere C is released from rest when 0 = 0° and the tension in the spring is F = 100 N.…
A: To finddetermine the speed of the sphere at the instant..Givensphere mass, tension in the spring,…
Q: Please provide all written work and FBD to learn from, thank you!
A: Ay = 8.25 kN, FBC = 10.4 kN (C), FHG = 9.1548 kN (T), FHC = 2.24 kN (T)Explanation:Step 1:Step…
Q: The purchasing manager of Flat Screen TV wants to determine the most optimum inventory practice for…
A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: 3. (hint-one region determinate) y, v(x) L Wo B X
A: Detailed solution is provided belowPlease read carefullyThank you. Explanation:Step 1:Step 2:Step 3:…
Q: Assume that coming into a pipe there exists a Mach 0.5 flow at 101325 Pa of pressure and 300 K…
A: M=1.0 for a given initial conditionMach 0.5 flow, 101325 Pa pressure, 300 K temperature, γ=1.4a…
Q: The Quantum Leap Company has set up a weighted scoring matrix for evaluation of potential projects.…
A: The weight for "Strong Sponsor' has been changed from 2.0 to 5.0
Q: Baffles are provided in heat exchangers to increase the
A: Baffles are provided in the heat exchanger to increase the heat transfer rate.Baffles are also used…
Q: A diatomic gas engine contracts isothermally from V2 = 2.00 m³ and p2 = 172 kPa to a volume V₁ and…
A:
Q: Write the Advantages of supercritical boiler and disadvantages of supercritical boiler.
A: (1) Heat transfer rates are considerably large compared to subcritical boilers.(2) There is no drum,…
Q: The Products and Service Offered are Electric Vehicles (EVs): Charging Infrastructure Solutions:…
A: To find: The product or service that your business proposes to offer, assess and discuss the three…
Q: The instant shown, bar AB has an angular velocity of 6.5 rad/s and an angular acceleration of 4…
A:
Q: 4. Over a certain range of pressures and temperatures the equation of state of a cer is given with…
A: The pressure of substance is are specific volume, gas constant, temperature and pressure…
Q: Q4/ Determine the equation of elastic curve of supporting she ig. stributed load of w L-a Deam art…
A: The question is not clearly visible and also missing important data.So I have made assumption that…
Q: Hydro Tasmania has initiated the Battery of the Nation (BotN) strategic initiative to investigate…
A: Disclaimer from Bartleby:Hello. Since your question has multiple sub-parts, we will solve the first…
Q: please show all steps, not Ai generated
A: Summary/:-Total emissive power has been calculatedExplanation:
Q: What is the diameter of line shaft that transmit 180kw at 25 rps? a . 2.05in b . 3.05…
A: Summary:- the diameter will be 1.83 inExplanation:
Q: A suitable electric pump in an electric circuit is a generator. chemical battery. both of these…
A: A suitable electric pump in an electric circuit is aA) generator.B) chemical battery.C) both of…
Q: Two disks, each of mass m and radius r are connected as shown by a continuous chain belt of…
A: Given,the mass of the disk is m.The radius of the disk is r.
Q: An 8 m/s wind enters a wind turbine rotor with a diameter of 36 m. Assume the air density 1.2 kg/m3…
A: The objective of the question is to calculate the power of the incoming wind, the maximum power that…
Q: 5. A horizontal uninsulated steam pipe passes through a large room whose wall and ambient air are at…
A: Given, (Stefan-Boltzmann constant)The heat loss from the pipe is calculated as -…
Q: The bracket is held to the wall using three A-36 steel bolts at B, C, and D Each bolt has a diameter…
A: To findif a force P = 450 lb is placed on the bracket as shown, determine how far s, the top bracket…
Q: 5. Consider a Pitot probe in high-speed flow.(a) Give the value of the stagnation pressure to the…
A: Given question is explained below :Explanation:a) For a Pitot probe in high-speed flow with a Mach…
Q: A spring with a mass of 1 kg has a spring constant 43 kg/s2. If the spring begins at equilibrium…
A: The mass is The spring constant is The velocity at equilibrium position is
Q: Solve par d,e,f
A: d) 0.0455 kg/se) Waste heat transferred 8.3674 kw Compressor work input 2.9687 kW…
Q: The purchasing manager of Flat Screen TV wants to determine the most optimum inventory practice for…
A: Given:The annual demand, The ordering cost, The holding cost, The lead time, The Working days per…
Heat transfer. Show all steps for solution
Step by step
Solved in 1 steps with 2 images
- A food product with 73% moisture content in a 10 cm diameter can wants to be frozen. The density of the product is 970 kg / m³, the thermal conductivity is 1.2 W / (m K), and the initial freezing temperature is -1.75 ° C. After 15 hours in the freezing medium -25 ° C, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder. h = Answer W / (m² K).A food product with 73% moisture content in a 10 cm diameter can wants to be frozen. The density of the product is 970 kg / m³, the thermal conductivity is 1.2 W / (m K), and the initial freezing temperature is -2.25 ° C. After 15 hours in the freezing medium -35 ° C, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder. h = .... W / (m² K).EXTERNAL FORCED CONVECTION A 10-cm-diameter, 30-cm-high cylindrical bottle contains cold water at 38°C. The bottle is placed in windy air at 27°C. The water temperature is measured to be 11°C after 45 min of cooling. Disregarding radiation effects and heat transfer from the top and bottom surfaces, estimate the average wind velocity. Please, I need the solution from fundamental concepts of how the heat flow behaves in the system. That it be answered with theory of the subject
- Partially-frozen ice cream is being placed in a package before completion of the freezing process. The package has dimensions of 8 cm by 10 cm by 20 cm and is placed in air- blast freezing with convective heat coefficient of 50 W/(m2 K) for freezing. The product temperature is -5°C when placed in the package, and the air temperature is -25°C. The product density is 700 kg/m3, the thermal conductivity (frozen) is 1.2 W/(m K), and the specific heat of the frozen product is 1.9 kJ/(kg K). If the latent heat to be removed during blast freezing is 100 kJ/kg, estimate the freezing time.An electrically heated plate 15cm high and 10cm wide is maintained at140°C. Estimate the rate of heat dissipation from both sides of the plate in an atmospheric at 20°C, if the radiation heat transfer co-efficient is 8.72W / m² – K. For air at the mean temperature of 80°C; Take kinematic viscosity= 21.09x10 m² /s, Pr 0.692, and k = 0.0305 W/m-K.8 mm diameter carbon steel (ρ = 7833 kg / m3, k = 54 W / (m K), Cp = 0.466 kJ / (kg K)) ball-shaped balls at 35°C with a temperature of 900°C for annealing heat treatment put in the oven. During this heating process, the coefficient of convection is 40 W / (m2K). The balls are wanted to be brought to a temperature of about 900°C in this oven. When the balls reach 899°C, the heating process is considered sufficient and taken from the oven. a) Find the time required for the balls to reach 899°C. b) After the balls are taken out of the oven, they are left in the ambient temperature and cooled to 100°C. Find the heat released by a ball during this cooling process.
- Number 3 A food product with 80% moisture content in a 7 cm diameter can wants to be frozen. The density of the product is 1000 kg/m³, the thermal conductivity is 1.0 W/(m²K), and the initial freezing temperature is -1.75°C. After 8 hours in the freezing medium -25°C, the product temperature becomes -10°C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder. h= answer in W/(m²K)Air at 24°C is blown over a hot pipe with a surface area of 2.94 m2 to dissipate 924 W of heat energy. What is the minimum convection heat transfer coefficient that will ensure that the temperature of the pipe surface is less than 45°C [round your final answer to two decimal places]?A 200mm diameter spherical steel ball initially at 500°C is rapidly immersed in an oil bath that is at 20°C. The convection coefficient is h = 600W/m²-K, and the steel ball has the following properties: c= 500J/kg-K, p= 7000kg/m³, k=30W/m-K. Determine the time taken (min) for temperature at the surface of the ball to drop to 100°C.
- Write a question about the amount heat carried away by convection after you have taken X= 14 breaths on a cold day. Feel free to look up reasonable estimates of temperature, the heat capacity of air, and lung capacity. Show work please and thank you in advanceIf forced convection uses Reynolds number to account for fluid movement during forced convection, what dimensionless number is used for natural convection?A food product with 73% moisture content is being frozen in a 7 cm-diameter can. The product density is 970 kg/m³, the thermal conductivity is 1.2 W/(m K), and the initial freezing temperature is -2.5°C. After 11 hour in the -40°C freezing medium, the product temperature is -10°C. Estimate the convective heat-transfer coefficient for the freezing medium. Assume the can has infinite height. a. h = ... W/m² K