What is(roughness)? what is its effect on heat transfer?

Q: Figure Q3 shows a spring-mass system composed of three masses suspended vertically by a series of…

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Q: 5. Two helical coil springs are made from a steel bar radius of 20 mm. One spring has an outer and…

A: as per our guidelines, I solved 1st 4 parts only

Q: The oil tanks in Tinyland are only 160 cm high, and they discharge to the Tinyland oil truck through…

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Q: A hydraulic motor produces 240 N-m of torque when operating at 18 MPa. If the motor's mechanical…

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Q: Q3 Figure Q3 shows a spring-mass system composed of three masses suspended vertically by a series of…

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Q: A one-shell, two-tube pass shell and tube heat exchanger has 1580 tubes with di = 13 mm and do = 16…

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Q: An inward flow radial turbine shown in the figure below has a nozzle angle, a, of 60" and an inlet…

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Q: 22. Write the Miller Indices for the following planes. ja2 ja2 a3

A: solution to first question 22 as per our company policy: To find: Miller indices of the given…

Q: (Single pipe with turbine) Water drains from a pressurized tank through a pipe system as shown in…

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Q: 25. A sample of an alkali metal that has a bcc unit cell is found to have a miass of 1.000 g and a…

A: Given DataP=0.980 atmT=23°CV=539.29mLm=1gram

Q: A prismatic wing box is constructed of two cylindrical tubes (each of thickness welded to top and…

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Q: Air at standard atmospheric condition flows through a pipe at a velocity of 20 m/s, which then…

A: Ans: 995 Pa

Q: A shaft and its associated rotating parts has a moment of inertia of 50 kg m2. The angular…

A: Given Data: Moment of inertia of shaft and associated parts, I=50 kg. m2 Torque, T=5 kN.m To…

Q: effect on heat transfer?Explain tl with the illustration that shows i effect on the thickness of the

A: A groove is a long, narrow depression formed into a material for the purpose of allowing another…

Q: A 5-stage compressor compress 30,000 cfm of air from 15to 45 psia. If each stage operated…

A: Given: The number of stages, n = 5 The volume flow rate, V = 30,000 cfm The inlet pressure, P1 = 15…

Q: Determine the required thickness of member BC and the diameter of the pins at A and B if the…

A: Consider the free body diagram shown below for the member AB.

Q: where m is the mass of an object, is the acceleration of an object, F, is downward force dt? and F,…

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Q: A pump draws 30-°C water at 0.5 liters per second from a pressurized tank where the air pressure…

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Q: Can you please show the complete solution and free body diagram of the image below. Thanks!…

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Q: determine the tool life

A: Given data;   Tool changing time, Ttc=19 min   Taylor's tool life exponent, n= 0.3 Find tool life…

Q: net buoyancy force

A: Given; An aluminium alloy; Density,ρ=2600 kg/m3Casting is to be produced a cylindrical hole of,…

Q: 5-9. By applying a force F, a saline solution is ejected from the 15-mm-diameter syringe through a…

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Q: Discuss the stress-strain diagram b. Step-by-step solution of 3 problems involving stress-strain…

A: A stress strain diagram, also known as a stress strain curve, is a diagram that depicts the…

Q: 4. The tapered shaft is made from E- 36 steel ( G = 80 GPa ), and has a radius which can be…

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Q: A piece of the pipe 300 mm long weighing 13 N and having i.d of 51 mm is slipped over a vertical…

A: Find the velocity of pipe .

Q: Determine the magnitude of force F in cable AB in order to produce a moment of 1250 Nm about the…

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Q: If a twisting moment of 10,000 lb-in is impressed upon a 1 and 3/4 inch diameter shaft, what is the…

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Q: Given data : U-2 m/s a-3.3 m/s2 t-3 Find final velocity

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Q: Hooke's Law Part B - Calculate the elongation under load A bar with a solid square cross-section is…

A: Find the total elongation of bar and permanent change in length of bar.

Q: .    Steam is supplied to a two-stage turbine at 140 bar and 400C. It expands isentropic ally until…

A: Mass flow rate  The mass flow rate of steam required to create 1 kW net work output is characterized…

Q: A shaft is required to transmit 1 MW power at 240 r.p.m. The shaft must not twist more than 1 degree…

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Q: Problem 2 pts 1-D Heat Transfer with Convection. The solid material is subjected to a temperature…

A: Given : To find : Temperature distribution

Q: What is the atmospheric pressure? kPa Required informetion Ar in a tank at 120 kPa and 300 K…

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Q: Engine oil at 100°C and a velocity of 0.15 m/s flows over both surfaces of a 1.1-m-long flat plate…

A: Given Data The temperature of the engine oil is: T∞=100°C The velocity is: V=0.15 m/s The length of…

Q: 13. A mixture of water and steam is flowing up a 25 mm diameter channel at a rate of 4500 kg/s m²…

A: Answer: Two-phase or multi-phase flow appears to be an unusual issue employed only in scientific…

Q: A three stage pump delivers 1.89 m3/s against a head of 200 m with a speed of 2000 rpm. Find the…

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Q: water is the working fluid in au Rankince cycle which is used to model nuclear power steam e u Lers…

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Q: Replace the loading by an equivalent resultant force and couple moment acting at point O. Suppose…

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Q: Find the cross sectional dimensions of the smallest square beam that can be loaded as shown in the…

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Q: 11. A rear flange mounted cylinder extends 14 in. under a load of 10,000 Ibf. What size cylinder rod…

A: Given       Mass, m = 10000 lbf                     = 4535 kg Extension, h = 14 in…

Q: The wall of a cold storage room is composed of brick, concrete and cork insulation with thickness of…

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Q: 5-9. By applying a force F, a saline solution is ejected from the 15-mm-diameter syringe through a…

A: Given dataForce F is appliedDiameter of syringe = 15 mm = 0.015 mDiameter of needle = 0.6 mm  =…

Q: A three-bladed wind turbine has a small, unbalanced mass m-0.2 kg, located at an eccentricty e-0.2m…

A: Any rotating mass if off center from the point of rotation is called as eccentric. Usually motors…

Q: 3. Determine the moment of inertia Ix, Iyy and Iy of the shaded area shown in Figure 3 with respect…

A: Divide above figure into basic elements as shown

Q: With respect to the following construction trades, list two occupational injuries commonly observed:…

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Q: Mercury has a volumetric flow rate of 30m³/s. What volume of mercury has flowed after 1 minute?

A: Write the formula for the volume flow rate of mercury. Q=Vt Here, Q is the volume flow rate of…

Q: determine the tool life

A: Given;  Find tool life for maximum production rate ? Where,  Tool changing time, T= 2.7 min…

Q: ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ᴘᴏᴡᴇʀ ʀᴀᴛɪᴏ ᴏꜰ ᴀ ᴘᴜᴍᴘ ᴛᴏ ɪᴛꜱ 1/5 ꜱᴄᴀʟᴇ ᴍᴏᴅᴇʟ ɪꜰ ᴛʜᴇ ʀᴀᴛɪᴏ ᴏꜰ ᴛʜᴇ ʜᴇᴀᴅꜱ ɪꜱ 4 ᴛᴏ 1?

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Q: Steam is supplied to a two-stage turbine at 140 bar and 400°C. It expands isentropic ally until it…

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Q: A flywheel 6 ft. in diameter accelerates from rest at the constant rate of 4 rpm per sec. Compute…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.