What is the heat transfer coefficient for ambient air at 43 C
Q: A kick occurs because the pressure inside the wellbore annulus is higher than formation pressure. a.…
A: The kick formation depend on the pressure gradient in wellbore annulus and formation pressure.
Q: An oil cooler consists of a system of nested identically centered pipes. The inner tube of this…
A: Given: Inner diameter of the inner tube: →d1=1.4 Cm=0.014 m Thickness of the tube: →t=0.2 Cm=0.002 m…
Q: A Carnot engine operating between 70°C and 2000°C is modified solely by raising the high temperature…
A:
Q: 50 mm 100 mm 50 mm 150 mm 50 mm Three boards, each 50 mm thick, are nailed together to form a beam…
A:
Q: A certain type of cans are formed on a machine by spinning them from cardboard stock and attaching a…
A: Given \ Sample size N=50 Total number of samples is M=30 Table1: Number of nonconforming cans in a…
Q: 1 0.2 3. Explain in detail the ten strategies for automation and production systems.
A: Ten strategies 1) Specialization of operation The first strategy involves the use of special-purpose…
Q: The original design of a hydraulic turbine has data as follows: flow rate of 1 cumex, effective head…
A:
Q: -28 mm- -18.6 mm A mm 12 mm 16 mm Determine the following: a. Shearing Stress in the head bolt. b.…
A:
Q: : Gate AB in Fig. 3 is 6 m wide into the paper. It is hinged at A, and restrained by a stop at B.…
A:
Q: A composite square member of varying sizes is subjected to axial forces along its centerline, as…
A: Given:Dimension of section A-A=50 mm X 50 mmDimension of section B-B= 75 mm X 75 mmDimension of…
Q: What is the location of FR, i.e., the distance d? A M 3 m 3 m F. R B
A:
Q: What is the rate of flow of water passing through a pipe with a diameter of 20mm and a speed of…
A: Given data:- diameter of pipe =20 mm speed of water =0.5 m/sec To find:-the rate of flow of water…
Q: A constant moment M in the clockwise direction is applied to a 20-lb thin disk in contact with an…
A:
Q: A pipe in a spacecraft, made of AISI 310 stainless steel, is near the rocket engine, causing it to…
A:
Q: Q2) In an engine working on the ideal otto cycle, the the pressure and temperature at the beginning…
A: To find: The compression ratio of the otto cycle, the pressure and temperature at the end of…
Q: A horizontal wrought iron pipe of 125 mm ID and somewhat corroded is transporting 0.234 m° of air…
A: Solution: Given Data: D=125 mmQ=0.234 m3/sPA=483 kPaPB=448 kPaT=20oCε=0.00025 mρ=8.7 kg/m3 To…
Q: 0.3 m B @AB 12 rad/s -IIIA 0.6 m 30° II IV D
A:
Q: The total head on a 60° triangular weir is measured to be 43 cm. If the measured actual discharge in…
A:
Q: An insulation system is to be selected for a furnace wall at 1000-C using first a layer of mineral…
A: Given:Furnace wall temperature, Ts=1000oCThermal conductivity of wool block, kwool=130 mW/moC=0.130…
Q: 2. Compress 4 kg/s of CO2gas polytropically (pV = C) from pi = 103.4 kPa, ti = 60°C to tz = 227°C.…
A: To find: The value of p2, W, Q and ∆S Given: The mass flow rate of the carbon-di-oxide gas, m = 4…
Q: A long pipe carrying hot water loses heat to the ambient air. The heat loss was measured to be 480…
A: To find: The convection coefficient of the air. Given: The heat flux is q˙=480 W/m2. The temperature…
Q: The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by…
A:
Q: List the variables in the first column Ap, = f(D,p,μ,V) and include the dimensions In each column,…
A: Itis asked to find the variable and corresponding dimentions ∆P = fD,ρ,μ,V Also systematically…
Q: 3. An element in plane stress on the fuselage of an airplane (figure part a) is subjected to…
A:
Q: A converging nozzle having an exit diameter of 30 mm is connected to the large tank (Figure 1). The…
A:
Q: A moving company rigs a pulley system to lift a piano to a fourth floor balcony 44 feet from the…
A: Solution: Given Data: H=44 ftn=7 W=1200 lbsη=88% To Find: (a) The actual or true mechanical…
Q: 3. Locate the centroid of the line as shown in figure below. 2" 3" 2" y 5" 4" |
A:
Q: How is the hydrodynamic entry length defined for flow in a pipe? Is the entry length longer in…
A: Write the hydrodynamic entry length for the flow in a pipe.
Q: A large regenerative-type steam turbine is to operate 10 Mpa, 550C and 10kpa terminal states. Stage…
A:
Q: he tension in the walls of a horizontal 0.1 m diameter pipe under a static pressure of 10000 cm of…
A: Given Diameter, d = 0.1 m Pressure head, h = 10000 cm = 100 m Depth, H = 10 m Find Tension, T
Q: A vertical, frictionless piston-and-cylinder arrangement contains 2 lb of steam at 400 psia, 500°F.…
A:
Q: The system shown in the figure is composed of bar AB which is pin-supported at A and attached to bar…
A:
Q: Equivalent Circulation Density (ECD) is the effective density exerted by a circulating fluid against…
A:
Q: Q1. Check the dimensional homogeneity of the following common equations in the field of…
A:
Q: coefficient? A hot air stream with a temperature of 45 C dry and 32 C humid mixed adiabatically in…
A:
Q: The bar shown below has a constant width of 41 mm and a thickness of 16 mm. The maximum average…
A:
Q: Tec Exa Consider the following configuration of fins that are attached to a surface with a thermal…
A: Given: To find: The heat flow rate per m2 of the surface The fin effectiveness
Q: A horizontal cylindrical rod with a length of 2 m and a diameter of 0.2 m is used for the top of a…
A:
Q: A machine tool with mass m = 1000 kg and mass moment of inertia J0 = 300 kg/m² rests on elastic…
A: Solution: Given Data: m=1000 kgJo=300 kg-m2k1=4000 N/mmk2=2000 N/mmL1=0.4 mL2=0.7 m To Find: (a)…
Q: Daniel also gets an internship, but it's for a 6 story hospital. To ensure adequate water supply,…
A: Given: The pressure supplied by the pump is 8.5 atm (absolute). Height of the storage tank is 65 m…
Q: turbine control valves are located at: a) the inlet of the HP and IP turbines b) the reheater…
A: Control Valve: A control valve is a valve used to control fluid flow by varying the size of the flow…
Q: turbine control (governor) valves are located at:
A: To find: The governor valve location. Concept used: Governor valve: The turbine control system's…
Q: You are designing a gas turbine engine that must provide 1.91 kW of output power. The efficiency of…
A: “Since you have posted a multiple question, we will provide the solution only to the first question…
Q: 21° W A 190 kN horizontal force Pis applied to a 220 kN box resting on an 21° incline. The line of…
A:
Q: What is the module of a spur gear with 30 teeth and pitch diameter if 5 inches? 5.236 mm 4.233 mm…
A: The given values are - Teeth T =30 Pitch diameter D = 5 inch(127 mm)
Q: Air enters the compressor of an ideal air standard Brayton cycle at 195 kPa, 290 K, with a…
A:
Q: The converging-diverging nozzle of the engine of a new supersonic unmanned aerial vehicle (UAV) has…
A:
Q: Problem4: For the beam and loading shown, determine the deflections y and the slopes 0 at B and at C…
A:
Q: The value that tells you the planned value of work that has actually been completed is the AC PV EV…
A: AC (Actual Cost) The total cost incurred for the work till current date PV (Planned Value) The…
Q: Roughly how many tons of cooling does it take to cool a space where the following equipment is…
A: The equipment used and power consumed is given as - 3 Refrigerators of 3000 W each, Total =9000 W10…
What is the heat transfer coefficient for ambient air at 43 C
Step by step
Solved in 2 steps
- 8.15 A mercury bath at is to be heated by immersing cylindrical electric heating rods, each 20 cm tall and 2 cm in diameter. Calculate the maximum electric power rating of a typical rod if its maximum surface temperature is .A 2.5-cm-OD, 2-cm-ID copper pipe carries liquid oxygen to the storage site of a space shuttle at -183Cand0.04m3/min. The ambient air is at 21C and has a dew point of 10C. How much insulation with a thermal conductivity of 0.02 W/m K is needed to prevent condensation on the exterior of the insulation if hc+h=17W/m2 K on the outside?1.79 Consider the cooling of (a) a personal computer with a separate CPU and (b) a laptop computer. The reliable functioning of these machines depends on their effective cooling. Identify and briefly explain all modes of heat transfer involved in the cooling process.
- Water at a temperature of 77C is to be evaporated slowly in a vessel. The water is in a low-pressure container surrounded by steam as shown in the sketch below. The steam is condensing at 107C. The overall heat transfer coefficient between the water and the steam is 1100W/m2K. Calculate the surface area of the container that is required to evaporate water at a rate of 0.01 kg/s. Problem 1.16The heat transfer coefficient for a gas flowing over a thin float plate 3-m long and 0.3-m wide varies with distance from the leading edge according to hc(x)=10x1/4Wm2K If the plate temperature is 170C and the gas temperature is 30C, calculate (a) the average heat transfer coefficient, (b) the rate of heat transfer between the plate and the gas, and (c) the local heat flux 2 m from the leading edge. Problem 1.18Using Table 1.4 as a guide, prepare a similar table showing the orders of magnitude of the thermal resistances of a unit area for convection between a surface and various fluids.
- A horizontal, 3-mm-thick flat-copper plate, 1-m long and 0.5-m wide, is exposed in air at 27C to radiation from the sun. If the total rate of solar radiation absorbed is 300 W and the combined radiation and convection heat transfer coefficients on the upper and lower surfaces are 20 and 15W/m2K, respectively, determine the equilibrium temperature of the plate.Determine the power requirement of a soldering iron in which the tip is maintained at 400C. The tip is a cylinder 3 mm in diameter and 10 mm long. The surrounding air temperature is 20C, and the average convection heat transfer coefficient over the tip is 20W/m2K. The tip is highly polished initially, giving it a very low emittance.If we neglect radiative heat transfer, what is the appropriate heat transfer coefficient value for stagnant ambient air?