Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
An electric air heater consists of a horizontal array of thin metal strips that are each 10 mm long in the direction of an airstream that is in parallel flow over the top of the strips. Each strip is 0.2 m wide, and 25 strips are arranged side by side, forming a continuous and smooth surface over which the air flows at 2 m/s. During operation, each strip is maintained at 500°C and the air is at 25°C.
(a) What is the rate of convection heat transfer from the first strip the fifth strip the tenth strip, all the strips?
(b) For air velocities of 2, 5, and 10 m/s, determine the convection heat rates for all the locations of part (a). Represent your results in tabular or bar graph form.
(c) Repeat part (b), but under conditions for which the flow is fully turbulent over the entire array of strips.
suppose that the us military is considering a new lifetime regulation on their helicopter rotor blades. instead of
a quantity of steam the original pressure and volume being 140 knm2 and 150 litres respectively is compressed to a
Find the adiabatic flame temperature for methane burned in: (a) 110% theoretical air and (b) 110% theoretical oxygen enriched air (30% O2, 70% N2 by volume) Please explain in DETAIL
The exit temperature, in °R
Consider a pressure vessel constructed from Al 6063 age hardened aluminium alloy with a 3mm wall thickness, 80mm inner diameter, and 359mm length. Assume thin walled. Find the principal stresses and directions for a pressure of 3.0MPa. Calculate the ..
The Prony brake shown in Figure 2 is commonly used in torque measurement. The rope is wound round the brake drum mounted onto the shaft. One end of the rope carries a dead load of weight W and the other end is attached to a spring balance
an isolated system consists of a closed copper vessel of mass 0.1 kg containing 1 kg of liquid water each initially at
an engine operates on an air-standard otto cycle. the pressure and temperature at the beginning of the compression
the rod is made of a-36 steel and has a diameter of 0.25 . if the rod is 4 long when the springs are compressed 0.5 .
Determine the specified data for water at the states indicated and locate each state on a P-v and T-v diagram.
(a) The mass flow rates of the steam and cooling water, each in lbm/hr. (b) The net power developed by the gas turbine and the vapor power cycles, in Btu/hr.
The rolling resistance of a 1200kg car depends on its weigh as F = 0.006m x gravity. How far will the car roll if at 90km/h the gear is put in neutral on a level road without wind resistance?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd