Heat transfer to the air in the heating section

Assignment Help Mechanical Engineering
Reference no: EM13702408

Air at 14.7 psia, 50oF, and 60% relative humidity is first heated to 72  o F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75oF and 55% relative humidity.

Determine

a) The amount of steam added to the air in lbmH2O/lbm dry air

b) The amount of heat transfer to the air in the heating section in Btu/lbm dry air.

Reference no: EM13702408

Questions Cloud

The poly tropic coefficient and associated boundary work : A closed system contains 0.5 kg of nitrogen, initially at 150 KPa with a volume of 0.3 m^3. The system undergoes a poly tropic process resulting in the final state of 240 KPa and 100 C. Determine a) the poly tropic coefficient and b) the associated b..
Water cools at a rate : Water cools at a rate of 0.1 deg C per second as it flows in a pipe at 1 m / s. At any fixed location, the temperature is independent of time. If the pipe is 10 m long, what must the temperature be at the upstream end to keep the water temperature at..
The women dives first and the man dives first : A 90-kg man and 60-kg woman stand side by side at the same end of of 150-kg boat ready to dive, each with a 5-m/s velocity of the boat after they have both dived, if (a) the women dives first, (b) the man dives first.
Small angular oscillations of bar about the vertical axis : A uniform bar of length l and weight w is suspended symmetrically by two strings, set up the differential equation of motion for small angular oscillations of the bar about the vertical axis, and determine its period.
Heat transfer to the air in the heating section : Air at 14.7 psia, 50oF, and 60% relative humidity is first heated to 72  o F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75oF and 55% relative humidity.
Determine the velocity of the bird : A bird flying at a constant speed at an altitude 100 m is being tracked by a person located directly below the line of flight. If this angle is decreasing at 0.02 rad/s when the angle between the horizon line and the line of site is 45 degrees.
Small angular oscillations of bar about the vertical axis : A uniform bar of length l and weight w is suspended symmetrically by two strings, set up the differential equation of motion for small angular oscillations of the bar about the vertical axis, and determine its period.
Calculate the force required to push liquid oil : Calculate the force required to push liquid oil, with the density of 890 kg/m^3, through a 1 mm diameter hole. Account for viscous forces and please show all work.
Suspended symmetrically by two strings : A uniform bar of length l and weight w is suspended symmetrically by two strings, set up the differential equation of motion for small angular oscillations of the bar about the vertical axis, and determine its period.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  If the friction mep is 122 bar in both cases determine the

a certain generating power plant requires 1 mw output. two types of diesel- engine installations are available. one

  Determine the average resistance r to motion over the

a two-engine jet transport has a loaded weight of 90000 lb and a forward thrust of 9800 lb per engine during takeoff.

  The thermal conductivity varies linearly with temperature

heat is flowing through an annular wall of inside radius r0 and outside radius r1. the thermal conductivity varies

  This nuclide is produced by the endoergic reaction 16onp16n

an important radionuclide produced in water-cooled nuclear reactors is 16n which has a half-life of 7.13 s and emits

  A hollow steel shaft 6 ft long has an outer diameter of 25

a hollow steel shaft 6 ft long has an outer diameter of 2.5 in. and an inner diameter of 1.5 in. the shaft is

  Determine each of the following a pressure at the end of

a carnot power cycle operates on 1.5 kg of air between the limits of 400 k and 250 k completing one cycle each second.

  If the volumetric flow rate of the air stream is 80 m3min

atmospheric air at 95 kpa 30 degrees celcius and 75 humidity is to be conditioned at constant pressure so that it

  Find the heat transfer and work per unit mass of air in

consider an air-standard otto cycle and a modified cycle in which the isentropic compression and expansion processes

  The boiling eventually exhibits behavior similar to

water at atmospheric pressure boils on the surface of alarge horizontal copper tube. the heat flux is 90 ofthe critical

  If a water tank is to be installed on the roof top of the

if a water tank is to be installed on the roof top of the utpa administration building to supply water for the campus.

  The roof will be a poured concrete slab 4in thick the

the roof of an industrial building is to be supported by wide-flange beams spaced 4ft on centers across a 20ft span.

  The car is traveling at a constant speed of 30 ms the

the car is traveling at a constant speed of 30 ms. the driver then applies the brakes at a and thereby reduces the cars

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd