A- Air at 1 atm, 15°C, and 60/percent relative humidity is first heated to 20°C in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 25°C and 65 percent relative humidity. Determine (1) the amount of steam added to the air, and (2) the amount of heat transfer to the air in the heating section.

Q: 14-116E The relative humidity of air at 80°F and 14.7 psia is increased from 25 to 75 percent during…

A: To Find:The percent error involved in assuming the density of air to have remained…

Q: An air-conditioning system operates at a total pressure of 1 atm and section and a humidifier that…

A: rite the

Q: Atmospheric air at a pressure of 1 atm and dry-bulb temperature of 28°C has a dew-point temperature…

A: Inlet air condition, P=1 atm, T1=28oC db, TDPT,1=20oCOutlet air condition, RH2=100%

Q: Air with a wet bulb temperature of 15oC and a humidity of 0.005 kg/kg flowing at 2 kg/s is mixed…

A:

Q: Air enters an evaporative cooler at 1 atm, 36 °C and 20 % relative humidity at a rate of 10 m³/min…

A:

Q: The dry-and wet-bulb temperatures of atmospheric air at 95 kPa are 25 and 17°C, respectively.…

A: The dry bulb temperature is .The wet bulb temperature is The pressure of air is

Q: Air with a relative humidity of 95% and temperature of 35°C is pumped into a chamber filled with a…

A: Given : ϕ=0.6 T1=35 C , RH=95% T1=40 C , RH=5% t = 15 mins = 900 secs To find :

Q: Saturated air at 13 °C and 1 atm enters the heating section of an air-conditioning system at a rate…

A: Given: Inlet temperature (T1)=13°CMass flow rate (m)=0.5kg/sOutlet temperature (T2)=30°C

Q: Consider an adiabatic saturation process where moist air is entering at 100 kPa and 303 K and…

A: The calculation is given as under:

Q: Moist air initially at 120 °C, 3 bar, and 60% relative humidity is contained in a 4-m³ closed, rigid…

A: Given: Initial temperature of moist air (T1)=120°C or (120+273=393K)Initial pressure of moist air…

Q: In an attempt to conserve water and to be awarded LEED (Leadership in Energy and Environmental…

A: To findthe rate of intake of air at ambient conditions in cubic feet per minute.The hours of…

Q: Two airstreams are mixed steadily and adiabatically. The first stream enters at 35OC and 30 percent…

A: We have given   Two airstreams are mixed steadily and adiabatically. The first stream enters at…

Q: An air-conditioning system is to take in outdoor air at 5º°C and 20 percent relative humidity at a…

A: given: initial temperature of air, T1=5o Crelative humidity of air,  ϕ1=20%outdoor air heated to…

Q: ir enters a cooling section at 97 kPa, 35°C, and 30 percent relative humidity m'/min, where it is…

A:

Q: explain why the basement of a house often has high relative humidity in the summer? A   Hot air…

A: why the basement of a house often has high relative humidity in the summer?Hot air containing…

Q: I need this question in 1 hour, I will give you a good review......... A saturated mixture of 2 kg…

A: Given data:Initial mass of liquid water: mw = 2 kgInitial mass of steam: ms = 0.7 kgInitial…

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.