Return air at 25°C and fresh outdoor air at 35°C is mixed in an adiabatic mixing chamber. If 22% of the mixed air is from outdoor air, what is the temperature of the mixed air in °C? (A) 28.7 °C (B) 22.7 °C 27.2 °C

Return air at 25°C and fresh outdoor air at 35°C is mixed in an adiabatic mixing chamber. If 22% of the mixed air is from outdoor air, what is the temperature of the mixed air in °C? (A) 28.7 °C (B) 22.7 °C 27.2 °C

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: 3 Air at 101.325Pa barometric pressure, dry bulb temperature of 20°C and wet bulb temperature of…

Q: Certain air that is 80 ° F and an atmosphere has a dew point temperature of 40 ° F. Calculate the…

A: Given- At point (1) Pressure=1 Atm DBT=80 degree fehrenheight…

Q: Outside air at 95°F DB and 0.0168 Ibs/lb Humidity Ratio is mixed with air returning from a room at…

Q: In a cooling tower, the required make up water is 18.5 kg/s. Atmospheric air at 100 kPa, 25°C db,…

Q: Moist air initially at 101 kPa, 30°C db, 30% relative humidity undergoes a sensible cooling process…

Q: Air flow at 5 kg/min, 25C and 75% relative humidity is cooled to 20C at 1 atmospheric pressure, the…

Q: In an air-water vapor mixture at 30°C, the partial pressure of the water vapor is 1.7 kPa and the…

Q: If superheated humid air is cooled at 1 atm, the system follows a horizontal path to the left on the…

A: All the air conditioning processes can be easily drawn on the psychrometric chart. On the x-axis of…

Q: Moist air enters a duct at 10 °C, 80 % RH, and a volumetric flow rate of 150 m3/min. The mixture is…

A: Given: Let us consider the given data, T1=10°Cϕ1=80%V1=150 m3minT2=30°C Let's determine the…

Q: Moist air initially at standard atmospheric pressure, 15°C db, 70% relative humidity undergoes a…

Q: How much of a cold air stream at 18°C, 80% relative humidity should be mixed with 5.8 kg da/s of a…

A: Write the enthalpy at 18 oC and 80% Relative humidity. h1=44.22 kJ/kg Write the enthalpy at 35 oC…

Q: amount of moisture removed per kg of m/kg da

Q: of fresh air at 30 °C (DBT) dry bulb temperature and 50% RH is to be mixed with 800 m' /min of…

A: Given:- fresh air=300 m'/min DBT=30 degree Celsius 50%RH 800 m'/min 220C -dry bulb temperature…

Q: What is the error in per cent resulting from chart design when the heat required to heat 65°F air…

Q: Moist air initially at standard atmospheric pressure, 15°C db, 70% relative humidity undergoes a…

A: Note: As per the policy, we can solve the first question from multiple questions. Please resubmit…

Q: Can you explain how did he come up with the formula and explain the formula

A: Specific heat is the amount of heat required to raise the temperature of the substance by a unit…

Q: Outdoor air initially at 30⁰Cdb and 25⁰Cwb, is mixed with room air at 22⁰C and 50%RH. The mixture is…

A: Given data as per question td1=30 0c tw1=25 0ctd2=22 0cϕ2=50%final mixture consist of 75% of room…

Q: The outside air (T=5 degrees celsius, P=1 bar, Volume flow=50 m3/min, relative humidity is 70%) is…

A: Given: Initial temperature of air: →Ti=5°C Relative humidity→RH=70% Volume flow rate→Q=50…

Q: Air flowing at the rate of 80m³ /min at 35°C dry bulb temperature and 50% relative humidity is mixed…

Q: air flowing at the rate of 80m^3/min at 35 degrees celsius dry bulb temperature and 50% relative…

Q: Air enters a natural draught cooling tower at 1.013 bar and 13 °C and relative humidity 50%. Water…

A: Given:

Q: ۱/۱ : 0 о ) العنوان Prave the temp vay For the adiabatic mixing of mixtures of gases, prove the…

A: Adiabatic mixing is a process in which two or more gases are mixed together without any heat…

Q: The molar analysis of a gas mixture at 25°C, 90 kPa is 40% N₂, 40% CO2, and 20% O2. Step 1 ✓ Your…

Q: A homogenous mixture of 21 kg of dry air and 0.3 kg of water vapour is contained in a tank at 24°C…

Q: coefficient? A hot air stream with a temperature of 45 C dry and 32 C humid mixed adiabatically in…

Q: During an air- conditioning process, 1000 ft/ min of conditioned air at 70°F and 35% relative…

Q: In an air-conditioning system situated at UWI Mechanical Laboratory building, 300 m³/min of fresh…

Q: SPECIFIC HEAT OF THE MIXTURE The specific heat of the mixture is; Cpm = Cpa + WCpv Where: W =…

A: For solution refer below images,Note- here example asked based on above formula. So, here i provide…

Q: From air at 35°C and relative humidity 65%, 5 gram of water vapour per kg of air is removed and…

Q: ! Required information Problem 14.014 - Specific and Relative Humidity DEPENDENT MULTI-PART PROBLEM…

A: To find: The relative humidity. Given: The mass of the dry air is ma=15 kg. The mass of the water…

Q: )(True or False) The length of the saturated mixture line underneath the dome decreases with…

A: The length of the saturated mixture line underneath the dome decreases with increasing pressure.…

Q: 1%^. III. о العنوان ١٢:٠٦ е Prave the temp For the adiabatic mixing of mixtures of gases, prove the…

A: In the context of thermodynamics, adiabatic mixing refers to the process where two or more gases are…

Q: In a mixture of dry air and water vapor at a total pressure of 750 mm of Hg the partial pressure of…

A: Given:Total pressure, P=750 mm of HgPartial pressure, Pv=20 mm of Hg

Question

Return air at 25°C and fresh outdoor air at 35°C is mixed in an adiabatic mixing chamber.
If 22% of the mixed air is from outdoor air, what is the temperature of the mixed air in
°C?
(A) 28.7 °C
(B) 22.7 °C
27.2 °C

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

2,000 m3 /h of return air at 25 °C and 40% relative humidity are mixed with 500 m3 /hof outside air at 3 7 °C and 60% relative humidity before entering a cooling coil. Themixed air is then cooled sensibly to 1 7 °C.Sketch the process on the psychrometric chart and find the followings:a- Humidity ratio of mixed air before entering the cooling coil.b- Enthalpy of mixed air before entering the cooling coil.c- Relative humidity and d~w point temperature of the supply air.d- Coil cooling capacity.
Moist air initially at T1 = 140°C, p1 = 4 bar, and φ1 = 62% is contained in a 2.0-m3 closed, rigid tank. The tank contents are cooled to T2 = 35°C. a) Determine the temperature at which condensation begins, in °C. (i got 121.2 C which is correct) b) Determine the heat transfer, in kJ.
Q3/Air washer was used to cool air entering at 35°C dry bulb and 50% relative humidity. The air leaves the air washer at 20°C dry bulb temperature. (A)Determine the moisture added per kg of dry air.(B)What is the efficiency of the air washer.(C)calculate *. the heat removed by the washer
B-Recirculated air with volume rate of 800 m³/min, dry bulb temperature 22 °C, dew point temperature 10 °C is to be mixed with fresh air of 300 m³/min, dry bulb temperature 30 °C, R.H 50%. Determine the enthalpy, specific volume, humidity ratio, and dew point temperature of mixture.
Cooling water leaves at 35ºC and at 100 kg/s from the condenser of a thermal power station and enters a cooling tower. In this tower, the water is cooled to 22ºC with air entering at 1 atm, 20ºC and 60% relative humidity, leaving saturated at 30ºC. Determine: a) The volumetric flow rate of air entering the tower. b) The mass flow rate of the make-up water.
For each of the given initial state parameters, select the appropriate enthalpy value: Note: Tdb - dry bulb temperature, F h -enthalpy, Btu/lbair RH - relative humidity, %
By hand
6kg/s of return air at 20 °C and 40% relative humidity are mixed with 2 kg/s of outside air at 40 °C and 60% relative humidity before entering a cooling coil. The mixed air is then cooled sensibly to 14 °C. SHR30.6. The mixing enthalpy hm in kJ/kg is