P=19 Moist air goes into air-conditioning unit at a degree-30 C and 70% relative humidity, and it is cooled to 20-degree C and 20% relative humidity at a constant pressure of 1.01325 bar. The mass flow rate of dry air is mda=63 kg/s The unit applies refrigerant R-134a as the cooling fluid that enters inside the tubes of the cooling coil at 3.6 bar with a quality of 0.2 and leaves as a saturated vapor at the same pressure of 3.6 bar. Use the psychometric chart to determine: a) Mass flow rate of condensed water in kg/s b) The heat transfer rate from the air to the cooling coil in kW (Use the psychometric chart) c) The mass flow rate of R-134a that is needed in kg/s

P=19 Moist air goes into air-conditioning unit at a degree-30 C and 70% relative humidity, and it is cooled to 20-degree C and 20% relative humidity at a constant pressure of 1.01325 bar. The mass flow rate of dry air is mda=63 kg/s The unit applies refrigerant R-134a as the cooling fluid that enters inside the tubes of the cooling coil at 3.6 bar with a quality of 0.2 and leaves as a saturated vapor at the same pressure of 3.6 bar. Use the psychometric chart to determine: a) Mass flow rate of condensed water in kg/s b) The heat transfer rate from the air to the cooling coil in kW (Use the psychometric chart) c) The mass flow rate of R-134a that is needed in kg/s

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: Moist air enters a duct at 10oC, 80% relative humidity, and a volumetric flow rate of 81m3/min. The…

A: Given:Moist air inlet condition, Tdb,1=10oC, ϕ1=80%Air outlet temperature, Tdb,2=34oCFind:a The rate…

Q: The following data refer to summer air conditioning of a building: Outside design conditions 43 °C…

Q: within an air-handling system, a stream of air at T=30°C and 91=40% relative humidity is being mixed…

Q: 1- Saturated air leaving the cooling section of an A. C system at 14 C° at a ráte of 50 m'/min is…

A: Given data as per question T1=140CV1=50 m3minT2=320CV2=20 m3minϕ2=60% Calculations Considering…

Q: air flowing at 2 kg / s has a dry bulb temperature of 55˚C and a wet bulb temperature of 25˚C, mix…

A: m1˙=2kgsecDBT1=55°C ,WBT1=25°Cm˙2=3 kgsec DBT2=25°Cφ=50%Consevation of mass m˙1+m˙2=m˙3…

Q: Air at 30°c dry bulb temperature and 60% relative humidity is passed through a cooling coil at the…

A: Given data: Inlet DBT of air =30 °C Exit DBT of air = 14 °C…

Q: Prove that the enthalpy of the humid air remains constant along a wet bulb temperature line on the…

A: To be explained:- the enthalpy of the humid air remains constant along a wet bulb temperature line

Q: Q.3 Saturated ambient air with a db-temperature of 5°C and a mass flow rate of 0.9 kg/s is divided…

A: The ratio of the current absolute humidity to the highest attainable absolute humidity is known as…

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

Q: Set 2 Inlet (A) Outlet (B) [kg/kg dry air] vmkg dry air] m. [kg dry air/s]

Q: Humid air at 40°C and 20% relative humidity enters an adiabatic spray chamber at a rate of 100…

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

Question

P=19 Moist air goes into air-conditioning unit at a
degree-30 C and 70% relative humidity, and it is cooled
to 20-degree C and 20% relative humidity at a constant
pressure of 1.01325 bar. The mass flow rate of dry air is
mda=63 kg/s The unit applies refrigerant R-134a as the
cooling fluid that enters inside the tubes of the cooling
coil at 3.6 bar with a quality of 0.2 and leaves as a
saturated vapor at the same pressure of 3.6 bar. Use
the psychometric chart to determine:
a)
Mass flow rate of condensed water in kg/s
b)
The heat transfer rate from the air to the cooling
coil in kW (Use the psychometric chart)
c)
The mass flow rate of R-134a that is needed in
kg/s

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2 (1)

Step 3 (2)

Step 4 (3)

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 8 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

QUESTION 1 Water at 60°C leaving a condenser at the rate of 22.5kg/s is sprayed into a natural-draught cooling tower and leaves it at 27°C. Air enters the tower at 1.013bar, 13°C and 50% relative humidity and leaves it at 38°C, saturated. Take Cp for the superheated vapour as 1.86 kJ/kgK. Calculate: 1.1. the air flow rate required in m/s; 1.2. the make-up water required in kg/s.
please solve in 4o mins i will give you positive feedback
Thermo Fluid help needed air conditioner
A space to be conditioned has a sensible heat load of 80 kw and a latent heat load of 20 kw and is to be maintained at 20°C and 50% relative humidity. Outside air is at 35°C and 60% RH. The conditioned air will enter the space at 15°C. If 40% of the supply air is fresh and the rest is recirculated, the refrigeration capacity of the system is nearest to what value? 430 kw 455 kw 428 kw Ⓒ333 kw
3. Air enters a window air conditioner at 1 atm, 30 C, and 80 percent relative humidity at a rate of 10 m/min, and it leaves as saturated air at 14 C. Part of the moisture in the air that condenses during the process is also removed at 14 C. Determine the rates of heat and moisture removal from the air. ,= 80% - 100% 14°C Cooling coils tooo0000 Air Cowdensate, Codensate
Q.2 An evaporative cooler is used to cool a space which has a sensible heat load of 15 kW and a latent heat load of 4.8 kW. The dry air mass flow rate of the supply air is 1.4 kg/s. The air leaves the cooler with a db-temperature of 18°C and a relative humidity of 100%. The outdoor air db-temperature is 35°C. The pressure is constant at 101.3 kPa. Determine (1) the db-temperature and relative humidity of the (ii) the outdoor relative humidity, and (iii) the mass flow rate of water. space,
Use the concept of evaporative cooling to explain how air’s relative humidity is measured using a sling psychrometer
Air Conditioning Thermo Fluid
Pls. Answer..thank you! An air-conditioning system operates at a total pressure of 1 atm and consists of a heating section and an evaporative cooler. Air enters the heating section at 15OC and 55 percent relative humidity at a rate of 30 m3 /min, and it leaves the evaporative cooler at 25OC and 45 percent relatively humidity. Determine the TOR.
A space is to be maintained at 22C and 50% relative humidity. The sensible heat load is 100 kW, and the latent heat load is 15 kW. Outside air is at 38C DB and 25C WB temp. Air is supplied to the space at 13C. If all-outside air system (no recirculation) is to be implemented, determine: (a) the cooling capacity in tons; (b) capacity of supply air fan in cmh; and (c) the coil bypass factor.
Moist air enters a duct at 10oC, 80% relative humidity, and a volumetric flow rate of 81m3/min. The air is heated as it flows through the duct and exists at 34oC. No moisture is added or removed. Draw the cycle on the attached chart and determine: a) The rate of heat transfer in KJ/s; b) The relative humidity at the exit.
Air enters a window air conditioner at 1 atm, 32oC, and 65 percent relative humidity ata rate of 80 kg/min, and leaves at 20oC with 50 percent relative humidity. Determinethe cooling capacity of the A.C. in tons and the moisture removal from the air in kg/s.