show complete solution 1. Using the fundamental equations of moist air processes, calculate the enthalpy of moist air atdry bulb temperature of 320c and 60% relative humidity.Answer:Lenthalpy kJ/kg d.a.2. Using the fundamental equations of moist air processes, calculate the humidity ratio of moistair at dry bulb temperature of 720F and 650F wet bulb temperature.Answer:humidity ratio Ib/lb d.a.

We are suppose to solve only one question. Please post other question as a separate question.

Answered: 1. Using the fundamental equations of…

1. Using the fundamental equations of moist air processes, calculate the enthalpy of moist air at dry bulb temperature of 320C and 60% relative humidity. Answer: Lenthalpy kJ/kg d.a.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 1RQ: The standard design conditions for air-conditioning systems established by the Air-Conditioning,...

See similar textbooks

Related questions

Q: Air at a dry bulb temperature of 20oC and relative humidity of 80% is to be heated and humidified to…

Q: Air at 5 °C and 80% relative humidity that flows at a rate of 2 kg/ s is mixed with 4 kg/ s of air…

A: Write the formula for relative humidity to calculate the pressure of air at 5oC. ϕ1=Pv1Pvs1 Here, ϕ1…

Q: Air flowing at 2 kg / s has a dry ball temperature of 55 C and a wet bulb temperature of 30 "C,…

Q: Moist air at 32 degrees Cdb and relative humidity of 60% enter a refrigeration system with a flow…

A: Given Data State 1: 32°C DBT, 60% RH State 2: 15°C, saturated air ma=90 kg/min

Q: Calculate the humidity ratio, enthalpy, and spe- cific volume for saturated air at 30°F (-1°C) and…

A: Air conditioning is the process in which air is prepared by using controlling ventilation,…

Q: Air flows at 2 kg / s with a dry bulb temperature of 60 ° C and a wet bulb temperature of 30 ° C,…

A: Data given- m1 = 2 kg/s D.B.T = 60°C W.B.T = 30°C m2 = 5 kg/s D.B.T = 25°C And relative…

Q: Using a psychometric diagram, describe the heating and humidification process from the following…

Q: Moist air (2.5 m3/s) at 35 °C and 70% relative humidity, passing through an evaporator of a…

A: The specific humidity of air at 35 degrees Celsius DBT and 70% relative humidity is Also,

Q: In an air-conditioning unit 3.5 m3/s air at 27°C dry-bulb temperature, 21°C wet-bulb temperature,…

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

Q: how air’s relative humidity is measured using a sling psychrometer

A: To Find :- how air’s relative humidity is measured using a sling psychrometer

Q: | If the relative humidity at a sea-level site is 50% for a dry-bulb temperature of 80°F (26.5°C),…

A: Air conditioning: It is a process in which air gets heated or cooled to maintain its properties to…

Q: Moist air at 35 °C and 70% relative humidity, passing through an evaporator of a refrigeration…

A: It is given that the air at a dry bulb temperature of 35 degrees passes over a refrigeration system.…

Q: Calculate the specific volume relative humidity, enthalpy, and degree of saturation of dry air when…

Q: (a) the temperature and relative humidity of the air when it leaves the heating section, (b) the…

A: Given: T1=150C humidity=55% V1=30 m^3/min T3=25oC humidity3=45% To determine: (a) the temperature…

Q: Pls. answer this ..Thank you! Two airstreams are mixed steadily and adiabatically. The first stream…

Q: At 1 atm, 27°C, and 50% relative humidity, atmospheric air from the inside of a car enters the…

Q: Calculate (a) the specific volume, (b) the enthalpy, and (c) the absolute humidity of the air at 55…

A: Solution:

Q: air-water vapor mixture has a relative humidity of 40% and an enthalpy of 50 kJ/kg. What is the…

Q: Is it possible that during sensible heating process the condition of air reaches a relative humidity…

A: It is not possible that during sensible heating process the condition of air reaches a relative…

Q: Air is cooled and dehumidified as it flows over the coils of a refrigeration system at 100 kPa from…

A: Answer is (a) 14 KJ/s

Q: Using a psychrometric diagram, describe the heating and humidification process from the following…

A: Initial condition of air, =40oC dry bulb and 60% RH Final condition of air, =90oC dry bulb and 25%…

Q: 12 bales of cotton, each weighing 486 lb, were held for conditioning in a humid warehouse kept at a…

Q: The dry-bulb temperature and wet-bulb temperature of a sample of air are 23°C and 18°C,…

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

A: An air conditioner takes the warm air from a room, extracts its heat with the help of refrigerant…

Q: In an auditorium a temperature should not exceed 23 deg C and 55% relative humidity, total occupancy…

A: Given: The auditorium temperature, T1 = 23 C The relative humidity, RH = 55% The number of people, N…

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

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

A: An air-conditioning system operates at a total pressure of 1 atm Air enters the heating section at…

Q: Atmospheric air at a temperature of 10°C and relative humidity of 0.30 is first heated to a…

Q: Using a psychrometric diagram, illustrate the heating and humidifier process from the following…

A: Initial condition of air, =40oC dry buld and 30% RH Final condition of air, =90oC dry bulb and 25%…

Q: 5. On a summer day, the pressure is 1 atm, the temperature is 32°C, and the relative humidity is 95…

A: Solution is given below.

Q: A dehumidifier brings in saturated wet air (100 percent relative humidity) at 30°C and 1 atm,…

Q: An industrial plant requires that 12,000 kg/s of water be cooled from 40℃ to 30℃. Inlet air for a…

Q: Calculate the humidity ratio in kg of vapor per kg of dry air.

Q: Using a psychrometric diagram, describe the heating and humidification process from the following…

Q: 2. Air flowing at 2 kg / s has a dry ball temperature of 60 ° C and a wet bulb temperature of 30 °…

A: For air 1, ma1=2kg/s=0.162m3/sva1=0.162m3/sTdb=60°CTwb=30°C for air stream 2,…

Q: Moist air flowing at 2 kg/s and a dry bulb temperature of 50 C and wet bulb temperature of 30C…

A: state (1) dry bulb temperature (DBT) = 50°C wet bulb temperature (WBT) = 30°C moist air flow = ma1…

Q: Hot air (3 m3/s) at 80 °C and 5 % relative humidity enters to a dryer and exit at 90% relative…

A: The required properties of the air at the inlet can be determined as, Also,

Q: Cooling water leaves at 35ºC and at 100 kg/s from the condenser of a thermal power station and…

Q: The partial pressure of wale air sample of relative humidity 70% is 1.6 kPa, the total pressure…

Q: Using the Psychrometric chart, Fig. A-9, determine the relative humidity, the humidity ratio, and…

A: Plot the position of dry bulb temperature and wet bulb temperature on your psychrometric chart.

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

Q: Air enters a heating section at 95kPa, 10°C and 30% relative humidity. The air flow rate is 6…

A: Given:T1=95kPaP1=10°C∅1=30%V.1=6m3/minT2=25°C To find:- a) Heat addition rate b) Relative humidity…

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

A: Solution:

Question

show complete solution

1. Using the fundamental equations of moist air processes, calculate the enthalpy of moist air at
dry bulb temperature of 320c and 60% relative humidity.
Answer:
Lenthalpy kJ/kg d.a.
2. Using the fundamental equations of moist air processes, calculate the humidity ratio of moist
air at dry bulb temperature of 720F and 650F wet bulb temperature.
Answer:
humidity ratio Ib/lb d.a.

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 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

The standard design conditions for air-conditioning systems established by the Air-Conditioning, Heating and Refrigeration Institute (AHRI) are outside temperature _____F, inside temperature ______F, with a humidityof____%.
Define a near-azeotropic refrigerant blend, and give twoexamples.
The recommended relative humidity for a home is between A. 500/0 and 70%. B. and 40%. C. and 50%. D. and 60%.
PLEASE SOLVE ANY TWO QUESTIONS. a) Air at 80°F DB and 50% RH is cooled and dehumidified to 50°F and 100% RH. What is the rate of latent heat removed from 1,000 CFM of air? b) If 500 CFM of outside air at 96°F DB and 76°F WB is mixed with 1,500 CFM of return air at 80°F DB and 50% RH, what is the specific humidity of the mixed air stream? c) A room has a sensible cooling load of 32,000 Btu/hr. The room latent load is 12,000 Btu/hr. What sensible heat factor results from these loads? d) Air at 40°F DB enters a furnace with a heating capacity of 50,000 Btu/hr. If the temperature of the air is increased to 90°F, what is the air flow rate supplied to the furnace? e) Find the enthalpy of air whose dry bulb temperature is 76°F with a humidity ratio of 60 grains/lb f) Air at 30°F DB and 80% RH is heated to 75°F DB by passing it over a heating coil (i.e. sensible heating only) What is the wet-bulb temperature of the heated air?
Moist air enters a duct at 10 °C, 80 % RH, and a volumetric flow rate of 150 m3/min. The mixture is heated as it flows through the duct and exits at 30 °C. No moisture is added or removed, and the mixture pressure remains approximately constant at 1 bar. For steady-state operation the rate of heat transfer, in kJ/min; and the relative humidity at the exit. Compare your result with the psychrometric chart analysis ans no.3......urgent
f. A single-family detached residence of moderate construction has a total sensible load of 53,300 Btu/hr. The design humidity ratio is 0.021 lb of vapor/lb of dry air. Determine the total cooling load.
RH2 = 43% What is the specific humidity of the air stream #1, w1 (lbm H2O/lbm air)? What is the specific humidity of the air stream #2, w2 (lbm H2O/lbm air)? What is mass flow rate of dry air in stream #1 (lbm/s)? What is mass flow rate of dry air in stream #2 (lbm/s)? What is the relative humidity of the outlet (%)?
Moist air exists at a dew point temperature of 18°C, 60% RH, and a pressure of 96.5 kPa. Determine the humidity ratio and specific volume.
( Handwritten Sol) The air in a house is at 19°C, 59% relative humidity, and total pressure 89kPa. If air is cooled at constant pressure, the temperature at which moisture begins to codense is:
During performances, a theatre experiences a sensible heat load of 500,000 Btu/hr and moisture load of 175 lb/hr. Air enters the theatre at 65°F and 55% relative humidity and is removed when it reaches 75°F or 60% relative humidity, whichever comes first. What is the ventilation rate in mass of air per hour?
Consider 2000 ft3 of an air–water vapor mixture at 14.7 lbf/in.2 , 90 F, 70% relative humidity. Calculate the humidity ratio, dew point, mass of air, and mass of vapor.
Air at 24 °C dry-bulg and 15 °C wet-bulb enters a humidifier and leaves at 41 °C dry-bulb and 21 °C wet-bulb. How much moisture has been added per kilogram of dry air?