Heating Ventilating and Air Conditioning: Analysis and Design
6th Edition
ISBN: 9780471470151
Author: Faye C. McQuiston, Jeffrey D. Spitler, Jerald D. Parker
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4, Problem 4.31P
Fora 3000-ft3 combination and exercise operation, it is desired to reduce the outdoor air intake rate to a minimum by filtering and air recirculation. (a) Design a system using filters having an efficiency of 0.50 and a pressure loss of 0.14 in. wg at 350 ft/min face velocity. Pressure loss should not exceed 0.20 in. wg. Outdoor air contaminants are negligible. (b) Discuss how the choice of a filter would be influenced in this case should the cooling load require a larger supply air rate than the ventilation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Read and solve, include the units in each step.
All tasks
Dusty air at a fertilizer plant flows through a 70%-efficient cyclone and then through an ESP. The inlet air to the cyclone has a dust loading of 50 grains/cubic foot. in order to meet a control standard of 98.5% collection efficiency for the fertilizer plant as a whole, what is the allowable concentration of dust (in grains/cubic foot) in the air that exits from the ESP?
Chapter 4 Solutions
Heating Ventilating and Air Conditioning: Analysis and Design
Ch. 4 - Using Fig. 4-1, draw a conclusion about the...Ch. 4 - Using Fig. 4-1, draw a conclusion about the...Ch. 4 - Select comfortable summer design conditions (dry...Ch. 4 - It is desired to use a space as a large classroom...Ch. 4 - An indoor tennis facility finds that it has...Ch. 4 - Work Problem 4-5 for an average air speed at court...Ch. 4 - In an occupied space the mean air velocity is...Ch. 4 - An occupied space is being held at 76 F (24 C) and...Ch. 4 - What do you think is the best thermostat setting...Ch. 4 - With the air conditioning running and the...
Ch. 4 - Discuss how an emergency government mandate to set...Ch. 4 - In the heating seasons the heat loss from a...Ch. 4 - Air motion can be good or bad, depending on the...Ch. 4 - To save energy in large, chilled water systems,...Ch. 4 - Overhead fans (Casablanca fans) are often reversed...Ch. 4 - A school classroom is designed for 30 people. (a)...Ch. 4 - Carbon dioxide is being generated in an occupied...Ch. 4 - Each person in a room is assumed to be producing...Ch. 4 - An air-handling system must handle 2000 cfm with a...Ch. 4 - Prob. 4.20PCh. 4 - How many filter modules will be required using the...Ch. 4 - Work Problem 4-21 assuming that the filter is a...Ch. 4 - The M-200, 0.60.60.2 filters of Table 4-3 are to...Ch. 4 - Investigate the feasibility of using 100 percent...Ch. 4 - Work Problem 4-24 but replace the 100 percent...Ch. 4 - Using M-15 filter media and the requirement of 60...Ch. 4 - A filter system is available that will filter out...Ch. 4 - A maximum of 10 smokers are anticipated in a smong...Ch. 4 - Solve Ex. 4-4 assuming that the filter is in...Ch. 4 - Solve Problem 4-28 assuming that the filter is in...Ch. 4 - Fora 3000-ft3 combination and exercise operation,...Ch. 4 - A classroom with a capacity of 225 people is...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
One of the problems with waterjet cutting is that the process is very noisy. Why?
Degarmo's Materials And Processes In Manufacturing
If B is accelerating at 1200 km/h2 while A maintains a constant speed, determine the velocity and acceleration ...
Engineering Mechanics: Dynamics (14th Edition)
8. If a liquid evaporates at a rate of 50 kilograms per minute [kg/min], what is this evaporation rate in units...
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
The condenser of a steam power plant consists of AISI 302 stainless steel tubes (ks=15W/mK) , each of outer and...
Fundamentals of Heat and Mass Transfer
Express the moment of the couple acting on the rod in Cartesian vector form. What is the magnitude of the coupl...
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
What parts are included in the vehicle chassis?
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
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
- I need answer within 20 minutes please please with my best wishesarrow_forward1. In less than 100 words, describe how the reciprocating air compressors (applicable to a particular purpose) can be improved in terms of sustainability in terms of energy use and pollution effect. 2. Cost implications or projections data/calculations from the idea(s)arrow_forwardCalculate the EER rating of a 20 ton (240000 Btu) air conditioning unit with an average electrical load of 30 kW. An air conditioning plant supplies air to a room at a rate of 2.5 kg/s, the supply air being made up of equal parts by weight of outdoor and recirculated air. The mixed air passes through a cooler coil fitted with a by-pass duct, face and by pass dampers being used for humidity control. The air then passes through an after heater and supply fan. In a test on the plant, the following conditions (Table Qu 4) were recorded; 3 Table Qu. 4: Parameters recorded Relative humidity Dry bulb temperature °C Wet bulb temperature °C % Outdoor air 270 20.5 Room air 210 50 Supply air Air leaving cooler 160 11.8 80 90 coil Make neat sketches showing the plant arrangement and the psychrometric cycle and identify the corresponding points on both diagrams. Calculate the following; mass of air through the cooler coil load on cooler coil load on heaterarrow_forward
- please provide full solution for review and comparisonarrow_forwardPlease find correct answer urgent, otherwise skip ASAParrow_forwardA stirred-tank blending process is operating with w13500 kg/min, w2 = 200 kg/min, x1 = 0.4 and x2 = 0.75. The liquid volume and liquid density are constant, 2 m3 and 900 kg/m3, respectively. At t=0 x1 is adjusted from 0.4 to 0.6 and w2 from 200 kg/min to 100 kg/min. Plot the weight fraction (x) or concentration against time What is the concentration at t= 1 minute? Control valve Mixture of A and B Pure A Ovarflow linearrow_forward
- A continuous flow calorimeter was used to obtain the calorific value of a sample of fuel and the following data collected: Mass of fuel: 2.25kg Inlet water temp: ll CQuantity of water: 360 L Outlet water temp: 60 CCalorimeter efficiency: 85 % Calculate the calorific value of the sample (kJ/kg).arrow_forwardWhy is compressed air supplied to the sewage treatment plant on board? What is its importance and role?arrow_forwardPls. Answer thank you! The inside design conditions for a conditioned space are 20.1°C dry-bulb and 15.2°C wet-bulb. The air temperature increases 10.6°C as it passes through the conditioned space. The apparatus dew point is 11.9°C. The heat transfer rate is 456 Kw. What is most nearly the volumetric flow rate of the air passing through the space?arrow_forward
- 1. Assess the different types of industrial compressor and identify justifiable applications for each while focusing on the working principle and flow direction2. Discuss compressor faults and potential hazardsarrow_forwardCalculate the daily evaporation rate (in mm/ day) from an open surface, if the net radiation is 220 W/m^2, relative humidity of 42%, water surface temperature is 32 degrees Celsius and the air temperature is 25 degrees Celsius. Assume no other sensible heats or ground heat flux. Use Energy-Budget Method.arrow_forwardNeed correct answer neat and clean with proper explanationarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Heat Transfer – Conduction, Convection and Radiation; Author: NG Science;https://www.youtube.com/watch?v=Me60Ti0E_rY;License: Standard youtube license