Work Problem 4-24 but replace the 100 percent outdoor air requirement with 25 percent outdoor air and use high-performance filters for the return air. Gravimetric efflciency must be at least 99 percent in the
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Heating Ventilating and Air Conditioning: Analysis and Design
Additional Engineering Textbook Solutions
Mechanics of Materials, 7th Edition
Applied Statics and Strength of Materials (6th Edition)
Fluid Mechanics Fundamentals And Applications
Engineering Mechanics: Statics & Dynamics (14th Edition)
Fundamentals Of Thermodynamics
Manufacturing Engineering & Technology
- he night-time chilled water system is not a closed loop system, meaning that some amount of water is lost due to evaporation every night. If it is 96% efficient (i.e. 4% of the water flow rate is dispersed to the outdoor air and needs to be replaced), how much make up water does it need to draw from the municipal water supply daily (in gallons)? Round to nearest integer. (Given: Qheat loss = 1,500,000 Btu) Total gallons in water tank: 1500 gallons//system runs: 10 hoursarrow_forwardQ/ Air is to be bubbled through the solution in the reactor CSTR, in order to strip out of the solution trace amounts of a solvent that have contaminated the water. The rate of loss of the solvent from the solution can be characterized by the equation r = -0.03/min c, where c is the solvent concentration. What fraction of the solvent will be removed from the water as it passes through the reactor with residence time is 26.4 min.arrow_forwardCalculate the height of chimney required in a boiler in which natural draught is 25 mm of water. The flue gases are at temperature of 600K , atmospheric air temperature is 25 C and 15 kg air per kg of fuel is required in boiler.arrow_forward
- Subject :- Mechanical Engineeringarrow_forwardExplain ur answerarrow_forwardSubject : Thermofluid Question : Air at 20oC flows in a 0.60 m diameter pipe at a rate of 15 m3/s as shown in Figure 3. The pipe diameter changes to 1.2 m through a sudden expansion. i. Assess the pressure rise across this expansion. ii. Explain how there can be a pressure rise across the expansion when there is an energy loss (KL ≠ 0).arrow_forward
- Calculate the numerical values of Ke and Ks in Problem 6.5 in SI units.arrow_forwardAn air-handling system must handle 3000 cfm with a pressure drop of 0.2 in. wg available for the filter in the size 12 x 24 x 8. Select a filter system that will have a gravimetric efficiency of at least 98 percent in the particle size range of 0-5 x 10^-3 mm. How many filter modules will be required?arrow_forwardSolve the attachmentarrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning