A flanged slot hood exhausts particulates produced in an operation. The flow volume for the exhaust system is 10,000 ft3/min. The hood entry is 6 ft * 1 ft. (a) Neglecting entry losses, what is the face velocity for the hood? (b) If the exhaust duct has a 30 inches diameter, what is the velocity in the duct?
A flanged slot hood exhausts particulates produced in an operation. The flow volume for the exhau...
If the air in a 12-inch diameter duct with an air flow of 1,500 ft3/min and a velocity of 14 ft/min flows into a 6-inch diameter duct, what are the new flow rate and velocity? What velocity of air would be required to draw toxic vapors into a duct 24 inches away from a 12 inch round duct with an air flow rate of 1,500 ft3/min? Compare the flow rates into a hood that needs to capture a contaminant at...
1. You are designing a pumping station and have been asked to size and select a pump from 2 models. The system step is as follows: the discharge line is a 21-inch diameter PVC pipe with an assumed constant friction factor of f 0.014. The length of the piping is 2300 ft with an elevation gain of 40 ft and an exit loss (K-1.0).. The pump station is located near sea level and the temperature of the flow stream is...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...