Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.
1 Page
Chapter_09_cascade_impactor
Course: ME 521, Fall 2007School: Penn State
Rating:
Document Preview
Figure 9.7 (a) (b) Cascade impactor: (a) schematic diagram, showing trajectories of particles of three different diameters (adapted from Willeke and Baron, 1993); (b) Andersen eightstage, non-viable, 1 ACFM <a href="/keyword/ambient-air/" >ambient air</a> sampler (from Andersen Instruments Inc.). 100 90 80 70 60 impaction probability 50 (%) 40 30 20 10 0 0.1 1 10...
Unformatted Document Excerpt
Coursehero >> Pennsylvania >> Penn State >> ME 521Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Figure 9.7 (a) (b) Cascade impactor: (a) schematic diagram, showing trajectories of particles of three different diameters (adapted from Willeke and Baron, 1993); (b) Andersen eightstage, non-viable, 1 ACFM <a href="/keyword/ambient-air/" >ambient air</a> sampler (from Andersen Instruments Inc.). 100 90 80 70 60 impaction probability 50 (%) 40 30 20 10 0 0.1 1 10 aerodynamic particle diameter, Dp,aero ( m) 100 stage 7 6 5 4 3 2 1 0 preimpactor Figure 9.8 Particle collection efficiency for each stage of an Andersen eight-stage, 1 ACFM <a href="/keyword/ambient-air/" >ambient air</a> sampler with preimpactor (redrawn from Andersen Instruments, Inc.). 653
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more.
Course Hero has millions of course specific materials providing students with the best way to expand
their education.
Below is a small sample set of documents:
Below is a small sample set of documents:
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 1710/16/2006Today, we will: Review Exam 1 Continue our discussion of the thermodynamics of evaporation in Section 5.2 Do an example problem Discuss dilution ventilation the well mixed mode
Penn State - ME - 521
8.4 Equations of Particle Motion To design particle collection devices and to predict their performance, engineers must be able to predict the trajectories of particles passing through the devices. The objective of this section is to establish equati
Cornell - MATH - 1920
3.8 - Linearization and DifferentialsWednesday, May 11, 2005 2:36 PM4 2
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 3011/15/2006Today, we will: Discuss Computational Fluid Dynamics (CFD) in Chapter 10 Do some in-class examples, using Gambit and Fluent
Penn State - ME - 521
Section 3.4 Hearing and NoiseFigure 3.27 Artist's sketch illustrating the anatomy of a human ear (from US NIOSH, 1973).173Define a sound pressure level: P L P = 20 log10 P0 (3-17)where the term P0 is a reference value,P0 = 2 10-5 Def
Penn State - ME - 521
Some Useful Tips for Copying Plots and Tables from EES to Word and ExcelPrepared by J. M. Cimbala. Latest update: May 2005 To copy an EES plot into Word or Excel:1. In EES, click on the heading (top bar) of the plot window so that the plot window i
Penn State - ME - 521
Equation Sheet for ME 521, prepared by Professor J. M. Cimbala Tensor transformation rules for rotation: Cij cos ij , where ij = angle between the old (i) and new (j) axes. Then, for tensor A, Am = Cim Ai Amn = Cim C jn Aij Amnp = Cim C jn Ckp
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0809/22/2006Today, we will: Begin discussion of Chapter 3 Design Criteria Discuss Section 3.1 Contaminant Exposure Levels Discuss Section 3.2 Fire and Explosions Do some example problem
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 1109/29/2006Today, we will: Continue our discussion of Thermal Comfort and Heat Stress in Section 3.5 Do some example problems Discuss Odors in Section 3.6 Finish the rest of Chapter 3 Do
Penn State - ME - 521
Chapter 5418Example 5.16 - Formaldehyde from Methanol-Fueled Vehicles in Tunnels Given: Methanol-fueled autos receive increasing attention because of their potential to reduce ozone levels in urban areas. While methanol combustion produces fewer
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0509/15/2006Today, we will: Continue discussing Chapter 2 The Respiratory System Do some example problems Do Candy Questions for Candy Friday
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0409/13/2006Today, we will: Finish Section 1.5 Fundamentals Do some example problems Begin overview of Chapter 2 The Respiratory SystemExample Given: A hot summer day: o T = 95.0 F (35.
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 0108/27/2007ME 521 Foundations of Fluid Mechanics IToday, we will: Introduce the course and instructor: John M. Cimbala, 863-2739, jmc6@psu.edu Briefly go over the course website at ww
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 2511/03/2006Today, we will: Continue our discussion about hood suction velocities and isopleths Discuss capture velocity and capture of particles in Section 6.1 Do some example problems ca
Penn State - ME - 521
ME 405Fall 2006Professor John M. Cimbala Lecture 4212/15/2006This is the last lecture! Today, we will: Continue our discussion of impaction between moving particles (spray chambers, scrubbers, etc.) in Section 9.3 Discuss filtration in Sect
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 1610/13/2006Today, we will: Finish our discussion of evaporation rates in Sections 4.5.6 and 4.5.7 Discuss evaporation in confined spaces in Section 4.5.8 Begin discussion of general venti
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 1610/03/2007Today, we will: Continue our discussion of vortex interaction and Helmholtz theorems If time, begin to discuss: The Vorticity EquationFrom last lecture: Helmholtz Vortex Theorem
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 2710/29/2007Today, we will: Discuss tip vortices (trailing vortices) and how they are related to induced dragReview from previous lecture (a finite-span airplane wing at non-zero angle of at
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 4112/13/2006Today, we will: Discuss sampling issues (isokinetic sampling and isoaxial sampling) in Section 9.2 Discuss impaction between moving particles (spray chambers, scrubbers, etc.) in
Penn State - ME - 521
Dilution Ventilation versus Displacement Ventilation Dilution VentilationSupply (diffuser)Supply (diffuser)ReturnReturnor Mixing is enhanced (typically assume well-mixed conditions) Typical in USA in all construction (office, home, and in
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 3111/17/2006Today, we will: Discuss Introduction to Particles and Particle Sizes in Section 8.1 Discuss Statistical Analysis of Aerosols in Section 8.2 Do Candy Questions for Candy Friday
Penn State - ME - 521
4.5 Evaporation and Diffusion 4.5.4 Evaporation and Diffusion through Quiescent Air (page 286)z2 bulk motion of air and j z diffusion of air (a) diffusion of contaminant (j) z1 volatile liquid (species j) ya,1, yj,1 or Pa,1, Pj,1 ya,2, yj,2 or Pa,2,
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 4312/12/2007Today, we will: Finish discussing the classic example problem Blasius flat plate boundary layer Discuss boundary layers with pressure gradients If time, begin a discussion of Fa
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3811/30/2007Today, we will: Discuss the classic creeping flow solution flow over a sphere Do Candy Questions for Candy Friday If time, begin to discuss compressible flow solutions3. Creep
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0609/18/2006Today, we will: Wrap up our discussion about carbon monoxide poisoning Discuss the conditioning of inhaled air in Section 2.3.2 Do some example problems Discuss toxicology in
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 4112/07/2007Today, we will: Do the classic boundary layer example problem the Blasius flat plate boundary layer Do Candy Questions for Candy Friday
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 31u=U u(y) T = T111/07/2007p 0 xToday, we will: Continue working on the example g 2b problem steady flow between parallel plates Start discussing similarity solutions Do an example problem
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0309/11/2006Today, we will: Continue discussing Section 1.5 - Fundamentals Do some example problemsExample Given: The mol fraction of CO in a room is 56 PPM. The molecular weight of CO is
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 2610/26/2007Today, we will: Briefly discuss axisymmetric irrotational (potential) flow Briefly discuss three-dimensional irrotational (potential) flow Discuss lift and drag on 3-D bodies, e
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 2410/22/2007Today, we will: Continue to discuss potential flow using complex variables: flow over a circular cylinder, lift, conformal mapping Do some more example problems using complex varia
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 0509/07/2007Today, we will: Discuss how to describe the motion of fluid particles Discuss the strain rate tensor eij Discuss vorticity and rotationality vs. irrotationality If time, compar
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 4412/14/2007Today, [LAST LECTURE ] we will: Discuss Falkner-Skan wedge flows boundary layers with imposed pressure gradients Begin discussing 2-D laminar free shear flows [will continue in
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 2911/02/2007Today, we will: Discuss propulsion of fish, birds, and sailboats Do Candy Questions for Candy Friday Begin a new major topic: Laminar Flow SolutionsNearly Incompressible Lamina
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 0308/31/2007Today, we will: Continue our discussion about tensor notation: the permutation symbol, the epsilon-delta relation, the cross product, comma notation, contraction of a tensor, symme
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 1510/01/2007Today, we will: Begin a discussion of Vorticity Dynamics (Chapter 5)
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 0609/10/2007Today, we will: Compare and discuss two circular flows solid body rotation and line vortex Discuss some miscellaneous topics in Chapter 3 Begin to discuss Chapter 4 Conservatio
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 3411/27/2006Today, we will: Discuss Particle Statistics in Section 8.2 Discuss an example particle size distribution in detail see class handoutD p ,min,j (lower limit) 1 4 6 8 9 10 14 16 2
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 0809/14/2007Today, we will: Continue our discussion of the linear momentum equation (integral and differential) Discuss conservative vs. non-conservative forms of the momentum equation Disc
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3311/12/2007Today, we will: Continue our example similarity solution problem Stokes' first problem Discuss vorticity in Stokes' first problemFluid is initially at rest: u(x,y) = 0 at t = 0
Penn State - ME - 521
ME 405Fall 2006Professor John M. Cimbala Lecture 1510/11/2006Today, we will: Continue our discussion about evaporation of pure liquids in stagnant air in Section 4.5.4 Do some example problems evaporation of pure liquids in stagnant air Dis
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3611/26/2007Today, we will:Note: No lecture 35 Thanksgiving breakFinish discussing the 2-D stagnation point similarity problem Begin a discussion of creeping flowFrom last lecture: 4.
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 1109/21/2007Today, we will: Finish the boundary layer problem we started last time Do an example problem incompressible Couette flow Discuss conservation of energy Do Candy Questions for C
Penn State - ME - 521
Table 1.1Deaths (all ages) in the United States in 1997 (from National Safety Council, 2000). subtotalDeaths due to diseases: (2,168,220 total deaths due to diseases) total cause of death 726,974 heart disease 539,577 cancer (approx. 150,000 lung
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 0909/25/2006Today, we will: Finish our discussion about Fire and Explosion Do some example problems Begin discussion of Section 3.4 Hearing and Noise Do some example problemsExample Give
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 2510/24/2007Today, we will: Continue our discussion of potential flow using complex variables Specifically, discuss conformal mapping and the Zhukhovski transformation
Penn State - ME - 521
8.7 Gravimetric Settling in a Room Consider a room of volume V, height H, and horizontal cross-sectional area A as shown in Figure 8.18, which illustrates both models.c(Dp) = 0 c(Dp) < c(Dp)0H y(Dp)(a)c(Dp) = c(Dp)0(b)(c)Figure 8.18 Grav
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3912/03/2007Today, we will: Briefly discuss Oseen's improvement to Stokes equations Briefly discuss compressible Couette flow If time, begin discussing laminar boundary layers the last topi
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3011/05/2007Today, we will: Discuss the "dynamic pressure" also called the "modified pressure" Do an example analytical solution steady flow between infinite parallel plates If time, brief
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 2010/12/2007Today, we will: Discuss the production of vorticity at a wall, and the heat flux-vorticity analogy Discuss how vorticity gets produced at a wall. Do Candy Questions for Candy Fri
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 2811/10/2006Today, we will: Continue to discuss Exhaust Duct System Design in Section 6.10 Continue to discuss Fan Performance and Selection in Section 6.11 Do some example problems duct d
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 1009/19/2007Today, we will: Do an example problem Control Volume Example: Flat Plate Boundary Layer (See handout on website for the problem setup, as copied below)Consider flow over a two-d
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3711/28/2007Today, we will: Continue to discuss creeping flow (low Reynolds number flow) Discuss the classic creeping flow solution flow over a sphereUFrom last lecture: Creeping flow (lo
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 1910/20/2006Today, we will: Continue our discussion of Unsteady Dilution Ventilation in Section 5.4 Do several example problems unsteady dilution ventilation Discuss Removal by Solid Surf
Penn State - ME - 521
ME 521Fall 2007Professor John M. Cimbala Lecture 2310/19/2007Today, we will: Continue our discussion of elementary 2-D incompressible irrotational flow fields in particular, the power function and the various flows it models Do Candy Questi
Penn State - ME - 521
ME 405 Fall 2006Professor John M. Cimbala Lecture 2010/23/2006Today, we will: Discuss Wall Losses in Section 5.5 Discuss how to measure the wall loss coefficient Discuss Recirculation in Section 5.6 Do some example problemsSection 5.6 R
Penn State - ME - 521
ME 521 Fall 2007Professor John M. Cimbala Lecture 3211/09/2007Today, we will: Discuss Similarity Solutions Do an example problem Stokes' first problem Do Candy Questions for Candy FridayC. Similarity Solutions1. Stokes' first problem