c) Give the Pasquill-Gifford Gaussian Plume Model for estimating the ground levelpollutant concentrationsd) Two houses are in the same direction 200 m and 400 m away from the chimneyof a factory emitting oxides of nitrogen at the rate 120g per second. Which ofthese 2 houses would suffer the most pollution from the factory? Theatmospheric stability is moderately stable. Take the wind speed as 1 m/s. Theeffective chimney height is 100m

Answered: Image /qna-images/answer/b8b50f52-85c4-4801-b3ef-19236f57504a.jpg

Answered: c) Give the Pasquill-Gifford Gaussian…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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When a fluid flows over a surface, the shear stresS I (N/m) at the surface is given by the expression du dy surface where u is the viscosity (N-s/m), u is the velocity parallel to the surface (m/s), and y is the distance normal to the surface (cm). Measurements of the velocity of an air stream flowing above a surface are made with an LDV (laser-Doppler-Velocimeter). The values given below were obtained. y u y и 0.0 0.00 2.0 88.89 1.0 55.56 3.0 100.00 At the local temperature, u = 0.00024 N-s/m. In four decimal places, calculate du/dy at the surface using all the points.
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An underground storage tank (volume =1 m') spills its contents of 1 kg of TCE in a 10 m thick sand aquifer. the seepage velocity is 1 m/day in the x direction. the longitudinal dispersivity is Im, transverse and vertical dispersivities are 0.1 m. A) calculate the maximum concentration at distance x= 500m B) if the contaminant was uniformly spilled over the 10m thickness of the aquifer what is the m concentrations at x= 500m with longitudinal dispersivity is Im, transverse dispersivity is 0.1 m and vertical dispersivity=0
Calculate (a) the specific volume, (b) the enthalpy, and (c) the absolute humidity of the air at 40 ° C and the relative humidity of 49%, at a barometric pressure of 770 mm Hg. a) specific volume = .... m³ / kg b) enthalpy = ... (kj / kg air) c) absolute humidity = .... (kg water / kg air)
Editing Q1. Three types of pin fins. The fins will be subjected to a gas in cross flow at v= 10 m/s. The cylindrical fin has a diameter of D 20 mm, and cross-sectional area is the same for each configuration shown in the sketch. V, T, V, T, V, T. Configuration A Configuration B Configuration C For fins of equal length and therefore equal mass, which fin has largest heat transfer rate? %3D Assume the gas properties are those at T (treat it as air) = 350 K. Hint: Assume the fin can be treated as infinitely long. D Focus stes)
An air whose cross-sections are visible in the figure on the side Channel 40 cm diameter and 60 cm tall test section references The air temperature is 200oC. At the entrance of the Test section A uniform airspeed of 2 m/s was measured.a) the number of Reynolds at the end of the test section (Rex)calculate.b) limit layer thickness at the end of the test sectioncalculate.c) air velocity test on centerlinewhat percentage increases by the end of the section,calculate.d) local surface friction at the end of the test sectioncalculate the coefficient. v = 1,516 . 10-5 m2/s.
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The concentration of salt ? g/L in homemade soap is given as a function of time as follows: ??/dt = (0.37? − 0.03)? At the initial time, ? = 0 minute, the salt concentration is 20 g/L. Choose a step size in a range of 1 < h ≤ 1.5 minutes for the interval from 0 to 8h minutes and apply THREE (3) numerical methods to compute the salt concentration. Select the best numerical method to estimate the salt concentration and justify your answer. method 1: ruler's method
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