Steel Design (Activate Learning with these NEW titles from Engineering!)
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 9, Problem 9.2.2P
To determine

(a)

To check:

The flexural strength is adequate or not.

To determine

(b)

To check:

The flexural strength is adequate or not.

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3. Consider a new 1800 MW power plant that burns dry sub-bituminous coal in a PC-wall-fired, wet bottom furnace with plant efficiency of 39%. Use the emission factors in your lecture notes to determine the emission rates of all particulates, PM10, SOx, NOx and CO in ton per year. No gas treatment equipment was installed.
1. The particulate emissions were measured from a factory stack. The stack was divided into three sectors with different cross-sectional areas. The measured velocities and particulate concentrations were given below. Sector number 1 2 3 Cross-sectional Stack velocity area (m²) (ft/s) 1.0 60 1.2 45 1.4 55 Particulate concentration (mg/m³) 450 530 610 a) What is the average particulate concentration in mg/m³? b) What are the particulate emissions per unit area in g/m²-s for sector number 1, 2 and 3? c) What are the flow rates of particulates in g/s for sector number 1, 2 and 3?
An urban county with an area of 1,000 mile² has an estimated 18 million miles of vehicular traffic per day and has a large power plant. The power plant produces 350 MW of electricity at an efficiency of 39%, burning 10,000 Btu/lb coal. The vehicle emission factor for VOCs is 6 grams/mile; the coal-fired boiler emission factor for VOCs is 1.4 lb/ton coal; biogenic emission of VOCs is 0.4 kg/km²-hr on the average. Determine the total emissions of VOCs in tons/day from all sources (mobile, power plant, and biogenic).
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