Handbook of structural engineering

... eigenvector of Equation 1.62, we can get the buckled shape of Equation 1.52. c  1999 by CRC Press LLC Yamaguchi, E. “Basic Theory of Plates and Elastic Stability” Structural Engineering Handbook Ed. ... the aspect ratio of a component of a steel structural member such as a web plate is large in general, we can often assume k is simply equal to 4.0. 1.4 Defining Terms The fol...

Ngày tải lên: 14/03/2014, 18:11

... using 9000 tons of coal per day is 30,000 tons of CO 2 , 600 tons of SO 2 , and 80 tons of NO. A nuclear fission plant using 14.7 lb (6.67 kg) of uranium produces 6.6 lb (2.99 kg) of highly radioactive material. ... Use as given at the website. Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengi...

Ngày tải lên: 09/11/2013, 04:15

... (0.28 kg) of water per pound (kg) of dry air. Since the water content of the air is a function of the partial pressures, (0.622) (0.5067) /[(2 ϫ 0.5067)] ϭ 0.673 lb of water per lb of dry air ... the quantity of steam, lb m /h (kg/h), lost from the condenser. Calculation Procedure: 1. Compute the mass rate of flow per hour of the air leakage The mass rate of flow per hour o...

Ngày tải lên: 09/11/2013, 04:15

... combustion and increases the weight of the products of combustion per pound (kilogram) of coal burned. Therefore, the weight of the products of combustion is the sum of the weight of the combustion products ... /18)(0.013) ϭ 0.0209, say 0.021 mol of water per mol of air. The product of this and the moles of air gives the total moles of Downloaded from Digital Engineer...

Ngày tải lên: 17/12/2013, 11:15

... M ƒ ϭ lb of moisture per lb fuel burned; M a ϭ lb of moisture per lb of dry air to furnace; C b ϭ lb of carbon burned per lb of fuel burned ϭ C ϭ RC r ; C r ϭ lb of combustible per lb of refuse; ... lb of fuel ϭ W c (14,150), where W c ϭ lb of unconsumed carbon in refuse per lb of fuel fired. With an ash and refuse of 9.42 percent of the dry coal and combustible in the...

Ngày tải lên: 17/12/2013, 11:15

... conditions of 1800 psia (12,402 kPa) and 1050 Њ F (565.6 Њ C). At exit from the cylinder the steam has a pressure of 500 psia (3445 kPa) and a temperature of 740 Њ F (393.3 Њ C). A portion of this ... more heaters. Plot the percent improvement vs. number of stages of extraction, Fig. 6, to observe the effect of additional heaters. A plot of this type shows the decreasing gains...

Ngày tải lên: 17/12/2013, 11:15

... average heat of vaporization of 1000 Btu / lb (2330 kJ / kg) of steam, this exhaust gas flow could generate 8,880,000 /1000 ϭ 8880 lb/h (4032 kg/h) of steam. If oil with a heating value of 145,000 ... types of fuels and the internal-combustion engines using them. Note that where the cost of the fuel is high, the cost of the engine is low; where the cost of the fuel is low, th...

Ngày tải lên: 17/12/2013, 11:15

... Terms of Use as given at the website. Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS 7.46 PLANT AND FACILITIES ENGINEERING 0.392 ϩ 0.784 ϭ 138.226 ft (42.1 m), say 140 ft (42.7 m) of water. ... is 80 percent of bep capacity. For a specific speed of 1090, as before, the percentages of bep head and efficiency are shown in Figs. 36 and 37: 79.5 percent of bep head and...

Ngày tải lên: 17/12/2013, 11:15

... cost of each type of pipe uses the capital-recovery equation, A ϭ (P Ϫ L)(CR) ϩ Li 1 ϩ c, where A ϭ annual cost, $; P ϭ initial cost of each type of piping, $; L ϭ salvage value of each type of ... use plots of friction loss available in engineering handbooks. Cameron Hydraulic Data, Standards of the Hydraulic Institute, and from pump engineering data. Figure 30 shows one...

Ngày tải lên: 17/12/2013, 11:15

... (www.digitalengineeringlibrary.com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Source: HANDBOOK OF MECHANICAL ENGINEERING ... (339.6 m 3 /min) of air at a pressure of 14 lb/in 2 (abs) (96.46 kPa) and a temperature of 60 Њ F (15.6 Њ C). Downloaded from Digital Engineering Library @ McGraw-Hil...

Ngày tải lên: 17/12/2013, 11:15