Tài liệu Handbook of Mechanical Engineering Calculations P24 docx
Tài liệu Handbook of Mechanical Engineering Calculations P24 docx
... 24.17
This procedure is the work of Allen S. Hall, Jr., Professor of Mechanical En-
gineering, Purdue University; Alfred R. Holowenko, Professor of Mechanical
Engineering, Purdue University; and ... procedure is the work of Richard M. Phelan, Associate Professor of Me-
chanical Engineering, Cornell University.
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Tài liệu Handbook of Mechanical Engineering Calculations P7 docx
... 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...
Tài liệu Handbook of Mechanical Engineering Calculations P15 docx
... (2.1 cm /m) of length?
Calculation Procedure:
1. Sketch the building roof
Figure 13 shows the building roof and machinery room roof. Indicate on the sketch
the major dimensions of the roof and machinery ... replacement of existing water closets which use excessive amounts of water,
in view of today’s new environmental laws and regulations.
A further benefit of the ULF units is the...
Tài liệu Handbook of Mechanical Engineering Calculations P21 docx
... proceeds.
This procedure is the work of Richard M. Phelan, Associate Professor of Me-
chanical Engineering, Cornell University. SI vales were added by the handbook
editor.
SELECTION OF A RIGID FLANGE-TYPE ... for a reasonable
wear rate.
The shear of the screw threads with a factor of safety of 2 and the shear stress
determined earlier gives a length of engagement of
pQ
L
ϭ...
Tài liệu Handbook of Mechanical Engineering Calculations P3 pdf
... 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
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Tài liệu Handbook of Mechanical Engineering Calculations P4 pptx
... 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...
Tài liệu Handbook of Mechanical Engineering Calculations P5 pdf
... reserved.
Any use is subject to the Terms of Use as given at the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
5.10
POWER GENERATION
traction throttle flow is (SR)(kW output)
ϭ
9.25(10,000)
ϭ
92,500 ... output of the existing system is
increased, as noted, because of increasing flow to the steam turbine’s condenser.
This increased output offsets the cost of...
Tài liệu Handbook of Mechanical Engineering Calculations P6 pdf
... 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...
Tài liệu Handbook of Mechanical Engineering Calculations P8 doc
... subject to the Terms of Use as given at the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
8.10
PLANT AND FACILITIES ENGINEERING
residential, industrial), and other plants. Both ... 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...
Tài liệu Handbook of Mechanical Engineering Calculations P9 pdf
... (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-H...