handbook of food engineering practice
handbook of food engineering practice
... range of food products shows
worthwhile accuracy improvements, especially below θ
if
, use of more complex alternative
models of similar accuracy is difficult to justify.
For porous foods of the ... include the range
important for food freezing. The Maxwell-Eucken model was one of the next best models.
Use of the relatively simple Maxwell-Eucken model to take account of poros...
Handbook of Mechanical Engineering Calculations P1
... 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...
Handbook of Mechanical Engineering Calculations P2
... (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...
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
Downloaded from Digital Engineer...
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
... 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...
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 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 and...
Tài liệu Handbook of Mechanical Engineering Calculations P8 doc
... 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...
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-Hil...