... given at the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
WATER-SUPPLY AND STORM-WATER SYSTEM DESIGN
14.13
FIGURE 10 Nomogram for solution of the Hazen-Williams equation ... imperviousness of 50 percent if the time of concentration is 15 min? What would
be the effect of planting a lawn over 75 percent of the site?
Calculation Procedure:
1. Compute the...
... 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; ... controlled.
Related Calculations. Developing the performance characteristics of each
piece of equipment as a function of load is the key to determining the mode of
operation...
... the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
19.28
DESIGN ENGINEERING
TABLE 11
Power Ratings of 4L Cross Section V Belts
TABLE 10
Power Ratings of 3L Cross Section V ... diameter
Use the speed ration of the shafts to determine the diameter of the small sheave.
The speed ratio of the shafts is the ratio of the speed of the high-speed shaft to...
... the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
20.18
DESIGN ENGINEERING
the idler gear. An idler gear is generally used to reduce the required diameter of
the driving and ... is the moment of inertia of the high-speed and low-speed
assemblies of this gearset?
Calculation Procedure:
1. Compute the moment of inertia of each gear
The moment of ine...
... 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 ... cu m) of natural gas; 1300 cu ft
of air (36.8 cu m) per gal (0.003785 cu m) of No. 2 fuel oil; 1450 cu ft of air (41
cu m) per gal of No. 5 fuel oil; 1500 cu ft...
... Terms of Use as given at the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
5.4
POWER GENERATION
m) are used. Use the Standards of the Bleeder Heater Manufacturers Association,
Inc., ... 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 interconnecti...
... reserved.
Any use is subject to the Terms of Use as given at the website.
Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS
7.38
PLANT AND FACILITIES ENGINEERING
FIGURE 23 Negative lift (gravity ... this handbook.
Once the required flow rate is determined, apply a suitable factor of safety. The
value of this factor of safety can vary from a low of 5 percent of...
... surges result. The
amplitude of the pressure surge is a function of the rate of change in the velocity
of the mass of fluid. This procedure shows how to compute the amplitude of the
pressure surge with ... factor of 2 for traps installed between a
boiler and the end of a steam main; traps at the end of a long steam main or ahead
of pressure-regulating or shutoff valves usua...