Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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An electrostatic precipitator (ESP) with
5600 m² of collector plate area is 96
percent efficient in treating 185 m3/
s of flue gas from a 200 MW thermal
power plant. It was found that in order
to achieve 97 percent efficiency, the
collector plate area should be 6100 m2.
In order to increase the efficiency to 99
percent, the ESP collector plate area
(expressed in m²) would be
The evaporation rate in Infanta river
basin is 9.15 mm/day. The river
basin has an albedo of 0.06,
temperature 25.3°C, and emissivity
0.18. Calculate the incoming
radiation in the river basin in W/m²
using the energy balance approach.
The density of water is 996 kg/m³.
Ra
Er = AXPw
A
A+Y
E₁ =a-
(R-G)
R₁ = S₁ + L₁
y =
λ=2.501-0.002361 T
0.0016286
2
e,=0.611exp
de
A==
S₁ = S,(1-a)
17.277
237.3+T
4098e,
dT (237.3+T)
L₁ = L₁ - L =-fe'o(T+273.2)
4.15 A gas-condensate reservoir has an areal extent of 200 acres, an average thickness
of 15 ft, an average porosity of 0.18, and an initial water saturation of 0.23. A
PVT cell is used to simulate the production from the reservoir, and the following
data are collected:
Condensate
Produced from
Separator
(moles)
Wet Gas
Pressure
Produced
(psia)
(cc)
Wet Gas
4000 (dew point)
3700
3300
0.
0.75
400
0.77
0.0003
450
0.81
0.0002
The initial cell volume was 1850 cc, and the initial gas contained 0.002 moles of
condensate. The initial préssure is 4000 psia, and the reservoir temperature is
200°F. Calculate the amount of dry gas (SCF) and condensate (STB) recovered
at 3300 psia from the reservoir. The molecular weight and specific gravity of the
condensate are 145 and 0.8, respectively.
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