A production well was discharged and tested through an atmospheric silencer at sea level (1 bar absolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well was flowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir height were 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of the well.
A production well was discharged and tested through an atmospheric silencer at sea level (1 bar absolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well was flowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir height were 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of the well.
Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy
Section: Chapter Questions
Problem 20P
Related questions
Question
1) A production well was discharged and tested through an atmospheric silencer at sea level (1 bar
absolute) using a lip pipe with a diameter of 25 cm and a weir box with a 90 ° V-notch weir. The well was
flowing at a wellhead pressure of 6.5 bar gauge and the measured lip pipe pressure and weir height
were 3 bar gauge and 0.10 m, respectively. Calculate the discharge enthalpy and total mass flow of the
well.
2) answer A B AND C on the pic
![4. A geothermal power plant with two production wells and one reinjection well is operating at a
separator pressure of 7 bar gauge, turbine inlet pressure of 6.5 bar gauge and condenser pressure of
0.10 bar absolute. Production well no. 1 has a mass flow rate of 35 kg/s and enthalpy of 2150 kJ/kg.
Production well no. 2 has a steam fraction of 64% and enthalpy of 1975 kJ/kg. Total mass flow entering
the separator is 88 kg/s. Isentropic efficiency of the turbine is 82%. The power plant's house load due to
pumps and compressors is 1.4 MW. (Note: Include solutions to your answers to get full credit).
Calculate the following: (26 points)
a) Steam flow of production well no. 2
b)
Enthalpy of the two-phase fluid entering the separator
c) Steam flow going to the turbine
d) Brine flow for reinjection
e) Gross turbine power
two-phase
SEPARATOR
ww
PRODUCTION WELLS
steam
dump line
t
THERMAL POND
SILENCER
brine
ROCK MUFFLER
SCRUBBER
REINJECTION WELL
TURBINE
Figure for Problem No. 4
NCG EJECTOR
GENERATOR
NCG
CONDENSER
condensate
cooling water
PUMP
COOLING TOWER
condensate
blowdown](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6aa362fe-1cce-43cd-adaf-d98131e5ab72%2F0bd89106-af00-4688-a9fd-8604759ee7f4%2Fcu1fao_processed.png&w=3840&q=75)
Transcribed Image Text:4. A geothermal power plant with two production wells and one reinjection well is operating at a
separator pressure of 7 bar gauge, turbine inlet pressure of 6.5 bar gauge and condenser pressure of
0.10 bar absolute. Production well no. 1 has a mass flow rate of 35 kg/s and enthalpy of 2150 kJ/kg.
Production well no. 2 has a steam fraction of 64% and enthalpy of 1975 kJ/kg. Total mass flow entering
the separator is 88 kg/s. Isentropic efficiency of the turbine is 82%. The power plant's house load due to
pumps and compressors is 1.4 MW. (Note: Include solutions to your answers to get full credit).
Calculate the following: (26 points)
a) Steam flow of production well no. 2
b)
Enthalpy of the two-phase fluid entering the separator
c) Steam flow going to the turbine
d) Brine flow for reinjection
e) Gross turbine power
two-phase
SEPARATOR
ww
PRODUCTION WELLS
steam
dump line
t
THERMAL POND
SILENCER
brine
ROCK MUFFLER
SCRUBBER
REINJECTION WELL
TURBINE
Figure for Problem No. 4
NCG EJECTOR
GENERATOR
NCG
CONDENSER
condensate
cooling water
PUMP
COOLING TOWER
condensate
blowdown
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