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Q:
What is a combined cycle?
Q:
Why is the combined cycle more efficient?
Q:
What are the major safety measures applied within the site?
Q:
Is there a plan of crisis management?
Q:
Who can inform me about possible
professional experience with CPC (training course, employment,
etc....)?
Q:
It is possible to visit the Power Plant?
1) What is a combined cycle?
The Combined Cycle is the combination of two techniques of
electricity production. The first technique related to the
"Gas turbine" (GT) consists in producing electricity
from the expansion of the combustion gases. The second technique
related to the “Steam Turbine” (ST) uses the expansion
of the steam. In the Combined Cycle, the exhaust gases of
the GT are recuperated in "boilers" to produce steam
at high pressure (between 50 and 100 bar) and at high temperature
(more than 500°C) used to activate the steam turbine.
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2) Why is the combined cycle more efficient?
The total average output of a Combined Cycle is about 50%
whereas it is only 30% for a gas turbine and 40% for a steam
turbine. This represents an important saving in natural gas.
The boilers are equipped with a system of "additional
firing" which increases of power of Combined Cycle from
360 to 470 MW. The pure water (demineralised), which is used
in the boilers to produce steam, is obtained from seawater
and is desalinated in the water treatment plant mainly by
using the two techniques of "opposite osmosis" and
“electric deionisation”.
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3) What are the major safety measures applied
within the site?
Periodic tests of the components, equipments, systems and
fire fighting.
Strict application of the security instructions during the
execution of various maintenance works on the site.
Safety training of the staff at the STIR fire school and first
aid (Civil Protection).
Periodic meetings with the personnel and targeted meetings
before major outages.
Attendance of the subcontractors is also required at all meeting.
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4) Is there a plan of crisis management?
The company is equipped with an Internal Plan for Operation
(I.P.O.); it defines and describes all the actions to be taken
if a serious incident occurs.
Emergency and evacuation plans are carried out regularly .
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5) Who can inform me about possible professional
experience with CPC (training course, employment, etc....)?
You must send a written request to CPC Human Resources: rsouissi@carthagepower.com.tn
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6) It is possible to visit the Power Plant?
It is always possible to visit the power plant by presenting
a written request to Human Resources.
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