Siemens Power Generation (PG)
is to build a combined cycle power plant with seawater
desalination facility in Pakistan.
Purchaser is the Karachi-based independent power provider
DHA Cogen Ltd.
The new power plant in the Pakistani harbor city will
have an installed capacity of 94 megawatts and produce
approximately 14 million liters of drinking water daily.
The plant is a key component of a USD600-million infrastructure
project being implemented by the Defense Housing Authority.
When completed, this project will provide a housing area
for approximately 800,000 people. The new power plant
is scheduled to come on line in early 2007. By linking
the power plant with a thermal desalination facility almost
85 percent of the energy contained in the natural gas
will be utilized. A second unit of this type is planned.
DHA Cogen Power & Desalination Project –
Achieving Self Sufficiency in Water & Power
The plant to refine seawater so that human
beings can take it is a milestone in the history of Pakistan.
It will be the first desalination project of significant
size in the country.
The principle of desalination is not new. Some of the earliest
historical reports show that simple distilling equipment
was used on sailing ships crossing the Atlantic in the sixteenth
century to desalinate seawater.
The same principle have been refined and enlarged to develop
desalination technology whose latest fruit is the state-of-the-art
water desalination plant which is located in DHA. The novel
feature of the plant is that apart from desalinating three
million imperial gallons of water, it will also generate
94 MW of power every day.
The pre-commissioning activities of DHA Cogen Ltd. (DCL)
will start by the end of 2006. the plant’s c power
train by M/s. Siemens, Germany includes a V 64.3A gas turbine
and a steam turbine on a single shaft configuration together
with a heat recovery steam generator (HRSG). The steam turbine
is designed to exhaust steam directly to the two MED (multi
effect distillation) plants to provide energy input to the
MED desalination process. The MED units are being supplied
by the leading international suppliers M/s. Alfa Laval,
Denmark. The facility also includes the necessary support
infrastructure in terms of fuel gas supply, seawater intake,
132KV Sub Station, water treatment, under ground storage,
workshop, stores, control room and administration offices
for supply of water and electricity to the local distribution
systems operated by CBC/DHA and KESC respectively.
SOURCE : DHA NEWS
- A Publication of Pakistan Defence Officers Housing Authority
Karachi
Spring
- 2006 Edition
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