POWER May 2010 - 102

BOILER DESIGN
Table 2. Posiflow once-through boiler designs under design, construction,
and operation worldwide. Source: Doosan Babcock
Client
Location
Number of
units
Type
Main steam
flow at MCR
Superheater
outlet pressure
Superheater
outlet
temperature
Reheater outlet
temperature
Efficiency
Stage of
project
Expected
completion
date
545C
91.3% (boiler rated
load)
Unit 2 completed
October 2009
Unit 1: 2002
Unit 2: October 2009
569C
90.4% (Boiler rated
load)
Engineering complete
2009
2011
569C
41.3% (net plant)
Construction started
2009
2011
YPGL
Yaomeng, China
2 x 300 MWe
Once-through
subcritical
264 kg/s
168 bar
545C
Zhenxiong Power
Zhenxiong, China
2 x 600 MWe
Once-through
supercritical downshot
529 kg/s
255 bar
571C
GHECO - ONE
Gheco, Thailand
1 x 700 MWe
Once-through
supercritical wall-fired
609 kg/s
251 bar
569C
Two new units using the Posiflow design
began construction in China during 2009.
These two 600-MWe units are designed to
operate at supercritical steam conditions of
255 bar and 571C (Table 2).
Doosan Heavy Industries (DHI), in conjunction
with Doosan Babcock, also is now
constructing a once-through supercritical
700-MWe unit for GHECO-ONE, part of
the Suez Group. The Gheco Power Plant
was ordered by Electricity Generating Authority
of Thailand through international
bidding that attracted keen interest globally.
Gheco will be Thailand's first supercritical
power plant of this capacity and is being
constructed at Map ta Phut, 150 kilometers
southeast of Bangkok. DHI worked closely
with Doosan Babcock to apply the Posiflow
low mass flux vertical tube technology to
this project. DHI is scheduled to complete
the construction and test operation of the
power plant in 2011. ■
-Philip J. Bell (pbell@doosanbabcock
.com) is a process engineer, Chao Hui
Chen is principal engineer, and Ian
Torkington is general manager, front
end engineering for Doosan Babcock
Energy Ltd.
MATERIAL HANDLING EQUIPMENT
Unload rail cars and trucks fast and inexpensively
ASHROSS RUMig-Rail Car
Low profile, high speed railcar unloading system. In-ground system meant
for stationary use.
ASHROSS RUM-Rail Car
Railcar unloading machine,
train drives over the RUM,
walks off the track by itself.
Unloads anywhere, anytime
with speed and efficiency.
ASHROSS RC-Reclaimer
Coal reclaimer. Use with dozer or other equipment. Moves the entire pile of
coal and reclaims the coal in a fast and efficient manner.
ASHROSS 1260 C-Truck
Self-propelled, mobile, towable drive over
unloading system for belly dump and end
dump trailers.
ASHROSS ST-Truck
Stationary drive over unloading system for belly dump and end dump
trailers.
ASHROSS
SINCE 1992
530 South 250 West * Pleasant Grove, Utah 84062
801-785-6464 * Fax; 801-785-6486
www.ashross.com * email: sales@ashross.com
Financing Available
CIRCLE 47 ON READER SERVICE CARD
102
www.powermag.com
PWR golf adv2.indd 1
POWER | May 2010
4/15/10 12:36:09 PM
LOOKING FOR ONE-ON-ONE
NETWORKING TIME?
Join the 5th
&
Annual
GOLF TOURNAMENT
taking place at ELECTRIC POWER
Monday, May 17, 2010
WAKEFIELD VALLEY GOLF CLUB
1000 Fenby Farm Road, Westminster, MD 21158
The cost is $170 per player.
To make reservation,
call Jill Dean at 713-343-1880
For more information, visit
www.electricpowerexpo.com/golf_tournament
Call today!
801-785-6464
http://www.electricpowerexpo.com/golf_tournament http://www.ashross.com http://www.powermag.com
POWER May 2010

Table of Contents for the Digital Edition of POWER May 2010
