TCL have been conducting
tests on their Posiflow system using various types of bio-fuel. These
tests have included bio-diesel and Straight Vegetable Oil (SVO) made
from plants such as Jatropha.
The tests have included
start-up and shutdown on bio-fuel with on-line changeover to and from
the normal diesel fuel. The results have shown the Posiflow system to
be ideally suited for use with alternative liquid fuels.
The design of the
posiflow system makes it ideally suited for use with liquid fuels with
a wide range of viscosities and lubricity from volatile Naptha to high
viscosity heavy fuel oil. Providing better than 1% accuracy in fuel
The TCL control system at
Karlshamn Power Station has been installed and has successfully
completed the site commissioning tests. These tests included rigorous
SVK grid compliance testing including:-
- Full load 35MW load
- Island load tests.
- Load acceptance tests.
- Linear droop tests.
- Frequency response tests
- Black start tests
- Loading rate tests
The grid compliance tests
showed that the newly installed TCL system was able to control the
plant within the onerous requirements of this power plant. This
included fast start-up and full load rejection.
Turbine Controls Ltd has
developed a pre-programmed diesel engine governor, TC41-DG.
The unit comes pre-programmed
with the following functions:-
- Start ramp
- Speed control
- Linear corrected droop
- Exhaust temperature control
- Acceleration and deceleration control limits
- Actuator position closed loop control
The TC41-DG can be configured
by the user for the particular diesel engine using setpoint changes
only, without changes to the main system firmware. The TC41-DG offers a
cost effective solution to diesel engine control applications.