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order to allow easy convection of the volatile gases though the nozzle –
use appropriate tool, applied with in the maintenance kit of the boiler;
o
Close the fuel hopper door, close the ignition flap (push the level);
EXPLANATION : the fuel charged should be heated-up, that’s why at the
initial step of fuel charging a decrease of the temperature of the circulating
water could be observed. The practice shows, that approximately 30 minutes
from the fuel hopper charging process, the thermal capacity of the wood
gasification hot water boiler start to rise and soon it reaches its nominal
thermal capacity and the boiler gets its nominal operating parameters;
Figure 5.7. View of the fuel hopper chamber and the status of the fuel after
approximately 30 minutes of its charging;
The figure above shows, that the wood logs has already been dried out
and even partial carbonization is seen – the wood logs look black, intensive
volatile gases release is observed (the smoke), if any combustion process is seen,
this is due to fresh air penetration in the chamber, because the door is opened (at
nominal operating conditions in this chamber no flame should be seen, only
intensive volatiles release).
At fuel hopper chamber charging process, the following procedure should be
performed:
•
The fuel, that is planned to be charged, should be prepared (it is highly
recommended to arrange the fuel at convenient place in near vicinity of
the boiler) in order to minimize the time, when the door will be opened
