Posts Tagged ‘renewable’
wood doctor smoking issues
Dear Sirs:
We have been having what we believe are draft problems with our unit. We
have talked to a technician from your office once or twice on the phone. The
dealer installed a 16 ft chimney sized down to 8″ diameter immediately out
of the unit. This is inside a 50 X 180 FT building. We have had problems
with smoke billowing into the building. There has been a choo-choo train
effect since day one. We added another 4 ft of chimney to the top in April
and that helped the draft but it is still not right.
We have gone through two solenoids that open and close the flow of air
into the unit within the first month. Since the beginning of April we have
been manually opening and closing this to allow more air to enter on the
burn cycle. The dealer thinks this is getting too hot but you can easily put
your hand on the plate itself or anywhere around the solenoid at anytime and
have nothing but luke warm temps maximum. The heat from the choo-choo effect
is not hot so we don’t think that is the case.
Attached are videos illustrating the problems. We would like your help
in determining what to do next. Video 407 shows the choo-choo effect about
half way through and illustrates what we have seen since the initial fire
up. Video 406 shows the burn when the door is open and shows the smoke
billowing out. We feel this should be going up the chimney.
Please help us with some answers. Should we add more stack height to
increase the draw? Should we add a turbo draft unit and if so what is the
cost? Should we have 10″ chimney all the way up? The 8″ reduces the draft
30% by our calculations. If we get the draft right we think the solenoid
will perform better.
Thanks in advance,
Paul/Ken McCracken
Duration : 0:2:44
BioRegional Development Group, UK, Wood-chip from waste
http://www.ashdenawards.org/winners/bdg BioRegional won an Ashden Award for Sustainable Energy in 2006. To find out more visit the link above and check out the Ashden Awards Blog http://ashdenawards.blogspot.com
The BioRegional Development Group has established a ‘TreeStation’ — a centre where waste wood is received from many sources, turned into wood-chip and delivered for use as a heating fuel. Until recently, their site capacity was about 2,500 tonnes per year, but a new chipper has increased this to 15,000 tonnes per year.
Legislation in the London Borough of Croydon and other boroughs requires all significant new building developments to generate 10% of their energy from on-site renewable sources. Biomass heating is one of the most cost-effective ways to do this, but requires a reliable supply of fuel. The London boroughs do have a considerable resource of fuelwood from the management of parks, gardens and woodland, but much of the waste produced is currently sent to landfill, at a cost of about £40 per tonne.
The BioRegional Development Group brokered an innovative deal between tree surgery business, City Suburban Tree Surgeons Ltd, and Croydon Council to manage and dispose of all the Council’s wood waste. BioRegional established a TreeStation — a centre where waste wood is received from many sources, turned into wood-chip and delivered for use as a fuel for heating and combined heat-and-power. Until recently, the TreeStation had produced about 2,500 tonnes of wood-chip per year for a single customer, Slough Heat and Power, who supply heat and electricity to Slough Estates and use an increasing amount of wood in their fuel supply. With recent equipment, the TreeStation now has the capacity to process 15,000 tonnes per year. BioRegional is also setting up drying facilities so that the wood-chip will have lower moisture content, and so be suitable for a wide range of boilers.
Duration : 0:5:13
Vigas Wood Fuelled Boiler – Part 1 of 2
Demonstration of the operation of a Vigas wood fuel boiler. ViGas Boilers employ the latest gasification down burning technology and have sophisticated electronic controls that ensure maximum efficiency and
Duration : 0:8:21