openspaceman

Basically this. When the diesel is producing little power there is a lot of excess oxygen in the cylinder but because little fuel is being used the temperature and pressure remains low, so little oxygen combines with the nitrogen. As you produce more power by injecting more fuel per cylinder the oxygen still remains in excess but now the temperature and pressure increase such that nitrogen and oxygen react to produce nitrogen oxides, this is the stage at which exhaust gas is reintroduced as it contains less oxygen, more carbon dioxide and the same amount of nitrogen. This lowers the temperature in the cylinder and the oxygen concentration. At full power whilst the temperature and pressure are maximised there is little oxygen left to react with nitrogen. So quite a feat to add just the right amount of EGR according to engine parameters at one moment NOx are implicated with combining with chemicals in the atmosphere (mostly sulfates I think) to produce particulates. Adblue in combination with some catalysts in the exhaust introduces urea CO(NH2)2 to combine with these NOx and convert them to plain N2 and more water and carbon dioxide. I've not experienced DPFs and regeneration as all my diesels are older than 10 years, most 40 years old plus but it strikes me EGR will increase soot production and hence DPF blocking and then the regeneration will need added fuel (in the wrong place in the case of the Dmax). If Adblue works then why does an engine need EGR? If DPFs work and reduce particulates why demonise diesels that have them?

I have the vanilla Kisa Combi from about 1985

slower too IME but mine only cut 9" diameter

It looks like an old school stellite tipped solid nose bar (I cannot see the type of nose for sure but the overheated tip suggests this) with a 1.6mm slot for the chain to run in, probably 36" so needs 108 drive link chain and the chain on it looks like a 0.404 full chisel (the 27 refers to the style of chain). From the state of the chain I'd say it has hit something hard and then continued being used There is quite a lot of life left in the chain once it has been sharpened and the depth gauges filed.

I guess you are too far from me to borrow mine?

Yes and when you get to a whorl split each side of the branch and then saw the segment in half or smaller.

Actually it will be a bit more than 40% overall as on the home auction site it says auction premium 15%, online fee 5% and VAT 20% 1.15*1.05*1.2=1.449 and this Ibidder site works out slightly differently 1.2*1.2=1.44

This was always the case

I wish I had put a vertical divider in mine like that and for exactly that reason. I'm over half way through my log store and could have been refilling one half, as it is we still have February, normally the coldest month here. Also with my fetish for checking the moisture content of my logs with a moisture meter I am finding the beech logs in the middle of the stack have up to 28% mc wwb in the middle even though around 17% on the outside so could have done with an extra month of summer seasoning even though they burn perfectly well.

Yes I forgot he is still a part of UK until the sellout is finalised

I think Marcus has lost his € key

Sort of; haulier is the buyer and hasn't picked up the second load, I just wonder if demand has dropped off as I would expect people to have got over the pre Xmas rush and now laying in stock to process before May so as to get a full summer seasoning in.

It would be interesting to see how new stove sales have been affected. In my little parish there is some reluctance to collect a lorry load of ash which was agreed in October.

I did wonder why it was relatively tall with the air inlet low down

or wrong gauge drive link chain

A bit like arbeit machst frei

I see the pellet plant at Brynmenyn, which we worked on and ended up with Woodmat packed up two years ago. It was jinxed before it started as the sawdust supply from Techboard disappeared before it got running. I was thinking of retail logs as well as this RHI stuff, how long was the duration of a RHI subsidy?

I don't know either but can speculate a bit; charcoal made at temperatures lower than 450C is all amorphous (randomly arranged little chains and rings of carbon atoms, above 450 and the chains tend to form in little rings joined together, little graphene like sheets. I suspect that if the charcoal is held at high temperature for a long time then more graphite like substance will be formed. At around 1000C the remaining charcoal is almost pure carbon and is only about 1/6 of the original dry weight (plus in this instance some of the carbon is burned off to get to the high temperature). Now I don't thing you will get much above 1500C in that kiln (diamond turns to graphite at 1200C I think) but when graphite is made from sintered carbon powder and pitch the temperature has to get above 2500C to turn the whole amorphous mass to graphite. This temperature is higher than a steel furnace and cannot be achieved by burning carbon so I suspect it is done in an inert atmosphere by passing an electric current through the charge and resistance heating raises the temperature. My brother would have been able to give a scientific analysis as the physical chemistry of carbon was his field.

I suppose they couldn't just ban domestic biomass heating so they just made it that expensive so that all the small suppliers would drop out.

I don't know but guess it is the way the browser identifies the file. I see it as an audio only but in firefox I can right click on it and save it, I can then play it in a video player.

Then about 3 months before your 70th you will get an invitation to renew your licence, if you have none of the medical problems listed and you can read a number plate at 20 metres you will just need a current photo or the photo on your passport record to get a photo driving licence valid till you are 73 then I guess you have to jump through the same hoops again. If you want to keep your licence a to include heavier (C1, D1) vehicles then you need to do the medical. I let my c1 and D1 entitlements drop.

Do you still wish to drive vehicles weighing over 3.5 tonnes or buses carrying more than 8?? people?

My thoughts too, I think of all the out of rotation coppice I heaped onto bonfires in the past. Hazel is a good firewood but simply doesn't seem to dry much when left as cord. I have some 6" and down stuff felled last February and 35%to off the scale on my moisture meter (though it still burns cleanly in a hot stove). In fact any wood is best processed into final sizes asap but of course this leads to handling problems and increase in volume. Chunked to 4-6" with the accompanying micro splitting and it must dry fast.

I do want to try one of those, but not just for kindling, the B&S engine puts me off. I don't think I'd bother with splitting stuff but I imagine I would need twice the log storage volume.

Yes but if you just want to try it without altering your computer you can run it live from a CD, though it will run much slower. You can also load it onto a new hard drive, leaving the old hard drive in the computer and then change the boot order of the computer, which essentially is what I have recently done. I have used Linux for about 15 years and mint 17 for the last five and now Mint 20.