openspaceman

Thanks Alec, I was trying to respond on your omicron thread and finding it difficult. I realised from your posts you had an analytical brain but only now appreciate you qualifications, natural science, chemistry I guess. Please stick around this thread and lets talk about the problems of micro generation, especially in relation to the whispergen and Microgen Stirlings. The microgen unit can still be got for £10k but that's a ridiculous price which is why most here off grid seem to stick with diesel. We had a marinised 10kVAPetter running a remote classroom 20 years ago, the water cooled manifold and coolant heated the rooms but it was far too powerful (to meet peak loads) to get more than 20% conversion to electric. If you have looked at my offering up thread you will see I need to "find" 300W for 10 hours to get me independent of the grid. Of course I don't need it as I am in a residential street and quite happy to accepts my Solar PV array and battery will only get me 80% free of imports. My colleague from our charcoal project went on to solid oxide fuel cells with Rolls Royce, that had promise but never quite got there and was sold to a Korean firm. Luckily Dave was kept on by RR.

Not a fish but something from a house clearance, probably obsolete but thought I'd see if anyone wanted it as a gift before I try elsewhere. I've no idea if it works.

See if you can read any numbers off the turbo for them

First thing you would notice would be loss of power, then the smoke would likely be black from over fueling.

It's like rubbing a magic lamp Jase, one little @ and out you pop.

Do you have a link to this. Can't find anything suitable on their website? Renault Master Trafic / Vauxhall Movano 2.0/2.3dCi 125HP-92KW 786997 Turbo CHRA - londonturbos.co.uk WWW.LONDONTURBOS.CO.UK Description

Sounds better than not pulling branches in at all, tis the way we always worked by stopping the feed with bigger branches. @Jase hutch will know

SPA3000TL inverter with GBLI6532 battery. So the inverter will dish out up to 3kW if there is enough in the battery, which means even if there is too little solar power to run something like a kettle for 5 minutes the battery can store enough on aa dull day in dribs and drabs and then release it when needed. I have charted results so far which show that we consumed 6.42kWh per day on average since installation and solar has provided 3.16kWh on average. The graph shows up till 6 Dec solar has exceeded what we draw from the grid.

110 quid London Turbos

Have you checked if you can just replace the turbo cassette? Also are you sure the crankcase is not pressurising from worn rings?

No idea as I decided the cost outweighed the benefit as we have gas but did snag a domestic system that had a gasifier stove heating a 2 tonne thermal store. if I were to do it I would remove a radiator, as they are redundant, and put the boiler into circuit there but the pipe to the feed and expansion tank would dictate where the boiler would sit with its own coil in the hot tank and ,probably, pump.

Yes British gas trialled them but pulled out. Whispergen made an interesting 3 piston Stirling engined one in NZ and spares are still available but the factory closed after an earthquake. Microgen still do a free piston version at £14k both were only 1kW and integrated into a boiler. Stirling still makes sense as it can be hermetically sealed , for long life like a fridge compressor. Innovations in battery technology makes a rethink worthwhile. I guess about 15% conversion to electricity but the heat can still be used. PV fits well as during the summer it works when no heat needed. Yes but high purity necessary and there are capital cost issues. Where will the hydrogen come from? Up to 10% hydrogen can go in the gas main before pumping losses cause problems, such a fuel cell could filter hydrogen out selectively and methane then burned.

I'm in a sub urban area and only have 4kW of PV installed, two of us in the house ,and we seem to use around 6kWh a day. I'll attempt to log it every few days and produce a chart. It is SW facing so not optimal and year on year seems to produce about 9% of its rated capacity in sunny Surrey. This is way more than our consumption so previously most went back to the grid. I expected electricity prices to rise but not as much as happened so after much delay we had an ac inverter/charger and 6kWh of lithium phosphate battery installed late November. Early days yet but electricity imports have dropped by about 30%. I am still on a fixed tariff but will be on a capped variable from March but am annoyed that not only will the fuel price go up by 40% so will the standing charge.Currently standing charges are about £80/annum for electricity and same for gas. Electricity is 17p/kWh and gas 3p/kWh. Although I have to be grid connected for the system to run I think with a changeover switch and a pure sinewave generator I could run islanded. It would only be worth doing if I had an EV but then I would have no qualms about running on red diesel or natural gas and recouping heat for the house from the exhaust and coolant ( I was involved with a project that did this before successfully). In the meanwhile I would like to pursue other microgeneration methods as I think I only need 200W while the house is heated to make up shortfall but will need a few more moths to be sure. This is the first year we have not switched the gas on for heating, we have got through a lot of wood, gas still does DHW and costs around 40p/day Ain't that the truth

I am not happy with these web based systems and would love something simpler. In my case the Growatt inverter and battery have an interface hosted in china, the app for the phone is far too intrusive so I have denied the access to wifi. Also as the granularity of the sensing is coarse I see instances of the battery being charged from the grid and also exporting to the grid which I specifically do not want. The electricians that fitted the batterry and inverter were goodish but were not able to discuss my needs when that varied from the norm.

Depending on the ground and the coming summer the root contact will keep them good longer than if the wood is harvested and stacked.

Wat?

Sedition won't get that peerage

Yeabut I only got mine in the summer and still playing with it

Looks like he has one of the same as mine @Stubby. I've been drying a piece of beech after testing a split face with my moisture meter. Valiant measured 31% on wettest part of split face and oven dry the overall result was 25%. It bunrned very nicely.

Approved Document J | Part J - Combustion appliances and fuel storage systems | Planning Portal WWW.PLANNINGPORTAL.CO.UK Details of Part J (Approved Document J) of the Building Regulations

Shook old sweet chestnut do this to a much lesser extent without being hollow

In my car (no heating on my tractors and they are historic vehicles but run on red) the hot air blows in at foot level and feels much more comfortable than this room.

Doesn't it depend where you measure it? 600mm above the floor here it is 17.9, at my head height (1200mm) it is 23.3 and this is because cold air is drawn into the room and heated by the 4kW stove 2 metres away and then out via a fan to the living room or up the stairs through the open door. This bad stratification is why I would like underfloor heating but that won't work without a wet system.

no but similar effect

So the fuse blew to protect the upstream cabling but was caused by a downstream fault which replacing the fuse did not fix.