Solar Heating / Wind Power / Solar Power / UK Grants

Given that waste pipes can and do block. I thought the less that went inside one the better.

Reply to
Ed Sirett
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In message , The Natural Philosopher writes

Talking of which...

We used to keep the tea leaves in a large bucket where I work. The top was frequently left off. We also had a pet cat.

Now, we have tea bags and no cat.

Reply to
Si

The message from "Mary Fisher" contains these words:

But you live in a fridge.

Reply to
Roger

Not that short a length, IIRC, and thus a bit of a problem to fit. I think the key thing is the skin effect, only achievable if the exchanger is mounted vertically. Any horizontal exchanger is going to be a lot less efficient, as the pipe won't be full.

Reply to
kevallsop

I think you are right on all counts. The first hit on a search for the term "shower heat recovery" gets a picture at

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not cheap and only 1 10mm flattened pipe. It does use the term "gravity film" to paint a picture of how it works.

A 29" vertical drop may take a bit of accommodating!

AJH

Reply to
AJH

Do a search on this group on this product. I did something on it..

Reply to
Doctor Drivel

Two years on ...

"Hundreds of homes could soon run on renewable electricity after the Environment Agency (EA) announced it was looking for a developer to create a sustainable hydropower scheme at Teddington Weir. ... "

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Reply to
Tony Bryer

Green technologies are corporate pork & brown overalls.

Insulation wins.

Reduce baseline demand. Plasma TV 580W, CRT 80W, LCD 60W. Desktop & Monitor 80W, Laptop 36W, Laptop with ULV Core Solo 12W (=A340/yr).

Heat Pumps can work well. GSHP works very well if a large thermal store, underfloor heating and run on Economy7 cheap rate electricity. Without the underfloor heating you can compensate by dual heat pumps to get the temp-delta high enough (and dual adds redundancy). ASHP work very well with CO2 refridgerant, but require dual stage compressors which are expensive. R410 refridgerant means CoP parity is about -12oC and real world CoP about 2.3, CO2 refridgerant drops CoP to -25oC and increases real world CoP to over 3.5. Whilst GSHP come under Permitted Development the required noise standards for ASHP are still not decided and it requires PP. With modern dense housing I can see "men with noise meter" problems.

Newbuild needs a rethink. Good design & good insulation can dispense with GCH, instead using on- demand electric heating. Whilst wood is ideal in providing space for vast amounts of insulation the UK is reluctant to go "fully wood". I somewhat agree, I would prefer glass-bead/plastic render over 300mm interlocking aero-clay bricks with 50mm Celotex/PB on the inside. It might be possible to modify the aero-brick design to have moulded-in insulation achieving U=3D0.12 in 340mm.

Reply to
js.b1

WTF is that supposed to mean?

Reply to
John Stumbles

Anyone who isn't confused isn't thinking clearly.

Reply to
The Natural Philosopher

Corporate pork = guaranteed demand for companies. Brown overalls = guaranteed unemployment reduction.

A lot of the "green industry" is nonsense: UK domestic wind turbines and UK commercially installed never-payback hot water solar panels.

Insulation, Design, Construction work.

Reply to
js.b1

Maybe if your communication skills were a little better, you could share your understanding of the subject more effectively.

Chris

Reply to
Chris J Dixon

I think js.b1 made the point very effectively. Indeed, no less a person than Professor James Lovelock (of Gaia theory fame) made just the same point only a few days ago.

Climate change has become the most astonishing and profitable meal ticket for so many companies and individuals. Whether it is climate researchers, people studying impacts, designers and manufacturers of "green" items, consultants of all kinds and even economists, they are all sharing the bounty. No wonder they work so hard together to suppress results that contradict their "consensus".

Unfortunately, the climate change industry is such a hugely expensive edifice that it is in danger of collapsing the world economy.

Personally, I'm with Professor Lovelock. We should adapt where we can, but otherwise we should just do our best to enjoy what we have.

Meanwhile, js.b1 has it about right.

Reply to
Bruce

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