SteamyTea

A very good question. An ICE is a spark ignition engine. Fuel/air goes in, gets compressed, and at the right time, ignited by the spark. Now the fun starts. The temperature rises extremely fast, closely followed by the pressure, THEN the piston starts to move. There is a slight bit of combustion happening as the piston moves down the bore (flame front and all that, why Wankles are hopeless on fuel economy), but basically the temperature and pressure rises at the very start of the stroke, then rapidly decreases. Diesels on the other hand, limit the initial amount of fuel that is injected, this is ignited purely by the temperature of the compressed air. As the piston moved down the stroke, more fuel is injected, keeping the flame front alive, this keeps the temperature and pressure high for a greater amount of time. It also means that when the crank is 30° either side of 90° from TDC, on the ignition cycle, combustion is still happening, this is the crank position that allows most dynamic torque to be produced. Diesels are often referred to as 3 stage combustion. There are also differences in air delivery pressure and temperature, bore/stroke ratio, gearing etc. Gasoline engine Diesel Engine

Well known that the C connector is a quantum device. Try and plug it in, it will not fit, turn 180°, still does not fit, turn 180° again, still does not fit, again, no, finally after 720° of turn, it fits. Well known and understood quantum spin characteristic.

Is this what you are after?

Kinetic energy at the molecular level. Confused by liquid water's surface tension, and capillary action. Add to that the dynamics of temperature, pressure, humidity differentials, latent and sensible heat, and then some uncertainty, it is a miracle that all roofs keep the water out and stay up. Thankfully we have solutions to partial differential equations to help, but I prefer to call them partial solutions to equations. You get marks for showing your workings.

I think it is confused by practicalities as you mention here. Really just forces and motion once you reduce the units to their most basic.

As it is a cold roof, ventilation should be there. Or convert it to a warm roof. A lot depends on how it is used i.e. permanently heated, or spasmodically heated. That will change where the VCL goes, but down here, on the inside is probably best.

It is easy. Force at a Distance, hence Nm. Remember that acceleration is a change in speed or direction. Another way to look at is is as a change in power. Taking an automotive analogy, for any given amount of power, on a dead level road, with constant weather conditions, you may find that when the motor delivers 20 kW, the car will do say 40 km/h, at 30 kW, 50 km/h and at 40 kW, 55 km/h. Torque is the motors ability to accelerate the car. The reason it can seem confusing is because we tend to use RPM, when we really need to use Radians/second as that is a natural ratio. https://www.engineeringtoolbox.com/work-torque-d_1377.html Or just use the below fudge, it is good enough. Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM) Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488

Get 75 years of advice in 45 minutes https://www.bbc.co.uk/programmes/m001638f

That was lucky. Wave machines have proved to be failures so far, but it was seeing Dr Salter's Ducks, back in 83, that got me interested in the whole RE field.

https://en.wikipedia.org/wiki/Enthalpy_of_vaporization Says 2257 J/g. So yes, think I did get it wrong. So ten times less as you said.

Am and Hegg then. I read in spoonerism monthly that I am this year's shining wit.

Just having Horlicks for mine, after a hot shower, just hope I don't have horrible dreams, but will wake up at home, so no harm done.

Yes, why I suggest people stock up.

Wonder if he was the chap that could not be bothered to come to Lakeside Shopping Centre, Essex, when I was stuck in the lift and having an cleithrophobia episode.

Just getting my Inspector Morse book of cryptic clues out, I may be a while.

Slug pellets.

The type of 'wheel' is not going to affect the the overall energy extraction. Like most energy generation, larger is best.

My second favourite shop, Poundland, usually has a pack of USB adapters.

That term cannot be used at the moment. Think you mean 'Barn Raised'.

Is there anywhere lower i.e. other side of the road. Worth playing Pooh Sticks to calculate the mass flow rate. Then you will find you have one less project to do.

It is because successive governments have devolved powers to LAs. This gives the impression that the government is doing the right thing, but being let down by the LAs. All a load of political bollocks and should stop. The motoring journalist and TV personality James May once said 'if I came to power there would be one law: Don't be an arse'.

243,000 J/g at 30°C. So 67.5 kWh per litre.

You've Been Maimed

Mind Bleach need now as I will be thinking of both of you. And whoever reads this next is going to be worse off.

We have another thread on this very topic. Try a search for it. Good name, title of a song.