Vagueness and the Aftermath - A sporadic diary

[rex008]

A 900w microwave uses about 1500w of power - but like doubleup says, it will use that 900w (of microwave power) very efficiently.

I think some empirical research is required Tom - get experimenting and tell us your findings!

An engine generator is typically around 60% efficient, so combined with the microwave, you end up with about 35% of the combustion energy of the propane going into your soup.

Now, how efficient is lighting a flame under your bowl? A quick google gives a number of 50% efficiency for a gas hob. That's one number off one site and I suspect there are several variables. However, I think that probably answers the question.

I'm going to correct myself - the generator % was for a diesel generator; it's quite hard to get numbers, but a propane generator runs at <30% efficiency from what I can find. Which makes the case for a gas hob even more convincing.

[RED-DOG]

A 900w microwave uses about 1500w of power - but like doubleup says, it will use that 900w (of microwave power) very efficiently.

I think some empirical research is required Tom - get experimenting and tell us your findings!

An engine generator is typically around 60% efficient, so combined with the microwave, you end up with about 35% of the combustion energy of the propane going into your soup.

Now, how efficient is lighting a flame under your bowl? A quick google gives a number of 50% efficiency for a gas hob. That's one number off one site and I suspect there are several variables. However, I think that probably answers the question.

I'm going to correct myself - the generator % was for a diesel generator; it's quite hard to get numbers, but a propane generator runs at <30% efficiency from what I can find. Which makes the case for a gas hob even more convincing.

I wonder.

If we could route the hot exhaust gasses from the generator through the cooking compartment of the microwave, would that redress the balance?

[RED-DOG]

I used to wrap pies in tinfoil and put them on the exhaust manifold of my lorry.

Tintwhistle to Staley Bridge = Hot, but not 'burn your lips off' hot.

[rex008]

A 900w microwave uses about 1500w of power - but like doubleup says, it will use that 900w (of microwave power) very efficiently.

I think some empirical research is required Tom - get experimenting and tell us your findings!

An engine generator is typically around 60% efficient, so combined with the microwave, you end up with about 35% of the combustion energy of the propane going into your soup.

Now, how efficient is lighting a flame under your bowl? A quick google gives a number of 50% efficiency for a gas hob. That's one number off one site and I suspect there are several variables. However, I think that probably answers the question.

I'm going to correct myself - the generator % was for a diesel generator; it's quite hard to get numbers, but a propane generator runs at <30% efficiency from what I can find. Which makes the case for a gas hob even more convincing.

I wonder.

If we could route the hot exhaust gasses from the generator through the cooking compartment of the microwave, would that redress the balance?

Would certainly help, although given the volume of exhaust gases produced, the average residence time in the microwave chamber would be small.

Say it's a 50cc 4stroke engine, running at 3000rpm (pure guesses), that's 50cc*1500 / min = 1.25 litres of gas per second (assuming 100% volumetric efficiency, quite likely). Say microwave is about 25 litres (typical), that means your exhaust passes through the oven in about 20s. Actually, that's not bad, you'd get reasonable heat exchange in that time.

But your soup may taste a bit funny.

[RED-DOG]

A 900w microwave uses about 1500w of power - but like doubleup says, it will use that 900w (of microwave power) very efficiently.

I think some empirical research is required Tom - get experimenting and tell us your findings!

An engine generator is typically around 60% efficient, so combined with the microwave, you end up with about 35% of the combustion energy of the propane going into your soup.

Now, how efficient is lighting a flame under your bowl? A quick google gives a number of 50% efficiency for a gas hob. That's one number off one site and I suspect there are several variables. However, I think that probably answers the question.

I'm going to correct myself - the generator % was for a diesel generator; it's quite hard to get numbers, but a propane generator runs at <30% efficiency from what I can find. Which makes the case for a gas hob even more convincing.

I wonder.

If we could route the hot exhaust gasses from the generator through the cooking compartment of the microwave, would that redress the balance?

Would certainly help, although given the volume of exhaust gases produced, the average residence time in the microwave chamber would be small.

Say it's a 50cc 4stroke engine, running at 3000rpm (pure guesses), that's 50cc*1500 / min = 1.25 litres of gas per second (assuming 100% volumetric efficiency, quite likely). Say microwave is about 25 litres (typical), that means your exhaust passes through the oven in about 20s. Actually, that's not bad, you'd get reasonable heat exchange in that time.

But your soup may taste a bit funny.

Actually....


LPG itself is odourless but a stench agent is added to assist in its detection in case of leakage. Ethyl mercaptan, which possesses a distinctive and unpleasant odor, is the odorant used . Ethyl mercaptan is also selected because it is non-corrosive, has a low sulphur content and possesses a boiling point very near that of LPG.


Well I don't know about all that, but I do know that the exhaust from LPG engines smells like one long continuous burp coming directly from Satan's bottom.

[RED-DOG]

[RED-DOG]

According to the Urban Dictionary..


A 'Devil's Fart' is the last fart before a poop.

Usually the worst smelling after a long line of farts. The Devil's fart lets you know that if you try to fart again, a poop might come out.


"Sean has to rush to the bathroom because he just had his devil's fart".

[millidonk]

shart

a small, unintended defecation that occurs when one relaxes the anal sphincter to fart (blend of "shit" and "fart")

[RED-DOG]

shart

a small, unintended defecation that occurs when one relaxes the anal sphincter to fart (blend of "shit" and "fart")

Shart!

Cheers Milly. I love that word, but hope to use it infrequently.

[RED-DOG]

Pumpernickel - Devil's Fart Bread.





No wonder only a few appreciate pumpernickel bread. By definition and history this bread has not received a good PR. The word pumpernickel came from "pumpen" and "nickel", means fart and devil respectively. It's devil's fart bread. Compared to its white soft French brioche cousin, pumpernickel is the most unrefined bread. Napoleon fed it to his horse named Nicole. An earlier German name for this bread was "krankbrot", literally means sick-bread (difficult to digest hence make one sick).

[technolog]

Just watched this with the kids. Cried at least 4 times.

Click to see full-size image.

Me too. Very poignant in places.

[RED-DOG]

OK. I know things have taken a slightly down-market turn, but just for research purposes, watch this clip and tell me if you laughed or not.

I tried hard not to laugh. (I mean, it's so infantile) but I couldn't help it.

[RED-DOG]

OMG! It's just me. 

[millidonk]

Laughed before the 2nd fart.

[outragous76]

Sadly I laughed and Im not even a "find farts funny" kinda guy