12v toaster available?

[Bandos]

Given that Lithium is a better option for LB, how come no one makes a 12v toaster? It must make more sense than running a 240v toaster visa an inverter!

 

[Boldly]

Too many amps. Would need very thick cables.

 

[LittleGreyCat]

I used to have a 12V kettle.
Very slow to boil and managed to flatten a car battery by injudicious use.

 

[Scottish Scrutineer]

Just looked at our 4-slice toaster in the house, 2000w, need a big inverter. This will do us

 

[Brains]

Electric heating (of any type, central heating, underfloor heating, kettles, toasters, ovens etc) always needs a lot of Amps and therefore thick cables.

So not really suitable for motorhomes unless on EHU.

In terms of calorific value compared to weight, the fossil based fuels are far more efficient (LPG, Diesel, Petrol, Rocket fuel, Coal, etc)


Werner von Braun did a lot of experiments of fuel weight/efficiency in the 1930's, it's actually and interesting story.

The thing that limited the V2 rockets was the fuel supply.
Each rocket took 40 tonnes of potatoes processed into Vodka to launch.
They simply could not grow enough potatoes!
They looked at the practicalities of firing the rockets on coal gas, LPG and Petrogel.
But potato vodka was found to have the best bang for the buck.

Electricity was never considered due to the weight/Amps required.
(But it was used in Submarines where the weight was less important)

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[Richard n Ann]

Electric heating (of any type, central heating, underfloor heating, kettles, toasters, ovens etc) always needs a lot of Amps and therefore thick cables.

So not really suitable for motorhomes unless on EHU.

In terms of calorific value compared to weight, the fossil based fuels are far more efficient (LPG, Diesel, Petrol, Rocket fuel, Coal, etc)


Werner von Braun did a lot of experiments of fuel weight/efficiency in the 1930's, it's actually and interesting story.

The thing that limited the V2 rockets was the fuel supply.
Each rocket took 40 tonnes of potatoes processed into Vodka to launch.
They simply could not grow enough potatoes!
They looked at the practicalities of firing the rockets on coal gas, LPG and Petrogel.
But potato vodka was found to have the best bang for the buck.

Electricity was never considered due to the weight/Amps required.
(But it was used in Submarines where the weight was less important)

They didn't have lithium batteries then though
He wasn't that clever was he

 

[Brains]

They didn't have lithium batteries then though
He wasn't that clever was he

He was literally a 'Rocket Scientist' which makes him fairly clever.

Lithium Batteries were invented (in the UK) in the early 1970's and developed into a usable product (in Japan) in the 1990's.
von Braun died in the mid 1970's, so missed the invention.

 

[B+W vanman]

Electric heating (of any type, central heating, underfloor heating, kettles, toasters, ovens etc) always needs a lot of Amps and therefore thick cables.

So not really suitable for motorhomes unless on EHU.

In terms of calorific value compared to weight, the fossil based fuels are far more efficient (LPG, Diesel, Petrol, Rocket fuel, Coal, etc)


Werner von Braun did a lot of experiments of fuel weight/efficiency in the 1930's, it's actually and interesting story.

The thing that limited the V2 rockets was the fuel supply.
Each rocket took 40 tonnes of potatoes processed into Vodka to launch.
They simply could not grow enough potatoes!
They looked at the practicalities of firing the rockets on coal gas, LPG and Petrogel.
But potato vodka was found to have the best bang for the buck.

Electricity was never considered due to the weight/Amps required.
(But it was used in Submarines where the weight was less important)

What does electricity weigh? Please remind me, it seems to have slipped my mind, as does the relationship between amps and EHU?

 

[Richard n Ann]

What does electricity weigh? Please remind me, it seems to have slipped my mind, as does the relationship between amps and EHU?

It has no mass, so it can travel at the speed of light
EHU amps will be on the MCB

 

[B+W vanman]

It has no mass, so it can travel at the speed of light
EHU amps will be on the MCB

I think electricity is the movement of electrons through a conductor, and as electrons have mass, then the first statement cannot be true, even though electricity does travel at a speed very close to that of light.
The second sentence doesn’t make sense to me

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[Richard n Ann]

I think electricity is the movement of electrons through a conductor, and as electrons have mass, then the first statement cannot be true, even though electricity does travel at a speed very close to that of light.
The second sentence doesn’t make sense to me

Oh I don't know then

 

[Brains]

What does electricity weigh? Please remind me, it seems to have slipped my mind, as does the relationship between amps and EHU?

Toaster:
He work on mains electricity.
He no work on 12v electricity.

 

[B+W vanman]

Toaster:
He work on mains electricity.
He no work on 12v electricity.

Your pidgin English reply answers neither of my questions

 

[Jimbohorlicks]

We have a low wattage toaster that works very well on our bog standard 1500w inverter fed by lithium batteries.

 

[pappajohn]

Given that Lithium is a better option for LB, how come no one makes a 12v toaster? It must make more sense than running a 240v toaster visa an inverter!

Why has nobody invented a 12v toaster......because it won't sell.
A 3kw toaster needs 250amps at 12v and it isn't cost efficient.
If it was the ONLY way to toast bread, then it might be viable.
But there are far more efficient ways

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[Guigsy]

To cope with the current, your 12v toaster would have a plug about the size of the ones you use to rapid charge an EV.

 

[Raul]

I think electricity is the movement of electrons through a conductor, and as electrons have mass, then the first statement cannot be true, even though electricity does travel at a speed very close to that of light.
The second sentence doesn’t make sense to me

It's actualy a domino reaction due to the caracteristics of copper atom: one extra free negative charged electron that starts the chain reaction in a close corcuit, the minute you aply voltage/ potential. The electrons gives the energy to the load and return to source to re energise.
The weight is constant trough out the conductor, as the flow is continuous in a circuit, there is never free space. All space is taken by next electron. A bit like a circular hose with water in, and a pump is pushing it arround. Weight of conductor remains constant.

 

[hja]

We dry fry in a fairly heavy frying pan. Works fine and one less gadget to carry.

 

[Richard n Ann]

I read somewhere the latest thinking is that electrons don't actually flow anywhere they just jiggle about

 

[Raul]

I read somewhere the latest thinking is that electrons don't actually flow anywhere they just jiggle about

Almost true, the first free electron knocks the next one out, (if pushed by potential/ voltage) and takes his place. The knocked one out continues to do the same to the next one, until the end of the circuit, if voltage still present. If circuit stays closed, the dance continues, releases the energy at the load( resistor) , then continues its path to the source to be re energised.
Hope that makes sense.

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[B+W vanman]

It's actualy a domino reaction due to the caracteristics of copper atom: one extra free negative charged electron that starts the chain reaction in a close corcuit, the minute you aply voltage/ potential. The electrons gives the energy to the load and return to source to re energise.
The weight is constant trough out the conductor, as the flow is continuous in a circuit, there is never free space. All space is taken by next electron. A bit like a circular hose with water in, and a pump is pushing it arround. Weight of conductor remains constant.

Please explain the mechanism of an electrical arc in a vacuum?

 

[CazPaul]

We’ve had this one many years very low power, works really well without EHU on the inverter.

 

[Raul]

Please explain the mechanism of an electrical arc in a vacuum?

I honestly don't understand the question. Please explain as I'm willing to learn.

 

[B+W vanman]

I honestly don't understand the question. Please explain as I'm willing to learn.

What don’t you understand?

 

[Raul]

The existance of an arc in vacuum.

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[Richard n Ann]

Please explain the mechanism of an electrical arc in a vacuum?

I think it's a conductive plasma channel

 

[B+W vanman]

I think it's a conductive plasma channel

You might well be right, but what is it composed of?

 

[Lenny HB]

Toasting fork & a blowtorch works well.

 

[Raul]

You might well be right, but what is it composed of?

Electro magnetic force?

Since there are no free electrons in vacuum for the current to flow, nor any other particles or molecules to smash into, how is the current traveling to create an arc in vacuum?

 

[Richard n Ann]

You might well be right, but what is it composed of?

Usually field emission or thermionic emission... I think

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