Microwave vs stove - Heating water

[mugs]

Microwave with distilled water and a container that is absolutely free of imperfections.

Let me know how that works for you.

 

[Born2bwire]

Proper sidewall height? Huh...now you've lost me.

I do it the stupid, simple way: Inflate, check pressure with gauge, inflate a bit more, check pressure. If it's reasonably close to what the tire's label says, and if I'm tired of waiting for my slllooowww inflator, then I call it good enough.

Fleabag's just an idiot. The pressure given on the tire is more like that maximum pressure recommended for the tire alone. However, there is a set of tire pressures given to you by the car manufacturer located on a sticker in the door jamb. These pressures take into account the load of the car and give a compromise between handling, comfort, and mileage. Every tire manufacturer and auto manufacturer recommends to use the door jamb sticker due to these considerations. Fleabag recommends to use the sidewall because he's a stubburn ass.

I think you wil find great amusement in following gaidensensai's links.
Haha... just remembered fleabag's conviction that he can't go to the gym because his (I mean his dad's) car does not get high enough gas mileage.

EDIT: Ha, Meghan54 had some choice quotes:

--As for those stupid korean engineers, first off is their primary goal max fuel economy?
I'm pretty sure I know more than them about that.


--You wouldn't find it strange for a woman to make a move on you? If a Woman does that, then she's probably the dominant type, making you her cream puff.


--Yes you may work in a tire shop but that doesn't mean you've necessarily seen more tires than me.
(Speaking directly to allanon1965 who is an ASE Certified Master Automotive Technician since 1990, including having worked 10 years for goodyear, 3 more at firestone and the rest in dealers and independent shops.)


--nice try but being a "computer science major" isn't going to cut it here... You know nothing about cars or computers but you do seem to know about being a troll.


--these same tires can be inflated to 300-600psi with the rim failing before the tire, you should quickly realize that 50psi is not the upper limit for these tires, but more like in the 800psi range.


--before the invention of the differential, all cars were 1 wheel drive.


--My main goal is to have a car that averages 50mpg when commuting to my gym. Once I achieve that goal, I'll be able to start going to the gym again..


--...its (sic) suppose (sic) to improve fuel consumption at idle which is a bit high for my liking.. (on why he wants to remove his power steering pump..)


--You can't lug a modern (last 20 years) fuel injected car.


--Disconnecting and reconnecting the battery will NOT I repeat, will NOT reset a check engine light especially on an OBD-II car.


--I'm probably one of the few who actually remembers the launch of XP
(This was posted 12/09 and he couldn't have been more than 8 years old at the time of XP's release....)

The amusement never ends.

 

[StrangerGuy]

I used to boil water in my microwave all the time.

2 mins heating. Water in drinking glass with a spoon to prevent any superheating.

 

[fleabag]

Fleabag's just an idiot. The pressure given on the tire is more like that maximum pressure recommended for the tire alone. However, there is a set of tire pressures given to you by the car manufacturer located on a sticker in the door jamb. These pressures take into account the load of the car and give a compromise between handling, comfort, and mileage. Every tire manufacturer and auto manufacturer recommends to use the door jamb sticker due to these considerations. Fleabag recommends to use the sidewall because he's a stubburn ass.

I think you wil find great amusement in following gaidensensai's links.
Haha... just remembered fleabag's conviction that he can't go to the gym because his (I mean his dad's) car does not get high enough gas mileage.

EDIT: Ha, Meghan54 had some choice quotes:



The amusement never ends.

It's only amusing to arrogant know-it-all shit heads but to those who actually bothered to do the research and came to the same conclusions as I did would find it refreshing to see someone to disseminate such information to the local peon population. What is said is true and I absolutely stand by what I've said. Now, you smarmy little asswipe, why don't you go ahead and disprove what I said instead of spouting off about how I'm such a dumbass when you're the one that is ignorant about all things concerning cars.


Oh and as for the little quip about me not going to the gym.. There is a reason for that, it's called principles, something you may very well not know what it is. I cannot in good conscious preach people to conserve energy and use it wisely yet on the flipside drive an inefficient vehicle just so that I can go to a place that will allow me to burn off additional calories simply because I have been unable to come to an equilibrium between how much I eat and how much my body needs.. i.e I eat too much.

 

[GoSharks]

Best troll (as a whole) that I've seen in a while. Good job.

One vote for stand alone kettle.

 

[Eli]

Regardless of whether or not it would work at lake tahoe in winter, the bigger problem would be the coolant's toxicity. But even if you had a heat exchanger with a heat exchanger, there would be too much heat loss, not to mention the fact that coolant temperatures rarely get that high in the coolant alone, let alone when you have the loss between two heat exchangers.

Oh and for the asshats that are going to say, "but my car's temperature regularly gets to 230F", I don't give a shit about your crappy corvette or any other such vehicle for that matter because.

Wow...

Can I have some of whatever you have? Cuz it must be good shit.

Most engines thermostats are in the 180 to 200 degree range, which happens to be perfect for brewing coffee and tea.

 

[fleabag]

Wow...

Can I have some of whatever you have? Cuz it must be good shit.

Most engines thermostats are in the 180 to 200 degree range, which happens to be perfect for brewing coffee and tea.

You quoted me correctly, but then responded to my post like I had written something completely different..

"But even if you had a heat exchanger with a heat exchanger, there would be too much heat loss, not to mention the fact that coolant temperatures rarely get that high in the coolant alone, let alone when you have the loss between two heat exchangers."

So let's pick apart what I was saying.

1. Even if you had a heat exchanger, there would be too much heat loss.

What I am saying is that regardless, too much heat would be lost going from one heat exchanger to another, to the point where even if the coolant is at the right temperature, it won't work because by the time the heat gets into what ever you're heating, it will never be at the starting temperature which is 190-200F.

2. not to mention the fact that coolant temperatures rarely get that high in the coolant alone

I don't know about your inefficient pos you drive but most cars only briefly open the thermostat. The reason being is that the radiator does a very good job of removing the heat from the coolant and when you flow air over it, it does its job eleventy billion times better. If your thermostat is open all of the time and your engine can maintain its operating temperature, then your engine is probably on the verge of overheating since there is no extra capacity to dissipate heat if the engine so needs it.

 

[Born2bwire]

It's only amusing to arrogant know-it-all shit heads but to those who actually bothered to do the research and came to the same conclusions as I did would find it refreshing to see someone to disseminate such information to the local peon population. What is said is true and I absolutely stand by what I've said. Now, you smarmy little asswipe, why don't you go ahead and disprove what I said instead of spouting off about how I'm such a dumbass when you're the one that is ignorant about all things concerning cars.


Oh and as for the little quip about me not going to the gym.. There is a reason for that, it's called principles, something you may very well not know what it is. I cannot in good conscious preach people to conserve energy and use it wisely yet on the flipside drive an inefficient vehicle just so that I can go to a place that will allow me to burn off additional calories simply because I have been unable to come to an equilibrium between how much I eat and how much my body needs.. i.e I eat too much.

I could add to the bevy of evidence cited against you already which you always summarily reject due to your driving experiences in the last year or so that you've had your learner's permit. Of course the reason for that is stated obviously in the OP, only people who have done any research or know anything should come to the same conclusion as you. I mean, when mechanics on the forums with decades of experience tell you differently they can't be held as experts because they don't agree. When the tire manufacturers all agree with not using the sidewall pressure that can't be right because you said you should. However, I think that the best place for you to do this would be in the Garage forum.


Oh wait...

You can't post there anymore. I wonder why...

 

[Eli]

You quoted me correctly, but then responded to my post like I had written something completely different..

"But even if you had a heat exchanger with a heat exchanger, there would be too much heat loss, not to mention the fact that coolant temperatures rarely get that high in the coolant alone, let alone when you have the loss between two heat exchangers."

So let's pick apart what I was saying.

1. Even if you had a heat exchanger, there would be too much heat loss.

What I am saying is that regardless, too much heat would be lost going from one heat exchanger to another, to the point where even if the coolant is at the right temperature, it won't work because by the time the heat gets into what ever you're heating, it will never be at the starting temperature which is 190-200F.

2. not to mention the fact that coolant temperatures rarely get that high in the coolant alone

I don't know about your inefficient pos you drive but most cars only briefly open the thermostat. The reason being is that the radiator does a very good job of removing the heat from the coolant and when you flow air over it, it does its job eleventy billion times better. If your thermostat is open all of the time and your engine can maintain its operating temperature, then your engine is probably on the verge of overheating since there is no extra capacity to dissipate heat if the engine so needs it.

Umm...

Let's pick apart what you wrote.

1) Says who? There is no reason why the path to the heat exchanger would have to be excessively leaky. It could be well insulated. Also, there is no need to have two heat exchangers. You would just need to run a T off the heater lines. Afterall, you already have a pump. No need to complicate the system.

You are correct that most cars' cooling systems are very good at dissipating heat. But the thermostat doesn't cycle like you think, of course depending on engine load and such. That's what it's for - it maintains the engine and coolant temperature at the proper level. Remember that it closes when the coolant gets too cold. Under constant load conditions, the thermostat remains partially open, allowing just enough coolant to flow through the radiator to maintain that temperature. It isn't like an on and off switch. It doesn't suddenly spring open, then spring shut when the coolant temp falls to a certain level.

2) I don't even know what you're trying to say here.

I also happen to drive the most fuel efficient production vehicle ever made, so I'm not sure what your tirade regarding that is about. I probably get twice the gas mileage of whatever you drive. On a bad day. Uphill. With a headwind.

 

[SooperDave]

I don't know about your inefficient pos you drive but most cars only briefly open the thermostat.

That right there is sig worthy

 

[DrPizza]

Higher temp doesn't always mean more efficient, but engines definitely have a preferred temperature. My Corolla drives like fuck when it's cold, but it only drives like shit once it's warmed up, so cold is obviously bad. Similarly, if an engine is too hot, fuel will detonate too fast and the engine will begin to knock. Too hot is also bad. We established how this works in that garage thread about the 1000HP car that is hard to drive. It's a really interesting thread

That's very true - cars operate best at the temperatures they're designed to operate. But in the design process, that temperature isn't chosen because it's the best temperature for efficiency - it's the best temperature for the components that the engine is designed from. But, anyone who has ever taken even an introductory course in thermodynamics (which fleabag has not) knows that the maximum possible efficiency increases as the difference between the temperature the fuel burns at & the outside temperature is greater. And, of course, temperatures in an engine are much higher than the coolant temperature, but still, air/fuel ratios, compression, etc., are designed for what the engine is being made out of.

For what it's worth, there are dozens of websites that talk about cooking by using excess heat from the vehicles engine - to reuse some of that heat that is otherwise wasted. Nonetheless, it wouldn't be difficult to design, (but would be unwise - something that hasn't stopped Fleabag before) a way to to achieve boiling, safe water, using excess heat from a car's engine.

 

[Rubycon]

Microwave with distilled water and a container that is absolutely free of imperfections.

Let me know how that works for you.

Don't forget to dump salt in when it's done since you're using distilled water.

Induction is faster because it's using the pot to heat the water and most induction tops have far more than 1.5kW input.

A microwave oven will have higher core losses however it does not have to heat up an element and pot or kettle. (this translates into faster heating and less energy consumption.)

 

[DrPizza]

"Originally Posted by fleabag
I don't know about your inefficient pos you drive but most cars only briefly open the thermostat."

That right there is sig worthy

Give the kid a break. He's right. But only because most cars are only driven briefly. 10 minutes to work. 10 minutes back home... The thermostat is probably only open a total of 12 minutes a day (I'm basing this on a Sable that took 4 minutes to open from turning it on and immediately driving it at 55mph) The other 23 hours & 48 minutes of the day, the thermostat is closed. Hmmm... well, it probably takes a couple minutes after the car is off before it closes. Hmmm... Closed for over 23 hours a day, so technically the blind squirrel has found a nut.

 

[SooperDave]

"Originally Posted by fleabag
I don't know about your inefficient pos you drive but most cars only briefly open the thermostat."




Give the kid a break. He's right. But only because most cars are only driven briefly. 10 minutes to work. 10 minutes back home... The thermostat is probably only open a total of 12 minutes a day (I'm basing this on a Sable that took 4 minutes to open from turning it on and immediately driving it at 55mph) The other 23 hours & 48 minutes of the day, the thermostat is closed. Hmmm... well, it probably takes a couple minutes after the car is off before it closes. Hmmm... Closed for over 23 hours a day, so technically the blind squirrel has found a nut.

He doesn't deserve a break. He is ignorant, hard headed, and tries to to sound knowledgeable when he isn't. Read his explanation as to why a thermostat stays closed. Has nothing to do with what your saying . The blind squirrel has once again talked out his ass and been called on it.

 

[Gibson486]

Fleabag's just an idiot. The pressure given on the tire is more like that maximum pressure recommended for the tire alone. However, there is a set of tire pressures given to you by the car manufacturer located on a sticker in the door jamb. These pressures take into account the load of the car and give a compromise between handling, comfort, and mileage. Every tire manufacturer and auto manufacturer recommends to use the door jamb sticker due to these considerations. Fleabag recommends to use the sidewall because he's a stubburn ass.

I think you wil find great amusement in following gaidensensai's links.
Haha... just remembered fleabag's conviction that he can't go to the gym because his (I mean his dad's) car does not get high enough gas mileage.

EDIT: Ha, Meghan54 had some choice quotes:



The amusement never ends.

WTF....did he really claim tires can take 800 psi?

 

[Gothgar]

kettle meet... er um microwave?

 

[feralkid]

Since the boiling temperature of water decreases with altitude, it's best to do it on the roof. Or up in a tree if available.

 

[fleabag]

Umm...

Let's pick apart what you wrote.

1) Says who? There is no reason why the path to the heat exchanger would have to be excessively leaky. It could be well insulated. Also, there is no need to have two heat exchangers. You would just need to run a T off the heater lines. Afterall, you already have a pump. No need to complicate the system.

:awe: You must be one of those kids who grew up on drinking anti-freeze.

You are correct that most cars' cooling systems are very good at dissipating heat. But the thermostat doesn't cycle like you think, of course depending on engine load and such. That's what it's for - it maintains the engine and coolant temperature at the proper level. Remember that it closes when the coolant gets too cold. Under constant load conditions, the thermostat remains partially open, allowing just enough coolant to flow through the radiator to maintain that temperature. It isn't like an on and off switch. It doesn't suddenly spring open, then spring shut when the coolant temp falls to a certain level.

That's what one would expect if looking at it hypothetically but that doesn't always happen. Want to see it happen before your eyes? Hookup a scangauge to your car and monitor the coolant temp. You can actually see by looking at the temperature numbers when the thermostat opens and closes. What I'm trying to say is, which contradicts what you're saying, is that at a constant load, the engine does not maintain a single temperature, but a temperature range. It does this because it is inherent in its design. Of course, it doesn't do this all the time because heat rejection is dependent on the load of the engine and the ambient temperature. The heat load and the ambient temperature would have to be significantly higher than what I've described before the thermostat could stay partially open all the time. I'm not saying what you've described isn't possible, but it's definitely not going to happen to an idling engine.

 

[Colt45]

troll harder

 

[gaidensensei]

nef-poaching in potentially epic thread on second page.

 

[Lucky777]

purified water + microwave = good, hot, scolding water

 

[fleabag]

That's very true - cars operate best at the temperatures they're designed to operate. But in the design process, that temperature isn't chosen because it's the best temperature for efficiency - it's the best temperature for the components that the engine is designed from. But, anyone who has ever taken even an introductory course in thermodynamics (which fleabag has not) knows that the maximum possible efficiency increases as the difference between the temperature the fuel burns at & the outside temperature is greater. And, of course, temperatures in an engine are much higher than the coolant temperature, but still, air/fuel ratios, compression, etc., are designed for what the engine is being made out of.

For what it's worth, there are dozens of websites that talk about cooking by using excess heat from the vehicles engine - to reuse some of that heat that is otherwise wasted. Nonetheless, it wouldn't be difficult to design, (but would be unwise - something that hasn't stopped Fleabag before) a way to to achieve boiling, safe water, using excess heat from a car's engine.

Who the hell do you think you are? Who are you to say what I know and don't know? I never made such an argument as to say that heat engines don't benefit from a large temperature differential which is the whole basis of the carnot cycle, rankine cycle, etc. etc. Obviously engines don't run very hot because of the temperature limits of components AND because of another factor...NOX. Nitrogen and other molecules gets a little squirrelly at high temperatures and the molecules that are in the air at those high temperatures (1500F+) start to separate and bond with each other, forming new molecules. Consequently, combustion temperatures have to be kept under control in order to prevent this unless they decide to treat the exhaust with urea like in the newer diesel powered cars.

 

[Mr. Pedantic]

Okay okay, how about this:

You DON'T heat up any water, you DON'T create this thread, you DON'T insult anyone who tries to help you, and we all save some time not trying to save yours for you.

 

[PhoKingGuy]

Who the hell do you think you are? Who are you to say what I know and don't know? I never made such an argument as to say that heat engines don't benefit from a large temperature differential which is the whole basis of the carnot cycle, rankine cycle, etc. etc. Obviously engines don't run very hot because of the temperature limits of components AND because of another factor...NOX. Nitrogen and other molecules gets a little squirrelly at high temperatures and the molecules that are in the air at those high temperatures (1500F+) start to separate and bond with each other, forming new molecules. Consequently, combustion temperatures have to be kept under control in order to prevent this unless they decide to treat the exhaust with urea like in the newer diesel powered cars.

Hes a successful physics teacher with a degree and you're a random shit head 17 year old taking CC classes

That's your answer

 

[fleabag]

Hes a successful physics teacher with a degree and you're a random shit head 17 year old taking CC classes

That's your answer

Wrong.