True or False - POLL

[Royal Aquariums]

One of the basic laws of physics is the law of the Conservation of Energy. This simply states that energy cannot be created or destroyed, it can only be transferred from one form to another. So when a 100watt lamp is switched on, 100 watts of electrical energy is converted to 100watts of light and heat; a 50watt lamp produces a total 50 watts of light and heat, and so on.*  However, some lamps are more efficient at producing light than others; this determines how much of that 100 watts is transformed into light, and how much is "wasted" and comes out as heat.

To me this all comes back to the pump/heater question as well, 746Watts= 1 HP if I remember correctly. I'm not saying im 100% right, but after spending multiple years in the electrical trade this is what makes sense to me.

Very interesting thread Darryl 

 

[teebone110]

:?
Okay...

True or False...

Are the things that come to those who wait are the things that are left by those who go there first?

 

[Salty Cracker]

"Some say the glass is half full"
"Some say the glass is half empty"



I say, "either way, there's room for more beer in there"


No way to argue that one.

 

[unibob]

You can't honestly say they make the same heat. We don't live in a perfect world. Efficiency isn't the same, and a pump uses both thermal and kinetic energy, while a heater just uses thermal. 

 

[Royal Aquariums]

It's like comparing apples to oranges. A watt is a measurement of energy used, not a measurement of heat. You can compare watts to watts if you are talking about heater to heater because they are both resistive loads. This is a topic that has more depth behind it than you may think.

My 2 cents

 

[unibob]

What causes more heat a 50w fan or a 50w floor heater? Lol

 

[Darryl_V]

It's as easy as this 1btu = .293 watt-hours

and this http://science.howstuffworks.com/question22.htm

It seems like this can go on forever.....

 

[unibob]

I never said the fan was an Ac unit. I asked what makes more heat.

 

[Darryl_V]

are you joking? 

 

[Neopimp]

I'm confused.....  :drool:

 

[unibob]

Not joking at all, but am done posting.

 

[Darryl_V]

Sorry Jerry but you said a 50watt fan....which implies electric.  I wasn't sure if you were being serious when said you never said it was an ac fan.

The simple answer now is watts and horsepower (assuming we are talking a combustion fan) are measurements of energy.  Heat is also a way to measure energy.....they are all measuring the same thing, energy.

So lets say its a 50watt fan but it's horsepower.  1 watt = 0.00134102209 horsepower so.... a 50w fan is .067horsepower and that is 170.06BTU/hr

The answer is it doesnt matter.  I'm not trying to argumentative or tick anyone off.  If you choose not to believe me that is OK.  Even if you want to debate it that is cool too but please dont take it personal...thats no fun.    We are just having a friendly discussion..

Here is a conversion calculator you can use ...it can do energy and power (click on the left).  The only difference seems to be where the time measurement is...  http://www.anver.com/document/company/Reference%20Guides/power.html

 

[Royal Aquariums]

This could go on forever yes. It was a good discussion.