john37
02/10/2006, 07:08 AM
dont really sure on how to word the question so here is an example.
Tunze 6100s use about 45W but are completely submerged so the heat transfer is 100% into the water but a sequence dart pump uses 160W but since it's an external pump some(a lot?) heat is dissapated into the air. My question is, which actually transfers more heat into the water? When i look at it the surface area of the water touching the heated pump in a dart is less than a tunze and considering the heat loss into the air does the tunze really cause less heat transfer?
I ask because if the tunze causes a significantly larger heat transfer, then it's useless because i would in turn need a chiller which causes an even higher amp/wattage usage.
is there some sort of formula to calculate this?
sorry i just woke up and couldnt fall back asleep. Fish are making me crazy, I'm obsessed.:rollface:
Tunze 6100s use about 45W but are completely submerged so the heat transfer is 100% into the water but a sequence dart pump uses 160W but since it's an external pump some(a lot?) heat is dissapated into the air. My question is, which actually transfers more heat into the water? When i look at it the surface area of the water touching the heated pump in a dart is less than a tunze and considering the heat loss into the air does the tunze really cause less heat transfer?
I ask because if the tunze causes a significantly larger heat transfer, then it's useless because i would in turn need a chiller which causes an even higher amp/wattage usage.
is there some sort of formula to calculate this?
sorry i just woke up and couldnt fall back asleep. Fish are making me crazy, I'm obsessed.:rollface: