Mass flow rate through a radiator

hi_im_fil

I know this is very general but I need a bit of information for a college project. How much water would flow through a typical radiator in a house per hour? I know it varies depending on the size of the house, size of the radiator etc but I just need a baseline figure to work with.

Any info is appreciated

Buford T Justice

Variables are:

Size of Rad
Speed of Pump
What stage the lock shields are set to.

Impossible to give a figure because of the above.

hi_im_fil

Any idea of an upper and lower value? A ballpark figure even

jeepers101

Does it need to accurate if its just for a project. If I told you 100l/hr would anyone be any the wiser?

hi_im_fil

I have been looking for information and I have only found two figures, 100 litres per hour and 500 litres per hour and I want to see if these are any way accurate.

I will be doing an analysis on a valve with different mass flow rates going through it but I need an initial mass flow rate to do a calculation to set up my analysis.

Outkast_IRE

have you tried contacting any of the rad manufacturers their enginners and technical team would have this sort of data handy.

Pete67

If you know the rated output of the radiator in kW, then you can easily calculate the mass flowrate required for any delta T. The rated output can be got from manufacturers data sheets.

Hint: specific heat capacity of water is 4.186 kJ/kg/K

So 1kW output needs 0.0239 kg/sec or 86kg/hr if the temp drop is 10C, and half this if it's 20C.

Sparkpea

swossssssssssssssssssssh


check out all them technical figures and calculations :-)