S
Sharp Point
Just to say howdee first guys n gals ( i'm a very new member) Right many moons ago.... mid nineties! when i did my level 3, we skirted around the heating design part. Now over the years i've worked to a pretty good 'rule of thumb' picked up from the senior engineers at companies that i've been employed by. Now i've a good understanding of most things, but the last bit of the puzzle i've had missing is pump/pipe sizing. But for the last month or so in between running a business, being daddy to three demanding sproglings, doing up an old vw, going snowboarding....etc i've armed myself with a few books. Fluid dynamics ( woooooah, over my head) domestic heating design guide (cibse) nvq 3 textbook ( recent one) but the easiest one i've been able to work with is a poxy 8 page pdf from the ' copper development association'.
Now the pdf is set for old school 11 degree drop, now can i use the same formulae but for new 20 degree drop systems?
heat emitter size in watts / ( 20 x 4187) kg/s specific heat of water being 4187 joules/kg
The 20 being the new 11 degree design drop.
If so, i'm really pleased. Because that means i've just taught myself( fingers crossed) the dark art of pipe sizing thus matching system to pump design curves.
Please don't shoot me down to quickly chaps, ive had my head in the books for hours and hours....
Now the pdf is set for old school 11 degree drop, now can i use the same formulae but for new 20 degree drop systems?
heat emitter size in watts / ( 20 x 4187) kg/s specific heat of water being 4187 joules/kg
The 20 being the new 11 degree design drop.
If so, i'm really pleased. Because that means i've just taught myself( fingers crossed) the dark art of pipe sizing thus matching system to pump design curves.
Please don't shoot me down to quickly chaps, ive had my head in the books for hours and hours....