it measured 60 cm, my delta L/Lo is 2.5x10^-6 m the change in temperature was 73 i just dont know how to plot them in the formula, E (F/S)/(ΔL / Lo)for example with that values, what is S? and how i calculate S? totally confused.
I'm just another homeowner, but I do have some commentsI don't agree with the previous answer that no heat vent is needed in that room and that if you just let the heat rise and paint the house dark that will be good enoughI live in central MN, well north of the Twin Cities, same climate as youmy house is very dark blue, and there is no heat vent in my computer room, and although the room is tolerable in winter, it is rather chillywe are running a heat vent into this roomI live in an old farm house, which is MUCH better designed for heat to move around than in a more modern home, so I think I have best case results, and passive heating from the rest of the house is not enoughthe computer room that's chilly does have modern, double paned windows, btw, and the insulation was upgraded maybe 25 years agoMy basement is about 40 degrees in the winter (old farmhouse, remember) and my ducts are uninsulated, because I do want some heat going down there to prevent frozen pipes, and the furnace ducts still deliver plenty of heat to the rest of the house, and I have off peak electric heat, which delivers cooler air than natural gas, propane, or an oil burnerIs the heat loss from ONE insulated duct to ONE bedroom really going to cost you that much with a high efficiency furnace?
F/S is the tension, Force divided by areaThe area (of the cross section) is easy to calculate, given the shape and dimensions of the cross section.
