January 25, 2010
Many Hot-water Heating Systems Have A Reservoir Tank Connected Directly To The Pipeline, So As To Allow For Ex
expansion* when the water becomes hot. The heating system of a house has 76 m of copper pipe whose inside radius is 9. 5×10-3 m. When the water and pipe are heated from 24 to 78°C, what must be the minimum volume of the reservoir tank to hold the overflow of water?
please help!
Filed under Heating Systems by on Jan 25th, 2010. 
Categories
Filed under Heating Systems by .
Comments on Many Hot-water Heating Systems Have A Reservoir Tank Connected Directly To The Pipeline, So As To Allow For Ex
at atm pressure, volume of water V(at 24) = pi r^2 L
P V(24) = n R [273+24]
P V(78) = n R [273+78]
V(78) = V(24) [351/297]
Increase in Volume on heating = delta V = V(78) -V1(24)
delta V = pi r^2 L [351 - 297]/297
storage needed = delta V = 3. 14*(9. 5*10^-3)^2 *76 [54]/297
storage tank = 3. 916*10^-3 (meter)^3
storage tank = 3. 916 Litre
(1m^3 = 1000 litre)
if storage tank is not there 76 m pipe may burst.