 Q = -k (A/l) (螖T)

• ### What is the formula for heat flow?

• The heat flow is given by the formula: Q = -k (A/l) (螖T) The area is given by 蟺 (0.02 m) 2 = 蟺 0.0004 = 0.0012 m 2. Substituting the values of the heat conductivity coefficient, the area, the length and the difference of temperature between the inside and outside,

• ### What determines the volume flow rate of a heat pipe?

• When the heat flow 桅 is known, the flow pipe temperature tF,鈥痑nd the return-pipe temperature tR鈥痵hould be determined, in order to be able to calculate the volume flow rate Q. The temperatures not only determine the volume flow rate, but also鈥痶he heating surfaces (radiators, calorifiers etc.).

• ### How to calculate the rate of heat flow in a rod?

• The rate of heat flow in a rod of material is proportional to the cross-sectional area of the rod and to the temperature difference between the ends and inversely proportional to the length. Heat flow = – (heat transfer coefficient) * (area of the body) * (variation of the tem-perature) / (length of the material) l: the length of the material.

• ### How do you find the flux of heat flow?

• Find the heat flux. The difference of temperature is 螖T = T i – T O = 16C – 6C = 10C = 283 K. The heat flow is given by the formula: Substituting the values of the heat conductivity coefficient, the area, the length and the difference of temperature between the inside and outside,