Heat transfer problems in the coiled tubes of stirred-tank reactors
Thread Content
I now want to use coiled tubes for heat exchange in the reactor; how can I determine the heat transfer coefficient K? For example, right now I have set the diameter of the mixing tank to D=1m, and the liquid inside the tank is water; then isn’t the Reynolds number Re outside the pipe calculated using Re=D^2*ρN/μ? , if so. If I use the parameters for water, with ρ=1000, μ=0.001, and N set to 100, then re will be 100000000. Using the formula from https://wenku.baidu.com/view/ab84ff6003768e9951e79b89680203d8ce2f6acd.html, the resulting heat transfer coefficient is extremely high; but isn’t the heat transfer in coiled tubes usually low? Is there anyone expert who can answer this?
The stainless steel finned internal cooler used for heat exchange in the stirred-tank reactor provides excellent cooling performance