Question

A jacketed 2.5-m-diameter agitated vessel without baffles is being used to heat a liquid which is at 350 K. The agitator is 0.75 m in diameter and is a paddle type rotating at 100 rpm. Hot water is in the heating jacket. The wall surface temperature is constant at 400K. The liquid has the following bulk physical properties: $\rho = 981 \text{ kg/m}^3$, $C_p = 2800 \text{ J/kg K}$, $k = 0.183 \text{ W/m K}$, and $\mu = 1.25 \text{ Pa s}$ at 350 K and 0.064 Pa s at 400 K. Calculate the heat-transfer coefficient to the wall of the jacket. What is roughness factor and does the roughness factor affect the mass transfer, heat transfer and fluid flow in the equipment?

          A jacketed 2.5-m-diameter agitated vessel without baffles is being used to heat a liquid which is at 350 K. The agitator is 0.75 m in diameter and is a paddle type rotating at 100 rpm. Hot water is in the heating jacket. The wall surface temperature is constant at 400K. The liquid has the following bulk physical properties: $\rho = 981 \text{ kg/m}^3$, $C_p = 2800 \text{ J/kg K}$, $k = 0.183 \text{ W/m K}$, and $\mu = 1.25 \text{ Pa s}$ at 350 K and 0.064 Pa s at 400 K. Calculate the heat-transfer coefficient to the wall of the jacket.

What is roughness factor and does the roughness factor affect the mass transfer, heat transfer and fluid flow in the equipment?

A jacketed 2.5-m-diameter agitated vessel without baffles is being used to heat a liquid which is at 350 K. The agitator is 0.75 m in diameter and is a paddle type rotating at 100 rpm. Hot water is in the heating jacket. The wall surface temperature is constant at 400K. The liquid has the following bulk physical properties: ρ = 981 kg/m^3, Cp = 2800 J/kg K, k = 0.183 W/m K, and μ = 1.25 Pa s at 350 K and 0.064 Pa s at 400 K. Calculate the heat-transfer coefficient to the wall of the jacket.

What is roughness factor and does the roughness factor affect the mass transfer, heat transfer and fluid flow in the equipment?

Added by Brandy R.

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