Multi_R_Designer Tutorial

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Problem statement: The user searches for heat transfer coefficients recorded at the reactor's wall (h_w) which comprehend values between 300 and 1600 BTU/hr/ft²/R. The user would eventually work with a system presenting a liquid viscosity of ca. 13 lb/ft/hr, a liquid thermal conductivity lower than 0.65 BTU/hr/ft/R and gas densities ranging between 0.1 and 0.3 lb/ft³. An understanding on how the liquid flow rate and liquid viscosity affects the heat transfer capacity is critical for the trickle-bed operation. Finally, using the former specifications and glass beads as the default packing, the user would like to approximate an heat transfer coefficient (h_w) for a liquid mass flow rate of ca. 15000 lb/ft ²/hr and gas mass flow rate of ca. 1000 lb/ft ²/hr. Print the resulting query report and diagrams.

a
1) Determine a general trend for h_w in function of liquid viscosity (Use by default: Glass beads and Liquid mass flow rate of 15000 lb/ft²/hr).

2) Determine a general trend for h_w in function of liquid mass flow rate (Use by default: Glass beads and Liquid viscosity of 13 lb/ft/hr).

3) Evaluate h_w for these specifications: Liquid viscosity = 13 lb/ft/hr; Liquid mass flow rate = 15000 lb/ft²/hr; Liquid thermal conductivity <= 0.65 BTU/hr/ft/R; Gas density: 0.1-0.3 lb/ft³; Gas mass flow rate: 1000 lb/ft ²/hr; Packing type: Glass beads.

4) Print a report for Case problem V.

Multi_R_Designer Tutorial