Belajar Ilmu Teknik Kimia Lebih Dekat dan Mudah
Separation operations achieve their objective by the creation of two or more coexisting zones which differ in temperature, pressure, composition, and/or phase state. Each molecular species in the mixture to be separated reacts in a unique way to differing environments Continue reading General Principles of Continuous Distillation Operations
The basic problems of the sciences and engineering fall broadly into three categories: 1. Steady state problems In such problems the configuration of the system is to be determined. This solution does not change with time but continues indefinitely in Continue reading Basic Problems and Treatment of Chemical Engineering Mathematic
Persamaan diferensial muncul pada permasalahan-permasalahan dalam bidang ilmu pengetahuan dan teknologi yang membahas tentang hubungan dinamis antara suatu variabel dengan varibel lainnya, seperti permasalahan pada rangkaian listrik, lendutan balok, teori getaran, dan sebagainya. Persamaan diferensial dibedakan menjadi dua kelompok, yaitu Continue reading Persamaan Diferensial dan Macamnya
In a special case of mass transfer, as in the evaporation of a pure liquid in a diffusion cell or the absorption of a pure gas in an agitated vessel, transfer of material is onedimensional and we can neglect the Continue reading Approximate Solutions of the Diffusion Equation: Film Model
The velocity distribution near the entrance region of a circular pipe is generally uniform. As a result, the energy equation for this region can be written as follows: Equation 1: Partial differential equations akin to Equation 1 are commonly known Continue reading Heat Transfer Near the Entrance Region at Constant Wall Temperature (Circular Pipe)
In a similar way, the dimensionless average diffusional flux over the entire length of a pipe with uniform velocity distribution is given by the following equation: Equation 1: Under normal operating conditions, gas/liquid in contact with sieve-tray columns is usually Continue reading Mass Transfer Near the Entrance Region at Constant Wall Concentration (Circular Pipe)
The solution of Graetz’s problem for mass transfer under constant surface concentration conditions can be obtained in a similar manner as the corresponding solution for heat transfer. The dimensionless average diffusional flux over the length of a pipe is given Continue reading Mass Transfer at Constant Wall Concentration (Laminar Flow)
The rates of heat transfer in fluid media are usually described in terms of Nusselt numbers, as defined by the following equation: Equation 1: Where h is the heat transfer coefficient [W.K–1.m–2], L is the characteristic length of the heat Continue reading Nusselt Number (Physical Interpretation)