Introduction to CHEMCAD
Process Simulation Software
Agung Ari Wibowo, S.T, M.Sc
Dept. of Chemical Engineering
Politeknik Negeri Malang
What is Process Simulation Software
Process simulation software
describes processes in flow diagrams where unit
operations are positioned and connected by product or
educt streams. The software has to solve the mass and
energy balance to find a stable operating point. The goal of
a process simulation is to find optimal conditions for an
examined process.
Software
Advantage
the speed and accuracy of process simulation
begins to save tremendous time and money.
And not only for design changes
“Working smart is harder than
working hard. It’s just less
visible, and we care too much
about what others see.”
CHEMICAL PROCESS
Raw Material Processing
Main Process/ Reactor
Purification
Chemical Process Equipments
Fluid Transport
Heat Exchanger
Reactor
Purification
» Pump (liquid)
» Double Pipe
» CSTR
» Distillation Column
» Compressor
(Gas/Vapor)
» Shell and Tube
» PFR
» Absorption Column
» Expander
(Gas/Vapor)
» Plate and Frame
» Extraction Column
» Decanter
» Flash
1.
CHEMCAD
Supercharges an engineer’s efficiency when
facing the toughest chemical process models or
addressing day-to-day challenges
Course Material
» Basic Simulation of Chemical Process Support
Equipment
» Basic Simulation of Reactor
» Basic Simulation of Distillation Column
» Sensitivity Analysis
» Chemical Plant Simulation
BIG
CONCEPT
Using sensitivity analysis to improve process
quality
We work here
List of
Equipment
Notification pane
Getting Started with CHEMCAD
Selecting Component
Getting Started with CHEMCAD
To Change
Thermodynamics Model
Getting Started with CHEMCAD
Thermodynamics Model
Selection Guide
Getting Started with CHEMCAD
Getting Started with CHEMCAD
CHEMCAD dapat melakukan perhitungan flash berikut:
• P-T
P : Tekanan
•Vf-P
T : Temperatur
•Vf-T
Vf : Vapor Fraction
Jika kita memasukkan T, P dan Vf akan terjadi Error (Consistency Error), karena tidak seseai
dengan Degree of Freedom dari Hukum Gibbs
2.
FLUID TRANSPORT
EQUIPMENT
Although liquids particularly can be transported by operators
carrying buckets, the usual mode of transport of fluids is through
pipelines with pumps, blowers, compressors, or ejectors
Pump for liquid fluid
Compressor
Expander
3.
Heat Exchanger
An Equipment being used for heating or cooling
the processed material.
Heat Exchanger type 1
Feed, 5 kmol/h water and
ethanol, T = 150 C, P= 101.3
kPa
Heat Exchanger type 2
Heating Medium, 500 kg/h
water, T = 150 C, P= 101.3 kPa
Heat Exchanger
4.
FLASH SEPARATOR
A vapor–liquid separator may also be referred to as a flash drum,
breakpot, knock-out drum or knock-out pot, compressor suction
drum or compressor inlet drum
Flash Separator : Vapor - Liquid
Feed, 5 kmol/h water and
ethanol, T = 150 C, Vf= 0.5
Flash Separator : VLLE / LLE
immiscible
Feed, 5 kmol/h water and
benzene, T = 150 C, Vf= 0.5
Flash Separator : VLLE / LLE
Feed, 5 kmol/h water and
benzene, T = 150 C, Vf= 0.5
Flash Separator : VLLE / LLE
Stream No.
Flow rates in kg/h
Water
Benzene
1
2
3
4
90.075 42.5117 42.7295 4.8337
390.57 206.2737 0.682 183.6143
Thank You