Chemical Process Analysis 2

This subject has the following teaching availabilities in 2015:

Estimated 170 hours

Prior to enrolling in this subject, students should have completed the following subjects:

AND one of:

AND one of:

Note: CHEN20007 & CHEM10004 may be taken concurrently.

None

None

For the purposes of considering applications for Reasonable Adjustments under the Disability Standards for Education (Cwth 2005) and Students Experiencing Academic Disadvantage Policy, this subject requires all students to actively and safely participate in laboratory activities. Students who feel their disability may impact upon their participation are encouraged to discuss this with the Subject Co-ordinator and the Disability Liaison Unit http://www.services.unimelb.edu.au/disability/

AIMS

This subject extends chemical engineering flowsheet calculations to include energy balances. The concept of conservation of energy is developed as the basis for determining energy flows in and around chemical processing systems, evaluation of enthalpy changes with and without phase change, simplified energy balances for batch, steady-state and adiabatic systems, estimation of heats of reaction, combustion, solution and dilution, energy balances in reacting systems, simultaneous material and energy balances. Performing computer-aided balances in the chemical engineering software package HYSYS is covered, as well as the use of Microsoft Excel in engineering calculations. The subject will include exercises in process optimisation and the solution of ill-defined process problems.

This subject together with CHEN20007 Chemical Process Analysis 1 provides the basis for all the chemical engineering subjects that follow. The calculations introduced in these subjects are the most common type of calculations performed by professional chemical engineers working in all sectors of industry.

INDICATIVE CONTENT

Energy balances: The concepts of energy, work and heat, the units of energy, internal energy, enthalpy, heat capacity, latent heat, evaluation of enthalpy changes. The general energy balance equation, enthalpy balances, system boundaries. Enthalpies of pure components and selection of enthalpy data conditions.

Energy balances and chemical reactions: Heat of reaction, definitions of standard heat of reaction, standard heat of formation, standard heat of combustion. Hess' Law of adding stoichiometric equations. Adiabatic reaction temperature. Heats of solutions and dilution, and use of enthalpy-concentration charts. Simultaneous material and energy balances.

HYSIS: Training in the use of the process simulations package HYSIS. Performing simple material and energy balances using the package.

INTENDED LEARNING OUTCOMES (ILO)

On completion of this subject the student is expected to:

1. Be able to apply knowledge of basic science and engineering fundamentals
2. Be able to communicate effectively, not only with engineers but also with the community at large
3. Be able to undertake problem identification, formulation and solution
4. Be able to use a systems approach to design and operational performance
5. Understand and be able to model energy flows around reacting chemical systems
6. Understand the social, cultural, global and environmental responsibilities of the professional engineer, and the need for sustainable development
7. Understand the principles of sustainable design and development.

• Four assignments; each consisting of no more than 1500 words [50% total, 2 x 10% lab reports (10 – 12 hours each), 1 x 25% assignment (25 – 30 hours) and 1 x 5% group oral presentation, with individual grades (5 minutes presenting time each – expected 5 - 6 hours preparation]. Overall time commitment of 50-60 hours. Intended Learning Outcomes (ILOs) 1 to 7 are addressed in the assignments. Due around week 3, 6, 9, and 12 respectively.

• One written two-hour end-of-semester examination (50%) to be held during the examination period. The examination paper will consist of problems designed to test whether the student has acquired the ability to apply fundamental principles to the solution of problems involving energy balances and simultaneous material and energy balances. The problems set for the exam will be similar in style to those undertaken in the tutorial classes, but will require the student to show that they can extend themselves beyond the level of the simpler tutorial problems. ILOs 1 to 5 are addressed in the examination.

Hurdle requirement: A mark of 40% or more in the end of semester examination is required to pass the subject.

Shallcross D.C., Physical Property Data Book for Engineers and Scientists, 2004, IChemE

Felder, R.M., Rousseau, R.W., Elementary Principles of Chemical Processes, 2005, Wiley

This subject potentially can be taken as a breadth subject component for the following courses:

• Bachelor of Arts
• Bachelor of Commerce
• Bachelor of Music

You should visit learn more about breadth subjects and read the breadth requirements for your degree, and should discuss your choice with your student adviser, before deciding on your subjects.

• Ability to apply knowledge of basic science and engineering fundamentals
• Ability to communicate effectively, not only with engineers but also with the community at large
• Ability to undertake problem identification, formulation and solution
• Ability to use a systems approach to design and operational performance
• Understanding of the social, cultural, global and environmental responsibilities of the professional engineer, and the need for sustainable development
• Understanding of the principles of sustainable design and development.

LEARNING AND TEACHING METHODS

The subject will be delivered through a combination of lectures and tutorials. Students will also complete two experiments and a process modelling project which will reinforce the material covered in lectures.

INDICATIVE KEY LEARNING RESOURCES

Students will have access to lecture notes and lecture slides. The subject LMS site also contains worked solutions for all the tutorial assignments.

Shallcross D.C., Physical Property Data Book for Engineers and Scientists, 2004, IChemE

Felder, R.M., Rousseau, R.W., Elementary Principles of Chemical Processes, 2005, Wiley.

CAREERS / INDUSTRY LINKS

The skills gained in this subject are crucial to the career of a process engineer. They will be important for students wishing to progress to jobs in engineering design offices and in operational roles within a wide range of industries including petrochemicals, food processing, wastewater treatment and pulp and paper manufacture.