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Transfer Processes 2 Why online? What happens if I want to ask a question during the lecture? 1 2 3 4 5 Why you are doing this course: The chemical engineering profession caters for South Africa’s need for products and energy. Today and into the future, chemical engineers will continue to meet South Africa’s needs using their process knowledge, their knowledge of fundamental science, and their problem-solving skills. You will be developing these attributes in this course. 1 2 3 4 5 OUTCOMES BASED EDUCATION All outcomes, as measured by the criteria, need to be achieved before you can proceed. Example of a criterion: Your ability to use the correct equation to calculate heat transfer rate in a system. If you could not do this in the test, you will need to study more and undergo an additional formative assessment on the criterion. You will need to keep coming back for the formative assessments untill you have mastered all the criteria of the course. You will also need to repeat the test questions (corrective assessments) until you get the right answer. Only once you have mastered all the outcomes (also of the projects) will you qualify to write the next test, and, at the end of the course, to write the exam. 1 2 3 4 5 TEST YES! 1 2 3 4 5 NOT YET LEARNER COMPETENT IN A GIVEN OUTCOME? INFORM LEARNER (Online) FORMATIVE ASSESSMENT (Online) TRY AGAIN GREAT!!! LEARNER COMPETENT IN THE GIVEN OUTCOME? YES! NOT YET FEEDBACK (Online) 1 2 3 4 5 Mark Allocation for Tests Mark obtained in test 0% to 50%, or absent from test 51% to 74% Mark allocated for test after completing formative and corrective assessments 50% 75% 75% to 99% 100% 100% 100%; no need for formative or corrective assessments COURSE OUTLINE • • • • Heat transfer: Conduction, Convection, and Radiation Design of a double pipe heat exchanger Design of a shell and tube heat exchanger Mass transfer: Steady state diffusion, convective diffusion, and diffusion across an interface 1 2 3 4 5 HEAT TRANSFER • What is heat transfer? • End of slides 1 2 3 4 5