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Chemical Engg Thermodyn

by: Rosalyn Williamson

Chemical Engg Thermodyn CH EN 3853

Rosalyn Williamson
The U
GPA 3.87

Geoffrey Silcox

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Geoffrey Silcox
Class Notes
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This 7 page Class Notes was uploaded by Rosalyn Williamson on Monday October 26, 2015. The Class Notes belongs to CH EN 3853 at University of Utah taught by Geoffrey Silcox in Fall. Since its upload, it has received 56 views. For similar materials see /class/229969/ch-en-3853-university-of-utah in Chemical Engineering at University of Utah.


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Date Created: 10/26/15
Syllabus for Chemical Engineering 3853 Chemical Engineering Thermodynamics University of Utah 8 Fall 200 Professor Geoff Silcox Department of Chemical Engineering Phone 581 8820 FAX 5859291 Of ce 32900 MEB email geoff AT cheutahedu web site wwwcheutahedugeoff3853 Of ce hours When available or by appointment Teaching assistant Paula Buitrago Phone 5818431 Of ce EMRL 214 email pbuitrago AT utahedu Of ce hours TBA Meetings M W F 104511 35 WEB 112 Study Session TBA Prerequisites CH EN 2300 Thermodynamics I and CH EN 2800 Fundamentals of Process Engineering major standing Co requisite CHEM 3060 Physical Chemistry I Required text J R Elliott and C T Lira Introductory Chemical Engineering Thermodynamics Prentice Hall PTR 1999 ISBN 0130113867 Suggested References The Foundation Coalition httpwwwfoundationcoalitionorg has developed a concise summary of the conservation and accounting framework that is central to chemical engineering and thermodynamics Noel de Nevers Physical and Chemical Equilibrium for Chemical Engineers John V ley 2002 ISBN 0471071706 H C Van Ness and M M Abbott Schaum39s Outline of Thermodynamics With Chemical Applications Schaum39s Outline Series McGrawHill 1989 ISBN 0070000425 Course Content and Objectives Thermodynamics is the study of energy and its transformations Chemical Engineering 3853 focus on physical and chemical equilibrium with applications in the chemical process industries The course is divided into four sections 1 Energy and Entropy Balances 2 Generalized Analysis of Fluid Properties 3 Fluid Phase Equilibria in Mixtures and 4 Energy Balances and Equilibrium in Reacting Systems Learning objectives for each section follow Many of these are directly quoted from the website of the author Prof Carl T Lira httpwwwegrmsueduirathermtxthtm General Objectives By the end of this course you will be able to Practice effective approaches to solving homework problems and presenting their solutions including the use of tools like Excel Polymath and MATLAB Work effectively in a team and as an individual to solve problems and to produce a well written technically clear report I Objectives for Unit 1 Energy and Entropy Balances By the end of this section you will be able to Explain what is meant by internal energy from a molecular viewpoint Explain why entropy increases when different species mix at constant temperature and pressure Explain the connection between fluid ow in pipes lost work and the Fanning friction factor MA A Objectives for Unit 2 Generalized Analysis of Fluid Properties By the end of this section you will be able to Find the relationship between any thermodynamic property for example U H S A G and measurable properties for example T P V p Cp CV Apply simple equations of state for example the virial and PengRobinson equations to calculate properties for example enthalpy and entropy of pure uids using departure functions Explain why the Gibbs energy is the key property that characterizes phase equilibria Describe the relationship between the Gibbs departure function and the fugacity Calculate the fugacity coef cient ofa vapor using the virial correlation Calculate the fugacity coef cient ofa vapor or liquid given an expression for a cubic equation of state and the parameter values Z A B and decide which root among multiple roots is most stable I A00 001 Objectives for Unit 3 Fluid Phase Equilibria in Mixtures By the end of this section you will be able to List the properties that are always equal in two phases at phase equilibrium Calculate emissions for lling or charging purging heating or depressurizing a tank containing a VOC or mixture 3 Choose between bubble dew flash calculations from a problem statement NA A Properly execute a bubble or dew calculation given the overall composition and the Antoine parameters Calculate the fugacity coef cient ofa component in a mixture using the virial equation of state 6 Write the criteria for VL phase equilibria using an EOS for both phases and rearrange the expression to give the VLE K ratio in terms of variables 7 Perform bubble or dew calculations using the modi ed Raoult s law using an activity coef cient model with given parameter values and activity coef cient expressions 8 Fit the van Laar equation to the results ofa single VLE measurement 9 Write one or two statements describing how the van Laar and Scatchard Hildebrand models are similar 10 Describe azeotropic behavior 11Write a statement describing the concept of local composition 12Write a statement describing the importance of shape in Wilson39s equation UNIQUAC UNIFAC 13 Describe what is meant by the 39combinatorial term39 and the 39residual term39 in UNIQUAC and UNIFAC 14 ldentify whether an azeotropic phase diagram has the correct appearance 15Write the equilibria criteria using fugacities and activities 16 Explain and use a G vs x plot to identify whether LLE exists in a binary and the compositions of coexisting phases if LLE does exist 17 Explain and use a AGmix vs x plot to identify whether LLE exists in a binary and the compositions of coexisting phases if LLE does exist 18 Use activity coef cients to calculate LLE Kratios 19 Read and plot ternary data on rectangular coordinates 20 Calculate LLVE for systems with liquid components that are totally immiscible U39l Objectives for Unit 4 Energy Balances and Equilibrium in Reacting Systems By the end of this section you will be able to 1 Write the mole balances using 2 for a given feed properly using the stoichiometric numbers for single and multiple reactions 2 Write the mole fractions using 2 for single and multiple reactions Solve for the equilibrium 2 and the equilibrium mole fractions for a given Ka and P Properly include inerts in chemical equilibrium calculations Explain and apply LeChatelier s principle Find AG 293 and AH 293 for a given reaction Find AG T and KaT using the shortcut van t Hoff equation Set up the energy balance for a given feed and equilibrium conversion testing for closure or solving for Q 9 Estimate KP using the LewisRandall rule and apply it to equilibrium calculations 10 Calculate outlet temperatures and equilibrium concentrations for adiabatic reactions A oououous 11Calculate equilibrium concentrations for processes involving multiple reactions 12 Extend the technique ofdirect minimization of Gibbs energy to include pressure effects Grading Points for homework the project and exams are assigned as follows Two onehour exams 25 each One final exam 30 Project 10 Homework 10 Final grades will be based on the following table The table represents grade guarantees I reserve the right to lower the scale and to reevaluate the scores of students who just miss a grade The high score in the class will be used to scale all other scores For example if the high score is 95 all scores will be divided by 095 Percentage Grade 95100 A 9095 A 8590 B 8085 B 7580 B 7075 C 6570 C 6065 C 5060 D lt 50 E Students with Disabilities The University of Utah seeks to provide equal access to its programs services and activities for people with disabilities If you will need accommodations in the class reasonable prior notice needs to be given to the Center for Disability Services CDS httpdisabilityutahedu 162 Olpin Union Building 5815020 CDS will work with you and the instructor to make arrangements for accommodations All written information in this course can be made available in alternative format with prior noti cation to the Center for Disability Services Examinations All examinations are comprehensive This means that you will have multiple chances to show me that you have learned the material Useful tips on taking tests and information on reducing test anxiety are found at httpdisabilityutahedutesthtm All examinations are open book notes and homework To receive full credit for your solutions you must write out all equations that you use and you must state all values substituted in those equations You must show all of your work to receive credit No makeup exams will be given except in exceptional circumstances lfyou must miss an exam please notify me before the exam Homework Solutions to the homework are due Fridays before 1600 Homework turned in afterthis time will be awarded a maximum of 50 No homework will be accepted after the solutions have been posted The neatness organization and completeness ofyour homework are important To receive full credit for your solutions you must write out all equations that you use and you must state all values substituted in those equations You must show all of your work to receive credit The solutions will be posted on the web I encourage you to work with other students on the homework You should be sure that you can setup solve and understand all of the problems Using Email I will be using the email system provided by the U to send you messages Please be sure that you check your utahedu mail Schedule for Chemical Engineering 3853 Heat Transfer Fall 2008 Prof Geoff Silcox University of Utah corresponding states the virial cubic pure Clapeyron equation shortcut estimation of saturation properties effect of P on Gibbs criteria equilibrium of VLE calculations Raoult s law Emission Fugacity and chemical potential law MRL Comparison with EOS


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