2017-18 Academic Catalog

Department of Mechanical Engineering

Department Head: Dr. Pedro Mago
Major Advisor: Ms. Tammy Abbott
Office: 210 Carpenter Engineering Building

Mechanical Engineering is the application of science and mathematics to the design, development, and operation of mechanical and energy systems. Examples of these systems include mechanical devices ranging from simple linkages and gears to complex automated robots and energy systems ranging from basic water pumps to high-performance jet engines. Since the range of applications is so broad, virtually all industries employ Mechanical Engineers in various capacities. Some of the major areas of employment are the manufacturing, chemical, paper, aerospace, utility, construction, transportation, petroleum, electronics, and computer industries.

The mission of the Department of Mechanical Engineering is to educate students in fundamental engineering principles, thus enabling the understanding of existing and next generation technologies relevant to research and engineering practice. All graduates will receive a broad education that will enable them to be successful in industry or academia, the profession and the community.

To carry out this mission, the Mechanical Engineering faculty, with input from other constituencies, has established the following objectives that describe the expected accomplishments of graduates during the first few years following graduation:

  1. Apply fundamental engineering knowledge, industry perspective and research skills to become experts or leaders within a chosen engineering career path.
  2. Exhibit life-long learning and develop personal and teamwork skills in order to effectively solve real-life problems and clearly communicate their results.
  3. Practice ethical responsibility and accountability in professional activities and actively participate in professional development.
     

The Mechanical Engineering curriculum is designed to meet these objectives. The basic courses in mechanics, materials, thermodynamics, electrical engineering systems, and dynamics prepare the student for the comprehensive design courses in the senior year culminating in major design experiences in energy systems and in mechanical systems. Throughout the curriculum there is significant use of the computer to solve realistic engineering problems. All entering ME juniors are required to have a portable computer that they will use interactively in the classroom. The ME laboratory sequence stresses the planning, design, and operation of experiments. The curriculum also places a strong emphasis on technical communications. Senior technical electives allow the student to study particular areas of interest.

The Mechanical Engineering Program is accredited by the Engineering Accreditation Commission of ABET, http://www.abet.org.

General Education Requirements

English Composition
EN 1103English Composition I3
or EN 1163 Accelerated Composition I
EN 1113English Composition II 13
or EN 1173 Accelerated Composition II
Mathematics
See Major Core
Science
See Major Core
Humanities
See General Education courses6
Fine Arts
See General Education courses3
Social/Behavioral Sciences
See General Education courses6
Major Core
Math and Basic Science
MA 1713Calculus I 13
MA 1723Calculus II 13
MA 2733Calculus III 13
MA 2743Calculus IV 13
MA 3113Introduction to Linear Algebra 13
MA 3253Differential Equations I 13
CH 1213Chemistry I3
CH 1211Investigations in Chemistry I1
CH 1223Chemistry II 13
PH 2213Physics I 13
PH 2223Physics II 13
PH 2233Physics III3
Engineering Topics
IE 3913Engineering Economy I3
EM 2413Engineering Mechanics I 13
EM 2433Engineering Mechanics II 13
EM 3313Fluid Mechanics 13
EM 3213Mechanics of Materials 13
ECE 3413Introduction to Electronic Circuits 13
ME 1111Introduction to Mechanical Engineering1
ME 2133Modeling and Manufacturing3
ME 3103Experimental Measurements and Techniques3
ME 3113Engineering Analysis 13
ME 3313Heat Transfer3
ME 3403Materials for Mechanical Engineering Design3
ME 3423Mechanics of Machinery3
ME 3513Thermodynamics I 13
ME 3523Thermodynamics II3
ME 3613System Dynamics3
ME 4111Professional Development Seminar1
ME 4301Thermo-Fluids Laboratory1
ME 4333Energy Systems Design3
ME 4401Solid Mechanics Laboratory1
ME 4403Machine Design3
ME 4443Mechanical Systems Design3
ME 4643Introduction to Vibrations and Controls3
Technical Elective 26
Oral Communication Requirement
Satisfied by successful completion of ME 2133, ME 4443, and GE 3513
Writing Requirement
GE 3513Technical Writing3
Computer Literacy
CSE 1233Computer Programming with C (or equivalent programming course)3
Total Hours128
1

A grade of C or better must be made in these courses.

2

A list of Mechanical Engineering technical electives is maintained by the Mechanical Engineering Department. Substitutions may be approved by writing the ME Dept.

Courses

ME 1111 Introduction to Mechanical Engineering: 1 hour.

(Prerequisite: Freshman standing or consent of instructor). One hour lecture. Introduction to the mechanical engineering curriculum, the profession, and career opportunities. Historical perspective; the support role of the department, college, university; student roles and responsibilities

ME 2133 Modeling and Manufacturing: 3 hours.

(Prerequisite: ME 1111 and Sophomore standing). Two hours lecture. Three hours laboratory. Elementary drafting and design techniques using solid modeling software: introduction to manufacturing options

ME 2990 Special Topics in Mechanical Engineering: 1-9 hours.

Credit and title to be arranged. This course is to be used on a limited basis to offer developing subject matter areas not covered in existing courses. (Courses limited to two offerings under one title within two academic years)

ME 3103 Experimental Measurements and Techniques: 3 hours.

(Co-requisites: ME 3523 and GE 3513). Two hours lecture. Two hours laboratory. Measurements: accuracy/usefulness; reporting; uncertainly analysis and design of experiments; data acquisition; measurement of length, area, volume, temperature, pressure, flow, strain, and force

ME 3113 Engineering Analysis: 3 hours.

(Prerequisites: CSE 1233,Grade of C or better in MA 3113, MA 3253 and PH 2213) Three hours lecture. Analysis of engineering problems requiring the use of engineering fundamentals and mathematical techniques of analysis with computer applications

ME 3163 Introduction to Mechanical Design with Finite Element Analysis: 3 hours.

Three hours lecture. Instruction in stresses, strains, displacements, static failure with finite element analysis of major strength of materials problems

ME 3313 Heat Transfer: 3 hours.

(Prerequisites:Grade of C or better in EM 3313, MA 3253,and ME 3533 or ME 3513). Three hours lecture. A study of the fundamental principles of heat transfer; processes; steady and transient conduction in solids; thermal radiation; and convective processes

ME 3403 Materials for Mechanical Engineering Design: 3 hours.

(Prerequisites: Grade of C or better in CH 1223 and EM 2413, corequisite EM 3213 ). Three hours lecture. Behavior, testing and processing of engineering materials. Emphasis is placed on the inter- relation of design with processing and material selection

ME 3423 Mechanics of Machinery: 3 hours.

(Prerequisites:Grade of C or better in EM 2433 and ME 3113). Three hours lecture. Analysis of mechanisms for motions, velocities, accelerations and forces

ME 3513 Thermodynamics I: 3 hours.

(Prerequisites: Grade of C or better in CH 1213, CH 1211, MA 2733, and PH 2213). Three hours lecture. Definitions; properties of a pure substance; work and heat; First and Second Laws; entropy; ideal gases

ME 3523 Thermodynamics II: 3 hours.

(Prerequisite: Grade of C or better in ME 3513 and CH 1223). Three hours lecture. Mixtures of ideal gases; irreversibility and availability; vapor power cycles; gas power cycles; refrigeration cycles; flow through nozzles and turbine blades; combustion; chemical equilibrium

ME 3613 System Dynamics: 3 hours.

(Prerequisites: EM 2433, ME 3113, and EM 3313). Three hours lecture. Mathematical description of mechanical, electrical, hydraulic and pneumatic systems. Transient and frequency response of linear systems

ME 4000 Directed Individual Study in Mechanical Engineering: 1-6 hours.

Hours and credits to be arranged

ME 4111 Professional Development Seminar: 1 hour.

(Prerequisite: Senior standing or consent of instructor). One hour lecture. Preparation for career readiness including professional communication, career outcomes, professional/ethical responsibility, and the impact of engineering solutions in global, economic, environmental, and societal contexts

ME 4113 Material Selection in Design: 3 hours.

(Prerequisite: ME 3403 or equivalent). Three hours lecture. Principles of materials selection related to mechanical design requirements

ME 4123 Failure of Engineering Materials: 3 hours.

(Prerequisite:EM 3213 ) Three hours lecture. The failure of constituent materials using real -world case studies is the focus. Experimental and analytical techniques for failure analysis and prevention are covered.(Same as CE 4323/6323)

ME 4133 Mechanical Metallurgy: 3 hours.

(Prerequisite:ME 3403 or equivalent). Three hours lecture. The mechanical and metallurgical fundamentals of metals are discussed. Mechanical fundamentals cover the stress and strain relationships and metallurgical fundamentals cover the microstructure

ME 4193 Automotive Engineering: 3 hours.

Three hours lecture. Fundamentals of automotive engineering, including power units, mechanical systems, electrical system and industrial and systems engineering aspects. (Same as CHE/ECE/IE 4193/6193)

ME 4223 Mechanical Systems Analysis: 3 hours.

(Prerequisites: EM 3413 or ME 3613 and senior standing). Three hours lecture. Fourier methods, shock spectra, signature analysis, relation to specific phenomena and malfunctions; acoustical aids; field measurement analysis; random functions, correlations; mobility and impedance methods

ME 4301 Thermo-Fluids Laboratory: 1 hour.

(Prerequisites: ME 3103, EM 3313, ME 3313, ME 3523, and a technical junior-level writing course). Two hours laboratory. Selection, use of pressure, temperatures, fluid flow, heat transfer instrumentation. Experiments with fluid flow, thermodynamic systems, heat transfer. Statistical design of experiments

ME 4333 Energy Systems Design: 3 hours.

(Prerequisites: ME 3313 and ME 3113). Three hours lecture. Comprehensive design problems requiring engineering decisions, data acquisition, codes/standards compliance. Emphasis upon energy systems components: heat exchangers, piping networks, pumps. Fluid transients, system modeling

ME 4343 Intermediate Heat Transfer: 3 hours.

(Prerequisite: ME 3313). Three hours lecture. Condensation and boiling, analytical and numerical techniques for conduction and convection, gray-body and spectral-dependent radiation, transient and steady-state thermal modeling

ME 4353 Alternate Energy Sources: 3 hours.

(Prerequisite: ME 3313). Three hours lecture. Analysis and design of systems using energy derived from solar, hydro, geothermal, wind, ocean, waste, and biomass sources

ME 4373 Air Conditioning: 3 hours.

(Prerequisites: ME 3523 and ME 3313). Three hours lecture. Psychometrics; comfort conditions; determination of heat losses and gains; determination of sizes of elements; energy usage estimating; residential and commercial systems

ME 4393 Power Generation Systems: 3 hours.

(Prerequisites: ME 3313 and ME 3523). Three hours lecture. Evaluation and optimization of power generation systems with emphasis on optimization methods, system simulation, and economics. Energetic, economic, and environmental issues as well as exergy analysis may be incorporated in this course

ME 4401 Solid Mechanics Laboratory: 1 hour.

(Prerequisites: EM 3313, ME 3103, ME 3403, EM 2433, and a technical junior-level writing course). Two hours laboratory. Selection and use of strain gages, dimensional measurements, load cells, accelerometers; hands-on experiments with quasi-static and dynamic-impact testing, spring constants and vibrations

ME 4403 Machine Design: 3 hours.

(Prerequisite: ME 2133, a grade of C or better in EM 3213, and Co-requisite: ME 3403). Three hours lecture. Applied stress analysis and material strength theories for sizing and selecting materials of machine elements. Selection of gears, cams, belts, springs. Design projects

ME 4413 Casting and Joining: 3 hours.

(Prerequisite: ME 3403 or consent of instructor). Three hours lecture. Fundamentals of solidification in casting and joining processes, including design applications

ME 4423 Machining and Forming: 3 hours.

(Prerequisite: ME 3403 or consent of instructor). Three hours lecture. Fundamentals of mechanical processing of joining processes, including design applications. metals, including bulk and sheet forming techniques

ME 4443 Mechanical Systems Design: 3 hours.

(Prerequisites: ME 3423 and ME 4403). Three hours lecture. Mechanical design projects involving analysis; industrial standards and considerations for safety and manufacturability; the use of computers in design and manufacturing automation (CAD/CAM)

ME 4453 Lubrication: 3 hours.

(Prerequisite: Senior standing). Three hours lecture. Friction of solids and fluids. Lubricants. Theory of sliding bearings. Multi-dimensional bearings with constant forces and velocities. Film, hydrodynamic, and gas lubrication. Design of bearings

ME 4463 Engineering Design: 3 hours.

(Prerequisites: ME 3613 and Senior standing). Three hours lecture. In-depth topics in mechanical design. Design of friction devices, hydrodynamic drives, and shells of revolution. Design for thermal creep, thermal stresses, surface contact, and impact

ME 4543 Combustion Engines: 3 hours.

(Prerequisites: ME 3523 and ME 3313). Three hours lecture. Application of thermodynamics, heat transfer, and combustion in the determination of performance characteristics of various engines, e.g., internal combustion, jet, and rocket engines

ME 4623 Control Systems: 3 hours.

(Prerequisites: ME 3613 and ECE 3283). Three hours lecture. Principles of closed loop mechanical, electrical, hydraulic, pneumatic, and thermodynamic systems. Design of control systems

ME 4624 Experimental Methods in Materials Research: 4 hours.

(Prerequisites:CHE 3413 or ABE 3813 or ME 3403 or permission of instructors). Three hours lecture. Three hours laboratory . An introduction to research methodologies commonly used in the evaluation of treatments , and mechanical testing. (Same as ABE 4624/6624 and CHE 4624/6624)

ME 4643 Introduction to Vibrations and Controls: 3 hours.

(Prerequisite: ME 3613). Three hours lecture. Review of Laplace Transforms. Introduction to vibrations, Fourier analysis, linearization, system modeling and feedback controls

ME 4743 Labview: 3 hours.

(Prerequisite:ME 3701 or equivalent Labview enperience). Two hours lecture. Three hours laboratory. Labview programming for applications in laboratory data acquisition (DQA). Basic and intermediate graphical programming theory with emphasis on transducer measurements and triggering

ME 4823 Compressible Flow and Turbomachinery: 3 hours.

(Prerequisites: EM 3313 and ME 3523). Three hours lecture. Fundamental principles, shock and expansion waves, generalized one-dimensional flows, simple processes, energy transfer in turbomachines, turbomachine efficiencies, multi-dimensional effects

ME 4833 Intermediate Fluid Mechanics: 3 hours.

(Prerequisite: EM 3313). Three hours lecture. Differential equations of fluid mechanics, Newtonian and non-Newtonian fluids, boundary-layer theory, laminar and turbulent solutions, compressible flow with applications

ME 4990 Special Topics in Mechanical Engineering: 1-9 hours.

Credit and title to be arranged. This course is to be used on a limited basis to offer developing subject matter areas not covered in existing courses. (Courses limited to two offerings under one title within two academic years)

ME 6113 Material Selection in Design: 3 hours.

(Prerequisite: ME 3403 or equivalent). Three hours lecture. Principles of materials selection related to mechanical design requirements

ME 6123 Failure of Engineering Materials: 3 hours.

(Prerequisite:EM 3213 ) Three hours lecture. The failure of constituent materials using real -world case studies is the focus. Experimental and analytical techniques for failure analysis and prevention are covered.(Same as CE 4323/6323)

ME 6133 Mechanical Metallurgy: 3 hours.

(Prerequisite:ME 3403 or equivalent). Three hours lecture. The mechanical and metallurgical fundamentals of metals are discussed. Mechanical fundamentals cover the stress and strain relationships and metallurgical fundamentals cover the microstructure

ME 6193 Automotive Engineering: 3 hours.

Three hours lecture. Fundamentals of automotive engineering, including power units, mechanical systems, electrical system and industrial and systems engineering aspects. (Same as CHE/ECE/IE 4193/6193)

ME 6223 Mechanical Systems Analysis: 3 hours.

(Prerequisites: EM 3413 or ME 3613 and senior standing). Three hours lecture. Fourier methods, shock spectra, signature analysis, relation to specific phenomena and malfunctions; acoustical aids; field measurement analysis; random functions, correlations; mobility and impedance methods

ME 6333 Energy Systems Design: 3 hours.

(Prerequisites: ME 3313 and ME 3113). Three hours lecture. Comprehensive design problems requiring engineering decisions, data acquisition, codes/standards compliance. Emphasis upon energy systems components: heat exchangers, piping networks, pumps. Fluid transients, system modeling

ME 6343 Intermediate Heat Transfer: 3 hours.

(Prerequisite: ME 3313). Three hours lecture. Condensation and boiling, analytical and numerical techniques for conduction and convection, gray-body and spectral-dependent radiation, transient and steady-state thermal modeling

ME 6353 Alternate Energy Sources: 3 hours.

(Prerequisite: ME 3313). Three hours lecture. Analysis and design of systems using energy derived from solar, hydro, geothermal, wind, ocean, waste, and biomass sources

ME 6373 Air Conditioning: 3 hours.

(Prerequisites: ME 3523 and ME 3313). Three hours lecture. Psychometrics; comfort conditions; determination of heat losses and gains; determination of sizes of elements; energy usage estimating; residential and commercial systems

ME 6393 Power Generation Systems: 3 hours.

(Prerequisites: ME 3313 and ME 3523). Three hours lecture. Evaluation and optimization of power generation systems with emphasis on optimization methods, system simulation, and economics. Energetic, economic, and environmental issues as well as exergy analysis may be incorporated in this course

ME 6413 Casting and Joining: 3 hours.

(Prerequisite: ME 3403 or consent of instructor). Three hours lecture. Fundamentals of solidification in casting and joining processes, including design applications

ME 6423 Machining and Forming: 3 hours.

(Prerequisite: ME 3403 or consent of instructor). Three hours lecture. Fundamentals of mechanical processing of joining processes, including design applications. metals, including bulk and sheet forming techniques

ME 6443 Mechanical Systems Design: 3 hours.

(Prerequisites: ME 3423 and ME 4403). Three hours lecture. Mechanical design projects involving analysis; industrial standards and considerations for safety and manufacturability; the use of computers in design and manufacturing automation (CAD/CAM)

ME 6453 Lubrication: 3 hours.

(Prerequisite: Senior standing). Three hours lecture. Friction of solids and fluids. Lubricants. Theory of sliding bearings. Multi-dimensional bearings with constant forces and velocities. Film, hydrodynamic, and gas lubrication. Design of bearings

ME 6463 Engineering Design: 3 hours.

(Prerequisites: ME 3613 and Senior standing). Three hours lecture. In-depth topics in mechanical design. Design of friction devices, hydrodynamic drives, and shells of revolution. Design for thermal creep, thermal stresses, surface contact, and impact

ME 6543 Combustion Engines: 3 hours.

(Prerequisites: ME 3523 and ME 3313). Three hours lecture. Application of thermodynamics, heat transfer, and combustion in the determination of performance characteristics of various engines, e.g., internal combustion, jet, and rocket engines

ME 6623 Control Systems: 3 hours.

(Prerequisites: ME 3613 and ECE 3283). Three hours lecture. Principles of closed loop mechanical, electrical, hydraulic, pneumatic, and thermodynamic systems. Design of control systems

ME 6624 Experimental Methods in Materials Research: 4 hours.

(Prerequisites:CHE 3413 or ABE 3813 or ME 3403 or permission of instructors). Three hours lecture. Three hours laboratory . An introduction to research methodologies commonly used in the evaluation of treatments , and mechanical testing. (Same as ABE 4624/6624 and CHE 4624/6624)

ME 6643 Introduction to Vibrations and Controls: 3 hours.

(Prerequisite: ME 3613). Three hours lecture. Review of Laplace Transforms. Introduction to vibrations, Fourier analysis, linearization, system modeling and feedback controls

ME 6743 Labview: 3 hours.

(Prerequisite:ME 3701 or equivalent Labview enperience). Two hours lecture. Three hours laboratory. Labview programming for applications in laboratory data acquisition (DQA). Basic and intermediate graphical programming theory with emphasis on transducer measurements and triggering

ME 6823 Compressible Flow and Turbomachinery: 3 hours.

(Prerequisites: EM 3313 and ME 3523). Three hours lecture. Fundamental principles, shock and expansion waves, generalized one-dimensional flows, simple processes, energy transfer in turbomachines, turbomachine efficiencies, multi-dimensional effects

ME 6833 Intermediate Fluid Mechanics: 3 hours.

(Prerequisite: EM 3313). Three hours lecture. Differential equations of fluid mechanics, Newtonian and non-Newtonian fluids, boundary-layer theory, laminar and turbulent solutions, compressible flow with applications

ME 6990 Special Topics in Mechanical Engineering: 1-9 hours.

Credit and title to be arranged. This course is to be used on a limited basis to offer developing subject matter areas not covered in existing courses. (Courses limited to two offerings under one title within two academic years)

ME 7000 Directed Individual Study in Mechanical Engineering: 1-6 hours.

Hours and credits to be arranged

ME 8000 Thesis Research/ Thesis in Mechanical Engineering: 1-13 hours.

Hours and credits to be arranged

ME 8011 Graduate Seminar: 1 hour.

Presentation and discussion of research and current mechanical engineering literature by students, faculty, and visiting lecturers. Attendance required for students in Mechanical Engineering Graduate Program

ME 8144 Transmission Electro Microscopy: 4 hours.

(Prerequisite:Consent of Instructor). One hour lecture. Six hours laboratory. Introduction to TEM including life sciences (tissue) and engineering (crystalline materials) topics. (Same as EPP 8144)

ME 8213 Engineering Analysis: 3 hours.

Three hours lecture. The formulation of mathematical methods of advanced engineering problems and the use of mathematical techniques for their solution: equilibrium, eigenvalue, and propagation problems

ME 8223 Inelasticity: 3 hours.

(Prerequisite:EM 8113 and EM 8203 ) Three hours lecture. This course covers plasticity, creep, viscoelasticity, and inelastic behavior in relation to microstructure-property relations, constitutive modeling at different length scales, and computational simulations.(Same as CE 8323)

ME 8243 Finite Elements in Mechanical Engineering: 3 hours.

(Prerequisites: ME 4403 and EM 3213). Three hours lecture. Concepts and applications of finite element analysis in mechanical engineering problems

ME 8253 Fatigue in Engineering Design: 3 hours.

Three hours lecture. Prediction and prevention of fatigue failure in metallic materials

ME 8313 Conductive Heat Transfer: 3 hours.

Three hours lecture. Closed form analytical and approximate numerical solutions to one, two, and three dimensional steady-state and transient problems in conduction heat transfer

ME 8333 Convective Heat Transfer: 3 hours.

Three hours lecture. Analytical and empirical methods of solution of problems in laminar and turbulent, natural and forced convective heat transfer. Stability; thermal boundary layer techniques; multiphase systems

ME 8353 Advanced Energy Conversion: 3 hours.

(Prerequisite: Graduate standing in Mechanical Engineering or consent of instructor).Three hours lecture. Physical process in advanced energy conversion technologies, with practical application to devices/energy cycles. Emphasis on fuel cells, photovoltaics, and related materials engineering issues

ME 8373 Integrated Computational Materials Engineering: 3 hours.

(Prerequisites: EM 3213 and ME 3403). Three hours lecture. Survey course of various length scale computational analysis related to materials modeling. Emphasis upon projects and exercises

ME 8513 Classical Thermodynamics: 3 hours.

Three hours lecture. Postulational treatment of the physical laws of equilibrium, thermostatics. Equations of state, processes, equilibrium stability, reactive systems, phase transitions

ME 8613 Dynamical Systems: 3 hours.

Three hours lecture. Mathematical description and simulation of systems with mechanical, electrical, pneumatic, and hydraulic components; state variables; bondgraphs; stability; observability and controllability

ME 8733 Experimental Procedures: 3 hours.

Three hours lecture. Design of experiments; instrumentation; data acquisition; and correlation and evaluation of results

ME 8813 Viscous Flow I: 3 hours.

Three hours lecture. Fundamental laws of motion for a viscous fluid; classical solutions of the Navier-Stokes equations; inviscid flow solutions; laminar boundary layers; stability criteria

ME 8823 Viscous Flow II: 3 hours.

(Prerequisite: ME 8813 or equivalent). Three hours lecture. Numerical solution techniques for viscous flow equations. Turbulence and turbulence modeling. Current literature and topics

ME 8843 Unstructured Grid Technology: 3 hours.

(Prerequisites: ASE 8413, proficiency in computer programming, and consent of instructor). Three hours lecture. Unstructured grid generation based on Delaunay, Advancing-Front, Iterative Point Placement, and Local- Reconnection techniques. Implementation of unstructured Finite-Element/Volume methods for engineering applications

ME 8990 Special Topics in Mechanical Engineering: 1-9 hours.

Credit and title to be arranged. This course is to be used on a limited basis to offer developing subject matter areas not covered in existing courses. (Courses limited to two offerings under one title within two academic years)

ME 9000 Dissertation Research /Dissertation in Mechanical Engineering: 1-13 hours.

Hours and credits to be arranged