MEC 398
Thermodynamics II
Spring 2005
Technical Elective Course

http://me.eng.sunysb.edu/~mec398

2004-05 Catalog Data

MEC 398: Thermodynamics II. Credit 3. Psychometrics and psychometric charts. Thermodynamic considerations for the design and performance of cooling towers, humidifiers, and dehumidifiers. Reacting mixtures, combustion, and chemical equilibrium. Thermodynamics of fluid flow, simple compression and expansion processes. Analysis and design of gas and vapor power cycles. Cycles with reheat, intercooling, and cogeneration plants. Refrigeration cycles.

Prerequisite: MEC 301 and MEC 364

Textbook: J.J. Moran and H.N. Shapiro, Fundamentals of Engineering Thermodynamics, John Wiley and Sons, Inc.

Course Objectives:

Introduce the students to the application of thermodynamic principles to the integrated system design, performance, and application of vapor power systems, gas poser systems, and refrigeration systems. Included in these topics are the Rankine power cycle, Brayton power cycle, refrigeration cycles, combustion, psychometrics, cooling towers, humidification, dehumidification, turbines, pumps, and compressors.

Topics:

1. Vapor power cycles – Rankine cycle, superheat, reheat, and feedwater heat, application to power generation. (7 class hours)
2. Nonreacting ideal gas mixtures. (1 class hour)
3. Psychometrics – humidity ratio, relative humidity, dew point; adiabatic-saturation, wet-bulb and dry-bulb temperature; psychometric charts; energy and mass balances and psychometric applications; relation to power vapor power cycle. (6 class hours)
4. Combustion – combustion reactions, fuels, complete and incomplete combustion; enthalpy, energy balances, and entropy; adiabatic flame temperature; relation to vapor power cycle. (7 class hours)
6. Oral presentation of student team power system design projects (6 class hours)
7. Gas power cycles – Brayton gas cycle, regeneration, reheat, and intercooling; tour of gas turbine co-generation plant; application to space power cycles; propulsion systems. (6 class hours)
8. Refrigeration and heat pump systems – refrigeration and heat pump systems, performance and applications (5 class hours)
9. Refrigeration and heat pump demonstration (1 class hour)
10.Flow nozzles and diffusers – thermodynamics of flow in a nozzle and application to propulsion systems. (3 class hours)

Schedule: Two 80 minute lectures per week

Demonstrations: heat pump, tour of gas turbine co-generation plant

Computer Usage: (incidental) The students were required as part of design project to prepare a presentation using Microsoft PowerPoint. They were encouraged to use Microsoft Excel as part of calculations for the design project to do parametric performance tradeoffs. The used computer-based thermodynamic data as part of the heat pump demonstration.

Professional Components: (b) engineering science, 2 credits; engineering design, 1 credit

Relationship to Program Outcomes:

An ability to apply knowledge of mathematics, science, and engineering to mechanical engineering problems; (a)

An ability to work professionally in both the thermal and mechanical systems areas, including the design and realization of such systems to meet desired needs; ©

An ability to identify, formulate, and solve engineering problems; (e)

An ability to communicate effectively in written, oral, and visual form; (g)

An understanding of the impact of engineering solutions in a global and societal context; (i)

A knowledge of contemporary issues; (j)

An ability to use modern engineering techniques, skills, and computing tools necessary for engineering practice. (k)

Coordinators: Korach, Longtin and Zhang

Prepared by: L.S. Wang

Date: March 2005