37402 - Advanced Energy Systems and Cogeneration M

Learning outcomes

Course contents

Gas Turbine

Thermodynamic analysis and applications of Brayton and Advance cycles (recuperated, intercooled, reheated, etc.)

Component description: compressors, combustion chamber, expander, etc.

Environmental impact

Cogeneration: Combined heat and power

Thermodynamics of CHP plants, comparative thermodynamic performance, economic assessment

Performance criteria for CHP plants

CHP applications and examples.

 

Numerical modeling of advanced energy systems

Use of a dedicated software to model the following energy systems:

• Brayton cycle and cooled gas turbine,
• inter-cooled compressor,
• inter-cooled + re-heat GT cycle,
• gas-steam combined cycle,
• CHP energy systems.

Course contents

Requirements/Prior knowledge

A prior knowledge and understanding of physics, thermodynamics and chemistry is required to attend with profit this course.

In addition, students should know how to use mathematical tools useful for analyzing and modeling fluid machines and energy systems.

Fluent spoken and written Italian is a necessary pre-requisite: all lectures and tutorials, and all study material will be in Italian.

 

Course contents

Gas Turbine

The gas turbine market, the aero-derivate and the heavy duty models, the optimal compressor ratio at maximum work or maximum efficiency, multi-spool arrangements, methods of accounting for component losses, design performance.

Component characteristics, off-design operation of single shaft and multi shafts design, off-design operation of free turbine engine, methods of improving part-load performance.

Methods for turbine cooling: open loop and close loop systems, air cooling mass flow calculation, performance losses

 

Advance gas turbine cycles

Regenerative gas turbine, inter-cooler compressor, reheat, steam/water injection, inverted Bryton cycle, humid air turbine

 

Cogeneration: Combined heat and power

Thermodynamics of combined heat and power plants (CHP), thermodynamic performance, economic assessment

Gas turbine cogenerative application, back pressure steam turbine, condensing steam turbine, combined heat and power in cogenerative applications, 

Readings/Bibliography

"Gas Turbine Theory" H. Cohen, G.F.C. Rogers, H.I.H. Saravanamuttoo, Longman scientific & technical

Teaching methods

The course consists of 6 credits (CFU) divided into two modules: the first one (3 CFU) taught by prof. Michele Bianchi and the second one (3 CFU) by prof. Andrea De Pascale.
The first module provides theoretical lessons in class, while the second is done in the lab, using a software dedicated to the simulation of advanced energy systems. Lectures in the lab are carried out by describing and projecting numerical models of complex energy systems. Students can use the same software in the lab and they are able to reproduce models of the energy systems described by the teacher.

Assessment methods

The examination at the end of the course aims to assess the achievement of learning objectives, verifying the knowledge that the students have acquired about design aspects, structural, functional and management of fluid machines and energy systems.

The final grade is defined by a single oral exam, testing the student's knowledge in all topics covered in the 3 CFU theoretical lessons and numerical laboratory; regarding the lab activity, student are requested to provide and discuss a report of the energy system models developed in the lab.

Teaching tools

Teaching materials: teaching material presented in class will be made available to the student in electronic format via internet.

This material should be printed and brought to class. To download the teaching material: http://campus.unibo.it/ Username and password are reserved for students enrolled at the University of Bologna

Office hours

See the website of Michele Bianchi

See the website of Andrea De Pascale