ΤΙΤΛΟΣ ΜΑΘΗΜΑΤΟΣ: ΤΕΧΝΟΛΟΓΙΑ ΚΑΙ ΔΙΑΧΕΙΡΙΣΗ ΥΓΡΩΝ ΑΠΟΒΛΗΤΩΝ Ι

COURSE UNIT TITLE:

ΤΕΧΝΟΛΟΓΙΕΣ ΑΝΑΝΕΩΣΙΜΩΝ ΠΗΓΩΝ ΕΝΕΡΓΕΙΑΣ

 

COURSE UNIT CODE:

 

 

TYPE OF COURSE:

 

Compulsory

LEVEL OF COURSE:

 

First Cycle, General Education

SEMESTER OF STUDY:

 

Third Year, 6th semester

ECTS:

 

5

MODE OF DELIVERY:

In-class presentation of the involved phenomena, the concepts, the techniques and the basic calculations for all the established RES technologies (photovoltaics, wind-turbines, hydro-electric plants, geothermal co-generation, heat pumps, co-generation from biomass combustion/gasification and biogas) – including basic techno-economic calculations and in-class problem-solving.

 

CONTACT TEACHING:

4 hours lectures and 2 assisting classes.

 

ΠΕΡΙΕΧΟΜΕΝΟ

ΤΟΥ ΜΑΘΗΜΑΤΟΣ:

Basic principles of the energy balance of a country (inland production, gross and final energy consumption), specific energy content of fuels and specific CO2 emissions, environmental implications of fossil fuels (global warming), depletion of fossil fuel reserves, RES potential, targeta and prospects, National Renewable Energy Action Plans, The Directive 20-20-20.

Solar radiation and its variations around the day and around the year, daylight duration, solar energy per day in a plane of variable inclination, air mass index, the overall coefficient of radiation on a plane collector. 

Photovoltaics, current-voltage and poer-voltage curves, operational features of photovoltaics, cost elements and pricing policy, estimation of Pay-Out-Time of photovoltaic stations.

Types of hydro-electric plants, Bernouli energy balance for flow in pipes,  height losses, Euler equation, velocity triangles, types of hydro-turbines.

Geothermal sources, flow of one and two-phase geothermal fluids according to pressure variation, applications of electro- and co-generation.

Geothermal, hydrothermal and conventional heat pumps, basic design calculations.

Wind velocity distribution, velocity triangles analysis, efficiency and wind turbines power curve, estimation of annual electro-generation according to the local wind velocity distribution, cost elements and techno-economic analysis.

Types and potential of biomass, elemental and proximate analysis, apparent and energy density of biomass, heating value of biomass and biofuels, production and transportation cost, an overview of the involved technologies.

Biomass combustion, types and technologies of burners and boilers, oxygen excess, stoiciometric calculations, heat losses and efficiency, cogeneration in steam turbines, cost elements, pricing policy and basic technoeconomic calculations.

Biomass gasification, technologies and types of gasifiers, gasification medium, auto and allothermal gasification, stoichiometric and energetic calculations, cogeneration in combined cycles, cost elements, pricing policy and basic technoeconomic calculations.

Anaerobic digestion, production and composition of biogas, chemical formula of anaerobic digestion, retention time and conversion, cogeneration in internal combustion engines cost elements, pricing policy and basic technoeconomic calculations.

 

LECTURER NAME:

Costas Athanasiou, lecturer

 

 

RECOMMENDED READING:

 

Extended bibliographic list.

 

LECTURERNAME:

Costas Athanasiou, lecturer

 

PREREQUISITES:

Applied Thermodynamics, Fluid-dynamics, Economics for engineers

 

LERANING OUTCOMES AND COMPETENCES:

 

Α) Knowledge-based

 

Understanding of:

  • the terminology of energy balances policies and legislation,
  • the issues of global warming, the fossil fuel reserves depletion, and the role and planning for RES
  • the variations of solar radiation and the corresponding photovoltaic electricity generation
  • velocity triangle analysis in hydro and wind turbines
  • geothermal fluids flows
  • biomass composition and conversion technologies
  • basic techno-economic calculations for photovoltaic and wind stations as well as biomass/biogas cogeneration

 

Β) Skils/Competences acquired ς

 

Ability to:

  • calculate solar radiation in planes of variable inclination and its conversion to electrical power
  • calculate the power output of hydro-electric plants
  • calculate the power output of geothermal plants
  • design and performance calculations on heat pumps
  • calculation of generated power and energy by wind-turbines
  • design and calculation of power output and efficiency of biomass based cogeneration plants
  • basic economic calculations for photovoltaic and wind stations as well as for biomass based cogeneration plants

 

ASSESSMENT METHODS:

Weekly tests, midterm and final exams.

 

TEACHING LANGUAGE:

Greek

 

Contact

  • Address:Department of Environmental Engineering, 67100, Xanthi

  • Telephone: 30 25410 79109,79117,79112

  • Email: secr@env.duth.gr