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: 
Inclass presentation of the involved phenomena, the concepts, the techniques and the basic calculations for all the established RES technologies (photovoltaics, windturbines, hydroelectric plants, geothermal cogeneration, heat pumps, cogeneration from biomass combustion/gasification and biogas) – including basic technoeconomic calculations and inclass problemsolving.

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 202020. 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, currentvoltage and poervoltage curves, operational features of photovoltaics, cost elements and pricing policy, estimation of PayOutTime of photovoltaic stations. Types of hydroelectric plants, Bernouli energy balance for flow in pipes, height losses, Euler equation, velocity triangles, types of hydroturbines. Geothermal sources, flow of one and twophase geothermal fluids according to pressure variation, applications of electro and cogeneration. Geothermal, hydrothermal and conventional heat pumps, basic design calculations. Wind velocity distribution, velocity triangles analysis, efficiency and wind turbines power curve, estimation of annual electrogeneration according to the local wind velocity distribution, cost elements and technoeconomic 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, Fluiddynamics, Economics for engineers

LERANING OUTCOMES AND COMPETENCES:

Α) Knowledgebased
Understanding of:
Β) Skils/Competences acquired ς
Ability to:

ASSESSMENT METHODS: 
Weekly tests, midterm and final exams.

TEACHING LANGUAGE: 
Greek 