Laboratory Supervisor: KATSANEVAKIS Athanasios (Associate Professor)

The Renewable Energy Sources Laboratory serves the needs of the course:

• Renewable Sources of Energy – RSE
• Steam boilers, steam turbines and energy systems
• Heat.

Renewable Energy Sources – RES

Course Objectives: To acquire knowledge and skills in the use of renewable energy.

Course Purpose: The ability to understand the phenomena associated with renewable energy sources and converting them into useful work. The calculation of the potential of renewable energy. The calculation of environmental impacts from the use of renewable energy.

Course description: The course is implemented through lectures, active participation in solving the Act as well as participation in workshops.

The subjects covered are:
About the RSE, potentials and limits of using renewable energy, meeting energy needs with renewable energy, problems and current efforts for their exploitation, Fundamentals of wind energy, wind characteristics, boundary layer, the wind energy, wind measurements, Betz limit, types wind generators -A/C-, efficiency A/C main sections A/C, wind farms, force analysis on the blades A/C-spoilers-, calculation of annual energy production, economic component of wind energy, solar energy fundamentals , solar radiation, solar constant, characteristics of solar radiation outside and inside the Earth’s atmosphere, location and movement of the sun relative to the observer on earth, direct and diffuse solar radiation, methods and instrumentation, calculation of solar radiation, solar flat collectors, operating principles, balances energy, typical performance, selective surfaces, pivot, solar panels, efficiency, photovoltaics –P/V- typical performance P/V, wiring ways P/V, efficiency, hydro, hydroelectric types of power plants , calculation of the energy produced, biomass, combustion, pyrolysis, gasification, biofuels, financial elements of RSE investments.

In the laboratory, the following experiments are implemented in laboratory devices: :

Measurement of energy contained in air flow, operating data of small laboratory A / C and calculation of efficiency, effect of the impact angle of blade attact on the characteristics of A / C, measuring the operational characteristics of P/V in the laboratory and outdoors, measuring the impact of P/V/ connection, energy balance in solar collectors, visiting RSE installation.

Steam boilers, steam turbines and energy systems.

Course Objectives: To acquire knowledge in the field of industrial boilers of thermal turbomachinery and production systems and energy conversion.

Course Purpose: The ability to understand the phenomena associated with the production and use of thermal energy and convert it into work. The energy calculation of the components of the plants, use and conversion of heat into work. The calculation of environmental impacts from energy production and usage.

Course description: The course is implemented through lectures, active participation in solving problems as well as participation in workshops.

The subjects covered are:
Fundamentals of Engineering Thermodynamics, statutory terms, conditions, and water vapor, combustion, combustion equations, calculations for supplying combustion air, waste gas composition, carbon dioxide, environmental implications of energy production and energy use, fuel, types of burners, description and operation of steam productors, energy balancing in exchangers and boilers, heat transfer in key parts of the steam productor, smoke stack, calculate dew point of waste gases, steam pipe networks, elements of steam networks, pressure loss calculations, heat, steam traps, condensate networks, constructional elements of networks, water processing for use in steam boilers, steam boiler operation safety regulations, basic operating principles of steam whirls, calculation flow in blades, triangles of speed, thermodynamic calculations, whirls of action and reaction, calculation of whirl efficiency, electrical energy production cycles, RANKINE cycle, energy balances in circles of power production, calculation of efficiency, methods for improving efficiency, alternative power production methonds, future directions.

In the laboratory the following experiments are implemented in laboratory device of superheated steam production of up to 400 kg/h and power of up to 15 kW:

Power balance of steam boiler, waste gas analysis, heat loss from insulated pipe, energy balance of steam whirl, energy balance in a heat exchanger condenser, calculation of efficiency of RANKINE cycle. In the mean time, experimental results are compared with results of theoretical calculations in order for the students to gain perception about the relationship between natural phenomena and methodologies of calculation.

Additionally, in the laboratory a the combustion chamber exists, for student familiriasiation with the operation of the burners and configuring the combustion parameters.

Heat transmission

Course Objectives: To acquire knowledge in the field of heat transfer.

Course Purpose: The ability of students to understand the phenomena of heat transfer and be able to quantify.

Course description: The course is implemented through lectures and active participation in solving the problem..

The covered subjects are:

Fundamentals of heat transfer, heat transfer by conduction, convection, radiation, basic equations, typical applications, dimensionless numbers in heat transfer, complex heat transfer, Heat transmission in insulating materials, heat transfer to walls, heat transfer in a vane surfaces, heat to pipes, heat transfer in heat exchangers, Applications.