Naslov
Thermoacoustic device for conversion of solar energy to electricity

Autori
Firak, Mihajlo

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
International Congress Energy and Enwironment 2008 Vol. II / Bernard Franković - Rijeka : Tisak Zambelli - Rijeka, 2008, 101-109

ISBN
978-953-6886-13-5 2

Skup
International Congress Energy and Enwironment 2008

Mjesto i datum
Opatija, Hrvatska, 22.10.2008. - 24.10.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
thermoacoustic; solar energy; linear alternator

Sažetak
A small experimental standing wave thermoacoustic device for electricity generation using concentrated solar energy has been constructed and tested. It consists of hermetically closed resonant housing with transparent glass window for solar energy input, ceramic thermoacoustic stack, cooper cooler, and linear alternator. The working medium inside the housing is air at normal pressure. When there is a sufficient temperature difference at the ceramic stack, it produces sound standing waves. These waves provoke a linear alternator to produce electricity. Solar energy is collected and concentrated by means of a parabolic mirror. Output alternating electricity is converted to heat in the variable electrical resistor (load) connected to the coil of the alternator. Alternating voltage, current and power have been measured and analysed. The overall system efficiency can be determined by comparing input solar power and output electrical power. The aim of the presented device is to study appropriate design, construction and materials to build a more efficient device and for demonstration of this concept of CO2 free electricity generation.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA