EXPERIMENTAL ANALYSIS OF A VELOCITY FIELD USING VARIABLE CHIMNEY DIAMETER FOR SOLAR UPDRAFT TOWER
Titel:
EXPERIMENTAL ANALYSIS OF A VELOCITY FIELD USING VARIABLE CHIMNEY DIAMETER FOR SOLAR UPDRAFT TOWER
Auteur:
Neeraj Mehla, Rahul Makade, N.S.Thakur
Verschenen in:
International journal of engineering science and technology
Paginering:
Jaargang 3 (2011) nr. 4 pagina's 3167-3171
Jaar:
2011
Inhoud:
A solar updraft tower consists of an air collector 1.4 m in diameter and 80 cm tall chimney was set upin NIT Hamirpur, Himachal-Pradesh, India. The objective of the study was to investigate the variation of velocity with essential geometricparameter of the system. The solar updraft tower system consists of three essential elements- collector, chimney height and wind turbine. The output power of a system is depended on the input velocity to the wind turbine. Turbine inlet velocity (V) is the function of five parameter of the solar updraft tower systems such as collector diameter (Dc), roof glass angle (β), entrance height (h), tower's height (Ht), tower's diameter (D), out of which variable roof angle and the chimney height is analysis. It was found that the solar chimney diameter of 8 cm is having the maximum velocity for the constructed setup, and the ratio of chimney diameter to chimney heightwas found to be 0.1.