TY - JOUR
TI - Steady state analysis of regular hollow pyramidal radiating fin with triangular cross-section
AU - Venkataramanan Vijaikrishnan
AU - Madhavaneswaran Ramakrishnan
AU - Shanmugam N. Siva
JN - Thermal Science
PY - 2015
VL - 19
IS - 1
SP - 59
EP - 68
PT - Article
AB - A new configuration for space radiator is proposed introducing a fin of  regular hollow pyramidal shape with triangular cross section, giving a higher  improvement in heat loss per unit mass than that of other corresponding  configurations previously proposed under same working conditions. The  significance of the present configuration and its advantage over other  regular hollow configurations are discussed and effect of various design  parameters on heat transfer is analyzed in presence of radiation interaction  with an isothermal base attached to it. Optimum parameters are identified for  which improvement in heat loss per unit mass is the maximum. It is found that  the fin efficiency decreases with increase in the emissivity & height of the  fin and increases with increase in thickness & top radius of the fin.  Correlations are presented for optimum design parameters, optimum improvement  in heat loss per unit mass and fin efficiency.