PENGARUH SUDUT KEMIRINGAN PLAT TERHADAP KOEFISIEN PERPINDAHAN PANAS KONVEKSI BEBAS

Abstract

In general literature, there is no Nuselt Number formula on several angle flat plate at free convection. There
are the local Nuselt Number formulas for forced convection heat transfer in cross flow on pipe. While in the practical
tecnology as in the boiler, we find pipe or plat at in angle. The aim of this research is to discript the influence of angle
of plate to Nuselt Number for free convection heat transfer. The hot fluid is steam and cold fluid is water.
Steam flow at low Renold Number or laminair flow (pressure difference about stagnation and static prssure at
1 cm coloum water). We asume that thermal conducticity for plate material is known (from conduction table). From the
series heat transfer, convection on hot fluid, conduction on plate material and convection on cold fluid, we can find the
free convection at hot and cold fluid. Than we can calculate Nuselt Number at both free convection. The form of free
convection at this result and theoritical are similar with a little deviation.