  Laboratory experiments were conducted to study heat transport characteristics
in a nonhomogeneously heated fluid annulus subjected to rotation along the
vertical axis (z). The nonhomogeneous heating was obtained by imposing radial
and vertical temperature gradient ({\Delta}T). The parameter range for this
study was Rayleigh number, Ra=2.43x10^8-3.66x10^8, and Taylor number,
Ta=6.45x10^8-27x10^8. The working fluid was water with a Prandtl number, Pr=7.
Heat transport was measured for varying rotation rates ({\Omega}) for fixed
values of {\Delta}T. The Nusselt number, Nu, plotted as a function of Ta
distinctly showed the effect of rotation on heat transport. In general, Nu was
found to have a larger value for non-rotating convection. This could mean an
interplay of columnar plumes and baroclinic wave in our system as also evident
from temperature measurements. Laser based imaging at a single vertical plane
also showed evidence of such flow structure.
