Owing to water deficit and environmental concerns, the compatibility of dry cooling technology with supercritical CO2 (sCO2) power cycle in concentrated solar power (CSP) offers superior thermal performance even at higher climate temperatures. One of the key challenges associated with sCO2 power cycles is the cooling of working fluid near the critical temperature and pressure. The nonlinear and sharp variation of sCO2 properties with bulk temperature poses a unique heat exchanger design problem not encountered with the constant property fluids. A reliable and well-designed cooling system is required for the efficient and smooth operation of a thermal power plant. In arid areas, natural draft dry cooling towers (NDDCT) are preferred over the wet coolers due to the insufficient water supply, environmental concern and the high maintenance and operation cost related to wet cooling.