Techno-economic analysis of multi-tower solar particle power plants

Solar-Powered Direct Air Capture: Techno-Economic and Environmental Assessment

“…This also eliminates the need for the air separation unit, the gas turbine for electricity production, and the turbine’s flue gas CO 2 absorber. While conventional calciners typically have very large capacities, the solar calciner considered in this study is limited to a thermal power of 41.7 MW under design conditions, and only one can be installed in each solar tower. , As previously mentioned, the plant is divided into continuous and intermittent sections, as shown in Figure . Each of these sections is equipped with a steam turbine (as opposed to a single turbine in the original process) that converts waste heat to electricity, providing an optimal heat recovery strategy.…”

“…The selected solar calcination technology is the CentRec receiver, chosen for its simplicity and relatively high technology readiness level (TRL). , The heat output of the field was multiplied by the reactor efficiency, which was found to be 87.8% (with an incident flux of 1.7 MW/m 2 ) under the design conditions of 900 °C and an aperture diameter of 3 m . According to our Aspen Plus simulation, the heat requirement of the solar calciner is 1.51 MWh/t CO 2 .…”