Performance augmentation strategy of Parabolic trough collector by employing MXene-based solar absorbing coating

The investigation intends to study the performance of Direct Absorption Parabolic Trough Collector for lowtemperature practices. From the ages, the pathway for strengthening the efficiency of solar collector is been obstructed by state-of-the-art parabolic trough collectors undergoing severe re-radiation losses. Based on this, a novel strategy to coat the absorber tube and its performance (Energy, Environment, and Economy) is investigated. In this regard MXene particles with Black paint are used on the inner layer of coating followed by dip coating of MgF2 and SiO2 particles; furthermore, MXene/ water is used as heat transfer fluid. The highest thermal efficiency is reported to be 58.5% followed by 53% and 48% in coated and normal absorber tubes. The size reduction of the collector also drops in coated by 38.64%, 3,2.7%, and, 25.18% in coated and normal absorber tubes this lays a foundation for the calculation of embodied energy, and further emissions were studied and maximum drop per kg reported in MX/ BP with SiO2 coated absorber tube. Our retrofitted PTCs have a payback period of 2.324 and 2.322 for MgF2 and SiO2 outer layer coatings, respectively.

Automated summary

The investigation focuses on the performance of Direct Absorption Parabolic Trough Collector in low-temperature applications. By coating the absorber tube with MXene particles and black paint, followed by dip coating of MgF2 and SiO2 particles, as well as using MXene/water as the heat transfer fluid, the highest thermal efficiency achieved was 58.5%. This provides a foundation for calculating embodied energy and reducing emissions.