Cold-heat adaptive control for cross-season based on bi-salt composite sorbent

Abstract

<p indent=0mm>Efficient utilization of solar energy and industrial waste heat has become an important research topic in heat recovery. The sorption continuous cool-heat storage method can be used for cross-season cold-heat adaptive control owing to its advantages of high cooling and heating storage density, long-term and stable storage, and adjustable output temperature. However, this method involves the screening and synthesis of novel sorbents and optimal design of the cross-season combined cold-heat storage system. To solve the problems of low heat storage rate, high heat dissipation in the storage process, intermittent output of cold-heat, and uncontrollable temperature output in the process of adaptive control of industrial waste heat in an industrial area, a high-performance bi-salt consolidated composite sorbent is synthesized and screened in this work. Moreover, an optimized cross-season cold-heat adaptive control system is developed. Additionally, we investigate the sorption/desorption characteristics of the composite sorbent and then test the cold-hot storage/output effect of the seasonal cold-heat adaptive control system. The method adopted in the strategy mainly focuses on the efficient utilization and critical requirements of low-grade energy, such as solar energy and industrial waste heat. From the aspects of material synthesis and screening, sample performance characterization test, construction optimization, and performance evaluation of cold-heat adaptive control system, a complete set of technical solutions for the reasonable seasonal distribution of low-grade thermal energy is proposed. It provides insights for seasonal cold-heat combined storage/output.