摘要
节能降耗技术是推动设施农业绿色低碳转型升级的关键,相变储热技术因较大的储热密度和优异的温度调节能力,在太阳能热利用、温室墙体、土壤保温等设施农业领域展现了广阔的应用前景.简述了相变材料的主要类型和物理化学性质,介绍了适用于设施农业的相变材料宏封装、定型相变材料和相变胶囊这3种相变材料形式及其制备方法,从主/被动相变储热系统的角度综述了相变材料在设施农业中的应用进展,指出相变材料性能强化、相变储热系统优化、设施农业室内环境控制系统智能化是未来设施农业用相变材料的发展方向.
Abstract
The energy-saving and consumption reduction technologies are the key to the green and low-carbon upgrades of the facility agriculture.Latent heat storage technology is promising in applications in the fields of facility agriculture,like solar thermal utilization,greenhouse walls,and soil insulation due to its high thermal storage density and excellent temperature control performance.This paper provided an overview of the main types and physicochemical properties of phase change materials(PCMs),and introduced the forms and preparation methods of three PCMs that suitable for facility agriculture:macro-encapsulated,shaped-stabilized,and encapsulated PCMs.It then summarized the application of PCMs in facility agriculture files from the perspectives of active and passive latent heat storage systems.Finally,the paper highlighted the future development directions of PCMs in facility agriculture field,including improving the performance of PCMs,optimizing latent heat storage systems,and intelligent indoor environmental control for facility agriculture.
维普
万方数据