Abstract Stand-alone photovoltaic systems usually use batteries to adjust energy yield to energy demand. An alternative energy storage system for stand-alone photovoltaic installations is proposed for three cooling applications: air conditioning, food preservation and freezing. A thermally insulated storage tank with ammonia in saturated mixture phase is integrated into the vapour-compression cooling cycle. A thermodynamic model and an economic assessment based on typical costs and cost sensitivity are included to assess the proposed system performance in comparison with a conventional stand-alone photovoltaic system with a vapour-compression cycle. Results show that the proposed storage strategy is an affordable option, especially in hot climates and for food preservation and freezing applications.

中文翻译：

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一种用于冷却独立光伏装置的新型存储系统

摘要 独立的光伏系统通常使用电池来调整能量产量以适应能源需求。提出了一种用于独立光伏装置的替代储能系统，用于三种冷却应用：空调、食品保鲜和冷冻。具有饱和混合相的氨的绝热储罐被集成到蒸汽压缩冷却循环中。包括基于典型成本和成本敏感性的热力学模型和经济评估，以评估与具有蒸汽压缩循环的传统独立光伏系统相比所提出的系统性能。结果表明，所提出的储存策略是一种经济实惠的选择，尤其是在炎热气候下以及食品保鲜和冷冻应用中。