This work presents a novel and sustainable solution based on combined heat and power (CHP) system integrated with a simultaneous charging-discharging type thermal energy storage tank. The multi-generation system uses biogas as the heat source and is analyzed from the thermodynamic, exergoeconomic, and environmental perspectives. The proposed configuration aims to meet the electrical requirements of a cluster of 20 villages, greenhouse heating, and hot air production for agricultural drying applications. The exhaust gases from the biogas fired turbine are utilized to power a recompression supercritical CO₂ and steam Rankine cycle. The additional surplus heat is stored inside a simultaneous charging/discharging type thermal storage tank that provides favorable conditions (50–55 °C) for biogas producing microorganisms to maximizing gas production. The meso-erythritol (sugar alcohol) is used as a phase change material due to its high latent heat and large supercooling (>60 °C), suitable for the present applications. The PCM is characterized on heat flux Differential scanning calorimeter (DSC) and thermophysical properties are evaluated. Further, the exergoeconomic analysis is presented to examine the economic viability of the system which serves as a holistic solution for rural power generation. It is found that the total product unit cost of the system is 12.96 $/GJ and operating charges are 140.5 $/h. The proposed multigenerational system promises a Levelized cost of electricity at 5 ¢ /kWh. The net overall electricity generated by the system is 1432 kW and provides 200 kW of space thermal heating. In addition, hot air is produced at the rate of 9720 kg/h for different agricultural drying applications.

这项工作提出了一种基于热电联产 (CHP) 系统与同时充放电型储热罐集成的新颖且可持续的解决方案。多联产系统使用沼气作为热源，并从热力学、火用经济和环境角度进行分析。提议的配置旨在满足 20 个村庄的电力需求、温室供暖和农业干燥应用的热空气生产。来自沼气涡轮机的废气用于为再压缩超临界 CO _{2提供动力}和蒸汽朗肯循环。额外的剩余热量存储在同时充电/放电型储热罐内，为产沼气的微生物提供有利的条件（50-55°C）以最大限度地提高产气量。内消旋赤藓糖醇（糖醇）因其高潜热和大过冷度（>60°C）被用作相变材料，适用于目前的应用。在热通量差示扫描量热仪 (DSC) 上对 PCM 进行了表征，并对热物理特性进行了评估。此外，还提出了 exergoeconomic 分析，以检查该系统的经济可行性，该系统可作为农村发电的整体解决方案。发现系统的总产品单位成本为 12.96 美元/GJ，运行费用为 140.5 美元/小时。拟议的多代发电系统承诺电力成本为 5 美分/千瓦时。该系统产生的净总电力为 1432 千瓦，并提供 200 千瓦的空间供热。此外，热空气以 9720 kg/h 的速度产生，用于不同的农业干燥应用。