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Performance of a coil-pipe heat exchanger filled with mannitol for solar water heating system

机译:线圈管热交换器的性能填充甘露醇用于太阳能水加热系统

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Solar water heating systems that incorporate latent heat storage unit deals with instabilities of insolation. But most previous studies focus on phase change materials (PCMs) with phase change temperature (T_m) below 80 °C. In this study, we investigate the performance of mannitol (Tm: 166.7, enthalpy of phase change γ: 323 kJ kg~(-1)) in storing solar thermal energy and producing hot water. Results show mannitol can store high-level energy and the thermal energy storage performance are affected by the inlet flow rate and temperature of heat transfer fluid. 14kg mannitol with latent heat activated can heat 100L water from 30 up to 50 °C in 6 hours
机译:太阳能水加热系统,包括潜热储存单元的销售情况造成不稳定性。 但是,最先前的研究专注于相变材料(PCM)的相变温度(T_M)低于80°C。 在这项研究中,我们研究了甘露醇的性能(TM:166.7,相变γ:323kJ kg〜(-1)的性能,在储存太阳能热能并产生热水。 结果显示甘露醇可以存储高级能量,热能存储性能受到热传递流体的入口流速和温度的影响。 14kg甘露醇具有潜热活化的溶液可以在6小时内从30℃加热100L水。

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