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中文摘要：
对强制循环全玻璃真空管太阳能热水系统和强制循环热管式真空管太阳能热水系统的瞬时效率进行了对比分析，发现全玻璃真空管热水系统的效率曲线的斜率大于热管式真空管热水系统，这说明两种热水系统在运行温度相同时，热管式真空管的热损失较小，瞬时效率较高，有较好的高温特性和保温特性，并且热管式真空管太阳集热器的集热效率波动较小，能稳定在较高的水平。
英文摘要：
By comparing the forced circulation all-glass vacuum tube solar water heating systems with the forced circulation heat pipe vacuum tube solar water heating system for instantaneous efficiency, it is found that the efficiency curve slope of all-glass vacuum tube hot water system is greater than that of vacuum tube heat pipe hot water system. It indicates when the operating temperature of two hot water systems is the same, the heat pipe vacuum tube has smaller heat losses, higher transient efficiency, better high-temperature characteristics and thermal insulation properties.
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