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首页> 外文期刊>Building Services Engineering Research & Technology >Heating plant input-output efficiency in two cold-climate institutional buildings with condensing hot water boilers
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Heating plant input-output efficiency in two cold-climate institutional buildings with condensing hot water boilers

机译：两座带有冷凝式热水锅炉的冷气候机构建筑的供热厂投入产出效率

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摘要

Seasonal input-output efficiencies of two heating plants with condensing boilers in cold climate institutional buildings (3300 m~2 school and 12,000 m~2 university building) were evaluated. Plant efficiency remained about the same or declined with load, contrary to typical lab boiler ratings, which show efficiency increasing at lower loads. These results occurred when the boilers were operated with return water temperatures largely in the condensing range. Heating plant load was often 25% or less of the rated load of a single boiler, resulting in heating plant input-output efficiencies well below rated boiler efficiencies. Practical application: In-situ boiler plant input-output efficiencies can differ widely from manufacturer's boiler efficiency curves. For applications such as simulation for energy-efficient design, effective decision-making depends on accurately estimating real-world performance.
机译：评估了寒冷气候机构建筑物（3300 m〜2学校和12,000 m〜2大学建筑物）中两个带有冷凝锅炉的供暖厂的季节性投入产出效率。与典型的实验室锅炉额定值相反，电厂效率在负载下保持相同或下降，这表明在较低负载下效率会提高。当锅炉的回水温度在冷凝范围内时，就会出现这些结果。供热厂的负荷通常为单个锅炉额定负荷的25％或更少，导致供热厂的投入产出效率大大低于额定锅炉效率。实际应用：现场锅炉厂的投入产出效率可能与制造商的锅炉效率曲线相差很大。对于诸如节能设计仿真之类的应用，有效的决策取决于准确估计实际性能。

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