Data from 456 surface meteorological sites in Alaska, eastern Russia and northwest Canada for 1979-2017 were used to model hourly universal thermal comfort indices (UTCIs) under consideration of Alaska-appropriate clo...Data from 456 surface meteorological sites in Alaska, eastern Russia and northwest Canada for 1979-2017 were used to model hourly universal thermal comfort indices (UTCIs) under consideration of Alaska-appropriate clothing. The results served to determine a high-resolution climatology of thermal comfort levels for Alaska at various temporal and spatial scales as well as the frequency of thermal stress levels. On 1979-2017 average, various degrees of cold stress occurred with highest percentage on the Alaska West Coast and along the Arctic Ocean. In the continental and Inside Passage region, no thermal stress had the highest percentage of occurrence. In Interior Alaska, both strong heat and extreme cold stress occurred occasionally. At most sites and in all Alaska Köppen-Geiger bio-climate regions, the absolute range between monthly means of daily minimum and maximum UTCIs was larger than that of monthly means of daily minimum and maximum air temperatures. Major contributors to thermal discomfort (shortwave radiation, air temperature, moisture, wind speed) varied among bio-climate regions and in the diurnal and annual courses.展开更多
蓄热电采暖因其用电时段可调、运行经济灵活,已经成为西北地区冬季取暖期重要的灵活性调节资源。合理地规划蓄热电采暖容量可以有效提高风电消纳水平,提升系统的运行经济性。为此,该文提出一种考虑热舒适度弹性和提升风电消纳的蓄热电...蓄热电采暖因其用电时段可调、运行经济灵活,已经成为西北地区冬季取暖期重要的灵活性调节资源。合理地规划蓄热电采暖容量可以有效提高风电消纳水平,提升系统的运行经济性。为此,该文提出一种考虑热舒适度弹性和提升风电消纳的蓄热电采暖双层优化配置方法。通过引入热感觉平均标度预测(predicted mean vote,PMV)指标来量化用户的热舒适度,根据热舒适度弹性的限定范围确立热平衡区间约束。在分别分析系统风电消纳以及热舒适度弹性对蓄热电采暖容量配置的影响的基础上,建立兼顾风电消纳和热舒适度弹性的蓄热电采暖双层优化配置模型。上层以风电供热系统年化总成本最小为目标,下层以系统典型日运行成本最小为目标,通过上下层迭代求解蓄热电采暖最优容量配置以及系统运行方案。最后,基于实际算例验证了所提的蓄热电采暖配置方法可在保证供暖舒适度的基础上提升风电消纳水平和系统整体经济性。展开更多
文摘Data from 456 surface meteorological sites in Alaska, eastern Russia and northwest Canada for 1979-2017 were used to model hourly universal thermal comfort indices (UTCIs) under consideration of Alaska-appropriate clothing. The results served to determine a high-resolution climatology of thermal comfort levels for Alaska at various temporal and spatial scales as well as the frequency of thermal stress levels. On 1979-2017 average, various degrees of cold stress occurred with highest percentage on the Alaska West Coast and along the Arctic Ocean. In the continental and Inside Passage region, no thermal stress had the highest percentage of occurrence. In Interior Alaska, both strong heat and extreme cold stress occurred occasionally. At most sites and in all Alaska Köppen-Geiger bio-climate regions, the absolute range between monthly means of daily minimum and maximum UTCIs was larger than that of monthly means of daily minimum and maximum air temperatures. Major contributors to thermal discomfort (shortwave radiation, air temperature, moisture, wind speed) varied among bio-climate regions and in the diurnal and annual courses.
文摘蓄热电采暖因其用电时段可调、运行经济灵活,已经成为西北地区冬季取暖期重要的灵活性调节资源。合理地规划蓄热电采暖容量可以有效提高风电消纳水平,提升系统的运行经济性。为此,该文提出一种考虑热舒适度弹性和提升风电消纳的蓄热电采暖双层优化配置方法。通过引入热感觉平均标度预测(predicted mean vote,PMV)指标来量化用户的热舒适度,根据热舒适度弹性的限定范围确立热平衡区间约束。在分别分析系统风电消纳以及热舒适度弹性对蓄热电采暖容量配置的影响的基础上,建立兼顾风电消纳和热舒适度弹性的蓄热电采暖双层优化配置模型。上层以风电供热系统年化总成本最小为目标,下层以系统典型日运行成本最小为目标,通过上下层迭代求解蓄热电采暖最优容量配置以及系统运行方案。最后,基于实际算例验证了所提的蓄热电采暖配置方法可在保证供暖舒适度的基础上提升风电消纳水平和系统整体经济性。
