农业产业园区规划是实现农业产业园区用能低碳灵活的基础,而生物质资源高值化利用和农业柔性负荷对于促进农业产业园区的合理规划十分重要。因此,该文提出了一种考虑生物质能和农业柔性负荷的农业产业园区综合能源系统(integrated energ...农业产业园区规划是实现农业产业园区用能低碳灵活的基础,而生物质资源高值化利用和农业柔性负荷对于促进农业产业园区的合理规划十分重要。因此,该文提出了一种考虑生物质能和农业柔性负荷的农业产业园区综合能源系统(integrated energy system,IES)规划方法。首先,为实现秸秆高值化利用,引入热解气化炉生产生物质气和生物炭,并通过高厌氧发酵粪污制沼,实现生物质的充分利用。其次,引入农作物日积温作为确定种植业热负荷参与需求响应量的衡量指标,并结合农业负荷特性建立农业柔性负荷模型。然后,以园区投资运行总成本最小为优化目标,考虑设备投资约束和满足农业生长需求的农业用能约束及生物质能成本等运行约束,建立农业产业园区规划模型。随后,为减小天气概率分布不确定性对农业生产和园区供能的影响,基于历史天气数据生成盒式不确定性集合,构建农业产业园区IES分布鲁棒优化模型。最后,通过算例结果分析得出,该文所提的农业产业园区IES规划方法可以显著减少碳排放和系统总成本,并充分利用生物质资源。展开更多
Exploring the scale-effect of different land use types on the distribution pattern of urban park green space(PGS)at multiple grid scales would inform rational allocation and efficient collaborative construction of urb...Exploring the scale-effect of different land use types on the distribution pattern of urban park green space(PGS)at multiple grid scales would inform rational allocation and efficient collaborative construction of urban development land at different scales.Selecting 300-m,500-m,1,000-m,and 2,000-m grid scales,the research employed Create Fishnet tool in ArcGIS and Geodetector to construct a scale-effect analysis framework that revealed the scale-effects of different land use types on the distribution pattern of PGS at multiple grid scales in the main urban area of Nanjing,China in 2006,2012,and 2017.Main research results are:1)the overall distribution pattern of PGS showed the evolution characteristics from polarization to advancing quality and efficiency,while the trend gradually weakened with the increase of grid scale;2)the scale-effect of other land use types on PGS increasingly enhanced-the larger the grid scale,the more obvious the synergistic or compressive effect;3)the interactive scaleeffects of different land use types gradually enhanced-the larger the grid scale,the more significant the overall factor interaction;and 4)at the 300-m grid scale,the major interaction factors were residential,transportation,industrial/manufacturing,water area,and administration/public services,which gradually changed to residential,water area,and administration/public services up to the 2,000-m grid scale.The findings of this paper are expected to deepen the theory of the coupling between PGS and other land use types,as well as provide scientific support and a basis for efficient allocation,spatial layout optimization,and sustainable development of urban spaces.展开更多
文摘农业产业园区规划是实现农业产业园区用能低碳灵活的基础,而生物质资源高值化利用和农业柔性负荷对于促进农业产业园区的合理规划十分重要。因此,该文提出了一种考虑生物质能和农业柔性负荷的农业产业园区综合能源系统(integrated energy system,IES)规划方法。首先,为实现秸秆高值化利用,引入热解气化炉生产生物质气和生物炭,并通过高厌氧发酵粪污制沼,实现生物质的充分利用。其次,引入农作物日积温作为确定种植业热负荷参与需求响应量的衡量指标,并结合农业负荷特性建立农业柔性负荷模型。然后,以园区投资运行总成本最小为优化目标,考虑设备投资约束和满足农业生长需求的农业用能约束及生物质能成本等运行约束,建立农业产业园区规划模型。随后,为减小天气概率分布不确定性对农业生产和园区供能的影响,基于历史天气数据生成盒式不确定性集合,构建农业产业园区IES分布鲁棒优化模型。最后,通过算例结果分析得出,该文所提的农业产业园区IES规划方法可以显著减少碳排放和系统总成本,并充分利用生物质资源。
文摘Exploring the scale-effect of different land use types on the distribution pattern of urban park green space(PGS)at multiple grid scales would inform rational allocation and efficient collaborative construction of urban development land at different scales.Selecting 300-m,500-m,1,000-m,and 2,000-m grid scales,the research employed Create Fishnet tool in ArcGIS and Geodetector to construct a scale-effect analysis framework that revealed the scale-effects of different land use types on the distribution pattern of PGS at multiple grid scales in the main urban area of Nanjing,China in 2006,2012,and 2017.Main research results are:1)the overall distribution pattern of PGS showed the evolution characteristics from polarization to advancing quality and efficiency,while the trend gradually weakened with the increase of grid scale;2)the scale-effect of other land use types on PGS increasingly enhanced-the larger the grid scale,the more obvious the synergistic or compressive effect;3)the interactive scaleeffects of different land use types gradually enhanced-the larger the grid scale,the more significant the overall factor interaction;and 4)at the 300-m grid scale,the major interaction factors were residential,transportation,industrial/manufacturing,water area,and administration/public services,which gradually changed to residential,water area,and administration/public services up to the 2,000-m grid scale.The findings of this paper are expected to deepen the theory of the coupling between PGS and other land use types,as well as provide scientific support and a basis for efficient allocation,spatial layout optimization,and sustainable development of urban spaces.
