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江水源热泵区域供能系统成本分析
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作者 王本栋 张华玲 刘洪磊 《制冷与空调(四川)》 2016年第6期705-711,共7页
目前对区域供能的研究基本上是着眼于建筑能量消耗的多少而忽略了所消耗能源的品质,实际建筑的耗能与能量的品质关系密切,基于热力学第二定律的分析方法能更好地反映区域系统的耗能状况。在对分析和经济学研究的基础上,利用成本... 目前对区域供能的研究基本上是着眼于建筑能量消耗的多少而忽略了所消耗能源的品质,实际建筑的耗能与能量的品质关系密切,基于热力学第二定律的分析方法能更好地反映区域系统的耗能状况。在对分析和经济学研究的基础上,利用成本分析方法,建立江水源热泵区域功能系统成本分析模型。以实际的区域供能项目为背景,对江水源热泵热泵区域供能系统和常规水冷机组加锅炉系统进行成本对比分析,对江水源热泵区域供能系统的应用起到了指导意义。 展开更多
关键词 江水源热泵 常规空调系统 年度化分析 成本
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Long Term Sea Level Change and Water Mass Balance in the South China Sea 被引量:4
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作者 RONG Zengrui LIU Yuguang ZONG Haibo XIU Peng 《Journal of Ocean University of China》 SCIE CAS 2009年第4期327-334,共8页
Sea level anomalies observed by altimeter during the 1993-2006 period, thermosteric sea level anomalies estimated by using subsurface temperature data produced by Ishii and SODA reanalysis data, tide gauge records and... Sea level anomalies observed by altimeter during the 1993-2006 period, thermosteric sea level anomalies estimated by using subsurface temperature data produced by Ishii and SODA reanalysis data, tide gauge records and HOAPS freshwater flux data were analyzed to investigate the long term sea level change and the water mass balance in the South China Sea, The altime- ter-observed sea level showed a rising rate of (3.5±0.9)mmyr-1 during the period 1993-2006, but this figure was considered to have been highly distorted by the relatively short time interval and the large inter-decadal variability, which apparently exists in both the thermosteric sea level and the observed sea level. Long term thermosteric sea level from 1945 to 2004 gave a rising rate of 0.15±0.06 mmyr-1. Tide gauge'data revealed this discrepancy and the regional distributions of the sea-level trends. Both the 'real' and the ther- mosteric sea level showed a good correspondence to ENSO: decreasing during El Nino years and increasing during La Nina years. Amplitude and phase differences between the 'real' sea level and the thermosteic sea level were substantially revealed on both sea- sonal and interannual time scales. As one of the possible factors, the freshwater flux might play an important role in balancing the water mass. 展开更多
关键词 sea level change South China Sea thermosteric sea level mass exchange
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