19 research outputs found

    Advance in Pyrolysis and Gasification of Combustible Solid Waste and Engineering Simulation Study

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    简要介绍了目前国内城市生活垃圾的产生现状及其主要的处理方法。概述了典型可燃固体废弃物的热解气化实验进展和基于AspenPlus平台模拟的研究现状以及热解气化技术的应用情况。分析总结了热解温度和加热速率对热解产物分布及其产量的影响,以及空气燃料比和气化温度对气化过程的影响。基于AspenPlus平台的热解气化模型能够很好地模拟实际热解气化过程,具有较好的可靠性和实用性。指出可燃固废热解气化实验今后的研究重点及AspenPlus平台模拟研究的着重考虑因素

    Influence of pyrolysis temperature on biochar stability and leaching properties of nutrients contained in biochar

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    The biochar was produced from sewage sludge by pyrolysis at 300, 500 and 700℃. In this study the biochar degradation rate represented by CO2 release rate through alkali absorption method in microbial incubation was investigated and the half-life using a

    热解温度对污泥生物炭稳定性及养分淋溶特性影响

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    以市政污泥为原料,在300、500、700℃条件下热解制备得到污泥生物炭。采用碱液吸收法测定生物炭在培养环境下的CO2释放速率以表征其降解速率,并采用预测模型计算得到生物炭的半衰期。以去离子水为浸提剂考察了生物炭中可溶性养分含量及其淋溶特性。结果表明:在300~700℃范围内,较高温度下制备的生物炭降解缓慢,稳定性更强,可在自然环境中长期存在,具有更好的固碳效果;较低温度下制备的生物炭中水溶性氮、水溶性钾含量更高,但水溶性磷含量更低;生物炭中养分的淋溶效果与其可溶性养分含量一致,较低温度下制备的生物炭的淋溶液中水溶性氮、水溶性钾含量较高,水溶性磷含量较低

    城市生活垃圾两段热解旋流燃烧装置数值模拟

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    为了实现城市生活垃圾的无害化处置,提出了两段热解旋流燃烧装置。该装置的关键技术在于燃烧室内增加了一螺旋体。通过对燃烧室的数值模拟,确定了螺旋体的结构参数,并考察了螺旋体对气相燃烧温度场、烟气平均停留时间和组分浓度分布的影响。结果表明:增加螺旋体后,燃烧室内气体混合均匀,燃烧完全,燃烧情况优于无螺旋体时,满足抑制二噁英的要求

    Numerical Simulation of the Two-stage Pyrolysis Swirling Combustion Devices of Municipal Solid Waste

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    In order to realize harmless disposal of Municipal Solid Waste(MSW),the two-stage pyrolysis swirling combustion devices is put forward.The key technology of the device is that the combustion chamber adds a helix.Through the numerical simulation of the co

    Research on the Coordination Development between Ecological Civilization Construction and Energy, Economy, Environment, Ecology

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    There are complicatedly interdependent and interactional relationships in Energy-Economy- Environment-Ecology(4E) compounded system, and the coordinated development of 4E system is the final goal of sustainable social development. In this paper, on the b

    Concept and Study of the Novel Variable Capacity Air-conditioning System

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    针对冷暖空调在夏季制冷和冬季制热运行时,由于室内室外工况差异大而造成系统效率低的情况,本文提出了一种新的可变容量空调系统。该系统在传统空调系统中压缩机排气(或者吸气)的位置接入可变容积的变容装置,通过改变装置的容积吸入或者吐纳制冷剂到循环系统中,以改善制冷剂在不同工况下的循环效率。为了对该可变容量空调系统进行探究,利用焓差实验室对搭建的系统进行了实验研究。实验在室内干湿球温度为27℃/19℃的情况下,测试了系统在室外干球温度29℃和35℃的变容特性。结果表明,在不同的工况下,改变变容装置的容积,调整参与系统循环的制冷剂的质量,有利于提高系统在不同工况下的能效

    Analysis of China's Energy Development and Transformation in the Context of Ecological Civilization

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    Energy is the premise and foundation for the evolution of human society civilization, and its development plays an important role in ecological civilization construction. Meanwhile, the innovation of energy production and utilization modes are also the k

    新型可变容量空调系统的理论与实验研究

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    针对冷暖空调在夏季制冷和冬季制热运行时,由于室内室外工况差异大而造成系统效率低的情况,本文提出了一种新的可变容量空调系统。该系统在传统空调系统中压缩机排气(或者吸气)的位置接入可变容积的变容装置,通过改变装置的容积吸入或者吐纳制冷剂到循环系统中,以改善制冷剂在不同工况下的循环效率。为了对该可变容量空调系统进行探究,利用焓差实验室对搭建的系统进行了实验研究。实验在室内干湿球温度为27℃/19℃的情况下,测试了系统在室外干球温度29℃和35℃的变容特性。结果表明,在不同的工况下,改变变容装置的容积,调整参与系统循环的制冷剂的质量,有利于提高系统在不同工况下的能效
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