通过数学模型的建立与求解,分析吸气预处理涉及的压缩机吸气温度、含湿量和压力对压缩机能耗、比功率以及输气量的影响规律,旨在为吸气预处理换热器的设计提供理论依据。研究结果表明:当吸气温度每降低1℃,空压机比功率降低0.06 k W/(m^...通过数学模型的建立与求解,分析吸气预处理涉及的压缩机吸气温度、含湿量和压力对压缩机能耗、比功率以及输气量的影响规律,旨在为吸气预处理换热器的设计提供理论依据。研究结果表明:当吸气温度每降低1℃,空压机比功率降低0.06 k W/(m^(3)/min),输气量升高0.182 m^(3)/min;吸气含湿量对空压机比功率的影响与吸气温度相当,但除去每克水蒸气所需冷能约是空气单位温降的2.4倍;吸气压力每降低1 k Pa可抵消约2.67℃吸气温降带来的节能效果;因此吸气预处理换热器冷源温度不宜低于空气露点温度,需通过合理的结构设计降低吸气预处理导致的压力损失。展开更多
A C-band RF pulse compressor is in development at SINAP It comprises of two resonant cavities,two mode convertors and a 3 dB power divider.TE_(0.1.15)mode is selected for obtaining higher quality factor Q_0 of the RF ...A C-band RF pulse compressor is in development at SINAP It comprises of two resonant cavities,two mode convertors and a 3 dB power divider.TE_(0.1.15)mode is selected for obtaining higher quality factor Q_0 of the RF pulse compressor cavities,so that the power gain factor can be 3.2,which is supposed to multiply the RF power from 50 MW to 1 60 MW.In this paper,we report our work on C-band RF pulse compressor,namely the design simulation and cold test results.展开更多
This paper is an eye opening to the new horizon of the design of operational Compressors in our jet engines. That are compressors usually perform an operation called isentropic process and which levitate the pressure ...This paper is an eye opening to the new horizon of the design of operational Compressors in our jet engines. That are compressors usually perform an operation called isentropic process and which levitate the pressure and temperature to the optimum level which require for effective ignition. Basically, our compressors have several sets of blades to perform this function, more precisely saying Rotor and stator blades. Where rotor blade provides air molecule to push at very high velocity to the Stationary blade and when the air Enders to the Stator, the stator races its pressure to move on to the next stage. And we call this set of Stator and rotor as a stage ref [1]. However, in this work, I consider the geometry of the incoming air molecule and how it transforms its physical quantities such as Pressure and temperature ref [2]. For that I tie the concept of Thermodynamic and mechanics on the platform of Tensor analysis ref [3]. That is, I consider the quantities like Pressure, Temperature and rate of flow are their corresponding vector spaces and energy related quintets like heat, work as the scaling elements on the above vector space. And quantities such as entropy enthalpy and specific heat capacity are corresponding physics of it. Considering the advantages, one of the important advantages of this approach is the applicability of results of this work to the formulation of blade less compression Example: Ram and Scram jet engine. Again, the relevant upgrading which is essential for future hypersonic air crafts can achieve from this study and this will be a mile stone for bright air and space travel. To conclude, this approach will be a great transformation on the conventional idea for realization of compression for operational Scram and Ram jet engines ref [4] [5].展开更多
文摘通过数学模型的建立与求解,分析吸气预处理涉及的压缩机吸气温度、含湿量和压力对压缩机能耗、比功率以及输气量的影响规律,旨在为吸气预处理换热器的设计提供理论依据。研究结果表明:当吸气温度每降低1℃,空压机比功率降低0.06 k W/(m^(3)/min),输气量升高0.182 m^(3)/min;吸气含湿量对空压机比功率的影响与吸气温度相当,但除去每克水蒸气所需冷能约是空气单位温降的2.4倍;吸气压力每降低1 k Pa可抵消约2.67℃吸气温降带来的节能效果;因此吸气预处理换热器冷源温度不宜低于空气露点温度,需通过合理的结构设计降低吸气预处理导致的压力损失。
基金the Accelerator Laboratory of Tsinghua University for experiment supports
文摘A C-band RF pulse compressor is in development at SINAP It comprises of two resonant cavities,two mode convertors and a 3 dB power divider.TE_(0.1.15)mode is selected for obtaining higher quality factor Q_0 of the RF pulse compressor cavities,so that the power gain factor can be 3.2,which is supposed to multiply the RF power from 50 MW to 1 60 MW.In this paper,we report our work on C-band RF pulse compressor,namely the design simulation and cold test results.
文摘This paper is an eye opening to the new horizon of the design of operational Compressors in our jet engines. That are compressors usually perform an operation called isentropic process and which levitate the pressure and temperature to the optimum level which require for effective ignition. Basically, our compressors have several sets of blades to perform this function, more precisely saying Rotor and stator blades. Where rotor blade provides air molecule to push at very high velocity to the Stationary blade and when the air Enders to the Stator, the stator races its pressure to move on to the next stage. And we call this set of Stator and rotor as a stage ref [1]. However, in this work, I consider the geometry of the incoming air molecule and how it transforms its physical quantities such as Pressure and temperature ref [2]. For that I tie the concept of Thermodynamic and mechanics on the platform of Tensor analysis ref [3]. That is, I consider the quantities like Pressure, Temperature and rate of flow are their corresponding vector spaces and energy related quintets like heat, work as the scaling elements on the above vector space. And quantities such as entropy enthalpy and specific heat capacity are corresponding physics of it. Considering the advantages, one of the important advantages of this approach is the applicability of results of this work to the formulation of blade less compression Example: Ram and Scram jet engine. Again, the relevant upgrading which is essential for future hypersonic air crafts can achieve from this study and this will be a mile stone for bright air and space travel. To conclude, this approach will be a great transformation on the conventional idea for realization of compression for operational Scram and Ram jet engines ref [4] [5].
