Field Measurement of Convective Heat Transfer on External Surface of Building Using Naphthalene Sublimation Method 应用萘升华法实测建筑外表面对流换热
A mathematics model and its heat and mass transfer analysis of the freeze drying sublimation process 冷冻干燥升华过程数学模型传热传质机理
The effect of attack angle θ, shape angle β and span Δ y of a vortex generator on the local heat transfer performance of in-line arranged round tube fin elements were studied with naphthalene sublimation mass/ heat analogy experiment. 通过萘升华传质/传热比拟实验,研究了涡产生器攻角θ、形状角β及跨局Δy对顺排圆管管片式板芯传热特性的影响。
A simplification for Sheng and Peck's freeze-drying model with heat radiation has been made in this paper. Linear distribution of temperature within the dried layer during sublimation is assumed instead of the error function profile proposed by Sheng and Peck. 对Sheng和Peck的辐射传热冷冻干燥模型进行简化,将该模型中升华阶段物料干燥层的误差函数温度分布近似为线性分布。
The freeze drying model on the basis of heat transfer processes for tomatoes subject to radiation boundary conditions was founded to predict the time of sublimation dehydration. 认为番茄冻干过程为传热控制,建立了辐射边界的准稳态模型,利用该模型可以较准确的预测升华干燥的时间。
The match of cryotrap and desiccator, the way of heat transfer on heating board, and heat system design were analyzed to solve the problems of design, manufacturing technique, and structure of the food freeze sublimation drying equipments in the freeze-dried food production process. 针对目前食品真空冷冻干燥设备的设计、制造技术与结构问题,结合真空冷冻干燥食品的加工生产实际对冷阱与干燥炉配合、加热棚板的传热方式、加热系统设计等进行了研究分析。
The above phenomena may be caused by sensible heat from ground surface and by latent heat of precipitation and sublimation. 这是由于地面感热加热和降水潜热加热作用不同所造成的。
An experimental study was performed of the enhanced heat transfer of the plane plates in the rectangle longitudinal vortex generator in a suction-type wind tunnel using heat and mass to analogize the naphthalene sublimation technique. 利用热质比拟萘升华技术,在吸入式风洞中对矩形纵向涡发生器平板强化换热进行了实验研究。
The foundation of damp heat pathological mechanism in coronary heart disease, gave a reasonable and approving explanation to lots of clinical experiences and research results, was a sublimation from perceptual experience to rational cognition, and it also provided a new way for developing Chinese traditional medicine. 对冠心病湿热病机及相关理论的确立,使大量的临床经验和科研成果得到合理的、完满的解释,从感性经验升华为理性认识,为中药开发开辟了新的途径。