Experimental studies on convective heat transfer coefficient of water/ethylene glycol-carbon nanotube nanofluidsNanofluidheat transferCNTEGThe objective of the project is to study the enhancement of convective heat transfer of secondary refrigerants. It is the function of different volume fractions as well...
ivation of the factor 1/(1 À Y s ) can be found in [9,18]. In the process of water evaporation into air the water surface can be considered semi-permeable. The right hand side of Eqs. (1)–(4) shows that the mass flux at ...
Enhancements ofconvectiveheat transfer coefficient are different in the different positions of experimental pipeline. 在实验管道内的不同位置纳米流体对流换热系数的提高也是不同的. 互联网 The basic characteristics of gasconvectivediffusion of underground coal gasification ( UCG ) are studied. ...
aWe can do a lot in our daily life to achieve the goal of low carbon life. First, we’d better turn off lights if possible and spend less time watching TV or surfing the Internet. Saving water also matters much. Besides, we should sort out the rubbish, hoping that we might recycle ...
2.In particular,the problem of uncertainty of the convective heat transfer coefficient influenced by the coupled conv.描述了一种能够测量高温对流辐射环境下防护织物辐射系数的测试仪,综合考虑了对流、辐射换热的耦合影响,采用数值分析方法计算对流换热量,建立了基于虚拟仪器技术的系统测控平台,着重解决了封闭空间内...
(CNT nanofluids)with different mass concentration are performed in a horizontal stainless circular tube.The experimental results show that the convective heat transfer coefficient of CNT nanofluids is significantly enhanced compared with distilled water,and increases with increasing mass concentration and ...
This work presents a study of using the Wilson Plot method to determine the convective heat transfer coefficient (CHTC) of the following nanoparticles in water as the base fluid: SiO 2 , TiO 2 , and Al 2 O 3 . The experiments were carried out in a double layer concentric glass tube in...
The results indicate that the maximal enhancement coefficient θ is 224 when the flow rate of tube-side inlet is 0.1 m3/h. It is proved that, for the work medium of water, the convective heat transfer can be enhanced by applying high electric field. The performance of EHD-enhanced is sen...
average heat transfer coefficient β: coefficient of thermal expansion θ: non-dimensional temperature, (T −T1)/(T2 −T1) χ: thermal diffusivity λ: thermal conductivity v : kinematic viscosity ρ: density ψ: stream function, defined in Eq.(2) Ψ: non-dimensional stream func...
Rising damp is common in brick buildings due to groundwater and natural precipitation, which not only causes deterioration of the walls, but also significantly affects the heat transfer coefficient, thermal inertia, and building energy c... ZY Kong,HR Xie,YK Cai,... - 《Journal of Physics Co...