Experimental study on absorption characteristics of a falling film absorber with micro-scale NH3/LiNO3 liquid film

Liang, Xiao; He, Guogeng; Wang, Jinyu; Zhou, Shenjie; Hao, Zian; Cai, Dehua

doi:10.1016/j.applthermaleng.2021.117719

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…However, the absorption of the above-mentioned metal-insulator-metal structure is unable to tune once the design is set, which limits its practical applications. Recently, flexibly tunable absorber has been developed through the initiation of external electronic field [10,11], magnetic field [12], temperature [13] or pressure [14]. For instance, Zhang et al suggested a graphene-based terahertz MA with external voltage [10].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber

Zhan

Fan

2023

Mater. Res. Express

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A tunable three band absorber has been proposed and investigated in the terahertz (THz) with graphene strips. Three perfect absorption is elaborately analyzed with the electrical field and the induced surface current distribution. Owing to the unique character of graphene, the position and intensity of three peaks are flexibly regulated with different Fermi energy and chemical potential. Meanwhile, an on to off modulation of the perfect absorption is achieved when the polarization angle varies from 0 to 90°, and the modulation degree of three resonant peaks can simultaneously approach 100%, which are much higher than the previous work. Moreover, the tunable absorption is examined with different geometry parameters and intermediate medium. Such highly tunable absorber with our proposed design has numerous application potential in the controllable optical switchers, filters, detectors, and sensors.

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Section: Introductionmentioning

confidence: 99%

Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber

Zhan

Fan

2023

Mater. Res. Express

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“…The necessity of realising such processes arises, for example, at intensification of absorption of gases by liquids when solving the problem of film absorption of carbon trace from the atmosphere or undesirable impurities from technological and medical gases. In addition, similar problems need to be solved in the dispersion of liquids, heat removal from heated radiators, drying of formed coatings, removal of ice and foreign coatings [18][19]. In particular, when solving the problems of de-icing or drying of solid sheet materials, it is necessary to realise the impact with the highest possible power and also with the largest possible area.…”

Section: Introductionmentioning

confidence: 99%

Design of process equipment exposure sources for ultrasonic absorption of greenhouse gases

Khmelev,

Golykh,

Tsyganok

et al. 2023

E3S Web Conf.

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The work aims at improving the efficiency of greenhouse gas utilisation processes, namely carbon dioxide. The principle of operation of the designed equipment is to realise the process of ultrasonic absorption (absorption of gas by liquid) when carbon dioxide is fed over the surface of the liquid, in which cavitation occurs. The source of the cavitation action is a plate that oscillates with a given frequency and amplitude. The efficiency of the ultrasonic gas absorption process is determined by the parameters of plate oscillations. In particular, to ensure the necessary and sufficient amplitude of plate oscillations and uniformity of its distribution along the plate, it is proposed to solve the problem of optimal placement of the required number of ultrasonic emitters of a given size. As a criterion of optimality, it is proposed to use the integral power of oscillations of the whole plate, formed by a certain number of emitters. The proposed and developed numerical model of oscillation formation in the plate is based on the solution of the biharmonic equation for the distribution of amplitudes of oscillations, taking into account the finiteness of its thickness and provides the choice of the number, location, and size of ultrasonic emitters required to solve a particular problem. The simulation results allowed us to establish that the optimal location of the emitters depends on specific characteristics that must be taken into account when solving the problem of optimising the size and location of ultrasonic emitters for each particular plate. The calculations showed high efficiency of the created model and the possibility of its practical application for solving the problems of utilisation of greenhouse gas emissions in agriculture.

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Numerical investigation on heat and mass transfer characteristics of inclined plate falling film absorption with nano-lithium bromide solution

Wang,

Li,

Yan

et al. 2024

Applied Thermal Engineering

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Experimental study on absorption characteristics of a falling film absorber with micro-scale NH3/LiNO3 liquid film

Cited by 5 publications

References 39 publications

Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber

Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber

Design of process equipment exposure sources for ultrasonic absorption of greenhouse gases

Numerical investigation on heat and mass transfer characteristics of inclined plate falling film absorption with nano-lithium bromide solution

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