Heat-transfer regularities of the anemometric wire

Михеев, Н. И.; Sakhovsky, A. V.; Khairnasov, K. R.; Kratirov, D. V.

doi:10.1134/s0869864310020022

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…This type of anemometer has gained widespread acceptance in both research and industrial applications owing to its accuracy, reliability, and operational convenience [9]- [13]. While computer simulations have been instrumental in studying the behavior of hot-wire anemometers under various conditions [14]- [17], recent advancements in the field call for attention. Scholars have delved into visualizing and analyzing scenarios involving different forms of hot wires in diverse environmental conditions [18]- [21].…”

Section: Introductionmentioning

confidence: 99%

An assembled hot wire anemometer design

Yao,

Shen,

Zheng

et al. 2024

J. meas. eng.

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The hot wire anemometer is a widely utilized device in laboratory settings for measuring air speed. This paper investigates the relationship between air speed and hot wire temperature across various air speed ranges, employing the theory of thermal equilibrium. We designed a measurement circuit and hot wire shape based on the hot wire anemometer principle, and validated the linear relationship between current and temperature at different air speeds within an adjustable air speed field. The measured current serves as a representative of air speed. Experimental validation of the designed hot wire anemometer demonstrates accurate measurement results that align with theoretical values across different air speed ranges. Finally, we determined the sensitivity of the anemometer in various measurement ranges, considering the instrument's uncertainty and measurement formula.

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Section: Introductionmentioning

confidence: 99%

An assembled hot wire anemometer design

Yao,

Shen,

Zheng

et al. 2024

J. meas. eng.

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show abstract

“…A hot-wire anemometer can be simulated by computer modeling, which allows the study of the device and its behavior under various conditions. Such simulations allow engineers to gain insight into the performance of the device in different environments and thus design anemometers more effectively [14][15][16][17]. Many scholars have visualized and analyzed scenarios of different forms of hot wires in different environments [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A assembled hot wire anemometer design

Yao

Shen

Zheng

et al. 2023

Preprint

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The hot wire anemometer is a commonly used device for measuring air speed in laboratories. In this paper, the relationship between air speed and temperature in different air speed ranges was analyzed based on the theory of thermal equilibrium. A measurement circuit and hot wire shape were designed based on the principle of the hot wire anemometer, and the linear relationship between current and temperature in the hot wire at different air speeds was verified in an adjustable air speed field. The measured current was used to represent air speed. The designed hot wire anemometer was experimentally validated to provide measurement results that match the theoretical values in different air speed ranges. Finally, the sensitivity of the anemometer in different measurement ranges was determined based on the uncertainty of the instrument's sensitivity and the measurement formula.

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Application peculiarities of the high-temperature fluids containing nanoparticles in gas-tube boilers

Slobodina

Михайлов

2020

J. Phys.: Conf. Ser.

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The paper considers the application peculiarities of the high-temperature fluids containing nanoparticles in gas-tube boilers. The classification of nanofluids obtaining methods is presented, one-step and two-stepmethods for preparing the product are considered. The main thermophysical properties of materials are described. The values of the thermal conductivity coefficient for some materials that are usually used as the base ones for mixing liquids and nanoparticles are represented. The mechanisms of heat transfer in nanofluids in the forced and free convection and boiling processes determining the gas-tube boiler efficiency are considered. Criteria dependences of calculating the heat transfer in the free and forced convection and boiling when nanofluids flowing through the heat generators are proposed. It is proved that when adding nanoparticles to the base liquid, an increase in the heat transfer coefficient will be observed if its thermal conductivity is increased. Besides, the convective heat transfer is affected by the density and viscosity of the nanofluid. When the liquid boils, the critical heat flux increases, and the determining factor of the heat transfer coefficient is the particles concentration. The represented data are prerequisites of developing the efficient gas-tube boiler with a high-temperature fluid.

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Heat-transfer regularities of the anemometric wire

Cited by 6 publications

References 3 publications

An assembled hot wire anemometer design

An assembled hot wire anemometer design

A assembled hot wire anemometer design

Application peculiarities of the high-temperature fluids containing nanoparticles in gas-tube boilers

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