Fluid Flow Measurement in Astronauts’ Life Support Systems

Мурашкина, Т. И.; Истомина, Т. В.; Badeeva, E. A.; Serebrjakov, D. I.; Yurova, O. V.; Udalov, A.Yu.; Shachneva, E. A.

doi:10.1007/s10527-016-9552-z

Cited by 9 publications

(4 citation statements)

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“…The light fluxes Ф01 and Ф02 from the RS according to the LFO1 and LFO2 are sent to the measuring zone to the first and second reflecting surfaces of the plate, respectively. As the angle α is varied, the intensities of the reflected light fluxes Φ1(α) and Φ2(α), respectively, change [4][5][6].…”

Section: Fig1 Structural and Analytical Scheme Of Foslfp Parametersmentioning

confidence: 99%

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Development, research and metrological analysis of the measuring channel of a fiber-optic sensor for fluid flow parameters used in information-measuring systems

et al. 2018

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The article proposes a device for measuring parameters of liquid flows (volume and velocity) (FOSLFP). A physico-mathematical model of optical signal conversion in a fiber-optic flux transducer of the proposed sensor is developed, in which the perceiving element is a truncated cylinder mounted on the inner surface of the bellows, experiencing angular bending during measurements. The conversion of optical signals is carried out using a two-way mirror plate mounted on the outer surface of the bellows in an open fiber optical channel. A circuit-analytical model of a new variant of a differential circuit for converting optical signals to a FOSLFP was developed, in accordance with which a metrological model of the sensor was developed to determine the possible sources of measurement errors. The nominal and real functions of the FOSLFP transformation were derived, the additive and multiplicative components of the errors of the two measuring channels of the sensor and the ways to reduce them were determined.

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Section: Fig1 Structural and Analytical Scheme Of Foslfp Parametersmentioning

confidence: 99%

“…To determine the possible sources of measurement errors and to find ways to reduce them, a metrological analysis of the FOSLFP channel was carried out. For this, a metrological structural scheme of the sensor was developed [7][8].…”

Section: Fig1 Structural and Analytical Scheme Of Foslfp Parametersmentioning

confidence: 99%

Development, research and metrological analysis of the measuring channel of a fiber-optic sensor for fluid flow parameters used in information-measuring systems

et al. 2018

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“…A Life Support System (LSS) is an ensemble of devices and structures that ensure the conditions inside a spacecraft or base necessary for living, such as drinking water, oxygen, hygiene, food, waste disposal, ionizing radiation protection, and thermal insulation. 1 The Water Recovery System (WRS) collects, filters, purifies, and sterilizes water. In general, the goal of a WRS is not only to store water but also to produce drinking water from non-potable sources, particularly washing water, flushing water, fecal fluids, urine, and exhaled breath condensate.…”

Section: Introductionmentioning

confidence: 99%

Dialysis-based Passive Biocide Delivery System: An Exploratory Analysis on the Development of a Silver Dosing Alternative for Spacecraft Potable Water Systems

Garcia Fernandez

2024

Preprint

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This paper describes the use of a dialysis-based passive dosing system for silver ion delivery as a biocide for potable water systems in spacecraft and extraterrestrial bases. A silver dosing device has been developed for continuous water treatment, based on the International Space Station Water Processor Assembly framework. The Passive Biocide Delivery System is designed to supply a stream of product water with silver ions at a concentration range of 200-400 ppb, using a membrane to control dosing. Potable water with these silver concentrations can be safely consumed by humans. The dialysis approach is attractive since it does not require additional energy nor high pressure to function. Computational Transport Phenomena has been implemented to study the performance of the membrane setup at particular operational conditions and guide the choice of membrane properties. The results suggest that the dosing device can release silver ions at the target levels for at least eight hours without excessive silver salt consumption. This paper contains technical background and preliminary results from the Passive Biocide Delivery System development and presents the benefits and challenges of its implementations in spacecraft and Lunar/Martian bases.

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“…[67][68][69][70] Accurate measurement of flow parameters can save the cost of materials and improve the quality of products, which could effectively increase economic benefits. Flow measurement is an important part of modern measurement technology, which is of great scientific significance to the development of automation in modern industry, especially in the fields of petrochemical, [71][72][73][74][75][76] biomedical, [77][78][79][80][81] energy metering [82][83][84][85][86][87][88] and pipeline safety monitoring, [89][90][91][92] showing a wide range of application prospects. At present, according to different measurement principles, the types of flow sensors can be mainly divided into volumetric type, [93][94][95] turbine type, [96,97] differential pressure type, [98,99] ultrasonic type, [100,101] and float type.…”

Section: Introductionmentioning

confidence: 99%

Advances in Triboelectric Flow Sensor

Zou,

Wang,

et al. 2023

Adv Materials Technologies

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With the rapid development of advanced materials and manufacturing technologies, flow sensors have made significant progress in the field of mechanical engineering, which could cater to the development trend of the Internet of Things (IoT) and the ongoing Fourth Industrial Revolution. However, traditional power supply modes such as lithium batteries require regular recharging or replacement, which greatly causes too much inconvenience and maintenance consumption, and may also pose potential risks to the marine environment. The triboelectric nanogenerators (TENGs), based on the coupling effect of contact electrification and electrostatic induction, have been demonstrated to convert mechanical movements of the fluid into electrical signals with various features such as flexibility, conformability, and user‐friendliness. This review systematically summarizes for the first time the fundamental working mechanism, rational structural design, and analysis of practical application scenarios of triboelectric flow sensor as an emerging technology for flow monitoring of the Industrial IoT. According to the different fluid objects monitored, the latest representative achievements of triboelectric flow sensors can be divided into gas flow sensors, liquid flow sensors, and two‐phase flow sensors. Finally, the current challenges and future development directions of triboelectric flow sensors are examined, which can promote the further development of the field of the flow sensors.

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Fluid Flow Measurement in Astronauts’ Life Support Systems

Cited by 9 publications

References 0 publications

Development, research and metrological analysis of the measuring channel of a fiber-optic sensor for fluid flow parameters used in information-measuring systems

Development, research and metrological analysis of the measuring channel of a fiber-optic sensor for fluid flow parameters used in information-measuring systems

Dialysis-based Passive Biocide Delivery System: An Exploratory Analysis on the Development of a Silver Dosing Alternative for Spacecraft Potable Water Systems

Advances in Triboelectric Flow Sensor

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