Experimental study on dynamic behavior of mechanically pumped two-phase loop with a novel accumulator in simulated space environment

Meng, Qingliang; Tao, Zhang; Yu, Feng; ZY, Yu; Zhao, Zhiyuan; ZHOU, Zhenhua

doi:10.1016/j.cja.2022.06.004

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…The system has a two-phase, temperature-controlled reservoir with passive cooling as the temperature-control component, and nine heat sources to simulate distributed instruments on a spacecraft. The feasibility and stability of the two-phase fluid loop system was verified based on data monitoring results during the experiments, including startup of the preheater, start-up and shut-down of the heat source, normal operation of the heat source, and power change conditions [31,32] .…”

Section: Pumped Two-phase Fluid Loop Systemsmentioning

confidence: 99%

Application and prospect of the fluid cooling system of solar arrays for probing the Sun

Bao,

Zhu,

Feng

et al. 2024

Astronomical Techniques and Instrument

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The Solar Close Observations and Proximity Experiments (SCOPE) mission, which has been proposed by the Yunnan Observatories, Chinese Academy of Sciences, aiming to operate at a distance of 5 to 10 solar radii from the Sun, plans to complete the in situ detection of the solar eruption process and observation of the magnetic field structure response. The solar flux received by the satellite ranges from 10 3 to 10 6 Wm −2 , which poses challenges for thermal management of the solar arrays. In this work, the solar array cooling system of the Parker Solar Probe is discussed, the developments of the fluid loop technique are reviewed, and a research plan for a next-generation solar array cooling system is proposed. This paper provides a valuable reference for novel thermal control systems in spacecraft for solar observation.

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Section: Pumped Two-phase Fluid Loop Systemsmentioning

confidence: 99%

Application and prospect of the fluid cooling system of solar arrays for probing the Sun

Bao,

Zhu,

Feng

et al. 2024

Astronomical Techniques and Instrument

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“…Liu et al [12,13] studied the transient behaviors of start-up temperature control under different heat loads, flow rates, and sink boundaries in the lab, and their results indicated that the MPTL system presented excellent and stable performance for varied conditions. Zhang et al [14] investigated operating behaviors in a simulated space environment, and MPTL could be smoothly operated under different boundaries. Meng et al [1,15] studied the transient characteristics during start-up and heating power load on/off for simulating the operating modes of a space camera in the lab and a simulated space environment.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulations and Analyses of Mechanically Pumped Two-Phase Loop System for Space Remote Sensor

Meng

2022

Energies

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A mechanically pumped two-phase loop (MPTL) system used for the accurate and stable thermal control of orbital heat sources can show excellent characteristics. In order to study the dynamic behaviors of heat and mass transfer of MPTL systems, particularly in response to heat load variations, a transient numerical model was developed by using the time-dependent Navier-Stokes equations. A comparison between the simulation and test results indicated that the errors of mass flow rate were at around ±10%, of which the validity and accuracy were verified. The model was used to study the operating state, and flow and heat characteristics on the basis of the analyses of variations in mass flow rate, temperature, and quality under different operating conditions. Above all, the complex transient behaviors in response to heat load variations in an MPTL system were studied in this model, such as the mass transfer between the accumulator and loop. Results indicate that the phenomenon of mass exchange occurs between the main loop and the accumulator when the heating power increased or decreased. Variations in temperature and pressure in the accumulator were different for the cases of increasing and decreasing power. The slope of the exchange rate curve and the maximal value of the flow rate decreased with the increase in filling amount. The model could be used to guide the design of MPTL systems and to predict the behavior before a system is built.

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Study on the flow boiling characteristics of novel pin fin heat sinks in a two-phase mechanically pumped cooling loop

Wang,

Qi,

et al. 2024

Case Studies in Thermal Engineering

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Experimental study on dynamic behavior of mechanically pumped two-phase loop with a novel accumulator in simulated space environment

Cited by 7 publications

References 23 publications

Application and prospect of the fluid cooling system of solar arrays for probing the Sun

Application and prospect of the fluid cooling system of solar arrays for probing the Sun

Numerical Simulations and Analyses of Mechanically Pumped Two-Phase Loop System for Space Remote Sensor

Study on the flow boiling characteristics of novel pin fin heat sinks in a two-phase mechanically pumped cooling loop

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