Application of Finite Difference Method for determining lunar regolith diurnal temperature distribution

Kaczmarzyk, Marcin; Gawroński, M.; Piątkowski, Grzegorz

doi:10.1051/e3sconf/20184900052

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Further work based on depthvarying property parameters should be conducted for a more realistic estimation of the temperature field in the Martian subsurface. In addition, numerical methods such as the finitedifference method (Kaczmarzyk et al, 2018) and finite-element method (Wasilewski et al, 2021) could numerically simulate the temperature field and even the thermodynamic behaviors based on a more complex and more detailed model of the subsurface. In addition, with a more detailed three-dimensional structure being detected in the future, the three-dimensional heat conduction equation can be developed to simulate a more realistic temperature field in the subsurface of Mars.…”

Section: Discussionmentioning

confidence: 99%

Observation-based temperature field simulation at Zhurong landing site, Mars

Zhang

Zhang²

2022

Front. Astron. Space Sci.

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Modeling the temperature field near the Martian surface is critical for many scientific exploration tasks, such as detecting liquid water and analyzing the existence of saline ice. Meteorological conditions on Mars are highly dramatic, with a daily temperature change of up to 80–100 K. Most previous tasks of surface temperature monitoring on Mars are based on satellite observations, lacking in-situ measured data. Recently, two Martian missions at mid-low latitudes in the northern hemisphere, InSight lander and Zhurong rover, carried out near-surface temperature observations. However, the temperature monitoring of the Zhurong rover obtained data for only some short periods in its working days; thus, the amount of recorded temperature data is inadequate for a whole-day analysis at the landing site. Here we reconstruct the near-surface temperature at the Zhurong landing site by incorporating the continuous temperature data observed at the InSight lander, simultaneously referring to the Martian Climate Database; then, the reconstructed data are used to constrain the numerical simulation of the response of shallow subsurface under the Zhurong landing site. The numerical simulation of heat conduction shows that the daily temperature change under the Zhurong landing site mainly influences the uppermost depth of 0–30 cm, with a daily average temperature of ∼225 K. During the traveling duration of the Zhurong rover (i.e., summer of Mars), the seasonal temperature change within the top 1 m is significant and is related to the thermal properties of possible subsurface media (e.g., soil, ice, and sandstones). Although there might be aqueous activities in Utopia Planitia, our results show that from the perspective of temperature field, there is little possibility of liquid water in the shallow subsurface under the Zhurong landing site. The proposed method in this study provides a new way for the temperature field simulation of the subsurface in areas with insufficient local observations, especially on extraterrestrial objects.

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Section: Discussionmentioning

confidence: 99%

Observation-based temperature field simulation at Zhurong landing site, Mars

Zhang

Zhang²

2022

Front. Astron. Space Sci.

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“…This will be very useful given that heat exchange under vacuum conditions is severely limited. [ 25 ] At the same time, the high temperature heat may be effectively harnessed to drive thermochemical reactions for local manufacturing or resource extraction and conversion.…”

Section: Design Philosophymentioning

confidence: 99%

How to Survive at Point Nemo? Fischer–Tropsch, Artificial Photosynthesis, and Plasma Catalysis for Sustainable Energy at Isolated Habitats

Levchenko,

Xu,

Baranov

et al. 2023

Global Challenges

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Inhospitable, inaccessible, and extremely remote alike the famed pole of inaccessibility, aka Point Nemo, the isolated locations in deserts, at sea, or in outer space are difficult for humans to settle, let alone to thrive in. Yet, they present a unique set of opportunities for science, economy, and geopolitics that are difficult to ignore. One of the critical challenges for settlers is the stable supply of energy both to sustain a reasonable quality of life, as well as to take advantage of the local opportunities presented by the remote environment, e.g., abundance of a particular resource. The possible solutions to this challenge are heavily constrained by the difficulty and prohibitive cost of transportation to and from such a habitat (e.g., a lunar or Martian base). In this essay, the advantages and possible challenges of integrating Fischer–Tropsch, artificial photosynthesis, and plasma catalysis into a robust, scalable, and efficient self‐contained system for energy harvesting, storage, and utilization are explored.

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“…As mentioned, selenographic latitude determines diurnal surface temperature distribution, which is one of the factors to be used in the radiator sizing for the energy storage temperature control system (see: 2.3). Table 4 contains lunar surface temperatures calculated for the selected selenographic latitudes at specified moments of the lunar cycle [73]. In order to account for varying solar illumination at the base site and its influence on the PV system performance, the solar radiation factor (fSR) was introduced.…”

Section: The Base Locationmentioning

confidence: 99%

Parametric Study of a Lunar Base Power Systems

Kaczmarzyk

Musiał

2021

Energies

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Due to the extreme cost of cargo transportation from Earth to the lunar surface, future lunar base subsystems are required to be rigorously optimized in terms of mass reduction. The purpose of this paper was to identify and evaluate the influence of key parameters of proposed lunar base power systems, as well as of the lunar environment on the total power system mass. Nine different power systems were studied as combinations of two power sources and three energy storage technologies. Power system architecture, total power demand of the base, its power management strategy, solar array structure type, Selenographic latitude and solar illumination conditions were nominated as the primary parameters for this study. Total power system mass calculations were performed for more than 200 combinations of these parameters, including three separate case studies. The total mass calculated for each combination included a power source, an energy storage unit, temperature control and the balance of system. For the wide range of studied parameters, hybrid power systems that combine solar and nuclear power were found to be the most advantageous solutions in terms of mass reduction.

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Application of Finite Difference Method for determining lunar regolith diurnal temperature distribution

Cited by 5 publications

References 14 publications

Observation-based temperature field simulation at Zhurong landing site, Mars

Observation-based temperature field simulation at Zhurong landing site, Mars

How to Survive at Point Nemo? Fischer–Tropsch, Artificial Photosynthesis, and Plasma Catalysis for Sustainable Energy at Isolated Habitats

Parametric Study of a Lunar Base Power Systems

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