High-Level Project Summary
The Multi-Layer Storage System (MLSS) is designed so that the energy storage equipment in survey vehicles is least affected by Venus' ambient conditions. Thanks to MLSS, the energy storage components used will be protected from negative effects. In the examinations, it was determined that these vehicles malfunctioned in as little as 90 minutes due to various factors. The energy storage system is designed to have multiple layers of protection, offering long working hours to reconnaissance vehicles. With MLSS, more than 60 days of discoveries will be made on the surface of Venus, and new study areas and new discoveries will be made by obtaining detailed information about the planet.
Link to Final Project
Link to Project "Demo"
Detailed Project Description
MULTI-LAYER STORAGE SYSTEM
Considering the ambient conditions of Venus, it was decided to use Lithium-Sulfur batteries because of the safety provided by high ionization, non-corrosive, high energy and power density, long cycle life, low discharge, and ability to operate at 200-500C temperatures.
By placing 37 cells with 2.8 V 3 Ah, there are 2 of this system in a rover and with 74 cells an hourly power generation capacity of 621.6 Wh, energy storage sufficient for a minimum of 60 days is provided.
The 5-step protection layers of the Multi-Layer Storage System are listed below.
1) Thermal Protection
2) Cooling System
3) Pressure Protection
4) Protection from Acid and Caustic Chemicals
5) Electric Field Protection
1. Thermal Protection: Inconel and Renel alloys, which are not deformed at high temperatures and have low-temperature conductivity, are used in MLSS to prevent the batteries from being affected by heat.
2. Cooling System: Considering the ambient temperature of Venus and the increase in temperature during the operation of the batteries, cooling is provided by the Stirling Cycle in order to ensure the optimum operating limits of 200-500 degrees Celsius for Lithium-Sulfur batteries.
3. Protection from Pressure: Thanks to the vacuum area in the system, it is ensured that the batteries are not affected by 92 bar atmospheric pressure, and convectional heat transfer is prevented in the airless environment.
4. Protection from Acid and Caustic Chemicals: Thanks to the alloy coatings in each layer of the system that do not react with acids, wear caused by materials that can enter from the outside environment is prevented.
5. Electric Field Protection: MLSS is designed to support the movement of electrons in the magnetic and electric field by looking at the ground surface of Venus in the battery positioning of the negative pole of the batteries.
Space Agency Data
NASA JPL- We got an idea about the power supply
NASA JPL- We benefited from storage technologies for extreme environments
We used the data of concepts such as NASA JPL- high energy, long cycle life, lithium-sulfur battery, extreme temperature
NASA JPL- venus resources, we studied Venus's past missions
Hackathon Journey
Our interest in space sciences; Collaboration, creativity, and critical thinking were among our motivations for joining Space App.
In this hackathon, where we came together to develop solutions to the challenges faced on Earth and in space, we carried out ideas as a team. The role of open source data from NASA and other space agency partners in this ideation process has been very useful to us. In cases where we could not develop a solution proposal and get stuck, we benefited from the solutions and approaches brought to the problems of the projects in the past hackathons.
References
https://www.nasa.gov/sites/default/files/atoms/files/niac_2019_phi_brandon_powerbeaming_tagged.pdf
https://www.nasa.gov/directorates/spacetech/niac/2019_Phase_I_Phase_II/Power_Beaming/
https://solarsystem.nasa.gov/resources/549/energy-storage-technologies-for-future-planetary-science-missions/
https://techport.nasa.gov/view/92914
https://sbir.nasa.gov/SBIR/abstracts/21/sbir/phase1/SBIR-21-1-S3.03-3308.html
https://solarsystem.nasa.gov/news/1519/venus-resources/?page=0&per_page=40&order=created_at+desc&search=&tags=Venus&category=324
https://www.nasa.gov/feature/automaton-rover-for-extreme-environments-aree/
https://www.nasa.gov/exploring-hell-venus-rover-challenge
https://2019.spaceappschallenge.org/challenges/planets-near-and-far/memory-maker/details
https://arc.aiaa.org/doi/pdf/10.2514/1.41886
https://www.st.com/en/space-products/rad-hard-bipolar-transistors.html#overview
https://www.st.com/en/space-products/rad-hard-power-mosfets.html
https://www.nasa.gov/sites/default/files/atoms/files/nabw20_dev_lis_batt_hi_energy_app_hwang.pdf
https://www.osti.gov/servlets/purl/1561559
https://web.archive.org/web/20170628172832/https://oxisenergy.com/technology/
https://www.cell.com/joule/fulltext/S2542-4351(20)30001-5?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2542435120300015%3Fshowall%3Dtrue
https://www.nasa.gov/feature/automaton-rover-for-extreme-environments-aree/
https://sci.esa.int/web/venus-express/-/57967-electric-field-at-venus
https://sci.esa.int/web/venus-express/-/57966-venus-has-potential-but-not-for-water
https://www.ucl.ac.uk/news/2016/jun/strong-electric-wind-strips-planets-oceans-and-atmospheres
https://www.cell.com/joule/fulltext/S2542-4351(20)30001-5
https://solarsystem.nasa.gov/missions/magellan/in-depth/
Tags
#explore #storagesystem #venus #energy #battery #creativity #ExtremeTemperature #ExtremeEnvironments #EnergyStorage #HighEnergy #LongCycleLife #LithiumSulfurBattery #venus #DAVINCI #AREE #venera