The Best Explorer Team

APHRODITE I (Case-Battery)

High-Level Project Summary

Aphrodite I, a system developed for energy storage that supports temperatures less than 600°C and atmospheric pressures ranging from 90 bar or 91 atm, this system is armed by several subsystems such as: the energy storage system, cooling, thermal insulation, internal temperature measurement and design or proposal for better thermal insulation.The system consists of 5 batteries for the survival of a Rover or a lander. The system is rechargeable by means of 3 solar panels with light trackers, Apart from the storage and recharging system, it will have 2 converters from DC to AC and 8 sensors that monitor the entire Aphrodite system so that it is in its best condition.

Detailed Project Description

The Aphrodite I System consists of 5 lithium-air batteries intended for the survival of a Rover or a lander, of which 2 are the main batteries (A and B), which powers the Rover system, while another 2 will be used as backup for the former (GA and GB) in case of a failure in the main batteries, also a battery that has the function of feeding the programmable logic control.

The system is rechargeable by means of 3 solar panels with light trackers, where panel no.1 has a configuration only on the horizontal axis, while panel no. 2 and 3 have configuration on both the horizontal and vertical axis.

Apart from the storage and recharging system, 2 converters are included from DC to AC, where one is the main and a secondary in case of breakdowns, said converters supply energy to a last element for the system, the compressor, who is in charge of keeping the cooling inside.

Aphrodite I features a phenolic resin encapsulation where you will find batteries, sensors, cooling system, converters and programmable logic control, ensuring that components are not damaged at the entrance of the atmosphere and surface of the planet, such encapsulation must remain at a temperature suitable for its operation, which shall be achieved by a thermal insulation system consisting of several layers of coatings, which is formed by an arrangement interspersed between two materials, Starting with aerogel followed by ceramic TPC, achieving four layers in total, this system guarantees the stability of the temperature of the battery, all this considering conditions of Venus, mainly of temperature and atmospheric pressure.

Finally for the structure of the shell of Aphrodite I is composed of two materials, of a titanium alloy containing aluminum and vanadium who will be in direct contact with the outside, Its function is to protect the entire system from the acids of the planet and to prevent the deformation of the structure of Aphrodite I given the atmospheric pressure of it.

Additionally it has 8 sensors, of which 2 sensors that will measure the temperature at which the system is at all times and monitoring that it does not present temperature anomalies in the package, 4 intended to measure that batteries charge and discharge, while the last 2 are to measure the output of converters to know if the system has AC flow. 

To finish and explain in detail the entire system Aphrodite I, has 3 sockets, 2 sockets in DC (1 and 3) and 1 in AC (2), the socket 1 is independent of the panels when it is grounded, while socket 3 comes from batteries for use in specific tasks and for programmable logic control, on the other hand socket 2 focuses on delivering AC power from the converter.

As an extra in the system, has a receiving antenna to send commands to perform certain actions as an example the activation of the cooling system before entering the atmosphere to achieve that when the Rover or lander lands it is already cooling.

Space Agency Data

For the development of this project we rely on the data provided by the NASA International space apps challenge platform, in which important data such as the atmospheric and environmental conditions presented by this planet were rescued, based specifically on its extremely hot surface, which oscillates between 860°F or 460°C and its atmospheric pressure, previous experiences and events presented in previous explorations by NASA were also considered, Thus setting our main objective was the design of a thermal insulation for our lithium-air battery.

Hackathon Journey

First it was knowing the call and putting together a team once we got the team together was deciding what challenge we liked best, and talking to our college advisor to see if they could support us with transportation, found it quite interesting and asked us to gather more companions to form more team managing to form 10 teams, once we arrived at the facilities we were surprised by the level of organization and the service provided, we were helped by the resources provided to give us the idea that we needed and consulted in various additional sources, we learned new things that will serve as experience in our academic formation, at first we went for a while related to our engineering but we decided to go out of the usual to know new things so we chose this challenge in which we focus on not only devise the battery to use but a system that would protect the battery from everything what could damage or cause defects in Venus, At some point we focused so much on research that we had to modify the planned schedule, Finally we would like to thank the organizer of the event for the attention given at all times as well as the rector of UNAQ who made possible her use of the facilities.

References

Ma, J. (2022). Battery Technologies Materials and Components. WILEY-VCH


GRUPOSINCRO. (s. f.). Tabla de fibra cerámica TFC 1260 - Aislantes térmicos RATSA ®. Tabla de fibra ceramica TFC 1260 - Aislantes termicos RATSA ®. Recuperado 2 de octubre de 2022, de https://www.ratsa.mx/producto/ceramica/tabla-fibra-ceramica


HPS HOJA DE DATOS DEL PRODUCTO VENTAJAS. (n.d.). Retrieved October 3, 2022, from https://gutvegsa.mx/wp-content/uploads/2020/06/Pyrogel-HPS-Datasheet-ES.pdf


Pyrogel HPS Aislamiento de Aerogel - General Insulation. (2017). General Insulation. https://www.generalinsulation.com/products/insulation-products/insulation-types/aerogel-commercial-insulation/pyrogel-hps/?lang=es


de, C. (2001, October 28). planeta del sistema solar, el segundo en orden de distancias al Sol. Wikipedia.org; Wikimedia Foundation, Inc. https://es.wikipedia.org/wiki/Venus_(planeta)


de, C. (2007, July 19). detalle de la atmósfera del planeta. Wikipedia.org; Wikimedia Foundation, Inc. https://es.wikipedia.org/wiki/Atm%C3%B3sfera_de_Venus


NUEVO SEGUIDOR SOLAR DE UN EJE | Economia de la energia. (2022). Economiadelaenergia.com. http://www.economiadelaenergia.com/2011/12/nuevo-seguidor-solar-de-un-eje/


Los materiales de ensueño de la NASA para recorrer el Sistema Solar. (1970). MIT Technology Review. https://www.technologyreview.es/s/11269/los-materiales-de-ensueno-de-la-nasa-para-recorrer-el-sistema-solar#:~:text=La%20NASA%20trabaj%C3%B3%20con%20una,en%20el%20regreso%20del%20Apolo.

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