High-Level Project Summary
Piezoelectricity is based on the transformation of mechanical energy into electrical energy, through the deformation of some specific materials, energy that can be stored and or used. With this property in mind, we propose the creation of “cells” for the generation of electricity, Piezoelectric Plates, formed by layered piezoelectric transducers and a system of “sails” moved by the winds of Venus. The Plates built in layers, form an association of generators, in series and in parallel, for higher values of voltage and electrical load. When exposed to the atmosphere of Venus, they will be pressed, producing a difference in potential that will feed electrical circuits.
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Detailed Project Description
INTERDIMENSIONAL TEAM
Exploration of Venus: Generating under pressure.
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SPACE APPS CHALLENGE
Venus conditions and energy storage
The weather conditions on Venus are drastic and complicated. The temperature of Venus is approximately 461 degrees due to the high greenhouse effect, making it impossible to use conventional batteries due to their constituent materials. Because of this, the problem of storing energy for at least 60 days arises. Atmospheric pressure on the planet Venus is about 92 times that of Earth. The winds on the planet Venus exceed its rotation speed by up to 4 to 6 times. Faced with so many problems exposed on the planet, we propose two electrical energy supply systems based on piezoelectricity, which potentiate reaching the objective of missions for environments of high pressure and temperature.
Producing power under pressure
One of the great challenges of a functional rover or some base capable of collecting information and data on the surface of the planet Venus is the supply of energy to systems, such as engines and transmitters. Thus, we propose the production of electrical energy through piezoelectricity, an existing technology.
Piezoelectricity is based on the transformation of mechanical energy into electrical energy, through the deformation of some specific materials, energy that can be stored and or used. (two)
With this property in mind, we propose the creation of “cells” for the generation of electricity, Piezoelectric Plates, formed by layered piezoelectric transducers and a system of “sails” moved by the winds of Venus. The Plates built in layers, form an association of generators, in series and in parallel, for higher values of voltage and electrical load. When exposed to the atmosphere of Venus, they will be pressed, producing a difference in potential that will feed electrical circuits.
Taking into account the relative constancy of the atmospheric pressure of the planet, for a given altitude, in contrast to the need for mechanical stress, that is, a continuous variation in the intensity of the force on the transducers to obtain electrical energy, we propose the construction of the plates in several layers of transducer polygons, encased in capsules, under pressure well below the external pressure. The capsules will be equipped with mechanical valves that gradually allow pressure balance between the internal and external environments, which will lead to a longer-lasting energy supply, as the plates are compressed by atmospheric pressure. However, when the mechanical movement of the unit (Plate) is exhausted, the production of electrical energy will cease, so we propose a sequence of units, starting the pressurization process as its energy potential runs out and or there is demand, for the equivalent of 60 days.
Piezoelectric capsule units enhance energy delivery with greater power, but with limited duration, since, with a total compression of the plates, energy production ceases, which makes it impossible to use systems that demand energy continuously. . For this, we propose “candles” that will capture the mechanical energy of the winds on the surface of Venus, communicating this energy to the bases on which the candles will be coupled. On the bases will be layers of piezoelectric transducers, which will receive, in a more constant way, an oscillating pressure, thus supplying energy for systems of lesser demand, such as telemetry, software and etc… leaving the capsules for higher energy demands.
The advantages of these systems are that the plates, made of ceramic materials such as Barium Titanate, have a high melting point and low corrosive reactivity, limiting characteristics for the use of conventional batteries, in addition to zero self-discharge, the possibility of supplying energy, only when necessary, for example: When maneuvering a roover at a certain time, emitting a signal, collecting a sample, etc... it is safe for the mission and relatively accessible, enhancing space exploration in critical environments, such as Venus .
Space Agency Data
https://solarsystem.nasa.gov/planets/venus/overview/
Hackathon Journey
An innovative and intriguing experience for all of us. We chose this challenge because venus was possibly already in the habitable zone and there was probably a possibility that there was life there. What makes it an important object of study to understand the posibilities in which we are subject on planet Earth
References
"Overview | Venus – NASA Solar System Exploration" https://solarsystem.nasa.gov/planets/venus/overview/
"Vénus (planeta) – Wikipédia, a enciclopédia livre" https://pt.m.wikipedia.org/wiki/V%C3%A9nus_(planeta)
"Piezoeletricidade – Wikipédia, a enciclopédia livre" https://pt.m.wikipedia.org/wiki/Piezoeletricidade
repositorio.aee.edu.br
http://repositorio.aee.edu.br › ...PDF
geração de energia através da piezoeletricidade
"Carboneto de háfnio – Wikipédia, a enciclopédia livre" https://pt.m.wikipedia.org/wiki/Carboneto_de_h%C3%A1fnio