Abstract – In this paper we show that a gray body which separated from vacuum by a material interface and submitted to outside incident radiation can behave like a Pseudo Radiation Energy Amplifier. The Earth (Earth + atmosphere) is not a simple isolated gray body but it is in fact a Pseudo Radiation Energy Amplifier with adequate reflection coefficients. The balance of the energy exchanged between Earth and outer space is reconsidered and the estimated Earth’s ground temperature mean value 15 °C is then derived.
The solar power absorbed by the Earth does not explain the gap noted between the estimated Earth’s ground temperature mean value and the one calculated while considering the earth as an isolated gray body. The Earth (Earth-atmosphere) is in fact a Pseudo Radiation Energy Amplifier with adequate reflection coefficients.
The effectively absorbed power by a Pseudo Radiation Energy Amplifier is the sum of the power provided by an external source, and the power emitted by the Pseudo Radiation Energy Amplifier gray body itself and reflected back at the interface separating the Pseudo Radiation Energy Amplifier gray body from the vacuum. In this scheme, the solar and terrestrial radiation reflection coefficients by the earth and its atmosphere acquire a privileged role. Thus, the balance of the energy exchanged between Earth and outer space is reconsidered and the 15 °C estimated Earth’s ground temperature mean value is then derived.
Our result revives the discussion on the parameters that control the Earth climate. The Pseudo Radiation Energy Amplifier can be a starting point to improve the energy use. It can find its application for a better use of the energy resources. The materials having the adequate reflection coefficients will be indicated for specific applications.
Click source to download PDF file "The Pseudo Radiation Energy Amplifier (PREA)" by Prof. Ahmed Boucenna, Physics Department Sciences Faculty Setif University, Algeria
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