Chapter

Sun-air technological systems for energy efficiency

December 2016

Project: Zero Energy Building towards Zero Embodied Energy Building (ZEB twd ZEEB)

Authors:

Antonella Violano

Università degli Studi della Campania "Luigi Vanvitelli"

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Chapter

Full-text available

Sustainable Nitrogen-Based Fertilizer Production from Sun, Air, and Water

January 2019

In the DüSol research project, the technology of sustainable fertilizer production is developed and demonstrated on the basis of solar thermal redox cycle processes. The focus is on the unexplored step of solar thermal air separation for the production of nitrogen. For this reaction, corresponding materials are identified by thermodynamic calculations and qualified and optimized on a laboratory ... [Show full abstract] scale. In combination with material development, a prototype reactor is designed based on computer-aided calculation tools. In a test campaign in the new high-performance simulator for concentrated solar radiation SynLight at the Technology Center in Jülich, this reactor is being tested and the solar thermal nitrogen production demonstrated. These experimental works go hand in hand with the overall process simulation and optimization, which lead to a comprehensive economic analysis.

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Conference Paper

Full-text available

Sustainable Nitrogen-Based Fertilizer Production from Sun, Air, and Water

January 2019

In the DüSol research project, the technology of sustainable fertilizer production is developed and demonstrated on the basis of solar thermal redox cycle processes. The focus is on the unexplored step of solar thermal air separation for the production of nitrogen. For this reaction, corresponding materials are identified by thermodynamic calculations and qualified and optimized on a laboratory ... [Show full abstract] scale. In combination with material development, a prototype reactor is designed based on computer-aided calculation tools. In a test campaign in the new high-performance simulator for concentrated solar radiation SynLight at the Technology Center in Jülich, this reactor is being tested and the solar thermal nitrogen production demonstrated. These experimentalworks go hand in handwith the overall process simulation and optimization, which lead to a comprehensive economic analysis.

View full-text

Article

The experimental research on performance of air accumulator in compressed air technological system

September 2011

In light of the function of air accumulator on balancing peak load and stabilizing air supply parameters, it has been widely used in compressed air system. In this paper, operating characteristic and performance of air accumulator in the inflating condition of constant inlet pressure or flow rate was obtained via experimental research. In addition, the improving methods were proposed, which may ... [Show full abstract] afford reference on the design of air accumulator.

Conference Paper

27.6% (1-sun, air mass 1.5 G) monolithic two-junction AlGaAs/GaAs solar cell and 25% (1-sun, air mas...

June 1990 · Conference Record of the IEEE Photovoltaic Specialists Conference

A 27.6% efficiency measured under 1-sun, air mass 1.5-global illumination has been achieved in a two-terminal monolithic two-junction cascade solar cell consisting of an Al0.37Ga0.63As ( E g=1.93 eV) upper cell and a GaAs lower cell. This result represents the highest 1-sun efficiency to date. The component cells were electrically connected using a metal ... [Show full abstract] interconnect contact fabricated during postgrowth processing. A prismatic cover glass was bonded to the cascade cell to minimize the obscuration effect introduced by the grid lines and metal interconnect contacts. As the cascade cell was operated under air mass 0 illumination, an efficiency of 23% was obtained. A 24.9% efficiency under 1-sun, air mass 0 condition has been achieved in a monolithic two-junction Al0.37Ga0.63As/Ga solar cell mechanically stacked on an InGaAs ( E g=1.0 eV) solar cell. This is the first demonstration of the high-efficiency GaAs-based three-junction solar cell. The implications of these high efficiencies, in either two-junction or three-junction cascade solar cells for terrestrial and space applications, are discussed

Last Updated: 05 Jul 2022

Sun-air technological systems for energy efficiency

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