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Ziele und Konzentrationszonen in der Raumordnung
Anders, Dieter R. - In: Aktuelle Fragen des Fachplanungs-, Raumordnungs- und …, (pp. 269-287). 2008
Persistent link: https://www.econbiz.de/10014561617
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Die Nachfrage nach Primär- und Sekundärrohstoffen der Steine-und-Erden-Industrie 2035 in Deutschland
Schwarzkopp, Fritz; Drescher, Jochen; Gornig, Martin; … - 2019 - Aktualisierung 2019
Persistent link: https://www.econbiz.de/10012217401
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Kieskonzeption 2000 : vom 10. Juni 1987
Ditteney (ed.) - 1987
Persistent link: https://www.econbiz.de/10013330309
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On the "global sand crisis" : from capital accumulation to ecological planning
Salle, Grégory - In: Journal of illicit economies and development : JIED 4 (2022) 3, pp. 382-389
Against the common perception of sand as an abundant, even inexhaustible material, the idea of a "global sand crisis … unexpected risk of sand shortage on the one hand, and the harmful environmental impact of (illegal) sand mining on the other … relating sand overconsumption to the dynamics of capital. Relatedly, it conveys a legalistic viewpoint disregarding that at the …
Persistent link: https://www.econbiz.de/10013543036
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Analysen und Bewertung beibrechender Wertminerale aus Kies- und Sandlagerstätten in Deutschland : Auftragsstudie
Haubrich, Frank; Trinkler, Michael; Sandmann, Dirk - 2022
Persistent link: https://www.econbiz.de/10013469764
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Performance of a solar drier with and without heat storage material for copra drying
Mohanraj, M.; Chandrasekar, P. - In: International Journal of Global Energy Issues 31 (2009) 2, pp. 112-121
materials. Sand mixed with aluminium scrap was used as a heat storage material in solar air heater. The moisture content (wet …
Persistent link: https://www.econbiz.de/10008539313
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Performance of a solar drier with and without heat storage material for copra drying
Mohanraj, M.; Chandrasekar, P. - In: International Journal of Global Energy Issues 31 (2009) 2, pp. 112-121
materials. Sand mixed with aluminium scrap was used as a heat storage material in solar air heater. The moisture content (wet …
Persistent link: https://www.econbiz.de/10005048724
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Understanding the effects of sand and dust accumulation on photovoltaic modules
Beattie, Neil S.; Moir, Robert S.; Chacko, Charlslee; … - In: Renewable Energy 48 (2012) C, pp. 448-452
Numerical and analytical models of sand and dust particle accumulation on photovoltaic modules in dry regions are … presented and supported by a laboratory investigation of sand particle accumulation on a glass surface. Both models and the …
Persistent link: https://www.econbiz.de/10010805216
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Thermal Performance Evaluation of Two Thermal Energy Storage Tank Design Concepts for Use with a Solid Particle Receiver-Based Solar Power Tower
El-Leathy, Abdelrahman; Jeter, Sheldon; Al-Ansary, Hany; … - In: Energies 7 (2014) 12, pp. 8201-8216
This paper presents the results of an extensive study of two thermal energy storage (TES) systems. The goal of the research is to make solar energy cost-competitive with other forms of electricity. A small-scale TES system was first built. The inner to outer layers were made of firebrick (FB),...
Persistent link: https://www.econbiz.de/10011096207