Similar Search Results

Shallow borehole heat exchanger: Response test and charging–discharging test with solar collectors

Georgiev, A.; Busso, A.; Roth, P. - In: Renewable Energy 31 (2006) 7, pp. 971-985

Possible heat sources for seasonal Underground Thermal Energy Storage (UTES) can be divided into two main groups—renewable energy and waste heat. The design of a ground heat exchanger for UTES applications requires knowledge of the thermal properties of the soil (thermal conductivity λ and...

Persistent link: https://www.econbiz.de/10011046333

Cheap two axis sun following device

Roth, P.; Georgiev, A.; Boudinov, H. - In: Energy conversion and management : ECM 46 (2005) 7-8, pp. 1179-1192

Persistent link: https://www.econbiz.de/10006607991

Sun following system adjustment at the UTFSM

Georgiev, A.; Roth, P.; Olivares, A. - In: Energy conversion and management : ECM 45 (2004) 11, pp. 1795-1806

Persistent link: https://www.econbiz.de/10006610742

Design and construction of a system for sun-tracking

Roth, P.; Georgiev, A.; Boudinov, H. - In: Renewable Energy 29 (2004) 3, pp. 393-402

An electromechanical system to follow the position of the sun was designed and built at the Solar Evaluation Laboratory of the Technical University Federico Santa Maria (UTFSM) in Valparaiso. It allows the automatic measurement of direct solar radiation with a pyrheliometer. It operates...

Persistent link: https://www.econbiz.de/10010806334

Organizacii i borbi na transportnite rabotnici v Bŭlgarija : Kabinet za istorija na profsǔjuz. dviženie v Bŭlgarija. Dr. Kodžejkov [u.a.] ; 1878 - 1944. Pod red. na Christo Christo...

Christov, Christo (contributor); Lambrev, K. (contributor); … - 1962

Persistent link: https://www.econbiz.de/10002321127

Bemerkungen zur wirtschaftlichen Lage der polnischen Gebiete : [Besprechung von:] P. Roth: Die wirtschaftlichen Grundlagen Polens und die polnischen Aussenhandelsbeziehungen. "W. A...

Zieliński, St. - In: Weltwirtschaftliches Archiv : Zeitschrift des Instituts … 27 (1928), pp. 293-302

Persistent link: https://www.econbiz.de/10003021010

Simulation and experimental results of a vacuum solar collector system with storage

Georgiev, A. - In: Energy conversion and management : ECM 46 (2005) 9, pp. 1423-1442

Persistent link: https://www.econbiz.de/10006605063

Ablösesummen im Vertrags- und Amateursport

Roth, P. - In: Arbeit und Arbeitsrecht : AuA ; die Zeitschrift für … 56 (2001) 5, pp. 217-220

Persistent link: https://www.econbiz.de/10007814906

Stačnite borbi na rabotničeskata klasa v Bŭlgarija

Chadžnikolov, Veselin; Mladenov, D.; Isusov, M.; … - 1960

Persistent link: https://www.econbiz.de/10014413480

Testing solar collectors as an energy source for a heat pump

Georgiev, A. - In: Renewable Energy 33 (2008) 4, pp. 832-838

The article presents the experimental study of a heat pump possessing solar collectors as an energy source. A method to test the combined work of collectors delivering heat to the evaporator of a heat pump was devised. The layout of the test facility is shown and the system construction with the...

Persistent link: https://www.econbiz.de/10011044437