Publication
Validation of decomposition models for solar irradiance at high latitudes: A preliminary study
- Year
- 2023
- Type
- Lecture
SINTEF search
- Year
- 2019
- Type
- Conference lecture
Publication
A Comparative Study on One-month Solar Radiation Datasets for Photovoltaic Energy Analysis in Trondheim
- Year
- 2023
- Type
- Academic chapter
Publication
Local Ground Monitoring Network of Solar Irradiance at High Latitude: the NTNU-SINTEF SolarNet
- Authors
- Mattia Manni
- Alessandro Nocente
- Steve Völler
- Martin Bellmann
- Marisa Di Sabatino
- Gabriele Lobaccaro
- Year
- 2023
- Type
- Lecture
Publication
A comparative study on solar radiation datasets for photovoltaic energy prediction at high latitudes
- Year
- 2022
- Type
- Conference poster
- Year
- 2011
- Type
- Academic article
Martin Bellmann at SINTEF is heading the project SUCCESS. Photo: Thor Nielsen. Standard The focus of their work is the gas, oxygen, which forms bubbles in the silicon during cell manufacture. The presence of oxygen reduces cell quality to the extent that large amounts of silicon that could be turned...
The process time and energy consumption are important factors when yield and cost for a process isconsidered. One possibility for controlling the heat flux in a Crystalox DS-250 furnace is to use a shutter underneath the crucible which can be opened or closed in controllable ways. Originally this...
- Year
- 2010
- Type
- Conference lecture
Numerical experiments are used to study thermally driven flow during directional solidification of multi-crystalline (mc) silicon. A solid–liquid (s–l) interface shape was imposed by varying the absolute value and the direction of the radial temperature gradient in the melt. The flow pattern and the...
- Year
- 2011
- Type
- Academic article
This paper presents a comprehensive empirical analysis of bifacial photovoltaic (bPV) module performance in high-latitude regions, based on data collected from an outdoor field laboratory in Trondheim, Norway. It explores the operational dynamics of bPV systems under environmental challenges such as...
- Year
- 2024
- Type
- Academic article
Publication
Optimization of silicon crystallization in a Bridgman growth furnace by numerical modeling
A heat transfer model of a semi-industrial furnace has been build, using a 3D FEM model in order to analyze the crystallization phase of a multi-crystalline square ingot. In the modeling of the solidification process heat transfer phenomena, such as radiation and conduction in the furnace have been...
- Year
- 2013
- Type
- Academic article
...process. “But it’s possible to recover this material as part of the production process”, says Martin Bellmann. “And maybe this will enable us to establish a new solar-based industry in Europe”, he says. Bellmann is a Senior Business Developer at SINTEF Industry and is heading the international EU-funded solar...
Numerical experiments are used to study thermally driven flow during directional solidification of multi-crystalline (mc) silicon. A solid–liquid (s–l) interface shape was imposed by varying the absolute value and the direction of the radial temperature gradient in the melt. The flow pattern and the...
- Year
- 2013
- Type
- Academic article
Numerical results from a dynamic simulation of impurity transport and reactions in a Bridgman furnace for directional solidification of multi-crystalline silicon are presented and compared to experimental results. The simulation includes the calculation of the thermal field, melt and gas flow...
- Year
- 2013
- Type
- Academic article
Temperature and oxygen distributions were numerically studied for the Czochralski (Cz) growth of 8′′ diameter silicon single crystals for photovoltaic applications. Fluctuations in the dopant concentration (striation pattern) in the grown crystal obtained by lateral photovoltage scanning (LPS...
- Year
- 2021
- Type
- Academic article
Publication
A novel method for gas flow and impurity control in directional solidification of multi-crystalline silicon
In this paper the potential of a specially designed argon gas injector for controlling the gas flow and transport of impurities in directional solidification of multi-crystalline silicon is evaluated. The gas injector which consists of a valve allows one to control the flow direction independently...
- Year
- 2014
- Type
- Academic article
A heat transfer model of a semi-industrial induction furnace has been build, using a 3D finite element model in order to analyze the entire process cycle, based on the heating, melting, solidification and cooling phases of a multi-crystalline square ingot. In the modeling of the entire process, heat...
- Year
- 2013
- Type
- Academic article
Researcher Martin Bellmann demonstrating the solar panel that can achieve maximum output because it has been fitted with its own cooling system. The panel was developed at SINTEF’s solar cell lab. Photo: Thor Nielsen. Standard All over the world people are moving to the cities. This increases the demand...
...solar radiation technology, but it also uses mirrors to concentrate the sunlight and direct it onto ultra-efficient solar panels”, explains Martin Bellmann, who is a Research Scientist at SINTEF. The plant is constructed in such a way that it can be rotated in the water using propellers. This will enable...
Publication
Comparative validation of global and climate-specific decomposition models at high latitudes
Reliable modelling of the solar potential of urban surfaces (i.e. roofs, facades and ground) in the built environment can contribute to boost the exploitation of solar energy. Empirical and quasi-physical models are combined into model chains for this scope. Among these models, the decomposition...
- Year
- 2024
- Type
- Academic article