Mats Rönnelid

Thermal losses in sealed, gas-filled flat plate solar collectors (2007)

Fortsätter dagens tillväxt av nätansluten solel kommer vi en gång i framtiden att nå dithän att produktionen av el tidvis överstiger efterfrågan, dvs att vi får en överproduktion av el. Med...

Vestlund, Johan, Rönnelid, Mats, Dalenbäck, Jan-Olof

Computer modelling of wood pellet stoves and boilers connected to solar heating systems (2006)

Nordlander, Svante, Persson, Tomas, Fiedler, Frank, Rönnelid, Mats, Bales, Chris

When optimizing systems for wood pellet and solar heating, there is a need for realistic computer models of stoves and boilers in order to perform simulation studies. The objective of this work was...

Increasing efficiency and decreasing CO-emissions for a combined solar and wood pellet heating system for single-family houses (2006)

Persson, Tomas, Fiedler, Frank, Rönnelid, Mats, Bales, Chris

This study focus on how wood pellets and solar heating systems for single-family houses should be designed and controlled to reach high efficiency and to reduce the CO-emissions. A recently developed...

Increasing the solar gain by heat-fed and hot water-fed clothes washer and washing machines (2006)

Persson, Tomas, Rönnelid, Mats

70 to 90% of the electric energy used by dishwashers and washing machines heats the water, the crockery, the laundry and the machine and could just as well be replaced by heating energy from solar...

European Solar Engineering School ESES : Past and Future (2006)

Bales, Chris, Lindberg, Eva, Fiedler, Frank, Rönnelid, Mats

The European Solar Engineering School ESES is a one-year masters program that started in 1999 at the Solar Energy Research Center SERC, Dalarna University College. It has been growing in popularity...

Asymmetrical awnings : a way to increase daylight in buildings without increasing the overheating (2006)

Rönnelid, Mats, Sonderen, Christiaan

Different shapes of asymmetric awnings for east and west windows are investigated mathematically as well as by measurement in a model. A box with 90 cm side and a 30x30 cm window was placed outdoor...

European Solar Engineering School ESES - Past and Future (2006)

Bales, Chris, Lindberg, Eva, Fiedler, Frank, Rönnelid, Mats

The European Solar Engineering School ESES is a one-year masters program that started in 1999 at the Solar Energy Research Center SERC, Dalarna University College. It has been growing in popularity...

Electrical Savings by Use of Wood Pellet Stoves and Solar Heating Systems in Electrically Heated Single-family Houses (2005)

Persson, Tomas, Nordlander, Svante, Rönnelid, Mats

This study investigates how electrically heated single-family houses can be converted to wood pellets- and solar heating using pellet stoves and solar heating systems. Four different system concepts...

Genomförande av en serie examensarbeten (magisteruppsatser) inom solelområdet under 2005 (2005)

Sol till både vatten och värme, Enkla åtgärder kan öka solvärmeutbytet (2004)

Rönnelid, Mats, Bales, Chris, Lorenz, Klaus, Nordlander, Svante, Perers, Bengt, Persson, Tomas

Kartläggning av organiskt avfall (2004)

Mattsson Petersen, Cecilia, Berg, Per E O, Nordlander, Svante, Rönnelid, Mats

Solvärmesystem för hög täckningsgrad - Load adapted concentrating collectors for high solar fractions (2004)

Nordlander, Svante, Rönnelid, Mats

Dagens kombisolvärmesystem för enfamiljshus har i storleksordningen 10 m2 solfångare och kan täcka i runda tal 10 ? 30 % av det årliga värmebehovet. Ökar man solfångarytan för att öka...

Solvärme och värmepump : utvärdering av ett värmesystem i Uppsala (2004)

Rönnelid, Mats, Tepe, Rainer

Enkla åtgärder kan öka solvärmeutbytet (2004)

Kartläggning av organiskt avfall (2004)

Mattsson Petersen, Cecilia, Berg, Per E.O., Nordlander, Svante, Rönnelid, Mats

Combination of Solar Heat and Ground Source Heat Pump for Small Buildings (2003)

Kjellsson, E, Hellström, G, Tepe, R, Rönnelid, Mats

Optimized truncation of a wide acceptance angle CPC (2003)

Swedish solar systems in combinations with heat pumps (2003)

Tepe, Rainer, Rönnelid, Mats, Perers, Bengt

Partiell förångning i solfångarsystem : överhettningsskydd för värmebäraren (främst glykol) (2003)

Perers, Bengt, Lorenz, Klaus, Rönnelid, Mats

Solfångare och värmepump : Marknadsöversikt och preliminära simuleringsresultat (2002)

Tepe, Rainer, Rönnelid, Mats

Optical Scattering from rough rolled aluminium surfaces (2001)

Rönnelid, Mats, Adsten, Monika, T, Lindström, P, Nostell, E, Wäckelgård

CIGS thin film PV modules for low-concentrating systems (2001)

J, Wennerberg, J, Kessler, J, Hedström, L, Stolt, B, Karlsson, Rönnelid, Mats

PV-Panel with an Overedge Reflector for Northern Sun Conditions (2001)

Helgesson, Anna, Karlsson, Björn, Krohn, Peter, Rönnelid, Mats

Load Adapted Collectors for High Solar Fractions (2001)

Nordlander, Svante, Rönnelid, Mats

Utveckling av moduler med överliggande refflektorer för fristående solcellssystem för årstidsutjämning och för att undvika snö och frostbeläggning (2001)

Karlsson, Björn, Helgesson, Anna, Rönnelid, Mats

Booster reflectors for PV modules in Sweden (2000)

Rönnelid, Mats, Karlsson, B, Krohn, P, Wennerberg, J

CIGS thin film PV modules for low-concentrating systems (2000)

Wennerberg, J, Kessler, J, Hedström, J, Stolt, L, Karlsson, B, Rönnelid, Mats

Load and Season Adapted Solar Collectors (2000)

Nordlander, Svante, Rönnelid, Mats, Karlsson, Björn

In Sweden solar irradiation and space heating loads are unevenly distributed over the year. Domestic hot water loads may be nearly constant. Test results on solar collector performance are often...

PV-thermal hybrid low-concentrating CPC module (2000)

Brogren, Maria, Rönnelid, Mats, Karlsson, Björn

Solceller med reflektorer : Resultat 1999 (2000)

Karlsson, Björn, Krohn, Peter, Perers, Bengt, Krohn, Peter, Rönnelid, Mats, Brogren, Maria

The origin of the asymmetric annual irradiation distribution at high latitudes (1999)

The use of corrugated booster reflectors for large solar collector fields (1999)

Cooling of PV modules equipped with low-concentrating CPC reflectors (1999)

Rönnelid, Mats, Perers, Bengt, Karlsson, Björn, Krohn, Peter

Active cooling of low-concentrating hybrid PV/Thermal collectors (1999)

Rönnelid, Mats, Perers, Bengt, Krohn, Peter, Spante, Lennart, Karlsson, Björn

A series of measurements on the performance of solar cell string modules with low-concentrating CPC reflectors with a concentration factor C ˜ 4X have been carried out. To minimise the reduction in...

The origin of the asymmetry in the irradiation distribution at high latitudes (1999)

Solel 97-99. Ett branchgemensamt FoU-program : Årsrapport 1998 (1999)

The possibility of using solar energy during winter depends on the available solar radiation and on the geometry of the receiving surface. For high latitudes, the annual distribution of the available...

Spante, L, Andersson, M, Perers, B, Krohn, P, Karlsson, B, Sunér, M, ...

Optical properties of modified compound parabolic concentrators with linear corrugated reflectors (1998)

Optical design of stationary solar concentrators for high latitudes : Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and technology 353 (1998)

The latitude dependent irradiation distribution in Europe and its implication for the design of stationary concentrators (1998)

Experimental performance of a string module in a CPC reflector cavity (1998)

When a stationary solar concentrator is designed, the spatial distribution of the available irradiation is of vital interest. An irradiation distribution based only on solar geometry will look...

Rönnelid, Mats, Perers, Bengt, Krohn, Peter, Spante, Lennart, Karlsson, Björn

The purpose of the work is to develop a cost effective semistationary CPC concentrator for a string PV-module. A novel method of using annual irradiation distribution diagram projected in a...

Solceller med reflektorer : Resultat 1998 (1998)

Karlsson, Björn, Krohn, Peter, Rönnelid, Mats

Solel 97-99. Ett branchgemensamt FoU-program : Årsrapport 1997 (1998)

Spante, L, Andersson, M, Perers, B, Krohn, P, Helgesson, A, Karlsson, B, ...

Irradiation distribution diagrams and its use for estimating collectable energy (1997)

On the factorization of incidence angle modifiers for CPC-collectors (1997)

Rönnelid, Mats, Perers, B, Karlsson, B

Rapport ramprogram FOU 1993-96, Projektnr 930391-05 samt förslag till ramprogram solfångarutveckling och systemteknik FOU 1997-99 solfångarutveckling och systemteknik (1997)

Broman, Lars, Bales, Chris, Lindberg, Eva, Lorenz, Klaus, Rönnelid, Mats

Solceller med reflektorer : Resultat 1997 (1997)

Karlsson, Björn, Krohn, Peter, Perers, Bengt, Rönnelid, Mats

Construction and testing of a large area CPC-collector and comparison with a flat plate collector (1996)

Rönnelid, Mats, Perers, B, Karlsson, B

Experimental investigation of heat losses from low-concentrating non-imaging concentrators (1996)

Solcellspaneler med underliggande tillsatsreflektorer för svenskt klimat (1996)

Static Concentrators for Photovoltaic Modules at High Latitudes (1996)

En numerisk studie av möjligheten att öka årsutbytet från solcellspaneler genom att använda underliggande tillsatsreflektorer har genomförts. Studien baseras på solstrålningsdata för...

Rönnelid, Mats, Krohn, Peter, Perers, Bengt, Karlsson, Björn

The paper gives an analysis of the performance of the photovoltaic modules with planar booster reflectors with variable length and tilts for Swedish conditions. The booster reflector for photovoltaic...

An improved Dynamic Test Method for the Determination of Non-Linear Incidence Angle Modifiers from Outdoor Testing using Standard Multiple Regression Tools (1996)

Perers, Bengt, Karlsson, Björn, Rönnelid, Mats

Solceller 1996 (1996)

Perers, Bengt, Spante, Lars, Krohn, P, Setterwall, C, Gröndalen, O, Holmström, S, ...

The impact of high latitudes on the optical design of solar systems (1996)

Rönnelid, Mats, Karlsson, Björn, Gordon, J.M.

Irradiation distribution functions based on the yearly collectible energy have been derived for two locations; Sydney, Australia which represents a mid-latitude site and Stockholm, Sweden, which...

On the factorization of incidence angle modifiers for CPC-collectors (1995)

Rönnelid, Mats, Perers, Bengt, Karlsson, Björn

The use of corrugated booster reflectors for large solar collector fields (1995)

Optical and thermal properties of low-concentrating CPC-collectors for Swedish conditions (1995)

Construction and testing of a low-concentrating CPC-collector (1994)

Corrugated booster reflectors for large solar collector fields (1994)

Rönnelid, Mats, Perers, Bengt, Karlsson, Björn

Optical properties of nonimaging concentrators with corrugated reflectors (1994)

Rönnelid, Mats, Perers, Bengt, Karlsson, Björn

Heat losses in solar collectors with internal reflectors (1993)

Radical improvements of large collector fields (1992)

Bergkvist, Mikael, Hellström, Bengt, Wäckelgård, Eva, Rönnelid, Mats, Platzer, Werner, Jönsson, Bengt, ...

Rapport från en studieresa till Portugal 26/11-1/12 1991 (1991)

Grundläggande förutsättningar för solfångare med interna reflektorer : en kunskapsöversikt (1991)

Föreliggande rapport innehåller minnesanteckningar från en studieresa till Portugal 25/11- 2/121991. Syftet var framförallt att diskutera CPC-teknologi för solvärmeändamål med Manuel...

Presentation of PRESIM. A userfriendly pre-processor for TRNSYS (1991)

Syftet med föreliggande rapport har varit att visa på de grundläggande egenskaperna för solfångare med interna reflektorer. Vidare tjänar rapporten syftet att ge en bild av dagsläget inom...

Nordlander, Svante, Rönnelid, Mats, Isakson, Per, Broman, Lars

Presentation of PRESIM - a user-friendly preprocesssor for TRNSYS (1990)

Nordlander, Svante, Rönnelid, Mats, Isakson, Per, Broman, Lars

Use of nonimaging concentrators for moderate concentration of sunlight onto PV cells (1989)

Broman, Lars, Rönnelid, Mats, Binder, Betty, Lindberg, Eva

The square cornet type nonimaging concentrator has been shown useful for moderate concentration of sunlight onto photovoltaic solar cells, since it creates no hot spots at the exit aperture. In this...

PRESIM - a graphical interactive preprocessor for modular simulation programs (1989)

Nordlander, Svante, Rönnelid, Mats, Isakson, Per, Broman, Lars

PRESIM is a computer program for creating, storing, retrieving and changing input data for modular HVAC programs. The user works with CAD-style tools. The program also produces system schematics and...

PRESIM - a graphical interactive preprocessor for modular simulation programs (1989)

Nordlander, Svante, Rönnelid, Mats, Broman, Lars, Isakson, Per, Figueroa, Eduardo

Use of an integrating sphere for transmittance measurements on nonimaging concentrators (1989)

Broman, Lars, Rönnelid, Mats, Karlsson, Björn, Bergkvist, Mikael, Wäckelgård, Eva

Rapport från/report from ISES Solar World Congress Hamburg September 13-18 1987 (1988)

Broman, Lars, Börjesson, Kent, Nordlander, Svante, Rönnelid, Mats

Workshop on PRESIM - a graphical preprocessor for modular simulation programs e.g. TRNSYS (1988)

Broman, Lars, Figueroa, Eduardo, Isaksson, Per, Nordlander, Svante, Rönnelid, Mats

Solen är afrikas GULD (1987)