SVIBOR - Project code: 2-05-200

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

SVIBOR

SVIBOR - Collecting Data on Projects in Croatia

Project code: 2-05-200


MATERIALS AND SYSTEMS FOR SOLAR ENERGY CONVERSION


Main researcher: VULETIN, JADRANKA (53984)


Assistants
Type of research: applied
Duration from: 01/01/91. to 12/31/94.
Papers on project (total): 25
Institution name: Fakultet elektrotehnike,strojarstva i brodogradnje, Split (23)
Department/Institute: Department of Mathematics and Physics Department of Electronics
Address: Ruđera Boškovića bb.
City: 21000 - Split, Croatia
Communication
Phone: 385 (0) 21 563 777
Fax: 385 (0) 21 563 877
E-mail: jvuletin@fesb.hr
E-mail: izulim@fesb.hr
E-mail: pslap@fesb.hr
E-mail: zoraja@fesb.hr
Summary: Monthly average values of the utilizability function were calculated for a photovoltaic system using the long term hourly measure data of global and diffuse solar radiation incident on a horizontal surface. The results obtained were compared with data calculated according to the approximate expression. The coefficients of that relation were modified by the long term hourly measure data for the observed geographical regions. The PHI-chart was developed from the approximate utilizability expression. The energy flow of photovoltaic system was simulated using the long term hourly values of global and diffuse radiation incident on a horizontal surface. The energy available to the load, the excess energy and the amount of conventional energy from the auxiliary sources are estimated in dependency on the ratio of battery capacity and load. The components of the photovoltaic system were modelled for the purpose of computer simulation and optimization. The storage model for the photovoltaic system was defined by the current - voltage characteristic electrochemical conversion loss. The efficiency of charging and discharging functions was approximated. Dynamic method for solar collector system and its components testing was investigated and verified by laboratory and in-situ testing.

Keywords: Solar radiation, global and diffuse radiation, photovoltaic system, modelling, simulation, energy flow, optimization, utilizability function, heat collector system, testing, dynamic method

Research goals: The main goals of the project are examination of the materials for conversion and storage, searching for optimization methods applicable to the photovoltaic system, and improving the test methods concerning the heat solar collector system. By developing the methods for the simulation of the photovoltaic system work and modeling its components, it has been accomplished the possibility of estimation the energy flow through the system and its optimal work. Using the dynamic method in testing heat solar collector system it has been provided the possibility of more precise determination of the system parameters, shorter testing time and transient condition testing.

COOPERATION - PROJECTS


  1. Name of project: 2-05-247 MATERIJALI I SUSTAVI ZA PRETVORBU SUNČANE ENERGIJE
    Name of institution: FAKULTET ELEKTROTEHNIKE I RAČUNARSTVA
    City: 10000 - Zagreb, Croatia

COOPERATION - INSTITUTIONS


  1. Name of institution: KONČAR - ELEKTRIČNI UREĐAJI
    Type of institution: Economical/Production
    City: 21000 - Split, Croatia

  2. Name of institution: KONČAR - SOLAR CELLS
    Type of institution: Economical/Production
    City: 21000 - Split, Croatia

  3. Name of institution: LUDWIG-MAXIMILIANS UNIVERSITAT, SEKTION PHYSIK
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of information
    City: D-800 - MNCHEN, DEUTSCHLAND
Other information about the project.
MZT Croatian language SVIBOR Alphabetic list Sorted on project code Sorted on institutions Search help
Ministry of
Science and
Technology		 Croatian
language		 Svibor
homepage		 Alphabetic
list		 Sorted on
project code		 Sorted on
institutions		 Search Help
Last update: 10/16/95
Information: svibor@znanost.hr