Towards building with positive energy : pilot project realized at the CDER with made in Algeria products
A bioclimatic building pilot project has been just realised at the CDER. This building is meant to be offices (Open-space 2) for researchers. During its acheivement, bioclimatic criterias was respected, which are :
Thermal insulation of the envelope with polystyrene insulation material. Insulation of the deck with expanded polystyrene. PVC and double glazed windows. Solar heating systems (ongoing). Two autonomous PV solar systems including a generator to supply electricity to feed a part of the Openspace. So, each one of the systems is composed of a PV generator, storage batteries, regulator and an inverter to convert the output continous current into alternative current ( 230 volts). This produced current is feating perfectly the current supplied by the grid.
The PV generator set in the deck is composed of 24 PV madules made in Algeria by « Condor Electronics » of different technologies : single-crystal and polycrystalline. The peak power of each type is respectively of 150 WC and 155 WC. Each generator is made with three branches of four serial modules. The PV modules are directed to due south with an inclination of 26°.
PV generator
The electrochemical storage batteries used in this system are also made in Algeria by « Bergan Energy ». The nominal voltage of each battery is of 12 volts and their storage capacity (C120) is of 100 Ah. Eight batteries are set in each one of the two systems in order to reach a nominal voltage of 48 V and a total capacity of C120 = 200 Ah.
The used regulator load/unload of 48 V is a Victron Energy ‘Blue Solar Charge controller 150/70’, using the MPPT technology and withstands a PV Input voltage reaching 150 V and a current of 50 A. it can deliver a maximum output current of 70 A and a maximum power of 4000 W.
The used inverter is a Victron Energy ‘Phoenix 48V/3000W’, that presents a nominal power of 3kW under an input voltage of 48 V.
Storage batteries, regulators, inverters
The two implemented PV systems supply the top floor of the Openspace at the CDER. The last system provides the necessary energy for the whole space lighting with low energy consumption LED lamps. The second one is used to feed a desk computer and an acquisition system for data treatment and saving and a display screen.
Loads (Lighting, computern Datalogger,etc)
In addition of supplying clean electricity for the major part of this building with low energy consumption, these two systems will be used as test banches for researchers and engineers of the center to study this type of systems as well as the different components of the systems such as : solar batteries, inverters, regulators and single-cristal and polycristalline modules.
This pilot project shows that the CDER owns the necessary expertise ans is ready to put it on application in housing programmes integrating and using made in Algeria products and equipements.
In the same section
The Applied Research on Renewable Energies Unit (URAER) of Ghardaïa organized on October 12th to 15th, 2014, the 3rd edition of the international seminar on new and renewable energies.