INTERNATIONAL CONFERENCE BERBI 2008 SOLAR COOLING SESSION. Amor OUNALLI, Karim NEFZI Perpignan, 5th May 2008

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1 Agence Nationale pour la Maîtrise de l Énergie PROJET MEDISCO INTERNATIONAL CONFERENCE BERBI 2008 SOLAR COOLING SESSION Amor OUNALLI, Karim NEFZI Perpignan, 5th May 2008 MEDiterranean food and agro Industry applications of Solar COoling Technologies

2 Project data Project full title: MEDiterranean food and agro Industry applications of Solar COoling technologies Proposal : Acronym : MEDISCO Program : FP6 Call : FP INCO-MPC Instrument : STREP - SPECIFIC TARGETED RESEARCH OR INNOVATION PROJECT Duration : 36 months Activity : INCO-2004-B1.5

3 The project consortium Role Short name Full name Coordinator POLIMI Politecnico di Milano, Dipartimento di Energetica Partner n 2 ISE Fraunhofer Institute for Solar Energy systems Partner n 3 ROBUR Robur - innovative products for heating, cooling Partner n 4 TECSOL TECSOL Partner n 5 ADEME ADEME Partner n 6 ANME Tunisian National Agency for Conservation of Energy Partner n 7 CDER Moroccan Centre for Development of Renewable Energies Partner n 8 EEAA Egyptian Environmental Affairs Agency Partner n 9 CCG Cantina Calatrasi Grombalia Partner n 10 HS CIMNE Partner n 11 PX SME from Tunisia Partner n 12 PY SME from Egypt

4 Workpackage workpackages WP0 WP1 WP2 WP3 WP4 WP5 WP6 WP7 Activities management du projet Caractérisation du secteur agroalimentaire et classification des technologies Conception, développement et dimensionnement des concepts de production de froid solaire Ingénierie Tests expérimentaux Evaluation de la technologie Analyse du marché Dissémination des résultats

5 First Solar cooling plant in Tunisia Site industriel Tunisien «DOMAINE NEFERIS» Localité: Grombalia Latitude: N Longitude:10 34 E Altitude: 50m Domaine Neferis 2006

6 First Solar cooling plant in Tunisia Domaine Neferis - March 2008 Domaine Neferis 2006

7 Solar cooling system : scheme Fresnel collector Absorption chiller Storage tank Expansion vessel Circulation system Control System Monitoring system

8 Solar cooling system : layout paper Cold utilities Cold production

9 Solar cooling system : concept paper pipeline and components isolation COLD WATER Lying PI sp. 50mm sp. 60mm >100 sp. 60mm 1 " o n air / buried Exter nal diameter MEDISCO - SOLAR COOLING PLANT DOMAIN NEFERIS - GROMBALIA - TUNISIA PROCESS & INSTRUMENT DIAGRAM --- MED-A-01

10 Fresnel collector Type: PSE Fresnel solar collector; Module: 4 modules, length 4 m, width 7.5 m per module; Total surface of mirrors : 88 m2; Maximum pressure: 16 bars; Maximum temperature: 200 C; maximum working temperature: 180 C

11 The collector is composed of 11 rows of mirrors and a central tube, According to the GPS clock and the sun irradiation the mirrors go to focalize into the central tube to heat the water. A control system associated to the collector adjust the working parameters of the collector.

12 The collector have his own instruments to collect the external parameters (GPS clock, irradiation, temperature ) to check running parameters of the collector.

13 Absorption chiller Type: Robur model ACF LB; Nominal thermal power inlet: kw; Nominal frigorific power outlet: kw; Work temperature:120 C Water outlet temperature: -10 C

14 Cold storage tank Type: atmospheric cold storage tank capacity :3 m3 fluid used: water-glycol (35%) to rich low temperatures (-10 C)

15 Main control system A main control system is used to control all the component of the solar cooling system: solar collector, chiller, pumps, valves Manual and automatic are enable to be used for running the system. Manual mode is dedicated to the maintain and test procedure but the automatic mode is the normal running mode and it can be set on timing interval or in irradiation interval. Errors and running problems can be detected according to an alarm system.

16 Thankyou foryour attention Contact person Dr. Mario Motta Dipartamento di Energetica - Politecnico di Milano Piazza Leonardo da Vinci, Milano Italy