COSTIC - Programme SOLHEATCOOL PROGRAMME SOLHEATCOOL STUDY AND DEVELOPMENT OF HEATING / COOLING SYSTEMS USING RENEWABLE ENERGY COSTIC - Comité Scientifique et Technique des Industries Climatiques - Eric MICHEL Enerbuild Participant number : 37

COSTIC - Programme SOLHEATCOOL PROJECT PARTNERS COSTIC Research centre - Technical co-ordinator JACQUES GIORDANO INDUSTRIES - France Manufacturer of solar collectors VELTA - Germany Manufacturer of heating / cooling floors ZAE BAYERN - Germany Manufacturer of absorption heat pump IMPAE / NOA - Greece Modelling of the system

COSTIC - Programme SOLHEATCOOL RESEARCH TOPIC TO DEVELOP A SOLAR HEATING / COOLING SYSTEM COMPOSED OF : Absorption heat pump Solar thermal collectors Heating / cooling floor

COSTIC - Programme SOLHEATCOOL RESEARCH TOPIC

COSTIC - Programme SOLHEATCOOL BACKGROUND Existing reversible systems : Conventional heat pump Gas absorption heat pump using LiBr / water with power over 100 kW Aim of the programme : To design a HCFC free heating cooling systems using renewable energies for small or medium buildings Type of buildings : Surface : about 300 m² Tertiary sector - little collective housing

COSTIC - Programme SOLHEATCOOL PROJECT OBJECTIVES To study the application of a floor system for cooling To study high performance solar thermal collectors To study a Lithium bromide / Water absorption heat pump To study the complete heating / cooling system

COSTIC - Programme SOLHEATCOOL STUDY OF THE HEATING / COOLING FLOOR SYSTEM Tests achieved in climatic cell Study of the influence of parameters on the heat exchange coefficient : Objective was to obtain heat exchange coefficient around 7 W/m².K Testing of a system : inertia - reaction of the control

COSTIC - Programme SOLHEATCOOL STUDY OF THE HEATING / COOLING FLOOR SYSTEM MEASURE OF THE HEAT EXCHANGE COEFFICIENT

COSTIC - Programme SOLHEATCOOL STUDY OF THE HEATING / COOLING FLOOR SYSTEM HEAT EXCHANGE REPARTITION 1,9 W / m² K 5,5 W / m² K

COSTIC - Programme SOLHEATCOOL STUDY OF CONTROL Measurement of the response to a pseudo step of supply water temperature Measurement of the response of a floor system to several scenarios Slow and mean increase of the external dew point Fast increase of the external dew point Fast increase of the load Cycle with internal inputs and solar load simulation Results Control must insure a fast reaction of water temperature to variation of the dew point in order to limit risks of condensation on the floor

COSTIC - Programme SOLHEATCOOL STUDY OF THE SOLAR COLLECTORS C8 prototypes CORTEC prototype Improvements brought to the collectors New selective coating to improve the efficiency New welding process : laser welding to allow an on line production

COSTIC - Programme SOLHEATCOOL STUDY OF THE SOLAR COLLECTORS C8 COLLECTORS

COSTIC - Programme SOLHEATCOOL STUDY OF THE SOLAR COLLECTORS CORTEC CORTEC with laser welding CORTEC Objective = 0,89 - 2,5  T/H

COSTIC - Programme SOLHEATCOOL STUDY OF THE ABSORPTION HEAT PUMP Status of the task The construction of the prototype is on going. This task was foreseen in 1999 but our partner who was manufacturer of the prototype has gone bankrupt in A new partner (ZAE BAYERN) began to work in September The duration of the programme has been extended of 15 months until September 2001

COSTIC - Programme SOLHEATCOOL CONCLUSION (1) Study of the heating / cooling floor system Measurement of the heat exchange coefficient Sizing of the whole system Study of the working of the control Objectives reached Study of the solar collectors Measurement of the performances of some prototypes Objectives reached Study of the AHP (on going) Work foreseen : measurement of the performance according to several parameters (boiler temperature, evaporator temperature, cooling tower temperature)

COSTIC - Programme SOLHEATCOOL CONCLUSION (2) Study of the whole system Connection of the different part of the system and measurement of the performances Modelling Modelling of the working and preparation of a handbook and a data basis of the results of the modelling End of the programme : September 2001