Objective THE OBJECTIVES OF THIS PROJECT ARE : - DEVELOPMENT OF A MEASURING MMETHODOLOGY WITH WHICH THE "BUILDING ENERGY SIGNATURE" (BES) CAN BE DETERMINED. THE BES WILL BE DETERMINED BEFORE AND AFTER POST-INSULATION OF EXISTING HOUSES IN ORDER TO CHECK THE EFFICIENCY OF POST-INSULATION. - DEVELOPMENT OF CHEAPER POST-INSULATION METHODS. - IMPROVEMENT OF METHODS FOR CAVITY WALL INSULATION. A SIMPLE STEADY STATE COMPUTER SIMULATION MODEL WAS DEVELOPED, TAKING INTO ACCOUNT : AIR INFILTRATION, TRANSMISSION LOSSES AND GRATUITIOUS ENERGY FROM SOLAR IRRADIATION. WITH THIS MODEL IT WAS SHOWN THAT SOLAR RADIATION GIVES A CONSIDERABLE CONTRIBUTION. THE BES OF A HOUSE CAN THEREFORE NOT ONLY BE GIVEN BY THE OUTDOOR TEMPERATURE AND THE WORKING PERIOD OF THE HEATING SYSTEM AS A FUNCTION OF TIME, BUT SHOULD ALSO INCLUDE SOLAR DATA. A COMPUTER CONTROLLED MEASURING SYSTEM CAREN HAS BEEN DEVELOPED WHICH IS ABLE TO DETERMINE ALL REQUIRED PARAMETERS FOR BES DETERMINATION. THE SYSTEM WAS TESTED AND OPERATED SATISFACTORILY. IN ORDER TO CHECK THE QUALITY OF INSULATING MATERIAL A METHOD HAS BEEN DEVELOPED BY WHICH THE INSULATION PROPERTIES CAN BE DETERMINED. THEY DEPEND ON THE AVERAGE CELL SIZE AND THE PERCENTAGE OF THE VOLUME WHICH IS OCCUPIED BY AIR. THESE DATA CAN BE DETERMINED WITH A MICROSCOPE. POST INSULATION OF CORRUGATED STEEL SHEETING ROOFS WAS STUDIED. THE ROOFS WERE COVERED WITH 100 MM HEAVY MINERAL WOOL. THE DETERIORATION OF THE SURFACE DUE TO WEATHERING AFTER 1 1/2 YEAR WAS NEGLIGABLE FOR ROCKWOOL AND 2 MM FOR GLASS WOOL. THE PAYBACK TIME OF A 100 MM ROCKWOOL COVER IS +/- 14 YEARS. POST INSULATION OF FACADES WITH FREELY EXPOSED INSULATION HAS A PAYBACK TIME BETWEEN 7 AND 19 YEARS. RESEARCH WAS ALSO CARRIED OUT TO IMPROVE METHODS FOR CAVITY WALL INSULATION. THIS WORK WAS DONE IN COLLABORATION WITH THE DIK (DANISH INSULATION CONTROL BOARD) OF WHICH 200 COMPANIES ARE MEMBER AND WHICH ALLOWS A RAPID DIFFUSION OF THE R AND D RESULTS. Programme(s) PRE-ENNONUC 2C - Energy research and development programme (EEC), 1979-1983 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator BYGGETEKNIK EU contribution No data Address TECHNOLOGICAL INSTITUTE DEPT.FOR BUILDING TECHNIQUE P.O. BOX 141 2630 Denmark See on map Total cost No data
