Cel THIS IS AN EXTENSION OF THE WORK CARRIED OUT UNDER A PREVIOUS CONTRACT NO. 173-76-EE-F. IN THIS CONTRACT, CERCHAR STUDIED THE POSSIBILITY OF HEAT RECOVERY IN THE COKE INDUSTRY. FOR THE PRODUCTION OF ONE TONNE OF SIDERURGICAL COKE, ON AVERAGE 1100 KWH IS CONSUMED, OF WHICH 33 % IS LOST DURING THE COOLING OF COKE, 23 % IN DISTILLATION GASES WHICH LEAVE THE FURNACE AT 700 DEGREES C AND 20 % IN EXHAUST GASES. IN THAT CONTRACT THE POSSIBILITIES FOR HEAT RECOVERY FROM DISTILLATION GASES WERE FURTHER DEVELOPED. TESTS IN THE LABORATORY AND IN THE COKE FACTORY ENABLED THE DESIGN OF A RECOVERY SYSTEM CONSISTING OF TWO HEAT EXCHANGERS IN SERIES WHICH ARE USED TO PRODUCE SUPER-HEATED STEAM. DESIGNS HAVE BEEN MADE FOR A PILOT FACILITY FOR ONE COKE FURNACE AND FOR AN INDUSTRIAL INSTALLATION WORKING WITH ABOUT 30 FURNACES. THE PRESENT CONTRACT INVOLVES TESTING OF A SINGLE SHELL AND TUBE HEAT EXCHANGER AT THE PLANT TO RECOVER SENSIBLE HEAT FROM DISTILLATION GASES AT 750 - 800 DEGREES C. (THE SET OF TWO HEAT EXCHANGERS IS ALSO TO BE STUDIED BUT IS NOT INCLUDED IN THIS CONTRACT). DESIGN CALCULATIONS AS WELL AS DISCUSSIONS WITH THE HEAT EXCHANGER MANUFACTURERS HAVE BEEN CARRIED OUT. THE HEAT EXCHANGER WAS CONSTRUCTED AND INSTALLED AT THE MARIENAU COKE FACTORY FOR TESTING. IT HAD A DIAMETER OF O.4 M AND A LENGTH OF 3.8 M AND CONTAINED 39 TUBES. THE DISTILLATION GASES CIRCULATEDIN THE CARBON STEEL TUBES WHILE THE STEAM CIRCULATED IN THE SHELL. THE HEAT EXCHANGE WAS COCURRENT AND THERE WAS ONE PASSAGE OF GASES. THE DESIGN CONSISTED IN OPTIMISING THE HEAT EXCHANGER IN ORDER TO MAINTAIN THE INSIDE TUBE TEMPERATURE ABOVE 425 DEGREES C. IN THIS WAY CONDENSATION OF THE TAR CONTAINED IN THE DISTILLATION GASES WOULD BE AVOIDED. Program(-y) PRE-ENNONUC 2C - Energy research and development programme (EEC), 1979-1983 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania Data not available Koordynator Centre d'Etudes et Recherches des Charbonnages de France (CERCHAR) Wkład UE Brak danych Adres 60550 Verneuil-en-Halatte Francja Zobacz na mapie Koszt całkowity Brak danych
