ISO INTERNATIONAL STANDARD 13579-3 First edition 2013-01-15 Industrial furnaces and associated processing equipment Method of measuring energy balance and calculating efficiency - Part 3: Batch-type aluminium melting furnaces Fours industriels et équipements associés-Méthode de mesure du bilan énergetique et de calcul de I'efficacité - Partie 3: Fours dormants de fusion pour I'aluminium Reference number ISO 13579-3:2013(E) @ ISO 2013 THS unde Not for Resale ISO 13579-3:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or isO's memberbody in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ ISO 2013 - All rights reserved itted without license from IHS Not for Resale ISO 13579-3:2013(E) Contents Page Foreword Introduction. .vi 1 Scope 2 Normative references.. 3 Terms and definitions. 3.1 Terms related to type of energy used in this part of Iso 13579, 4 Symbols.. 5 Basic principles. 5.1 General 5.2 Energy flow diagram .... 5.3 Process Heating Assessment Survey Tool 6 Basicconditionsofmeasurementandcalculation. .9 6.1 State of furnace ... 6.2 6.3 Unit of specific energy intensity .. 6.4 Reference conditions... 6.5 Unit of amount of gas.. 6.6 9 7 Type of energy used in this part of Iso 13579 .9 7.1 General... .9 7.2 Energy balance... 10 7.3 Thermal energy balance .. 7.4 Energy balance of electrical generation 7.5 Recycled energy.... .13 8 Measurement method.. .13 8.1 General 8.2 13 8.3 Atomization agent ..... .13 8.4 Combustion air and exhaust gas. 14 8.5 Products. 14 8.6 Temperature of furnace surface 8.7 Furnaceinnerwalltemperature 16 8.8 Inner furnace pressure... 16 8.9 16 8.10 Electrical auxiliary equipment.... 8.11 Generation of utilities... 16 8.12 Recycled energy. 16 9 Calculation . 17 9.1 General provisions... 17 9.2 Total energy input . 17 9.3 Total energy output. 18 9.4 Total energy efficiency.. 20 10 Energy balanace evaluation report.. 21 Annex A (informative) Reference data.. 22 Annex B (informative) Measurement of energy balance and calculation of efficiency of a batch- type aluminium melting furnace sample report ........... ii Copyrght International OrganizaionforStandardizalonghts reserved se from IHS Not for Resale