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CSA ISO 18125:21

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Solid biofuels — Determination of calorific value (Adopted ISO 18125:2017, first edition, 2017-04)

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Solid biofuels — Determination of calorific value (Adopted ISO 18125:2017, first edition, 2017-04)

Scope

This document specifies a method for the determination of the gross calorific value of a solid biofuel at constant volume and at the reference temperature 25 °C in a bomb calorimeter calibrated by combustion of certified benzoic acid. The result obtained is the gross calorific value of the analysis sample at constant volume with all the water of the combustion products as liquid water. In practice, biofuels are burned at constant (atmospheric) pressure and the water is either not condensed (removed as vapour with the flue gases) or condensed. Under both conditions, the operative heat of combustion to be used is the net calorific value of the fuel at constant pressure. The net calorific value at constant volume may also be used; formulae are given for calculating both values. General principles and procedures for the calibrations and the biofuel experiments are presented in the main text, whereas those pertaining to the use of a particular type of calorimetric instrument are described in Annexes A to C. Annex D contains checklists for performing calibration and fuel experiments using specified types of calorimeters. Annex E gives examples to illustrate some of the calculations.


SDO CSA: Canadian Standards Association
Document Number
Publication Date Jan. 1, 2021
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2021 CSA ISO 18125:21 Revision
Jan. 1, 2021 CSA ISO 18125:F21 Revision