BS EN 14918:2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Solid biofuels. Determination of calorific value
Hardcopy , PDF
31-08-2017
English
31-03-2010
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Preparation of test sample
8 Calorimetric procedure
9 Calibration
10 Gross calorific value
11 Precision
12 Calculation of net calorific value at constant pressure
13 Test report
Annex A (normative) - Adiabatic bomb calorimeters
Annex B (normative) - Isoperibol and static-jacket bomb
calorimeters
Annex C (normative) - Automated bomb calorimeters
Annex D (informative) - Checklists for the design and
procedures of combustion experiments
Annex E (informative) - Examples to illustrate the main
calculations used in this document when an automated
bomb calorimeter is used for determinations
Annex F (informative) - List of symbols used in this document
Annex G (informative) - Key-word index
Annex H (informative) - Default values of most used biofuels
for the calculations of calorific values
Annex I (informative) - Flow chart for a routine calorific
value determination
Bibliography
Defines a method for the determination of the gross calorific value of a solid biofuel at constant volume and at the reference temperature 25 degrees C in a bomb calorimeter calibrated by combustion of certified benzoic acid.
Committee |
PTI/17
|
DevelopmentNote |
Supersedes DD CEN/TS 14918 & 09/30198714 DC. (03/2010)
|
DocumentType |
Standard
|
Pages |
64
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy | |
Supersedes | |
UnderRevision |
This European Standard 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.
Standards | Relationship |
EN 14918:2009 | Identical |
ISO 1928:2009 | Solid mineral fuels Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value |
PREN 15289 : DRAFT 2010 | SOLID BIOFUELS - DETERMINATION OF TOTAL CONTENT OF SULFUR AND CHLORINE |
EN 14774-2:2009 | Solid biofuels - Determination of moisture content - Oven dry method - Part 2: Total moisture - Simplified method |
ISO 10304-1:2007 | Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate |
PREN 15234-1 : DRAFT 2010 | SOLID BIOFUELS - FUEL QUALITY ASSURANCE - PART 1: GENERAL REQUIREMENTS |
PREN 14780 : DRAFT 2010 | SOLID BIOFUELS - SAMPLE PREPARATION |
ISO 651:1975 | Solid-stem calorimeter thermometers |
ISO 652:1975 | Enclosed-scale calorimeter thermometers |
EN 14774-1:2009 | Solid biofuels - Determination of moisture content - Oven dry method - Part 1: Total moisture - Reference method |
EN 14774-3:2009 | Solid biofuels - Determination of moisture content - Oven dry method - Part 3: Moisture in general analysis sample |
CEN/TS 15289:2006 | Solid Biofuels - Determination of total content of sulphur and chlorine |
EN ISO 10304-1:2009 | Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate (ISO 10304-1:2007) |
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