ISO 1928:2009 固体矿物燃料 量热弹法测定总热值及净热值的计算

标准编号:ISO 1928:2009

中文名称:固体矿物燃料 量热弹法测定总热值及净热值的计算

英文名称:Solid mineral fuels — Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value

发布日期:2009-06

标准范围

ISO 1928:2009规定了在25°C基准温度下,在通过燃烧认证苯甲酸校准的弹式热量计中,在恒定体积下测定固体矿物燃料总热值的方法。所得结果为分析样品在恒定体积下的总热值,燃烧产物中的所有水均为液态水。在实践中,燃料在恒定(大气压)压力下燃烧,水不会凝结,而是作为蒸汽与烟气一起排出。在这些条件下,工作燃烧热是燃料在恒定压力下的净热值。也可以使用恒定体积下的净热值;给出了计算这两个值的方程式。校准和燃料试验的一般原则和程序见正文,而与使用特定类型的量热仪有关的一般原则和程序见附件。还提供了使用指定类型的热量计进行校准和燃料试验的检查表,以及说明部分计算的示例。

ISO 1928:2009 specifies a method for the determination of the gross calorific value of a solid mineral fuel at constant volume and at the reference temperature of 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, fuel is burned at constant (atmospheric) pressure and the water is not condensed but is removed as vapour with the flue gases. Under these conditions, the operative heat of combustion is the net calorific value of the fuel at constant pressure. The net calorific value at constant volume can also be used; equations are given for calculating both values.General principles and procedures for the calibrations and the fuel tests are presented in the main text, whereas those pertaining to the use of a particular type of calorimetric instrument are described in annexes. Checklists for performing calibration and fuel tests using specified types of calorimeters and examples illustrating some of the calculations are also given.

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