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Measuring chemical heat production rates of biofuels by isothermal calorimetry for hazardous evaluation modelling

In English

Författare

Summary, in English

Biofuels are commonly stored in large stacks that may heat up and self-ignite from microbiological and chemical heat production. This paper shows how isothermal (heat conduction) calorimetry can be used to measure heat production rates of biofuels at relatively low temperatures close to where self-heating starts to become a problem. Measurements can be made to assess how the reaction rate is a function of such factors as temperature, extent of reaction, oxygen pressure, water content and the presence of catalytic compounds. In the present paper, measurements on pellets made of wood and bark are presented together with an analysis of how the reaction rate of the bark pellets depends on the oxygen pressure. It is also shown that 1% iron or copper ions increased the reaction rate of wood pellets by a factor of three. Copyright (c) 2006 John Wiley & Sons, Ltd.

Publiceringsår

2007

Språk

Engelska

Sidor

241-255

Publikation/Tidskrift/Serie

Fire and Materials

Volym

31

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley & Sons Inc.

Ämne

  • Materials Engineering

Nyckelord

  • isothermal calorimetry
  • hazardous evaluation
  • thermal power
  • pellets
  • biofuel

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1099-1018