Paper details

Title:

Influence of the Stalk Orientation on the Mechanical Properties of Biomass Briquettes

Author(s):

Ancans, D., Kakitis, A., Nulle, I.

Document(s):

Abstract:

Particle size and shape are of great importance for briquetting. It is generally agreed that biomass material of 6­8 mm size with 10­20% powdery component (< 4 mesh) gives the best results. Calculated energy ­1 ­1 consumption for hemp stalk cutting to mentioned size is > 12 kJ kgbut for size 100 mm it is <1 kJ kg. The goal of the investigation is to obtain the necessary density and durability of reed, straw and hemp briquettes of larger biomass particles by arranging them. The orientation of straw or reed stalks had to promote binding by the pressing operation. To compare strength parameters of different types of briquettes specific splitting force dependence on particle size was stated in laboratory experiments. The specific splitting force of arranged structure coarse chopped wheat straw and reed briquettes reaches value 35 N·mm­1. It is approximately the same as industrially produced wood briquettes. Briquettes from flattened reed stalks showed even better results. The specific splitting force was 1.3 times higher than for not flattened stalk briquettes. The specific splitting force of the hemp stalk briquettes is approximately 20% to 50% greater than the specific splitting force of reed briquettes.

Keywords:

briquette, energy, hemp, straw, reed, solid biofuels

Topic:

Processes for Fuels from Biomass

Subtopic:

Production and supply of solid biofuels

Event:

19th European Biomass Conference and Exhibition

Session:

VP3.1.5

Pages:

1942 - 1946

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-VP3.1.5

Price:

FREE