Textiles. Synthetic filament yarns. Determination of shrinkage in dry-hot air (after treatment)

2015 ◽  
Keyword(s):  
Hot Air ◽  
Synthetic Filament

Determination of Antioxidant Activity of Edible Calendula Flowers by Hot-air Drying Time

2018 ◽  
Vol 26 (4) ◽  
pp. 202-208
Author(s):  
Sang Im Oh ◽  
Seo Young Kim ◽  
Ja Hee Lee ◽  
Ae Kyung Lee
Keyword(s):  
Antioxidant Activity ◽  
Hot Air Drying ◽  
Drying Time ◽  
Air Drying ◽  
Hot Air

Influence of the Position of Ignition Source on the Raw Materials Used to Produce Biofuel in Form of Wood Pellets

2014 ◽  
Vol 693 ◽  
pp. 335-339
Author(s):  
Jozef Horváth ◽  
Karol Balog ◽  
Tomáš Chrebet
Keyword(s):  
Raw Materials ◽  
Beech Wood ◽  
Ignition Source ◽  
Wood Pellets ◽  
Hot Air ◽  
Spruce Wood ◽  
Loss Of Weight ◽  
Materials Used ◽  
Picea Excelsa

The aim of present work is monitoring thermal decomposition tested samples depending on distance of ignition source, subsequent generation of flame and flameless combustion. Tested samples are used to produce biofuel in form of pellets, which can be made of spruce wood (Picea excelsa, L.) and beech wood (Fagus sylvatica) and have a direct effect on the properties of these pellets. Measurements are carried out according to standard STN ISO 871:2010 Determination of ignition temperature using a hot-air furnace. External ignition source (electrically heated spiral of the wire canthal) is used to analyze different conditions of test samples. Distance between external ignition source and tested samples is 10, 50 and 90 mm. The experiments are performed at an air flow rate 38, 25, 12,5 and 0 mm.s-1. The results show the rate of loss of weight and the flow rates of the material of the test samples at the different test conditions.

Study of Thermal Degradation of Polymers

2013 ◽  
Vol 652-654 ◽  
pp. 1664-1667 ◽  
Author(s):  
Ivana Turekova ◽  
Zuzana Turňová ◽  
Karol Balog ◽  
Martin Pastier
Keyword(s):  
Thermal Degradation ◽  
Ignition Temperature ◽  
Loss Rate ◽  
Mass Loss Rate ◽  
Combustion Process ◽  
Hot Air ◽  
Controlled Burning ◽  
Important Position ◽  
Fire Characteristics

This article deals with measurements of selected waste polymers in the combustion process. The technology of controlled burning occupies an important position in the process of waste disposal. Therefore it is necessary to assess the behaviour of materials in the process of thermal degradation by fire characteristics. An experiment was conducted in accordance with standard STN ISO 871: 2010 Plastics. Determination of ignition temperature using a hot-air furnace. There were studied a mass loss rate of the samples in their degradation and also monitored some products of combustion.

Sign in / Sign up

Export Citation Format

Share Document