Size, shape and flow characterization of ground wood chip and ground wood pellet particles
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چکیده
منابع مشابه
Dangerous (toxic) atmospheres in UK wood pellet and wood chip fuel storage
There is growing use of wood pellet and wood chip boilers in the UK. Elsewhere fatalities have been reported, caused by carbon monoxide poisoning following entry into wood pellet storage areas. The aim of this work was to obtain information on how safely these two fuels are being stored in the UK. Site visits were made to six small-scale boiler systems and one large-scale pellet warehouse, to a...
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سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...
A Simple Alphanumeric Classification of Wood Debris Size and Shape
of wood debris size and shape is proposed for use in river and stream channel surveys and restoration projects. Dividing wood debris length and diameter into seven categories, respectively distinguished by an alphanumeric code, results in a total of forty-nine distinct size and shape categories. Intended to be analogous to the phi class intervals used to characterize channel bed substrate, this...
متن کاملHot-water Extraction of Ground Spruce Wood of Different Particle Size
Hot-water extraction of hemicelluloses, especially galactoglucomannans, from fractions of ground spruce wood with different particle sizes was studied at 170°C with extraction times up to 60 min. Extraction of spruce sapwood, heartwood, and thermomechanical pulp (TMP) was also compared at 160 to 180°C. Static batch extractions were carried out in an accelerated solvent extractor (ASE). The extr...
متن کاملComparative Durability of Untreated Wood in Use Above Ground
Cross-brace units constructed of 10 different. softwoods and nine different hardwoods were exposed on a test fence in Wisconsin for up to 22 years. Sapwood was included for all species and heartwood for some. The objective of this study was to determine the above-ground longevity of these woods against decay. The wood was classified into above-ground decay resistance groups. The longevity spans...
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ژورنال
عنوان ژورنال: Powder Technology
سال: 2016
ISSN: 0032-5910
DOI: 10.1016/j.powtec.2016.07.016