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1
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Pollutant concentrations from deciduous wood fuelled heat station

100%
Juszczak M.
Chemical and Process Engineering
|
2011
|
vol. 32
|
issue 1
41-55
EN
CO, NO, NO2 and dust concentrations from combustion of deciduous wood (birch, beech, lime-tree) logs and pellets in two heating boilers (15 and 25 KW), situated in a heat station were investigated. Time dependences of pollutant concentrations as well as the impact of temperature in the combustion chamber and oxygen concentration on pollutant concentrations were presented. Pollutant emission indices have been estimated.
2
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Verification of orthotropic model of wood

88%
Obara P., Obara P.
Archives of Civil Engineering
|
2018
|
vol. 64
|
issue 3
3
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Pollutant emission from a heat station supplied with agriculture biomass and wood pellet mixture

88%
Juszczak M., Lossy K.
Chemical and Process Engineering
|
2012
|
vol. 33
|
issue 2
231-242
EN
Tests for combustion of hay and sunflower husk pellets mixed with wood pellets were performed in a horizontal-feed as well as under-feed (retort) wood pellet furnace installed in boilers with a nominal heat output of 15 and 20 kW, located in a heat station. During the combustion a slagging phenomenon was observed in the furnaces. In order to lower the temperature in the furnace, fuel feeding rate was reduced with unaltered air stream rate. The higher the proportion of wood pellets in the mixture the lower carbon monoxide concentration. The following results of carbon monoxide concentration (in mg/m3 presented for 10% O2 content in flue gas) for different furnaces and fuel mixtures (proportion in wt%) were obtained: horizontal-feed furnace supplied with hay/wood: 0/100 - 326; 30/70 - 157; 50/50 - 301; 100/0 - 3300; horizontal-feed furnace supplied with sunflower husk/wood: 50/50 - 1062; 67/33 - 1721; 100/0 - 3775; under-feed (retort) furnace supplied with hay/wood: 0/100 - 90; 15/85 - 157; 30/70 - 135; 50/50 - 5179; under-feed furnace supplied with sunflower husk/wood: 67/33 - 2498; 100/0 - 3128. Boiler heat output and heat efficiency was low: 7 to 13 kW and about 55%, respectively, for the boiler with horizontal-feed furnace and 9 to 14 kW and 64%, respectively, for the boiler with under-feed furnace.
4
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Content available

Pollutant concentrations from deciduous wood fuelled heat station

88%
Juszczak M.
Chemical and Process Engineering
|
2011
|
issue 1
5
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Selection of Wood Based on Acoustic Properties for the Solid Body of Electric Guitar

88%
Zorič A., Kaljun J., Žveplan E., Straže A., Zorič A., Kaljun J., Žveplan E., Straže A.
Archives of Acoustics
|
2019
|
vol. 44
|
issue 1
6
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Pollutant emission from a heat station supplied with agriculture biomass and wood pellet mixture

75%
Juszczak M., Lossy K.
Chemical and Process Engineering
|
2012
|
issue 2
7
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Influence of moisture content of combusted wood on the thermal efficiency of a boiler

75%
Dzurenda L., Banski A.
Archives of Thermodynamics
|
2017
|
issue 1
8
Content available remote

Biomonitoring and assessing total mercury concentrations and pools in forested areas

51%
Nasr M., Arp P. A.
Biomonitoring
|
2015
|
vol. 2
|
issue 1
EN
This article focusses on the bio-monitoring of total Hg (THg), sulfur (TS) and carbon (TC) concentrations and pool sizes in forest vegetation and soil layers within the context of a maritime-to-inland transect study in southwestern New Brunswick. This transect stretches from the Grand Manan Island in the Bay of Fundy to the mainland coast (Little Lepreau to New River Beach) and 100 km northward to Fredericton. Along the Bay, frequent summer fogs are thought to have led to increased THg concentrations in forest vegetation and soils such that island THg > coast THg > inland THg concentrations. Transect sampling was done in two phases: (i) a general vegetation and soil survey, and (ii) focusing on specific soil layers (forest floor, top portion of the mineral soils), and select moss and mushrooms species. By way of multiple regression, it was found that soil, moss and mushroom THg and TS were strongly related to one another, with THg decreasing from the island to the inland locations. The accumulated Hg pool within the mineral soil, however, far exceeded (i) the estimated THg pools of the forest biomass (trees, moss and mushrooms) and the forest floor, and (ii) the literature-reported and case-study inferred net input/output rates for annual atmospheric Hg deposition and sequestration, Hg volatilization, and Hg leaching. Partitioning the total soil Hg pool into geogenically and atmospherically derived portions suggested that mineral soils in temperate to boreal forest regions have accumulated and retained atmospherically derived Hg over thousand years and more. These results are summarized in terms of further guiding forest THg monitoring and modelling efforts in terms of specific vegetation and soil sampling targets.
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