scholarly journals Differential responses of soil nitrogen‐oxide emissions to organic substitution for synthetic fertilizer and biochar amendment in a subtropical tea plantation

GCB Bioenergy ◽  
2021 ◽  
Author(s):  
Zhaoqiang Han ◽  
Jinyang Wang ◽  
Pinshang Xu ◽  
Zhutao Li ◽  
Shuwei Liu ◽  
...  
Keyword(s):  
Nitrogen Oxide ◽  
Soil Nitrogen ◽  
Nitrogen Oxide Emissions ◽  
Tea Plantation ◽  
Synthetic Fertilizer ◽  
Differential Responses ◽  
Biochar Amendment

EFFECTS OF WOODY VEGETATION ENCROACHMENT ON SOIL NITROGEN OXIDE EMISSIONS IN A TEMPERATE SAVANNA

2003 ◽  
Vol 13 (4) ◽  
pp. 897-910 ◽  
Author(s):  
Roberta E. Martin ◽  
Gregory P. Asner ◽  
R. James Ansley ◽  
Arvin R. Mosier
Keyword(s):  
Nitrogen Oxide ◽  
Soil Nitrogen ◽  
Woody Vegetation ◽  
Nitrogen Oxide Emissions ◽  
Vegetation Encroachment

Controls on soil nitrogen oxide emissions from forest and pastures in the Brazilian Amazon

2001 ◽  
Vol 15 (4) ◽  
pp. 1021-1030 ◽  
Author(s):  
Diana C. Garcia-Montiel ◽  
Paul A. Steudler ◽  
Marisa C. Piccolo ◽  
Jerry M. Melillo ◽  
Christopher Neill ◽  
...  
Keyword(s):  
Nitrogen Oxide ◽  
Soil Nitrogen ◽  
Brazilian Amazon ◽  
Nitrogen Oxide Emissions

Measurement of soil nitrogen oxide emissions at three North American ecosystems

1991 ◽  
Vol 96 (D1) ◽  
pp. 1033 ◽  
Author(s):  
E. J. Williams ◽  
F. C. Fehsenfeld
Keyword(s):  
Nitrogen Oxide ◽  
Soil Nitrogen ◽  
North American ◽  
Nitrogen Oxide Emissions

scholarly journals Unusually high soil nitrogen oxide emissions influence air quality in a high-temperature agricultural region

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
P. Y. Oikawa ◽  
C. Ge ◽  
J. Wang ◽  
J. R. Eberwein ◽  
L. L. Liang ◽  
...  
Keyword(s):  
High Temperature ◽  
Air Quality ◽  
Nitrogen Oxide ◽  
Soil Nitrogen ◽  
Nitrogen Oxide Emissions ◽  
Agricultural Region ◽  
High Soil

Soil nitrogen cycling and nitrogen oxide emissions along a pasture chronosequence in the humid tropics of Costa Rica

1999 ◽  
Vol 31 (3) ◽  
pp. 387-394 ◽  
Author(s):  
Edzo Veldkamp ◽  
Eric Davidson ◽  
Heather Erickson ◽  
Michael Keller ◽  
Antje Weitz
Keyword(s):  
Costa Rica ◽  
Nitrogen Oxide ◽  
Nitrogen Cycling ◽  
Soil Nitrogen ◽  
Humid Tropics ◽  
Nitrogen Oxide Emissions ◽  
Soil Nitrogen Cycling

Control of Nitrogen Oxide Emissions for Nitric Acid Plants

Pollution ◽  
1973 ◽  
pp. 278-287 ◽  
Author(s):  
H. G. Rigo ◽  
W. J. Mikucki ◽  
M. L. Davis
Keyword(s):  
Nitric Acid ◽  
Nitrogen Oxide ◽  
Nitrogen Oxide Emissions

scholarly journals Possibilities of Simultaneous In-Cylinder Reduction of Soot andNOxEmissions for Diesel Engines with Direct Injection

2008 ◽  
Vol 2008 ◽  
pp. 1-13 ◽  
Author(s):  
U. Wagner ◽  
P. Eckert ◽  
U. Spicher
Keyword(s):  
Nitrogen Oxide ◽  
Diesel Engines ◽  
Fuel Injection ◽  
Soot Formation ◽  
Soot Oxidation ◽  
The Other ◽  
Injection System ◽  
Nitrogen Oxide Emissions ◽  
Injection Strategy ◽  
Soot Emissions

Up to now, diesel engines with direct fuel injection are the propulsion systems with the highest efficiency for mobile applications. Future targets in reducingCO2-emissions with regard to global warming effects can be met with the help of these engines. A major disadvantage of diesel engines is the high soot and nitrogen oxide emissions which cannot be reduced completely with only engine measures today. The present paper describes two different possibilities for the simultaneous in-cylinder reduction of soot and nitrogen oxide emissions. One possibility is the optimization of the injection process with a new injection strategy the other one is the use of water diesel emulsions with the conventional injection system. The new injection strategy for this experimental part of the study overcomes the problem of increased soot emissions with pilot injection by separating the injections spatially and therefore on the one hand reduces the soot formation during the early stages of the combustion and on the other hand increases the soot oxidation later during the combustion. Another method to reduce the emissions is the introduction of water into the combustion chamber. Emulsions of water and fuel offer the potential to simultaneously reduceNOxand soot emissions while maintaining a high-thermal efficiency. This article presents a theoretical investigation of the use of fuel-water emulsions in DI-Diesel engines. The numerical simulations are carried out with the 3D-CFD code KIVA3V. The use of different water diesel emulsions is investigated and assessed with the numerical model.

Carbon, sulfur and nitrogen oxide emissions from combustion of pulverized raw and torrefied biomass

Fuel ◽  
2017 ◽  
Vol 188 ◽  
pp. 310-323 ◽  
Author(s):  
Xiaohan Ren ◽  
Rui Sun ◽  
Xiaoxiao Meng ◽  
Nikita Vorobiev ◽  
Martin Schiemann ◽  
...  
Keyword(s):  
Nitrogen Oxide ◽  
Nitrogen Oxide Emissions ◽  
Torrefied Biomass

scholarly journals EXPERIENCE OF THE DEVELOPMENT OF BURNERS, CHAMBERS, AND TECHNOLOGIES FOR REDUCING EMISSIONS OF NITROGEN OXIDES BY BOILERS DURING THE COMBUSTION OF NATURAL GAS

2019 ◽  
pp. 70-79
Author(s):  
I.Ya. Sigal ◽  
A.V. Smikhula ◽  
O.I. Sigal
Keyword(s):  
Natural Gas ◽  
Nitrogen Oxides ◽  
Nitrogen Oxide ◽  
National Academy Of Sciences ◽  
Nitrogen Oxide Emissions ◽  
Two Stage ◽  
Immediate Reconstruction ◽  
Boiler Units ◽  
Reduce Emissions ◽  
The 1960S

In the article discusses the features of constructive solutions accepted in the burner devices and chambers of boiler units, which were used both when converting solid fuel boilers to natural gas, and creating new designs of gas boiler units. The works to reduce nitrogen oxide emissions at the Gas Institute of the National Academy of Sciences of Ukraine began in the 1960s and by 1971 significant results had been achieved was shown. The main methods and technical solutions that are used to reduce emissions of nitrogen oxides during the combustion of natural gas in boilers of various capacities, including 300 MW power units, are considered. The principal design of a two-stage burner, which are operated in an amount of more than 2000 units in Ukraine and the CIS countries is presented. The installed two-stage burner devices for combustion of natural gas require immediate reconstruction with bringing their indicators to the calculated ones at the first stage. The modernization of the exist ing two-stage burners is possible to achieve the readings of the EU emissions directive 2010/75/EU was shown. The most promising technologies for further reducing the level of nitrogen oxide emissions less than 100 mg/Nm3 (3% O2, dry gases) when burning natural gas were shown. Bibl. 38, Fig.4, Tab. 1.

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