نتایج جستجو برای: pollutant emission

تعداد نتایج: 197034  

This paper presents some of the results of the modeling and simulation of an industrial furnace under the conventional combustion as well as under the highly preheated and diluted air combustion (HPDAC) conditions. The results are obtained using a computer program written by authors in FORTRAN language. It was found that, the HPDAC offers a more uniform and relatively moderate gas temperature p...

Journal: :Atmosphere 2023

Regulations for the control of air-pollutant emissions from ships within pollutant emission areas (ECAs) have been issued several years, but lack practical technologies and fundamental theory in implementation process remains a challenge. In this study, we designed model to calculate nitrogen-oxide-emission intensity sulfur content ship fuels using theoretical deduction law conservation mass. T...

2001
Sajal S. Pokharel Donald H. Stedman

Emission inventories from mobile sources have traditionally been obtained through computer modeling. This method, however, has intrinsic shortcomings in that ideal factors are included while real-world observations are left out. The model predictions have not correlated well with measurements from several studies. Recently, a fuel-based method of obtaining on-road emissions inventories has been...

2013
A. Imran M. A. Kalam

Fossil fuels are the most imperative parameters to flourish the every sphere of modern civilization including industrial development, transportation, power generation and easing the accomplishment of works. The rapid increase in usage of fossil fuel has unavoidable deleterious effect on environment. The international consciousness for environment protection is growing and ever more strict emiss...

2007
E. Brizio G. Genon

Within a urban context, the most important pollutants that should be studied and reduced in a urban context in order to ensure the sustainability of the metropolitan environment are NOx and PM10. While the emission factors for NOx are well known for all the sources, the PM emission from traffic are of two types, exhaust and nonexhaust. The latter type of emission is due to vehicle components’ w...

Journal: :Journal of environmental management 2004
Giorgio Guariso Guido Pirovano Marialuisa Volta

To develop sound air quality plans, regional authorities should have instruments that link the complex behaviour of pollutants both in time and space with costs of emission reduction. The problem is particularly important for ground level ozone which forms kilometres away, hours later from the emission of its precursors. To approach this problem, a method (1) to identify local pollutant-precurs...

Journal: :Marine pollution bulletin 2009
Eric D Stein Donald B Cadien

Billions of dollars have been invested over the past 35 years in reducing pollutant emissions to coastal environments. Evaluation of the effectiveness of this investment is hampered by the lack of long-term consistent data. A rare opportunity exists in southern California to evaluate the effectiveness of management actions by analyzing long-term monitoring of effluent, sediment, benthos, and fi...

Journal: :Bioresource technology 2003
A M Henihan M J Leahy J J Leahy E Cummins B P Kelleher

Gaseous emissions from the fluidised bed co-combustion of 50% w/w chicken litter and peat were monitored and recorded. Emission data were used to create a dispersion model for a proposed site on a poultry farm in Ireland. Variables within the combustion unit influenced both combustion and emission levels of pollutants such as SO(2) and NO(x), CO. Concentrations of atmospheric pollutants decreas...

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