emissions analysis Articles
-
Experimental method for marine engine’s emissions analysis
Abstract The world is considering various solutions to reduce exhaust emissions, the use of alternative fuels and the development of more efficient marine engines. IMO the company gave guidance for future borders of individual exhaust components, taking into account a variety of applications and conditions for the operation of marine engines. Engine manufacturers have been forced to ...
-
A methodology to estimate NMVOC biogenic emissions: sensitivity analysis and first application in Lombardy
This work describes a methodology to estimate NMVOCs from vegetation in the Lombardy region. The proposed method is a "bottom-up" one: starting from local data, at a municipality level, emissions have been estimated across Lombardy. By changing the different land use species assignment and the other site-specific inputs, it is possible to apply this methodology to any area. Two NMVOC ...
-
Modelling and simulation with experimental verification of hydrogen-diesel dual-fuel premixed combustion and emission analysis
This paper deals with an application of advanced simulation methods to the modelling of Duel-Fuelled engines (Hydrogen/Diesel) in which the premixed Hydrogen gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a modified combustion model. The influence of main engine parameters i.e., injection advance, and various percentages ...
-
Key trends and drivers in greenhouse gas emissions in the EU in 2015 and the past 25 years
Publication Created 31 May 2017 Published 01 Jun 2017 Topics: Climate change mitigation This briefing summarises the main findings of the EU’s 2017 greenhouse gas (GHG) inventory submission under the United Nations Framework Convention on Climate Change (UNFCCC) and of the EEA’s analysis of GHG emission trends in the EU between 1990 and 2015. It is underpinned by a more ...
-
The Canadian Regulatory Framework for carbon trading: Sailing away from consensus while waiting for the U.S. Federal Scheme
There is a lot of controversy on Parliament Hill in Canada regarding the greenhouse gas policy to be enacted. It is very difficult to assess the latest proposed framework without suggesting a political view or without analysing the economic context of Canadian actors involved in the emissions trading market. The purpose of this article is to briefly articulate the main controversial issue of said ...
-
Modelling emission trends from non-constant time series of PM10 concentrations in Christchurch, New Zealand
This paper presents an attempt to model the trend of emissions through analysis of a time series of PPM10 concentrations in Christchurch, New Zealand. Emissions are not constant over time, but show high seasonality. Fluctuations are removed by creating a time series in which concentrations do not show dependency on ambient air temperature. Remaining meteorological influences are removed through ...
-
Effect of exergy optimisation on a cogeneration system's CO2 emissions according to different demand patterns
The objective of this work is to verify how different operational strategies affect the CO2 emissions of a cogeneration system according to different demand patterns. The operation strategies studied were focused in running cost and exergetic efficiency. The results show that the optimal exergetic efficiency strategy generated the highest emissions reduction. The operation with the highest ...
-
Combustion, performance and emission analysis of diesel engine fuelled with methyl esters of Pongamia oil
The methyl esters of vegetable oils, known as biodiesel are increasingly becoming popular because of their low environmental impact and potential as a green alternative fuel for diesel engine, and that they would not require significant modification of existing engine hardware. Methyl ester of Pongamia oil (PME) is derived through transesterification process. Experimental investigations have been ...
-
`Challenges and problems in performing a CPM BACT analysis,` presented at the 2009 air & waste management association`s annual conference
Abstract Condensable Particulate Matter (CPM) can represent a significant portion of ParticulateMatter (PM) emissions from a heated exhaust. Since CPM can readily convert tosubmicron particles in the atmosphere under low temperature, CPM analysis can be amajor component of the analysis of PM-2.5 emissions (such as Best Available ControlTechnology analysis) in the near future. While representing ...
-
Exergy analysis of combustion characteristics and NOx emissions of a dual–fuel engine
The combustion characteristics and NOx emissions of compression ignition engines working on a dual fuel mode are investigated numerically and their exergetic efficiencies are determined. The model has been validated with available experimental results. The simulation results show that dual fuel engine combustion and trend of NOx emissions are well predicted by the present model. Parametric study ...
-
Automotive Development and Progress in HORIBA`s Emission Measurement Technologies
The progress in HORIBA's emissions measurement systems has been closely connected to trends in vehicle development. Innovations in automotive technology, stemming from emission regulations and implementation of computer control systems, have especially had great influence on analytical technologies. With the advent of emission regulations, HORIBA developed its first automotive emission analyzer, ...
-
Evaluation of environmental impact and gaseous emissions of biodiesel fuels and blends of selected feed-stocks
Thermal and gaseous emissions of biodiesel feed-stocks: sandbox tree, fluted pumpkin, black date and wild melon whose potentials as biodiesel fuels have been established in the earlier works of Igbum et al. (2012) were evaluated in order to ascertain and establish their environmental and emission impacts on the local and global environment. Effects of blending ratios on the thermal/gaseous ...
-
Map of the Month – Single-Wall Carbon Nanotubes
Welcome to Edinburgh Instruments monthly blog celebrating our work in Raman, Photoluminescence, and Fluorescence Lifetime Imaging. Every month we will highlight our pick for Map of the Month to show how our spectrometers can be used to reveal all the hidden secrets in your samples.AugustSingle-wall carbon nanotubes (SWCNTs) have unique electrical, thermal, mechanical, and optical properties which ...
-
Enhanced photocatalytic activity of CeO2 using
β -cyclodextrin on visible light assisted decoloration of methylene blueAn attempt has been made to enhance the photocatalytic activity of CeO2 for visible light assisted decoloration of methylene blue (MB) dye in aqueous solutions by β-cyclodextrin (β-CD). The inclusion complexation patterns between host and guest (i.e., β-CD and MB) have been confirmed with UV–visible spectral data. The interaction between CeO2 and β-CD has also ...
-
An experimental investigation of the performance and emissions characteristics of a direct injection compression ignition engine running with LPG
Existing diesel engines are under stringent emission regulation particularly of smoke and particulate matter in their exhaust. The potential benefits of using liquefied petroleum gas (LPG) as an alternative fuel in diesel engines are both economical and environmental. In the present paper an experimental research was carried out on an I.C. engine laboratory single cylinder, four-stroke variable ...
-
An assessment of operations of oil-exporting countries in terms of energy consumption and carbon dioxide emissions
Energy consumption and carbon dioxide emissions from 16 oil-exporting countries are studied using Data Envelopment Analysis using indicators representing economic growth, energy consumption and emissions. The analysis for 1996 shows that Norway, Gabon and Nigeria are efficient and that Russia is inefficient. Malmquist Productivity Index analysis shows that there is progress in achieving higher ...
-
Conditional eco-efficiency measure from the perspective of pollution emission firms
This paper proposes a conditional eco-efficiency measure with constraints to profit and pollution goals from the perspective of pollution emission firms. The measure is obtained not only by comparing the relative performance to other decision-making units (DMUs), but also by comparing the existing level relative to expected profit and pollution goals. We use the proposed measure to appraise the ...
-
Endogenous learning and technology clustering: analysis with MARKAL model of the Western European energy system
The paper describes experience gained from experiments with the comprehensive energy system model MARKAL for Western Europe, including endogenous technology learning based on the learning by doing mechanism. These experiments have confirmed the benefits expected from adoption of the mechanism. An important issue, often overlooked in relatively simple energy system models is the notion of ...
-
Political Measures for Strategic Environmental Policy with External Effects
This paper investigates an environmental policy designed to reduce the emission of pollutants under uncertainty, with the agent problem as an optimal stopping problem. We first analyze the two cases in which there are one agent and two competing agents by following Ohyama and Tsujimura (2005). When we consider a model of strategic agents, we need to analyze the external economic effect that is ...
-
Getting every ton of emissions right: An analysis of emission factors for purchased electricity in China
In China, there are widespread errors on emission factors used to account for indirect emission from purchased electricity at the organizational level. Based on analysis of this working paper, if the wrong emission factors are used to account for purchased electricity in 2010, it could lead to over-estimation up to 49 percent in GHG emissions. Authors of this working paper argue that using ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you