scholarly journals Air quality impact of carbon monoxide emission from diesel engine electric power generators

2019 ◽  
Vol 28 (3) ◽  
pp. 97-102
Author(s):  
Bamidele Sunday Fakinle ◽  
Oyetunji Babatunde Okedere ◽  
Sunday Adekunle Adebanjo ◽  
Adewole Johnson Adesanmi ◽  
Jacob Ademola Sonibare
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Diesel Engine ◽  
Electric Power ◽  
Power Generators ◽  
Carbon Monoxide Emission

scholarly journals Evaluation of carbon monoxide emissions of electric power generators used in buildings in Ibadan Metropolis, Nigeria

2020 ◽  
Vol 19 (4 (52)) ◽  
Author(s):  
Akeem Bolaji WAHAB
Keyword(s):  
Carbon Monoxide ◽  
Electric Power ◽  
Trend Analysis ◽  
Commercial Buildings ◽  
Control Mechanisms ◽  
Power Generators ◽  
The Core ◽  
Generating Sets ◽  
Kolmogorov Smirnov ◽  
Smirnov Test

Abstract: Poor supply of electricity to different settlements over the years in Nigeria has forced building occupants to shift to dependence on generators. This study thus determined outdoor and indoor carbon monoxide levels of generators used in both residential and commercial buildings and assessed its impact on the users and the environment. The study was carried out in Ibadan Metropolis, Nigeria, which was divided into core, transition and suburban zone respectively. Five (5) residential and commercial buildings respectively were purposively selected in each of the zones of the study area. The HT- 1000 digital LCD carbon monoxide meter was used to take measurements of the emissions of carbon monoxide with conformity to NESREA AND OSHA standards. The outdoor emission levels of the carbon monoxide before or during the use of generators were taken at 0, 2 and 4 m respectively from the external walls of the buildings sampled and the corresponding indoor measurements were taken internally at 1.2-1.5m above floor area. The data collected were analysed with the use of statistical methods such as t-test, trend analysis and Kolmogorov smirnov test. The results showed that outdoor and indoor measurements of carbon monoxide emissions levels were highest in buildings in the core zone either before or during the use of generating sets. Reduced carbon monoxide levels during use of generators were obtained at distance limits beyond 2 m from external walls of buildings across zones of the study area. In view of the measurements taken, being above limits set by statutory bodies, during use of generators, and its attendant effects on the environment and building occupants, it was recommended that its users should be enforced to position them in enclosures located away from external walls of buildings and government should license only sales of generating sets with emission control mechanisms.

Smart control strategy for effective hydrocarbon and carbon monoxide emission reduction on a conventional diesel engine using the pooled impact of pre-and post-combustion techniques

2021 ◽  
Vol 306 ◽  
pp. 127310
Author(s):  
Nadana Kumar Vinayagam ◽  
Anh Tuan Hoang ◽  
Jenoris Muthiya Solomon ◽  
Mohankumar Subramaniam ◽  
Dhinesh Balasubramanian ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Control Strategy ◽  
Emission Reduction ◽  
Carbon Monoxide Emission ◽  
Smart Control

Ambient noise from off-grid diesel engines electric power generators in an urban environment

2014 ◽  
Vol 25 (2) ◽  
pp. 186-199 ◽  
Author(s):  
Jacob Ademola Sonibare ◽  
Jamiu Adetayo Adeniran ◽  
Bamidele Sunday Fakinle ◽  
Ismaila O. Latinwo ◽  
Lukuman Adekilekun Jimoda ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Electric Power ◽  
Urban Environment ◽  
Diesel Engines ◽  
Noise Level ◽  
Ambient Noise ◽  
Content Type ◽  
Power Generators ◽  
Area Limit ◽  
Fence Line

Purpose – The aim of this paper is to investigate the impacts of the noise from the diesel engine power generators used for production activities in an urban environment. Design/methodology/approach – This study has used the Enterprise Edition of NoiseMap 2000 Version 2.7.1 to investigate the impacts of the noise from the diesel engines electric power generators used in a factory in Ikorodu, an urban environment in Lagos, Nigeria. Five sections of the factory with diesel engines electric power generators were considered. The immediate and distant environments covering about 10 km of the factory host environment were considered as receptors to the noise for this study. Findings – It was found out that when all the generators operate simultaneously in the factory, the ambient noise was 30.0-152.5 dB(A) with the minimum contribution within the factory being 70.0-84.4 dB(A) and the maximum contribution of 57.2-70.8 dB(A) outside the factory fence line. Though the maximum noise is 152.5 dB(A), the maximum noise of 70.8 dB(A) beyond the fence line shows a compliance with 70 dB(A) industrial and commercial area limit but breaches the 45 dB(A) and 55 dB(A) residential area limit of the World Bank. Research limitations/implications – As much as it would be desirable ambient noise level could not be measured in all the receptors’ locations covered by the modeling. However, the capability of the modeling software adopted makes this to have no negative impact on the quality of the findings of this study. Practical implications – The study will assist the public to determine the noise level safe region around diesel engine electric power generators. Originality/value – The paper highlights the challenges in which ambient noise from the use of off-grid generators used for industrial purposes could pose to the neighboring receptor environments.

STUDI PENENTUAN KOMPOSISI OPTIMUM CAMPURAN BAHAN BAKAR BIODIESEL–PETRODIESEL

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Cetane Number ◽  
Price Policy ◽  
Oxides Of Nitrogen ◽  
Fuel Price ◽  
Biodiesel Blend

Biodiesel is a viable substitute for petroleum-based diesel fuel. Its advantages are improved lubricity, higher cetane number and cleaner emission. Biodiesel and its blends with petroleum-based diesel fuel can be used in diesel engines without any signifi cant modifi cations to the engines. Data from the numerous research reports and test programs showed that as the percent of biodiesel in blends increases, emission of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) all decrease, but the amount of oxides of nitrogen (NOx) and fuel consumption is tend to increase. The most signifi cant hurdle for broader commercialization of biodiesel is its cost. In current fuel price policy in Indonesia (especially fuel for transportation), the higher percent of biodiesel in blend will increase the price of blends fuel. The objective of this study is to assess the optimum blends of biodiesel with petroleum-based diesel fuel from the technically and economically consideration. The study result recommends that 20% biodiesel blend with 80% petroleum-based diesel fuel (B20) is the optimum blend for unmodifi ed diesel engine uses.Keywords: biodiesel, emission, optimum, blend

Robust leader–follower synchronization of electric power generators

2021 ◽  
Vol 152 ◽  
pp. 104937
Author(s):  
Olaoluwapo Ajala ◽  
Alejandro D. Domínguez-García ◽  
Daniel Liberzon
Keyword(s):  
Electric Power ◽  
Power Generators

OPTIMIZATION OF GAS-DIESEL ENGINE REGULATION AS A METHOD OF IMPROVING ITS ECOLOGICAL CHARACTERISTICS

2021 ◽  
pp. 28-32
Author(s):  
VALERIY L. CHUMAKOV ◽  
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Diesel Fuel ◽  
Hydrocarbon Fuel ◽  
Load Range ◽  
Engine Operation ◽  
Exhaust Gases ◽  
Wide Range ◽  
Diesel Cycle

The paper shows some ways to improve the environmental characteristics of a diesel engine using gaseous hydrocarbon fuel and operating the engine in a gas-diesel cycle mode. Some possibilities to reduce toxic components of exhaust gases in a gas-diesel engine operating on liquefi ed propane-butane mixtures have been studied. Experiments carried out in a wide range of load from 10 to 100% and speed from 1400 to 2000 rpm showed that the gas-diesel engine provides a suffi ciently high level of diesel fuel replacement with gas hydrocarbon fuel. The authors indicate some eff ective ways to reduce the toxicity of exhaust gases. The engine power should be adjusted by the simultaneous supply of fuel, gas and throttling the air charge in the intake manifold. This method enriches the fi rst combusting portions to reduce nitrogen oxides and maintains the depletion of the main charge within the fl ammability limits of the gas-air charge to reduce carbon monoxide and hydrocarbons. The authors found that when the engine operates in a gas-diesel cycle mode, the power change provides a decrease in nitrogen oxide emissions of gas-diesel fuel only due to gas supply in almost the entire load range as compared to the pure diesel. At high loads (more than 80%) stable engine operation is ensured up to 90% of diesel fuel replaced by gas. Even at 10% of diesel fuel used the concentration of nitrogen oxides decreases by at least 15…20% as compared with a diesel engine in the entire load range. However, there is an increased emission of hydrocarbons and carbon monoxide in the exhaust gases. Further experimental studies have shown that optimization of the gas diesel regulation can reduce the mass emission of nitrogen oxides contained in exhaust gases in 2…3 times and greatly reduce the emission of incomplete combustion products – carbon monoxide and hydrocarbons.

scholarly journals Tropospheric Emission Spectrometer (TES) satellite observations of ammonia, methanol, formic acid, and carbon monoxide over the Canadian oil sands: validation and model evaluation

2015 ◽  
Vol 8 (12) ◽  
pp. 5189-5211 ◽  
Author(s):  
M. W. Shephard ◽  
C. A. McLinden ◽  
K. E. Cady-Pereira ◽  
M. Luo ◽  
S. G. Moussa ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Formic Acid ◽  
Model Evaluation ◽  
Oil Sands ◽  
Field Campaign ◽  
Infrared Observations ◽  
Multi Scale ◽  
Global Environmental ◽  
Scale Modelling

Abstract. The wealth of air quality information provided by satellite infrared observations of ammonia (NH3), carbon monoxide (CO), formic acid (HCOOH), and methanol (CH3OH) is currently being explored and used for a number of applications, especially at regional or global scales. These applications include air quality monitoring, trend analysis, emissions, and model evaluation. This study provides one of the first direct validations of Tropospheric Emission Spectrometer (TES) satellite-retrieved profiles of NH3, CH3OH, and HCOOH through comparisons with coincident aircraft profiles. The comparisons are performed over the Canadian oil sands region during the intensive field campaign (August–September, 2013) in support of the Joint Canada–Alberta Implementation Plan for Oil Sands Monitoring (JOSM). The satellite/aircraft comparisons over this region during this period produced errors of (i) +0.08 ± 0.25 ppbv for NH3, (ii) +7.5 ± 23 ppbv for CO, (iii) +0.19 ± 0.46 ppbv for HCOOH, and (iv) −1.1 ± 0.39 ppbv for CH3OH. These values mostly agree with previously estimated retrieval errors; however, the relatively large negative bias in CH3OH and the significantly greater positive bias for larger HCOOH and CO values observed during this study warrant further investigation. Satellite and aircraft ammonia observations during the field campaign are also used in an initial effort to perform preliminary evaluations of Environment Canada's Global Environmental Multi-scale – Modelling Air quality and CHemistry (GEM-MACH) air quality modelling system at high resolution (2.5 × 2.5 km2). These initial results indicate a model underprediction of ~ 0.6 ppbv (~ 60 %) for NH3, during the field campaign period. The TES/model CO comparison differences are ~ +20 ppbv (~ +20 %), but given that under these conditions the TES/aircraft comparisons also show a small positive TES CO bias indicates that the overall model underprediction of CO is closer to ~ 10 % at 681 hPa (~ 3 km) during this period.

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