scholarly journals Wymagania i perspektywy rozwoju jakości olejów napędowych przeznaczonych do eksploatacji szczególnie w warunkach komunikacji miejskiej z uwzględnieniem ochrony środowiska

2004 ◽  
Vol 2 (1) ◽  
pp. 431-449
Author(s):  
Krzysztof Biernat
Keyword(s):  
Environmental Protection ◽  
Urban Traffic ◽  
Liquid Fuels ◽  
Exhaust Gas ◽  
Fuel Feed ◽  
Diesel Fuels

Combustion of liquid fuels including diesel fuels is one of the major processes influencing the condition of the environment. Requirements for the quality of diesel fuels are related to the development of the construction of fuel feed systems, combustion and exhaust gas systems, and also with growing expectations from environmental protection. In the article are shown basic connections between standards of diesel fuels used in urban traffic described by proper norms and exploitation overworks and environmental expectations. Developmental tendencies of the quality of those fuels are also mentioned.

Engine-based test method for determining the ignition quality of diesel fuels

MTZ worldwide ◽  
2013 ◽  
Vol 74 (11) ◽  
pp. 54-61
Author(s):  
Karl Huber ◽  
Johann Hauber
Keyword(s):  
Test Method ◽  
Diesel Fuels ◽  
Ignition Quality

scholarly journals Solid Biomass to Medium CV Gas Conversion With Rich Combustion

2019 ◽  
Author(s):  
Gordon E. Andrews ◽  
Aysha Irshad ◽  
Herodotus N. Phylaktou ◽  
Bernard M. Gibbs
Keyword(s):  
Cone Calorimeter ◽  
Fixed Bed ◽  
Radiant Heat ◽  
Exhaust Gas ◽  
Sensible Heat ◽  
Gas Temperature ◽  
Heated Sample ◽  
Fuel Feed ◽  
The Rich ◽  
Solid Biomass

Abstract A modified cone calorimeter for controlled atmosphere combustion was used to investigate the gases released from fixed bed rich combustion of solid biomass. The cone calorimeter was used with 50 kW/m2 of radiant heat that simulated a larger gasification system. The test specimen in the cone calorimeter is 100mm square and this sits on a load cell so that the mass burn rate can be determined. Pine wood was burned with fixed air ventilation that created rich combustion at 1.5–4 equivalence ratio, Ø. The raw exhaust gas was sampled using a multi-hole gas sample probe in a discharge chimney above the cone heater, connected via heated sample lines, filters and pumps to the heated Gasmet FTIR. The FTIR was calibrated for 60 species, including 40+ hydrocarbons. The hydrogen in the gas was computed from the measured CO concentration using the water-gas shift reaction. The exhaust gas temperature was also measured so that the sensible heat from the gasification zone was included in the energy balance. The GCV of the pine was 18.8 MJ/kgpine and at the optimum Ø the energy in the rich combustion zone gases was 14.5 MJ/kgpine, which is a 77% energy conversion from solid biomass to a gaseous fuel feed for potential gas turbine applications. This conversion efficiency is comparable with the best conventional gasification of biomass and higher than most published conversion efficiencies for coal gasifiers. Of the energy in the gas from the rich combustion 35% was from the CO, 20% from hydrogen, 35% from hydrocarbons and 10% sensible heat. Ash remained in the rich burning gasification zone. As the biomass is a carbon neutral fuel there is no need to convert the gasified gases to hydrogen, with the associated energy losses.

scholarly journals Environmental entrepreneurship and public policy: the case of the Programa Emprender para la Vida (Entrepreneurship for Life Program)

2018 ◽  
Vol 34 (61) ◽  
Author(s):  
Adriana María Arroyave Puerta ◽  
Flor Ángela Marulanda Valencia
Keyword(s):  
Quality Of Life ◽  
Public Policy ◽  
Environmental Protection ◽  
Metropolitan Area ◽  
Public Policies ◽  
The Public ◽  
Colombian Government ◽  
Depth Interviews

Nowadays, several mega-trends capture the attention of governments, academia and the public in general given their implications for the quality of life and the development of nations. This work deals with two of them: entrepreneurship and environmental protection, as a result of research aimed at analyzing the processes, actors and results of the “Entrepreneurship for Life” Program led by the Valle de Aburrá Metropolitan Area, executed during the period from 2012 to 2015, in order to contribute to the improvement of public policies on eco-entrepreneurship. The methodology of the Synergy System1, applied by the Colombian Government, was used to appraise public policies. The required information was collected through in-depth interviews with the creator of the program, the entrepreneurs who benefited from it, officials of the entities involved and experts. Then, it was complemented by the analysis of documents such as minutes, reports and other sources. Among other results, it was evident that, although the public policy on environmental entrepreneurship is still incipient, the evaluated Program met the objectives for which it was created.

scholarly journals Q-Learning Neural Controller for Steam Generator Station in Micro Cogeneration Systems

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5334
Author(s):  
Krzysztof Lalik ◽  
Mateusz Kozek ◽  
Szymon Podlasek ◽  
Rafał Figaj ◽  
Paweł Gut
Keyword(s):  
Numerical Model ◽  
Control Systems ◽  
Steam Generator ◽  
Full Range ◽  
Combustion Process ◽  
Liquid Fuels ◽  
Control Algorithms ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
The Impact

This article presents the results of the optimization of steam generator control systems powered by mixtures of liquid fuels containing biofuels. The numerical model was based on the results of experimental research of steam generator operation in an open system. The numerical model is used to build control algorithms that improve performance, increase efficiency, reduce fuel consumption and increase safety in the full range of operation of the steam generator and the cogeneration system of which it is a component. In this research, the following parameters were monitored: temperature and pressure of the circulating medium, exhaust gas temperature, oxygen content in exhaust gas, percentage control of oil burner power. Two methods of controlling the steam generator were proposed: the classic one, using the PID regulator, and the advanced one, using artificial neural networks. The work shows how the model is adapted to the real system and the impact of the control algorithms on the efficiency of the combustion process. The example is considered for the implementation of advanced control systems in micro-, small- and medium-power cogeneration and trigeneration systems in order to improve their final efficiency and increase the profitability of implementation.

Ecological aspects of storage and transportation of diesel fuels

2021 ◽  
pp. 49-54
Author(s):  
V.Kh. Nurullayev ◽  
◽  
Kh.G. Ismayilova ◽  
L.M. Shikhiyeva ◽  
◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Fractional Composition ◽  
Freezing Temperature ◽  
Environmental Safety ◽  
Petroleum Products ◽  
Oil Products ◽  
Jet Fuels ◽  
Diesel Fuels ◽  
Ecological Aspects

The paper presents up-to-date and perspective requirements for the quality of diesel fuels. The effect of chemical, as well as fractional composition on the quality of diesel fuels is marked. The capability of obtaining prospective ecologically friendly diesel fuel based on the mixture of Azerbaijani oils via hydro-treatment in the presence of the catalyst of alumonickelmolibdene is noted. Ecologically friendly diesel fuels with ASTMD 4294 by sulfur - 0.039 % mass, ASTMD 3227 by sour sulfur - 0.006 % mass, ASTMD 5708 by metals: V ˃ 2 mg/kg, Ni ˃ 1 mg/kg, Fe ˃ 3 mg/kg, Na ˃ 8 mg/kg, as well as with the freezing temperature of ASTMD 97 – 50 оС have been obtained. Such kinds of diesel fuel meet EN standards and provide environmental safety in storage and transportation to the European countries. The prospect of obtaining and using buffer plug (mixture of petroleum products) during consistent pumping of various sorts of oil products without ecologic-economic risks of jet fuels is shown as well.

Article 37 CFR

2019 ◽  
Author(s):  
Tobias Lock
Keyword(s):  
Sustainable Development ◽  
Environmental Protection ◽  
High Level

A high level of environmental protection and the improvement of the quality of the environment must be integrated into the policies of the Union and ensured in accordance with the principle of sustainable development.

The Impact of Awareness Regarding Environmental Protection Laws on Ecological Degradation

2022 ◽  
pp. 31-43
Author(s):  
Atul Bamrara
Keyword(s):  
Environmental Protection ◽  
Environmental Degradation ◽  
Rural Areas ◽  
Labour Force ◽  
Developed Countries ◽  
Global Environmental ◽  
Level Of Economic Development ◽  
Per Capita ◽  
The Impact

Global environmental troubles are gaining significance because of the speedy and antagonistic speed of urbanization. Environmental degradation restricts the flow of environmental services. Dumping of pollutants in excess of its assimilative capacity into air, water, and soil results in deterioration of the quality of these vital resources. The nature of environmental problem depends upon the level of economic development and the geographical condition of the area under consideration. India being a developing economy with a low per capita income, high population density, agriculture-dependent labour force, and high percentage of rural areas, the problems here are different from those in developed countries. The chapter highlights the impact of knowledge regarding environmental protection issues on environmental degradation.

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