Study of Basic Characteristics of Hydrogen Generator

2013 ◽  
Vol 448-453 ◽  
pp. 3078-3081 ◽  
Author(s):  
Jozef Fiala ◽  
Marcel Kuracina ◽  
Ivan Hrušovský ◽  
Maros Soldan
Keyword(s):  
Chemical Stability ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Water Solution ◽  
Internal Combustion ◽  
Gas Production ◽  
Combustion Engines ◽  
Hydrogen Generator ◽  
Naoh Solution ◽  
Basic Characteristics

HHO technology appeared in USA in 1950s but only in last years it became more interesting due to rising of fossil fuels price. In a device called HHO generator, hydrogen and oxygen are produced onboard on vehicle by electrolysis of water solution of NaOH or KOH. This mixture of gases is known as a HHO gas and it is used as an additive to gasoline in conventional internal combustion engines. Construction of a HHO generator is relatively simply process with small money requirements. All measurements were realized with 10% KOH solution because this electrolyte at this concentration is considered as the best available one. KOH solution excels in chemical stability and efficiency of HHO gas production. For comparison, the 10% NaOH solution was prepared because of low price and good availability of NaOH and all measurements were repeated and results were compared.

Experimental Studies on the Performance of C.I Engine with Fish Oil Methyl Ester as Fuel for Various Blends of Diesel and LPG

2015 ◽  
Vol 787 ◽  
pp. 687-691
Author(s):  
Tarigonda Hari Prasad ◽  
R. Meenakshi Reddy ◽  
P. Mallikarjuna Rao
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Fuels ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Research Work ◽  
Experimental Studies ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Inlet Manifold

Fossil fuels are exhausting quickly because of incremental utilization rate due to increase population and essential comforts on par with civilization. In this connection, the conventional fuels especially petrol and diesel for internal combustion engines, are getting exhausted at an alarming rate. In order to plan for survival of technology in future it is necessary to plan for alternate fuels. Further, these fossil fuels cause serious environmental problems as they release toxic gases into the atmosphere at high temperatures and concentrations. The predicted global energy consumption is increasing at faster rate. In view of this and many other related issues, these fuels will have to be replaced completely or partially by less harmful alternative, eco-friendly and renewable source fuels for the internal combustion engines. Hence, throughout the world, lot of research work is in progress pertaining to suitability and feasibility of alternative fuels. Biodiesel is one of the promising sources of energy to mitigate both the serious problems of the society viz., depletion of fossil fuels and environmental pollution. In the present work, experiments are carried out on a Single cylinder diesel engine which is commonly used in agricultural sector. Experiments are conducted by fuelling the diesel engine with bio-diesel with LPG through inlet manifold. The engine is properly modified to operate under dual fuel operation using LPG through inlet manifold as fuel along FME as ignition source. The brake thermal efficiency of FME with LPG (2LPM) blend is increased at an average of 5% when compared to the pure diesel fuel. HC emissions of FME with LPG (2LPM) blend are reduced by about at an average of 21% when compared to the pure diesel fuel. CO emissions of FME with LPG (2LPM) blends are reduced at an average of 33.6% when compared to the pure diesel fuel. NOx emissions of FME with LPG (2LPM) blend are reduced at an average of 4.4% when compared to the pure diesel fuel. Smoke opacity of FME with LPG (2LPM) blend is reduced at an average of 10% when compared to the pure diesel fuel.

scholarly journals The Study Influences the Jatropha-Diesel Mixing Ratio to the Formation of Soot Emissions in Diesel Exhaust Gases

2019 ◽  
Vol 4 (8) ◽  
pp. 80-84
Author(s):  
Van Quy Nguyen ◽  
Huu Cuong Le
Keyword(s):  
Alternative Fuels ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Environmentally Friendly ◽  
Fuel Mixture ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Mixing Ratio ◽  
Pollution Levels ◽  
Jatropha Seeds

To cope with the depletion of fossil fuels and the threat of exhaust pollution from internal combustion engines, research finds alternative fuels. Step by step to completely replace fossil fuels that will be exhausted in the future and environmentally friendly due to internal combustion engines is an urgent and important issue. Diversify fuel sources used for internal combustion engines and environmentally friendly when using Jatropha - Diesel fuel mixture. The paper focuses on studying the ability to use biodiesel derived from Jatropha seeds with the volume ratios of 5%, 10% and 15% on experimental engines. Thereby, it will analyze and evaluate the technical features and pollution levels of engines compared to pure fuels. Experimental study assessing the effect of Jatropha - Diesel mixing ratio on the emission formation compared with emissions in Vikyno EV2600 engines.

scholarly journals Why we should invest further in the development of internal combustion engines for road applications

2020 ◽  
Vol 75 ◽  
pp. 56 ◽  
Author(s):  
Luka Lešnik ◽  
Breda Kegl ◽  
Eloísa Torres-Jiménez ◽  
Fernando Cruz-Peragón
Keyword(s):  
Electric Vehicles ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Internal Combustion ◽  
High Energy ◽  
Liquid Fuels ◽  
Transport Sector ◽  
Combustion Engines ◽  
Road Transportation ◽  
Battery Capacity

The majority of on-road vehicles today are powered by internal combustion engines, which are, in most cases, burning petroleum-derived liquid fuels mixed with bio-components. The power to weight ratio of internal combustion engines combined with the high energy content of conventional fuels, which can be refilled easily in matter of minutes, makes them ideal for all kinds of road transportation. Since the introduction of EURO emissions norms, the emissions from the Transport sector in the European Union have undergone significant reduction. There are several alternatives to fossil fuels with similar properties, which can replace their usage in the Transport sector. The main focus of research in recent decades has been on biofuels, which can be produced from several sources. The production of biofuels is usually energy more intensive than production of fossil fuels, but their usage can contribute to emission reduction in the Transport sector. In recent years, a lot of effort was also put into promotion of electric vehicles as zero emissions vehicles. This statement should be reconsidered, since the greenhouse impact of electrical vehicles is not negligible. Conversely, in some cases, an electrical vehicle can have an even higher emission impact than modern vehicles with sophisticated internal combustion engines. This is characteristic for countries where the majority of the electricity is produced in coal power plants. With the decrease of greenhouse gas emissions in the Electricity Production sector, and with the increase of battery capacity, the role of electric vehicles in the Transport sector will probably increase. Despite significant research and financial investments in electric vehicles development, the transport sector in near future will be mostly powered by internal combustion engines and petroleum-derived liquid fuels. The amount of pollution from transport sector will be further regulated with stricter emission norms combined with smaller amount of alternative fuel usage.

scholarly journals Overview of the Green Hydrogen Applications in Marine Power Plants Onboard Ships

2018 ◽  
Vol 6 (01) ◽  
Author(s):  
Nader R. Ammar ◽  
Nayef F. S. H. Alshammari
Keyword(s):  
Fuel Cells ◽  
Gas Turbines ◽  
Power Plants ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Internal Combustion ◽  
Green Energy ◽  
Hydrogen Gas ◽  
Combustion Engines

The need for renewable and green energy sources to replace fossil fuel with the incrementally rising prices is driving many researchers to work on narrowing the gap between the most scientific innovative clean energy technologies and the concepts of feasibility and cost-effective solutions. The current paper aims to introduce one aspect of Green Energy; the use of Hydrogen as fuel for marine power plants, to replace all kinds of fossil fuels which are the major responsible of harmful emissions. There are three applications for hydrogen in marine field. These applications include hydrogen internal combustion engines, hydrogen gas turbines, and fuel cells. The main problems associated with the application of hydrogen in internal combustion engines are the engine knocking; air fuel ratio and intake temperature. The research programs for the application of hydrogen in gas turbines concentrate on studying the characteristics of hydrogen combustion inside gas turbine combustors. The third application of hydrogen is fuel cells. Huge developments have been achieved in this sector over the past few years. But for the marine field only the naval vessels market used it for auxiliary power generation.

scholarly journals Electric or Internal Combustion Engines for Passenger Cars? – Environmental and Economic Aspects

2022 ◽  
Vol 24 (1) ◽  
pp. B49-B58
Author(s):  
Zoran Čekerevac ◽  
Zdeněk Dvořák ◽  
Lyudmila Prigoda
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Point Of View ◽  
Combustion Engines ◽  
Liquefied Petroleum Gas ◽  
Passenger Cars ◽  
Compressed Natural Gas ◽  
Economic Point ◽  
Electric Cars ◽  
Basic Characteristics

The paper is focused on fuels, their users - engines and the end-user, the vehicles, from an environmental and economic point of view. The basic characteristics of potential fuels for internal combustion engines, as well as possible sources of electricity, are analysed. A comparative analysis of characteristics of vehicle propulsion with gasoline, diesel fuel, compressed natural gas, liquefied petroleum gas and electricity was performed. The research has shown that the application of vehicles with an electric motor is ecologically justified only in cases of obtaining electricity in an environmentally friendly way and that in other cases there is no profit in an ecological sense. From an economic point of view, if there were no subsidies to manufacturers and buyers of electric cars, they would not be competitive with internal combustion engines now. Within the research, potential solutions for reducing air pollution and improving the quality of life in cities have been proposed.

scholarly journals 3D CFD simulation of a gaseous fuel injection in a hydrogen-fueled internal combustion engine

2021 ◽  
Vol 312 ◽  
pp. 07001
Author(s):  
Alessio Barbato ◽  
Giuseppe Cantore
Keyword(s):  
Fuel Cells ◽  
Combustion Chamber ◽  
Alternative Energy ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Advanced Technology ◽  
Injection System ◽  
Combustion Engines

Nowadays, one of the hottest topic in the automotive engineering community is the reduction of fossil fuels. Hydrogen is an alternative energy source that is already providing clean, renewable, and efficient power being used in fuel cells. Despite being developed since a few decades, fuel cells are affected by several hurdles, the most impacting one being their cost per unit power. While waiting for their cost reduction and mass-market penetration, hydrogen-fueled internal combustion engines (H2ICEs) can be a rapidly applicable solution to reduce pollution caused by the combustion of fossil fuels. Such engines benefit from the advanced technology of modern internal combustion engines (ICEs) and the advantages related to hydrogen combustion, although some modifications are needed for conventional liquid-fueled engines to run on hydrogen. The gaseous injection of hydrogen directly into the combustion chamber is a challenge both for the designers and for the injection system suppliers. To reduce uncertainties, time, and development cost, computational fluid dynamics (CFD) tools appear extremely useful, since they can accurately predict mixture formation and combustion before the expensive production/testing phase. The high-pressure gaseous injection which takes place in Direct-Injected H2ICEs promotes a super-sonic flow with very high gradients in the zone between the bulk of the injected hydrogen and the flow already inside the combustion chamber. To develop a methodology for an accurate simulation of these phenomena, the SoPHy Engine of the Engine Combustion Network group (ECN) is used and presented. This engine is fed through a single nozzle H2-injector; planar laser-induced fluorescence (PLIF) data are available for comparison with the CFD outcomes.

scholarly journals DEVELOPMENT OF TECHNOLOGIES FOR NATURAL GAS AND BIOGAS UTILIZATION IN TRANSPORT / APSKATS PAR TRANSPORTA SEKTORĀ IZMANTOJAMĀM DABASGĀZES UN BIOGĀZES TEHNOLOĢIJĀM

2013 ◽  
Vol 50 (6) ◽  
pp. 26-35
Author(s):  
Y. Gelfgat ◽  
R. Smigins
Keyword(s):  
Air Quality ◽  
Natural Gas ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Internal Combustion ◽  
Transportation Costs ◽  
Combustion Engines ◽  
Gaseous Fuels ◽  
Gas Utilization

Abstract Popularity of methane-containing gaseous fuels has slowly been growing since their appearance, especially in the last decades. Occasional non-availability of liquid fossil fuels, the necessity to reduce the transportation costs and to improve the air quality are the basic factors which stimulated development of gas utilization technologies - from accumulation, compression and deflation of gas to its usage in internal combustion engines. Since then different solutions have been offered, and the authors are reviewing them - from the first use of natural gas to nowadays.

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