gas engine combustion Articles
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Quantifying Combined Heat and Power (CHP) activity
In CHP plants without heat rejection facilities power, output is complementary to the recovery of heat, and all activity is cogeneration. CHP plants with heat rejection facilities can operate a mix of cogeneration and condensing activities. Quantifying the energy flows of both activities properly requires knowledge of the design power-to-heat ratios of the CHP processes (steam and gas turbines, ...
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The True Spark Lies in Clarke Energy
Clarke Energy is an authorised supplier of genuine gas and diesel engine spare parts in many countries across the globe. We proudly maintain stock of over $4m of INNIO Jenbacher and KOHLER spare parts throughout the South Pacific. At Clarke Energy we pride ourselves on integrity, delivering only the highest quality products and only supplying genuine, Original Equipment Manufacturer (OEM) spare ...
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Combined Heat and Power (CHP) essentials
'CHP essentials' introduces the concept of power and heat 'production possibility sets', starting at the cradle of CHP, i.e., the thermal power generation plant. The latter always occasions 'fatal' heat that is either recovered (the 'merit' of CHP) or wasted (condensing). This split paves the way to defining the production possibility sets of CHP plants, shown for steam turbines, internal ...
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Cleaning biogas with bacteria
Organic materials added to an anaerobic digester commonly contain sulphur components. During the anaerobic digestion process, the sulphur is converted into hydrogen sulphide (H2S), which is absorbed by the biogas. When the biogas produced in an AD plant goes on to be combusted in a gas engine or boiler, the H2S will give off sulphur dioxide (SO2) and sulphuric acid (H2SO4). It is for this reason ...
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Second-law analysis of an LPG-powered 4-stroke SI engine under variable stroke length and compression ratio
A second-law analysis of an LPG-powered, 4-stroke, single-cylinder, water-cooled, variable stroke length spark-ignition engine was carried out to assess the engine's energy efficiency. The engine was simulated at each stroke length/compression ratio combination. The second law of thermodynamics with the aid of the first law represents the results of entropy generation, reversible work output and ...
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Tronox Namakwa sands furnace Gas CHP Plant - Case Study
Tronox is the largest fully integrated producer of titanium ore and titanium dioxide in the world. The Tronox Mineral Sands cogeneration power generation plant, located in the Western Cape, uses the waste gas from two open arc DC furnaces as an energy source. The gas engine power plant operates on waste gas produced by titanium melting. The facility consists of 8 of GE’s JMS620GS-SL ...
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Study of the performance and exhaust emissions of a spark-ignited engine operating on syngas fuel
To resolve the problem of depletion of petroleum based liquid fuels, various solutions have been proposed. One of them is the use of gaseous fuels that are generated from the gasification of woods, namely syngas or wood-gas fuels, as full supplement fuels in spark ignition internal combustion (IC) engines. This fuel consists of nearly 40% combustible gases, mainly hydrogen and carbon monoxide ...
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Study of available exhaust gas heat recovery technologies for HD diesel engine applications
Diesel engines reject a considerable amount of energy to the ambience through the exhaust gas. Significant reduction of engine brake-specific fuel consumption (bsfc) could be attained by recovering a significant part of exhaust gas heat. Various techniques have been proposed in the past to recover exhaust energy: mechanical, electrical turbocompounding and Rankine Bottoming Cycles. In the present ...
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Study of the performance and emissions of a high-speed direct injection diesel engine operating on ethanoldiesel fuel blends
An experimental study is conducted to evaluate the effects of using various blends of ethanol with normal diesel fuel, in blend ratios of 5/95, 10/90 and 15/85, on the performance and exhaust emissions of a high-speed, direct injection (DI), Ricardo/Cussons 'Hydra' diesel engine. The tests are conducted using each of the above fuel blends or neat diesel fuel. Volumetric fuel consumption, exhaust ...
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Assessment of a CHP system based on economical, fuel consumption and environmental considerations
Combined heat and power (CHP) systems which are able to produce heating and power simultaneously, are getting more attention since they have many economical and environmental benefits. CHP systems for buildings are an important application of CHP on various systems designs. In this study, we have investigated a CHP system applicable for the building of Azad University of Shahrood. The prime mover ...
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EU regulation of combustion plant - A power industry perspective
Any installation that contains combustion plant with an aggregated thermal input greater than 50 MW is regulated under the Industrial Emissions Directive (IED) which requires that Best Available Techniques are applied to emissions control. Individual plant with a thermal input greater than 50 MW are regarded as Large Combustion Plant and additional provisions apply, including mandatory Emission ...
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The Most Effective Biochar Production Equipment On The Market
In order to produce charcoal, you have to have a product or service that can convert organic materials into burnable fuel. This could be everything from rice husks to municipal solid waste. It is also possible to convert rubber and plastic into fuel like charcoal. To do this, you may need a pyrolysis plant that may perform meet your needs. They include the reactor that can perform the conversion ...
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East Bay Municipal Utility District - 11-MW CHP System - Case Study
Quick Facts LOCATION: Oakland, California MARKET SECTOR: Wastewater Treatment Facility (WWTF) FACILITY SIZE: 65 million gallons per day FACILITY PEAK LOAD: 10 megawatts (MW) EQUIPMENT: 4.6-MW Solar Turbines Mercury 50™ gas turbine and 3 x 2.1-MW Enterprise engines FUEL: Digester gas USE OF THERMAL ENERGY: Digester heating CHP TOTAL EFFICIENCY: 80% ENVIRONMENTAL BENEFITS: Methane ...
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Landfills types of technologies for converting LFG into Energy
A number of factors, including the availability of an energy market, project costs, potential revenue sources, and other technical considerations, can determine which technologies are most appropriate for a particular landfill gas-to-energy (LFGE) project. Technologies for converting LFG into energy include the following. Electricity Generation Approximately 70 percent of the LFGE projects ...
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4 common types of exhaust pollution
At present, the four most common sources of waste gas pollution in life are industrial waste gas pollution, traffic tail gas pollution, garbage waste gas pollution, and domestic waste gas pollution. Among them, the impact of industrial waste gas pollution on the environment is very serious, mainly because the speed of industrial development is getting faster and faster, there are more and more ...
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Reduced Emissions for Landfill Gas Installations
The use of landfill gas as a source of renewable energy is increasing. For environmental and safety reasons, the owners of the waste storage sites have to strictly monitor and control the construction, operations, and emissions generated. Sulzer offers solutions to control these emissions within the limits given by the government. Landfill gas is similar to natural gas, but it is created by the ...
By Sulzer Ltd.
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Los Angeles County Sanitation Districts: Siloxane Removal
Los Angeles County Sanitation Districts have long been involved with recovering landfill and digester gas for energy to power turbines and internal combustion engines. Their experience led them to identify performance issues associated with these gases. One particular challenge is siloxanes. Cyclic organic silicon monomers (siloxanes) used in the manufacture of personal hygiene, health care and ...
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Building New Industries and Creating New Jobs in a Plan B Economy
Building a new economy, one that can sustain economic progress, involves phasing out old industries, restructuring existing ones, and creating new ones. This new economy will be powered by renewable sources of energy, will have a more diverse transport system--relying more on rail, buses, and bicycles, and less on cars--and will recycle everything. For example, coal use will be phased out, ...
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Fuel Cells Can Decarbonize California’s Buildings (While Keeping the Lights On)
California just faced historic blackouts. In fact, it endured three of the largest planned power outages in state history. The era of intentionally cutting off power to residents and businesses across the state to prevent wildfires – known as Public Safety Power Shutoffs (PSPS) – has arrived, and it’s highlighting the urgent need for energy solutions that address both the causes ...
By Bloom Energy
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Improve Boiler Efficiency
In many chemical plants, the electricity the plant uses is derived from a natural gas power plant or a co-generation plant burning waste gas streams. In large boilers (Figure 1), power plants bring together air and fuel (natural gas, waste gas, oil or coal) for combustion, which creates heat. The heat boils the water, creating steam. The steam runs through a turbine, which causes the turbine to ...
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