combustion chamber Articles
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The influence of injection system characteristics on the first- and second-law terms in high-speed DI diesel engines with swirl combustion chamber
In this investigation, the influences of fuel injection system characteristics on the first and second laws of thermodynamics are analysed in DI diesel engines with swirl combustion chamber. The first law analysis is done by using the results of KIVA Π code. The results show a good agreement with the experimental data. Also for the second law analysis during a closed cycle, a home made ...
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A diesel compound HCCI combustion engine based on injection strategy control
This paper presents a compound combustion technology of "Premixed Combustion" and "Lean Diffusion Combustion" for the purpose of realising the concept of homogeneous charge compression ignition (HCCI) combustion in a DI diesel engine. The premixed combustion is achieved by the technology of multi-pulse fuel injection. The start of pulse injection, injection-pulse number, injection period of each ...
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Experimental investigation of bio-diesel droplet ignition
In this work, the ignition delay of bio-diesel and its blends with diesel at one atmosphere pressure and at 900°C temperature has been studied. The results are compared to those for diesel oil. Specifically, the suspended fuel droplet was inserted into a hot furnace containing atmospheric air at temperatures, which varied from 600–900°C. The fuel droplet was suspended on the fine wire of diameter ...
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Thermodynamic evaluation of gas turbines for cogeneration applications
In this paper, the first and second laws of thermodynamics have been utilised to evaluate the performance of intercooled reheat regenerative gas turbine cogeneration plant. The effects of overall pressure ratio, cycle temperature ratio, pressure losses, and process steam pressure on energetic and exergetic efficiencies have been investigated. The results indicate that most of the exergy ...
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Separation of CO2 during combustion of coal in a pressurised fluidised bed
The combustion of coal is accompanied by CO2 emissions. This carbon dioxide can be separated from the flue gases in the Combustion Chamber (CC) by means of adsorption on calcium oxide (carbonation) which in turn can be regenerated in a calcination process. A description of the processes and the integration in a whole power station that serves a district heating network and generates electricity ...
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UK Abattoir – Rotary incinerator - Case Study
Designed to process animal remains 24 hours/day, 7 days/week, with the minimum of operator attendance. To optimise the plant’s performance and to enable waste to be processed and stored, irrespective of the status of the combustion plant, the waste is crushed into 50mm cubes. The material is then conveyed into a buffer hopper, which stores sufficient material to enable the plant to be left ...
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Combustion of advanced non-toxic hybrid propellants
Combustion characteristics and fuel regression behaviour have been studied for two fuels utilising 98% rocket-grade hydrogen peroxide (RGHP) as oxidiser. Two test series (A and C) involved a total of 13 firings of dicyclopentadiene (DCPD) fuel grains and series B involved nine firings of DCPD grains loaded with various amounts of lithium aluminium hydride, LiAlH4 (LAH). A laboratory-scale ...
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Pragmatic Efficiency Limits for Internal Combustion Engines
This article gives an overview of the thermodynamic principles demonstrating that the maximum efficiency theoretically possible with a hydrocarbon fueled internal combustion engine is one hundred percent. From this basis the focus turns to articulating irreversibilities that naturally occur within the processes of converting the chemical energy in the fuel into shaft work. These losses are ...
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Optimisation of the part-flow evaporative gas turbine cycles based on the exergy method
The evaporative gas turbine cycle is a new high-efficiency power cycle that has reached the pilot plant testing stage. The latest configuration proposed for this cycle is known as part flow evaporative gas turbine cycle (PEvGT) in which humidification is combined with steam injection. Having advantages of both steam injected and humid air cycles, it is regarded as a very desirable plant for ...
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Exergy analysis of the steam-injected gas turbine
In this paper, the effect of steam injection in the combustion chamber on the exergy efficiency of a gas turbine was investigated. Cycle exergy efficiency, net power output and exergy destruction have been calculated for different mass flow rates and temperature of the injected steam. The range of variation of the mass flow rate was between 0 and 5.24% of the design air flow rate, and the ...
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Gas Fired Oven
INDUSTRIAL GAS FIRED OVEN CONSTRUCTION An industrial Gas Fired Oven is typically of steel construction, comprised of inner and outer shells of sheet steel panels, separated by 4” thick, 6 lb/ft3 density mineral wool insulation. The panels are constructed as to minimize metal-to-metal contact between inner and outer shells and reduce heat flow from oven chamber to the exterior surface. ...
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Firecat Thermal Oxidizer Incinerator System - Case Study # 170103
PROJECT DETAILS Location: Longstreet,LA FlowRate: 13,500-36,000lb/hr(2.9–7.8MMSCFD) SupplyPressure: 2psig Aereon’sFIRECAT Thermal Oxidizer system is designed to destruct Acid Gas from a Midstream Client’s Processing Plant. The design of the system was based on an initial flow rate with expansion capacity availability. Our system was engineered to meet the very high ...
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Hydrogen-diesel dual fuel combustion in a direct injection diesel engine
Hydrogen is expected to be one of the most important fuels in the near future to meet the stringent emission norms. Hence in the present study, the combustion of hydrogen-diesel duel fuelled engine was investigated. Hydrogen was injected in the intake port during the suction stroke and diesel was injected inside the combustion chamber near TDC. The start of injection for hydrogen was maintained ...
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Natural Gas Compressor
Reciprocating engines come in all sizes, from a tiny, 10cc piston engine that powers a model airplane, to the massive Wartsila RTA 96-C, with each of its 14 cylinders displacing 1,820,000 cc. While our borescopes won’t be much help on the model airplane engine, if you work on any medium or large size reciprocating engine, the chances are good that we have a video borescope that can make ...
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Why are Dual Chamber Incinerators Best for Burning Medical Waste?
Dual chamber incinerators are well suited to the destruction of a wide range of medical waste types. Many of our medical incinerators feature autoloaders for continuous operation – as burn rates and performance are often improved by this optional extra. The quantities of waste and their calorific value will often dictate the overall performance of any waste management solution. Parts of a ...
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Exergy analysis of gas turbine – solid oxide fuel cell–based combined cycle power plant
Fuel cell technology is one of the promising systems for cleaner and competitive alternate power generation systems. When the high temperature fuel cells like solid oxide fuel cell and molten carbon fuel cell are integrated with the gas turbines, the total thermal efficiency of the combined cycle can be obtained greater than 60%. In the present work, thermodynamic analysis of SOFC–GT combined ...
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Development of automotive DI diesel engine to comply with stringent emission norms
Relatively lower fuel energy cost, higher fuel conversion efficiency and ability to take higher loads are the attracting features of direct injection diesel engines. However, diesel engines are still posing the challenges to both researchers and manufacturers in terms of high soot and NOx emissions. To overcome these difficulties, small diesel engine manufacturers are resorting to either upgrade ...
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Exergy and industrial ecology: an application to an integrated energy system
Exergy analysis can help integrate separate technologies following the principles of industrial ecology. An application of exergy analysis to calculate depletion numbers, which relate exergy destruction and total exergy use, is demonstrated for a gas turbine cycle combined with a hydrogen generation unit. The design includes a Solid Oxide Fuel Cell (SOFC) with internal natural gas reforming and a ...
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How-to calculate the Acid Dew Point (ADP) of flue gas
When flue gas reaches a temperature below the acid dew point, acidic elements will condense. The acids that are formed are highly corrosive for heat exchangers. Knowing the acid dew point of your flue gas enables you to select the appropriate materials for your installation. What is the Acid Dew Point? The acid dew point of flue gas is the temperature at which ...
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Sensitivity analysis and thermo-economic optimisation of Steam Injected Gas Turbine cycle design parameters
The purpose of the present work is to apply thermo-economic concepts to a Steam Injected Gas Turbine (STIG) electricity generation system and optimise it to indicate its economical advantages over a simple gas turbine. The system incorporates a combustion chamber, gas turbine, a compressor and a Heat Recovery Steam Generator (HRSG). A detailed sensitivity analysis was also performed to examine ...
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