boiler efficiency Articles
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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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Utilisation of waste coal dust of steel industry for power generation
The present paper describes the generation of waste coal-dust from steel industry and its utilisation for generation of power in power plant. The main objective of the work is to utilise the heat energy of coal dust into useful work and propose a combination of coal and coal dust supplying system to the boiler. The work started with the collection and analysis of the coal dust. The physical ...
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Ottawa Hospital, Ottawa Heart Institute, Ottawa, Ontario, Canada
Boiler Plant Application Objective The turnkey FLU-ACE waste heat recovery system was installed by Thermal Energy on four boiler exhausts from a power plant which produced a peak (winter) steam rate of 70,000 lbs/h. The system was designed to recover 10 mmBTU/h of otherwise wasted energy. The recovered heat is used to heat the the world-famous University of Ottawa Heart Institute Research ...
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The “Tipping” Point of High Turndown Ratios: How much of a good thing is too much?
Boilers used for domestic water and space heating are one of the highest energy consumers in residential and commercial facilities. After the global energy crisis in the 1970s, higher fuel prices prompted the search for solutions to reduce energy consumption. Back then, conventional steam boilers were the only option available. However, these boilers were very inefficient (due in part to the ...
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BNP Paribas real estate case study
Following the installation of Sabien’s M2G boiler controls into 20 of one of its clients’ buildings, BNP Paribas Real Estate has appointed Sabien Technology as a preferred supplier of boiler efficiency units. As a result of this appointment, Sabien’s M2G intelligent boiler load optimisers will, where appropriate, be supplied to clients of BNP Paribas Real Estate to improve ...
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Environment risk and cogeneration in China: the case of Zibo Huantai district
With the economic development, the environment protection problems become more and more serious and the environment protection deterioration risk has been exacerbated in Zibo City, China. Many small heating boilers are used to supply heat in Huantai district of Zibo, which have low efficiency of energy consumption and cause serious pollution. With the analysis of the thermal power demand and ...
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Improving energy use efficiency in Nigeria's industrial sector: a case study of a beverage plant
Industrial energy is a major component of the total energy use in a nation. However, energy is not without a cost in its production, availability, use and even its environmental impact on society. In addition, most of the energy resources are depletable, thereby necessitating their sustainable use through energy efficiency improvement programs. In this investigation, an attempt was made to study ...
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Why carbon reduction and energy efficiency must be combined
With all the eyes focused on carbon emissions prior to Cancun, it’s vital not to lose sight of the need to combine carbon reduction with energy efficiency. Reducing carbon emissions is generally associated with an increase in energy efficiency. But, it is possible to reduce such carbon emissions while still operating inefficient systems. A biomass boiler, for example, reduces carbon ...
By Vital Energi
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Case Study: Retrofit Boiler Economiser for Textiles Manufacturer
This steam boiler project for a UK based textiles manufacturer involved the design, manufacture and retrofit of a bespoke boiler economiser in a horizontal orientation fitted directly onto the boiler flue exhaust flange with inlet / outlet gas side transitions to suit. The 8,000 kg/hr steam boiler runs at 8 bar g and is fuelled on natural gas. The Result The boiler economiser cools the ...
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Chemically Inclined: The Case for Clean Boilers
Boiler cleaning is something most companies don’t want to think about — if boilers are working within operational limits it’s often easier to keep up with smaller preventative maintenance (PM) tasks but put off a total chemical clean until performance starts to suffer. The problem? Once scale forms on boiler surfaces both fuel and efficiency losses quickly ramp up. Here’s ...
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Case Study: Isle of Man Hospital Steam Boiler Economisers
When Noble’s Hospital on the Isle of Man was looking to reduce operating costs ThermTech designed, manufactured and retrofitted three bespoke boiler economisers to help them do this. The hospital had two 6,000 kg/hr and one 4,000 kg/hr natural gas fired steam boilers running at 10 bar g each. The Solution Three bespoke boiler economisers were installed in a horizontal orientation ...
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Case Study: Steam Boiler Economiser Retrofit Project
ThermTech were asked to design, manufacture and retrofit two bespoke steam boiler economisers to the boilers for a UK based specialty chemicals production facility to help further improve the energy efficiency of the site. The two natural gas fired boilers located at the site’s boiler house are each designed to provide a maximum of 15,000 kg/hr of steam at 22 bar g maximum pressure to ...
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Energy, exergy, thermoeconomic and sustainability analyses of a building heating system with a combi–boiler
The energy, exergy, thermoeconomic and sustainability analyses are applied to the building heating system with a natural gas–fired combi–boiler. The building area is considered as 90 m². Furthermore, the design and analysis of the natural gas installation of the building are done. Two different methodologies (Fine–HVAC and LowEx analyses) are used for energy analyses (heat loss and demand) of the ...
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Fuel Homogenization
The structure of the financial expenses of automotive businesses and boiler plants is quite varied, though it still allows to identify the main expenditures. First of all, it is the fuel, which accounts for no less than 40% of all costs. Fuel homogenization devices are designed to increase the quality of combustion, thereby saving resources. Homogenized fuel features good performance, burns ...
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Evaluation of the optimum efficiency of fire tubes boilers
Three-stage pirotubular boilers using gasoil C have been studied. Two boilers were connected in parallel. The data has been obtained by means of an analyser; its probe was connected at the exit of the boilers. The operation parameters considered were the injection pressure and the number of burners. As the emission of pollutants must be within the values prescribed by legislation, these are ...
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First industrial application of an open absorption cycle for heat transformation in a district-heating network
The first plant for high temperature utilisation of higher heating value was realised under industrial conditions in a combined heat and power plant. The technology results in an increased heat recovery temperature and a stronger dehumidification of the flue gas. Beyond that, the use of large solution flow within an adiabatic absorber enables to combine gas scrubbing and dehumidifying. Economic ...
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Tire Derived Fuel (TDF)
Tire-derived fuel (TDF) is a fuel derived from waste tires of all kinds. TDF is a major use for scrap or waste tires as fuel. This may include whole tires or tires processed into uniform, flowable pieces that satisfy the specifications of the end-user. Waste tires are used as fuel either shredded or whole depending on the type of combustion unit. Tire Derived Fuel (TDF) Markets TDF is the oldest ...
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Värnamo, Boiler 1- E.ON, Sweden - Case Study
Mounting of an AEROVIT system August 2005 Before the boiler had to be cleaned every 6. week. The flue gas temperature was on a clean boiler 210°C. The manual cleaning was executed by ...
By Aerovit A/S
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Exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant
This paper presents exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant using specific exergy costing (SPECO) methodology. Cost–balance and auxiliary equations are developed and solved. The results indicate that in the topping cycle, the boiler and the turbine contribute maximum to the formation of product cost. High value of exergoeconomic factor for the boiler ...
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Price or performance?
I can recall many occasions over the past 10 years where I have been called out and inspected a faulty underfloor heating installation, I discovered that the underfloor heating systems generally have been designed¬¬ on the border of normal operation to, I assume, reduce the overall amount of the materials required, and thereby make the cost for the project more attractive against rival companies, ...
By Subheat Ltd
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