Cogeneration Articles
-
Environmental assessment of energy production by combustion of biogas provided by the anaerobic digestion of agricultural biomass
This paper tries to compare the environmental impacts of energy production using agricultural biomass and energy production using traditional reactor systems (natural gas and fuel oil) by using the Life Cycle Assessment (LCA) methodology. In order to make this comparison, the impact assessment methods CML 2 BASELINE 2000 (problem oriented method) and ECOINDICATOR 99 (damage oriented method) are ...
-
Energy-efficient and low carbon emission residential building near Torino, Italy
This paper describes a green design strategies applied on a residential building "House E3" – an eco-compatible and energy efficient building near Turin airport. High noise level, elevated humidity and severe summer climate of the site were key considerations when creating the envelope with emphasis on inside comfort. Correct use of materials based on a previous research work, integrated design ...
-
Performance assessment of a 5 kW SOFC cogeneration fuel cell
The performance of a 5 kW Solid Oxide Fuel Cell (SOFC) will be studied and described in this paper. This will help to significantly reduce residential Green House Gas (GHG) emission to about 20%, when compared with the actual emissions, based on the high-performance boiler and electricity produced by high-efficiency combined cycle. The particular benefit of SOFC, when compared with other ...
-
Who uses innovative energy technologies, when and why? The case of fuel cell MicroCHP in households
Users can play an important role in the diffusion of sustainable energy technologies. Using a postal survey and focus group discussions, the paper explores the characteristics, motives and expectations of household users in the case of fuel cell?driven small combined heat and power plants. (Potential) users are highly educated and well off, almost exclusively male and relatively old. Their main ...
-
CHP gains stature as efficiency measure
Combined heat and power is a form of alternative energy that has been available for many decades. Yet it’s remained below the radar screen in policy discussion about our energy future. However, it appears to be gaining new stature as lawmakers and regulators seek ways to make energy use more efficient.Also called cogeneration, the technology creates both electricity and heat in one unit. Most ...
-
`Getting Technical - Managing Your Assets in an AB21 Carbon-Constrained Environment, presented at an AB32 Seminar, June 2008
AB32 Mandatory Reporting Rule Covered Entities Cement plants; Petroleum refineries that emit > 25,000 metric tonnes of CO2 in anycalendar year after 2007 Hydrogen plants that emit > 25,000 metric tonnes of CO2 in anycalendar year after 2007 Electric generating facilities that individually have a nameplategenerating capacity > 1 megawatt (MW) that emit > 2,500 metrictonnes of ...
-
Feasibility of a CHP driven industrial park based on exergy analysis
Industrial zones are manufacturing plants clustered in a given part of a city. Such clustering is primarily dictated by zoning regulations that tend to isolate residential, business, and industrial neighbourhoods. A number of properly matched manufacturing plants can be clustered within a given proximity with a primary objective of optimising their energy use. As secondary goals the cluster may ...
-
Effect of exergy optimisation on a cogeneration system's CO2 emissions according to different demand patterns
The objective of this work is to verify how different operational strategies affect the CO2 emissions of a cogeneration system according to different demand patterns. The operation strategies studied were focused in running cost and exergetic efficiency. The results show that the optimal exergetic efficiency strategy generated the highest emissions reduction. The operation with the highest ...
-
Doing business in US energy markets
Doing business in the US can be a crazy venture if you’re an international company trying to make inroads. Europeans often say it’s like learning the rules of 50 different countries. This is because important energy policy decisions are often made by state governments. It looks like the emerging “white tag” market for energy efficiency may be no different. So far, Congress has resisted the idea ...
-
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 ...
-
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 ...
-
An optimal energy allocation model using fuzzy linear programming for energy planning in India for the year 2020
Development of an energy allocation model will help in the proper allocation of the energy sources in meeting the future energy demand in India. In this paper, an attempt has been made to develop a fuzzy-based linear programming optimal energy model that minimises the cost and determines the optimum allocation of different energy sources for the centralised and decentralised power generation in ...
-
IAEA's DEEP in Carlsbad: co-producing energy and water in Southern California
The joint production of energy and desalinated water is examined in the context of the construction of a Reverse Osmosis (RO) plant at the site of the (fossil-fired) Encina Power Station in Carlsbad, California. The first part of the paper reproduces cost estimates of water at the Carlsbad Desalination Project. The second part of the paper reproduces these cost estimates using the International ...
-
Exergetic destructions in steam generation system: Azzour plant
The aim of this research is to investigate the exergetic destructions of Azzour steam generation system. The exergy destructions (irreversibilities) of the steam generation system were analysed based on actual plant operating data. Three irreversible processes were investigated; combustion, heat transfer and streams mixing processes. Sensitivity analysis was carried out to study the effects of ...
-
Assessment of micro-cogeneration potential for domestic trigeneration
Cogeneration is worldwide considered as the major option to achieve considerable energy saving with respect to traditional systems. This paper deals with the application of micro-cogeneration, Micro-Combined Heat and Power (MCHP) (electrical power Keywords: micro cogeneration, internal combustion, experimental tests, MCHP, micro combined heat and power, CHP, electric heat pumps, EHP, energetic ...
-
Thermal design and emissions of duct-burners for combined-cycle and cogenerative plants
This paper mainly aims at demonstrating that an appropriate thermo-fluid-dynamic design optimisation of duct-burners for combined-cycle and cogenerative plants allows to satisfy restrictive emission limits, while significantly reducing the thermal stresses and the undesired pressure drops. In particular, a detailed discussion on the influence of the TEG composition and of the thermal load, ...
-
Power Substation and a Gas-Fired Combustion Turbine and Heat Recovery Steam Generator
B&V Energy expands the world's largest nitrogen plant by constructing a cogeneration plant supplying the additional power needed to reach resources deep in Mexico's offshore oil field. Metropolitan Mexico City has a population of approximately 20 million and is one of the most densely populated areas in the world, requiring an extraordinary amount of gas and oil to satisfy its growing energy ...
-
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, ...
-
Qualifying Combined Heat and Power (CHP) activity
The EU 2002 draft and 2004 final CHP Directives propose qualifying CHP activity with the quality norm. This norm benchmarks the energy efficiency of CHP plant outputs on external reference power and heat efficiencies. Because the quality norm amalgamates cogeneration and condensing activity its application entails particular perverse effects for high-quality and adapted scale investment in CHP ...
-
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 ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you