Material-flow analysis, energy analysis, and partial environmental-LCA of a district-heating combined heat and power plant in Sweden

Karlsson, Jonas; Brunzell, Lena; Venkatesh, G.

doi:10.1016/j.energy.2017.11.159

Cited by 32 publications

(22 citation statements)

References 13 publications

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“…In the process, a large amount of thermal energy is wasted. The efficiency of energy conversion in the state-of-the-art combined cycle power plant is only 50% to 60% [2]. Combined Heat and Power (CHP) is a cogeneration unit, which is not only mature and reliable but also more flexible.…”

Section: Background Informationmentioning

confidence: 99%

“…Step (2). Fitness assignment: Combine individuals in parent population P with individuals in archive population A to Q (when the generation counter M = 0, population A keeps empty, Q equals P), then the fitness values of individuals in Q are calculated as equation (15).…”

Section: Idbeamentioning

confidence: 99%

“…Crowding-distance assignment and Ranking: Distribution of crowding-distance among individuals in population A and sorting by distance from large to small; retention of the first N * 4/5 individuals with larger distances in archive population A. Turn to Step (2).…”

Section: Remove the Individualmentioning

confidence: 99%

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Indicator & crowding distance-based evolutionary algorithm for combined heat and power economic emission dispatch

Sun

Deng

2020

Applied Soft Computing

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Heat and power have become the most indispensable resources. However, the traditional ways of generating power and heat are inefficient and cause high pollution; a CHP (Combined Heat and Power) unit can solve these problems well. In recent years, more attention has been paid to energy conservation and environmental protection, and Combined Heat and Power Economic Emission Dispatch (CHPEED) has become an important multi-objective optimization problem. In this paper, an Indicator & crowding Distance-based Evolutionary Algorithm (IDBEA) is put forward for handling this non-convex and non-linear problem. With consideration of the valve-point effects and power transmission loss, IDBEA is tested on three standard test systems with different types, including four units, five units and seven units. In the experiment, IDBEA is compared with several evolutionary algorithms, the simulation results demonstrate that IDBEA has strong stability and superiority, while the solutions show better convergence and diversity than several typical algorithms.

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Section: Background Informationmentioning

confidence: 99%

Section: Idbeamentioning

confidence: 99%

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Indicator & crowding distance-based evolutionary algorithm for combined heat and power economic emission dispatch

Sun

Deng

2020

Applied Soft Computing

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“…Incorporating pyrolysis reactor with any technique enables better processing, and the overall emissions are almost similar. In [13], it is clear that the performance of CHP plants is higher than waste-to-energy incineration and power plants that supply only heat and electricity respectively. [14] Integrating heat and power systems with phase change heat storage method in CHP plants improves adjustability and feasibility.…”

Section: Geothermal Cogeneration (Chp) Plantmentioning

confidence: 99%

New construction methodology-geothermal cogeneration plant efficiency improvements for environmental and economic sustainability using waste heat recovery system

Jose

Prasanna²,

Prakash³

2018

IJET

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Power station is used in geothermal cogeneration or Combined Heat and Power (CHP) plant to generate electric power and heat from a single process simultaneously. Industrial CHP gains attention due to its sustainability and its nature of carbon footprint reduction. In this regard, CHP is more effective than generating steam or burning fuel on-site, and electricity is imported from the grid. CHP is a combined system which finds applications in several techniques and thermal and fuel systems, and these functionalities can be integrated into prevail-ing building structures. In CHP, the modifications are carried out with respect to the energy and user requirements. In heat recovery mecha-nism of CHP plant, several critical parameters are required. The present research work focuses on heat recovery analysis in geothermal co-generation (CHP) plant, in which the methods to lessen the generated secondary (waste) heat is emphasized by enhancing energy efficiency. Further it also includes passive and active strategies. The recent trends of direct electric conversion devices are more useful, and therefore can be introduced in industrial waste heat recovery applications, which are usually applied in CHP or geothermal cogeneration plants includ-ing paper mills and chemical processing and refinery systems, hotels, hospitals, industries and commercial structures, where constant heat and power requirements exist.

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“…therefore, environmental performance of alternative scenarios must take into consideration the complete life cycle to avoid problem shifting. in recent years, life cycle assessment (lCa) has been widely used to identify and evaluate potential environmental benefits and drawbacks of Wte options [2], [3], [14][15][16][17].…”

mentioning

confidence: 99%

Waste-to-energy options within a circular economy strategy in a developing country: the case of the bio bio region in Chile

González¹,

Riveros²,

Concha³

et al. 2018

Int. J. EQ

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Waste-to-energy options Within a CirCular eConomy strategy in a Developing Country: the Case of the Bio Bio region in Chile patriCia gonzález, sofía riveros, sCarlett ConCha & yannay Casas environmental sciences faculty university of Concepción, Chile. aBstraCt in Chile, during the last 40 years the municipal solid waste (msW) generation rate has shown a 4-fold increase due to population growth, fast urbanization and improved material standards. as in most developing countries, this trend is expected to continue as economic policies foster greater industrial investment and increases in domestic consumption. Currently, msW are landfilled near ever expanding urban areas, leading to growing public concerns, and prompting new control legislation. up-to-date msW management practises are being promoted in order to maximise waste valorisation, including recycling, and waste-to-energy, within a circular economy strategy. however, new resource consumption, waste streams, air emissions and effluents may arise when changing from a linear to a circular economy model. therefore, environmental performance of alternative scenarios must take into consideration the complete life cycle to avoid problem shifting. Within this context, this paper presents a case study of three alternative waste-to energy scenarios, as part of a circular economy strategy, involving combustion, gasification, and landfill biogas, at the Bio Bio region in southern Chile. this is an industrial region housing over 2 million inhabitants and generating more than one million tonnes of msW per year. the study assesses waste-to energy alternatives considering an integrated waste management life cycle approach. Boundaries include waste collection, transport, pre-treatment processes, by-products generation, and heat/power production. msW transport, recycling rates, chemical compositions, and calorific values, were obtained from primary sources, whereas energy conversion efficiencies and other data gaps were estimated from the ecoinvent database. results provide a complete view of the environmental performance of each alternative scenario, including potential climate change effects and other environmental impacts, and also the positive contributions of material and energy recovery. this work illustrates the value of life cycle assessment in the context of decision making concerning circular economy scenarios.

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Material-flow analysis, energy analysis, and partial environmental-LCA of a district-heating combined heat and power plant in Sweden

Cited by 32 publications

References 13 publications

Indicator & crowding distance-based evolutionary algorithm for combined heat and power economic emission dispatch

Indicator & crowding distance-based evolutionary algorithm for combined heat and power economic emission dispatch

New construction methodology-geothermal cogeneration plant efficiency improvements for environmental and economic sustainability using waste heat recovery system

Waste-to-energy options within a circular economy strategy in a developing country: the case of the bio bio region in Chile

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