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Journal articles on the topic 'Economic Analysis of CHP'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Şah, Sezgin, and M. Handan Çubuk. "CHP Microturbine Configuration Model and Economic Analysis." Cogeneration & Distributed Generation Journal 24, no. 2 (2009): 51–61. http://dx.doi.org/10.1080/15453660909509008.

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Bartnik, Ryszard, Anna Hnydiuk-Stefan, and Zbigniew Buryn. "Analysis of Gas-Steam CHP Plants Without and with Heat Accumulator and HTGR Reactor." Energies 17, no. 22 (2024): 5702. http://dx.doi.org/10.3390/en17225702.

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This study analyzes the thermodynamic and economic viability of modified high-temperature gas-cooled reactor (HTGR) gas-steam combined heat and power (CHP) systems compared to conventional CHP plants. The research addresses the critical need for efficient and sustainable energy production methods. Using comprehensive thermodynamic modeling and economic analysis, the study evaluates system performance under various operating conditions. Key findings reveal that modified CHP plants with HTGR and turboexpanders (TEs) demonstrate significantly higher efficiency and lower heat generation costs comp

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Martin, James H. "Atmospheric Corrosion Suppression Through Controlled Humidity Protection—An Operational Readiness and Force Multiplier." Materials Performance 44, no. 3 (2005): 38–42. https://doi.org/10.5006/mp2005_44_3-38.

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Creating a controlled humidity protection (CHP) environment of between 30 and 40% relative humidity (RH) can suppress atmospheric corrosion. This article presents the relationship between RH and corrosion/material degradation rates and the extent of CHP systems deployment throughout the U.S. Department of Defense (DoD). It describes the CHP systems in use on aircraft, aviation and weapons support equipment, and other combat equipment; DoD, U.S. Marine Corps, and Naval Aviation CHP policy directives and applications; and independent CHP performance and economic analyses by the Government Accoun

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Papadimitriou, Aikaterini, Vassilios Vassiliou, Kalliopi Tataraki, Eugenia Giannini, and Zacharias Maroulis. "Economic Assessment of Cogeneration Systems in Operation." Energies 13, no. 9 (2020): 2206. http://dx.doi.org/10.3390/en13092206.

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A systematic method to evaluate the economic operating performance of existing combined heat and power (CHP) or combined cooling heat and power (CCHP) generation systems is applied. Two key performance indicators are selected to evaluate both the technical and the economic performance, based on operating recording data; the capacity factor and the capital recovery. The case study for eight projects in Athens is presented with the purpose to reveal the current situation of CHP in Greece and identify reasons that are hindering its penetration. Interesting conclusions were reached from the analys

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Ling, Wen Choong, Viknesh Andiappan, and Yoke Kin Wan. "Design of Biomass Combined Heat and Power (CHP) Systems based on Economic Risk using Minimax Regret Criterion." MATEC Web of Conferences 152 (2018): 01006. http://dx.doi.org/10.1051/matecconf/201815201006.

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It is a great challenge to identify optimum technologies for CHP systems that utilise biomass and convert it into heat and power. In this respect, industry decision makers are lacking in confidence to invest in biomass CHP due to economic risk from varying energy demand. This research work presents a linear programming systematic framework to design biomass CHP system based on potential loss of profit due to varying energy demand. Minimax Regret Criterion (MRC) approach was used to assess maximum regret between selections of the given biomass CHP design based on energy demand. Based on this, t

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Rušeljuk, Pavel, Kertu Lepiksaar, Andres Siirde, and Anna Volkova. "Economic Dispatch of CHP Units through District Heating Network’s Demand-Side Management." Energies 14, no. 15 (2021): 4553. http://dx.doi.org/10.3390/en14154553.

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Optimisation of heat and electrical load distribution, where the objective function is the maximum efficiency of the CHP unit for a given load range, can be done considering the limitations of electrical power and the heat load. Simulating a real CHP unit with a district heating network shows that demand-side management can improve the overall economic efficiency of the CHP plant and increase the unit’s operating range in the electricity spot market. Economic dispatch makes it possible to determine a reasonable additional increase in the electric power of the CHP unit, and to optimise the supp

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Bespalov, V. I., O. S. Gurova, E. P. Lysova, and G. S. Grishin. "Life Cycle Analysis of Steam and Gas Turbine CHP Plants." Modern Trends in Construction, Urban and Territorial Planning 1, no. 4 (2023): 32–43. http://dx.doi.org/10.23947/2949-1835-2022-1-4-32-43.

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Introduction. When choosing the optimal heat and electric power generating technology, the most promising in terms of ensuring maximum credibility of obtained results is the method of assessing the environmental and economic efficiency of various objects, which implies the application of the studied object life cycle assessment method to be the initial main stage. The authors tackle the problem of assessing the life cycle of steam and gas turbine CHP plants for selecting the optimal heat and electric power generating technology. The aim of the study is to define the main stages and their corre

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Sermyagina, Ekaterina, Jussi Saari, Juha Kaikko, and Esa Vakkilainen. "Integration of torrefaction and CHP plant: Operational and economic analysis." Applied Energy 183 (December 2016): 88–99. http://dx.doi.org/10.1016/j.apenergy.2016.08.151.

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Brozičević, Marko, Dragan Martinović, and Predrag Kralj. "Techno-economic analysis of the cogeneration process on board ships." Journal of Sustainable Development of Transport and Logistics 2, no. 1 (2017): 6–15. https://doi.org/10.14254/jsdtl.2017.2-1.1.

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Combined heat and power (CHP) is a facility which uses one energy source to produce both electricity and thermal energy at the same time. CHP has an advantage when compared to conventional power plants which produce only electricity or thermal energy because it is much more efficient – it minimizes the usage of its primary energy source, grid losses and greenhouse gas emissions. CHP’s big advantage lies in its applicability: it is highly compatible with existing technologies already in use in different power systems across the industry, agriculture, business and residential sector. This paper

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Tańczuk, Mariusz, and Wojciech Kostowski. "Technical, Energetic and Economic Optimization Analysis of Selection of Heat Source for Municipal Sewage Sludge Dryer." Energies 14, no. 2 (2021): 316. http://dx.doi.org/10.3390/en14020316.

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The treatment of growing production of municipal sewage sludge has become a significant global problem. Drying of digested sewage sludge is a promising alternative to sludge disposal at dumping sites. The research objective of this study was to find the optimal heat source for a sludge drying plant in a large municipal sewage treatment plant (people equivalent: 250,000). Two boundary heat supply cases were analyzed in the paper: cogeneration of heat and power (CHP) units, internal combustion (IC) engines fired with natural gas, and plant supplied with a gas boiler. The aim of the research was

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Tańczuk, Mariusz, and Wojciech Kostowski. "Technical, Energetic and Economic Optimization Analysis of Selection of Heat Source for Municipal Sewage Sludge Dryer." Energies 14, no. 2 (2021): 316. http://dx.doi.org/10.3390/en14020316.

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The treatment of growing production of municipal sewage sludge has become a significant global problem. Drying of digested sewage sludge is a promising alternative to sludge disposal at dumping sites. The research objective of this study was to find the optimal heat source for a sludge drying plant in a large municipal sewage treatment plant (people equivalent: 250,000). Two boundary heat supply cases were analyzed in the paper: cogeneration of heat and power (CHP) units, internal combustion (IC) engines fired with natural gas, and plant supplied with a gas boiler. The aim of the research was

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12

Zheng, Peijun, Peng Liu, and Yeqi Zhang. "Economic Assessment and Control Strategy of Combined Heat and Power Employed in Centralized Domestic Hot Water Systems." Applied Sciences 11, no. 10 (2021): 4326. http://dx.doi.org/10.3390/app11104326.

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With the increasing application of CHP and an industry transition to distributed energy, it is necessary to make a comprehensive economic analysis and comparison of the entire lifetime of CHP from the net present value (NPV), payback period, and cost-saving ratio (CSR). Five systems, including micro-CHP, gas boiler (GB), air-source heat pump (ASHP), domestic gas-fired heater and domestic electric hot water-heater, are simulated. First, this paper takes annual heat use efficiency (AHUE) into account to compare the economy of each domestic hot water (DHW) system. The results show that a domestic

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Berzan, V., V. Postolaty, Elena Bikova, and V. Babich. "A Comparative Analysis of the Efficiency of Thermal and Electric Energy Production in the District Heating Systems." Problemele Energeticii Regionale 3(32) (December 15, 2016): 55–71. https://doi.org/10.5281/zenodo.1207897.

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In the base of the technical and economic indicators of the exploitation, an analysis of the efficiency of operation of Combined Heat and Power stations (CHP) in the district heating system at various loads during the year have been provided. The value of specific indicators of operation of the CHPs have been determined: a specific consumption of the fuel, the cost of the fuel per unit of energy produced, as well as the difference between the selling price of energy and acquisition costs of the fuel. As have been found, the optimization of CHP’s of the district heating loading during the

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Prakash Arul Jose, J., P. Rajesh Prasanna, and Fleming Prakash. "New construction methodology-geothermal cogeneration plant efficiency improvements for environmental and economic sustainability using waste heat recovery system." International Journal of Engineering & Technology 7, no. 3 (2018): 1679. http://dx.doi.org/10.14419/ijet.v7i3.12623.

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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 modificatio

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15

Perrone, Diego, Angelo Algieri, Pietropaolo Morrone, and Teresa Castiglione. "Energy and Economic Investigation of a Biodiesel-Fired Engine for Micro-Scale Cogeneration." Energies 14, no. 2 (2021): 496. http://dx.doi.org/10.3390/en14020496.

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The work aims at investigating the techno-economic performance of a biodiesel micro combined heat and power (CHP) system for residential applications. The CHP unit is based on a direct-injection compression ignition engine providing 6.7 kWel and 11.3 kWth. A 0D model is developed and validated to characterise the behaviour of the biodiesel-fired engine at full and partial load in terms of efficiency, fuel consumption, and emissions. Furthermore, non-dimensional polynomial correlations are proposed to foresee the performance of biodiesel-fuelled engines for micro-CHP applications at partial loa

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16

Hughes, R. A., B. Ramsay, and C. Rossini. "A Knowledge-Based Decision Support System for Combined Heat and Power Investment Appraisal and Plant Selection." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 210, no. 1 (1996): 15–24. http://dx.doi.org/10.1243/pime_proc_1996_210_004_02.

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Combined heat and power (CHP) can, in the most suitable cases, reduce a consumer's total energy costs by up to 40 per cent. It is important to stress that CHP is not viable at all sites and further that poor choice of CHP plant often results in inefficient and uneconomic operation. It is therefore vitally important to build a clear picture of what specific factors determine the profitability of a CHP scheme. The development of an accurate, reliable economic model is necessary for any sector where a potential market for CHP exists. Conventional economic models have a number of limitations, part

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17

Petkajee, Thanakorn, and David Banjerdpongchai. "Design of Cogeneration and Analysis of Economic and Environmental Optimal Operations for Building Energy Management System." ECTI Transactions on Electrical Engineering, Electronics, and Communications 11, no. 2 (2013): 79–94. http://dx.doi.org/10.37936/ecti-eec.2013112.170718.

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This paper proposes a design of cogeneration or combined heat and power (CHP) system and analysis of economic and environmental optimal operations for a building energy management system (BEMS). The proposed BEMS consists of a CHP system, an auxil- iary boiler, an absorption chiller, and power grids. The design problem concerns with multi-objective cost functions: total operating costs (TOC) and total carbon dioxide emissions (TCOE) which can be for- mulated as a linear program. The optimal operation analysis is employed to determine a suitable capacity of the CHP system for the proposed BEMS.

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18

Borsukiewicz-Gozdur, A., P. Klonowicz, D. Król, S. Wiśniewski, and K. Zwarycz-Makles. "Techno-economic analysis of CHP system supplied by waste forest biomass." Waste Management & Research 33, no. 8 (2015): 748–54. http://dx.doi.org/10.1177/0734242x15590472.

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19

NAGANUMA, Kaname, Kengo SUZUKI, Yutaka TABE, and Takemi CHIKAHISA. "Economic percussion of introduceing CHP system by inter-industry relations analysis." Proceedings of the National Symposium on Power and Energy Systems 2016.21 (2016): C123. http://dx.doi.org/10.1299/jsmepes.2016.21.c123.

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20

Ahmad, Awais, and Alvaro Diez. "A Turkish CHP case study; techno-economic, environmental and policy analysis." International Journal of Energy Applications and Technologies 6, no. 3 (2019): 73–82. http://dx.doi.org/10.31593/ijeat.454799.

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21

Adamo, Angela, Jordi De la Hoz, Helena Martín, Joan Rubio, and Sergio Coronas. "An Analysis of the Development of the Cogeneration Sector in Spain: A Comprehensive Review of the Period 1980–2020 from a Regulatory Perspective." Energies 17, no. 3 (2024): 625. http://dx.doi.org/10.3390/en17030625.

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Combined Heat and Power (CHP) has been identified by the EU as a powerful resource capable of making substantial contributions to energy savings and reducing GHG emissions. Spain’s effort to promote CHP has been prolific since the 1980s. In this regard, there have been various Laws, Royal Decrees (RDs) and European Union (EU) Directives addressed to reach the national objectives set for the CHP sector. Despite these attempts, the evolution and growth of installed CHP capacity has been irregular, compared to other technologies. Likewise, the academic treatment of the Spanish CHP evolution has n

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22

De Souza, Ronelly, Melchiorre Casisi, Diego Micheli, and Mauro Reini. "A Review of Small–Medium Combined Heat and Power (CHP) Technologies and Their Role within the 100% Renewable Energy Systems Scenario." Energies 14, no. 17 (2021): 5338. http://dx.doi.org/10.3390/en14175338.

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The energy transition towards a scenario with 100% renewable energy sources (RES) for the energy system is starting to unfold its effects and is increasingly accepted. In such a scenario, a predominant role will be played by large photovoltaic and wind power plants. At the same time, the electrification of energy consumption is expected to develop further, with the ever-increasing diffusion of electric transport, heat pumps, and power-to-gas technologies. The not completely predictable nature of the RES is their well-known drawback, and it will require the use of energy storage technologies, i

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Klavs, G., I. Kudrenickis, and A. Kundzina. "Analysis of Competitiveness and Support Instruments for Heat and Electricity Production from Wood Biomass in Latvia." Latvian Journal of Physics and Technical Sciences 49, no. 2 (2012): 3–13. http://dx.doi.org/10.2478/v10047-012-0007-3.

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Analysis of Competitiveness and Support Instruments for Heat and Electricity Production from Wood Biomass in Latvia Utilisation of renewable energy sources is one of the key factors in a search for efficient ways of reducing the emissions of greenhouse gases and improving the energy supply security. So far, the district heating supply in Latvia has been based on natural gas, with the wood fuel playing a minor role; the same is true for decentralised combined heat-power (CHP) production. The paper describes a method for evaluation of the economic feasibility of heat and electricity production f

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Atănăsoae, Pavel. "Technical and Economic Assessment of Micro-Cogeneration Systems for Residential Applications." Sustainability 12, no. 3 (2020): 1074. http://dx.doi.org/10.3390/su12031074.

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The benefits of cogeneration or combined heat and power (CHP) of large power systems are well proven. The technical and economic viability of micro-cogeneration systems is discussed in this paper as it compares to the separate production of electricity and heat. A case study for an individual household is also provided to better understand the benefits of small power cogeneration from renewable energy sources. Two micro-CHP systems are considered for analysis: the first with Stirling engine, and the second with Rankine Organic Cycle. The reference scenario is an individual household with a gas

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Smołka, Krystian, Piotr Wiśniewski, Mirosław Majkut, and Sławomir Dykas. "Operational and economic analysis of a Velox-type combined heat & power plant with a throttle valve." MATEC Web of Conferences 345 (2021): 00028. http://dx.doi.org/10.1051/matecconf/202134500028.

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For many years, the Department of Power Engineering and Turbomachinery of the Silesian University of Technology has been using a small-capacity (about 500 kWe) steam-gas power plant. Based on many years of experience in operation of this power plant utilizing the Velox-type gas-steam system, an idea arose to modify this type of thermal power cycle to create a combined heat and power (CHP) plant of small capacity, dedicated for distributed heat and power production or production process steam with high temperature. Previous thermodynamic and economic analysis of that type of low-power CHP plant

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В.Г., Реев, та Хоютанов А.М. "Исследование экономической целесообразности внедрения тепловой насосной установки в систему теплоснабжения Якутской ТЭЦ". Journal of Applied Research, № 10 (25 жовтня 2024): 124–29. http://dx.doi.org/10.47576/2949-1878.2024.10.10.018.

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В статье представлен технико-экономический анализ внедрения тепловой насосной установки в схему Якутской ТЭЦ. Смоделированы режимы работы ТЭЦ с использованием программного обеспечения «United Cycle», определены тепловая нагрузка и расход топлива котлами, проведена технико-экономическая оценка внедрения тепловой насосной установки в систему теплоснабжения. Сделан вывод об экономической целесообразности внедрения рассматриваемой установки в систему Якутской ТЭЦ. The article presents a technical and economic analysis of the introduction of a heat pumping unit into the scheme of the Yakutsk CHP. T

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Toselli, Davide, Florian Heberle, and Dieter Brüggemann. "Techno-Economic Analysis of Hybrid Binary Cycles with Geothermal Energy and Biogas Waste Heat Recovery." Energies 12, no. 10 (2019): 1969. http://dx.doi.org/10.3390/en12101969.

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In Germany, enhancing renewable power generation represents a leading step to comply with the requirements of the Energiewende agenda. The geothermal reservoir in Oberhaching is assumed as a case study, with a gross electric power equal to 4.3 MWel. The intent of this work is to design a hybrid binary geothermal power plant and to integrate it into the German energy market. Biogas waste thermal power equal to 1350 kWth is assumed as a secondary source. Two different layouts are defined for the hybrid solution: increasing the geothermal fluid temperature before entering the organic Rankine cycl

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Olsen, Chad, Theodore A. Kozman, and Jim Lee. "Equipment Sizing and Economic Analysis of CHP Natural Gas Liquid Recovery Systems." Energy Engineering 106, no. 1 (2009): 7–23. http://dx.doi.org/10.1080/01998590909509164.

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Kempegowda, Rajesh S., Gonzalo del Alamo, David Berstad, Mette Bugge, Berta Matas Güell, and Khanh-Quang Tran. "CHP-Integrated Fischer-Tropsch Biocrude Production under Norwegian Conditions: Techno-Economic Analysis." Energy & Fuels 29, no. 2 (2015): 808–22. http://dx.doi.org/10.1021/ef502326g.

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Smolka, Krystian, and Slawomir Dykas. "The analysis of a Velox-type CHP plant for various gaseous fuels." E3S Web of Conferences 137 (2019): 01001. http://dx.doi.org/10.1051/e3sconf/201913701001.

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For many years, the Institute of Power Engineering and Turbomachinery of the Silesian University of Technology has been using a small-capacity (about 500 kWe) steam-gas power plant. Based on many yearsof experience in operation of this power plant utilizing the Velox-type gas-steam system, an idea arose to modify this type of thermal power cycle to create a combined heat and power (CHP) plant of small capacity, dedicated for distributed heat and power production of the range up to 500 kW or production process steam with high temperature. Previous thermodynamic and economic analysis of that typ

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Hnydiuk-Stefan, Anna, Aleksandra Otawa, Krzysztof Stefan, and Dariusz Zmarzły. "Technical and Economic Analysis of Low-Emissions Modernization of Existing Heating Plants in Poland." Energies 14, no. 21 (2021): 7426. http://dx.doi.org/10.3390/en14217426.

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An analysis is performed with regards to technologically outdated heating plants operating in many areas where fossil fuels such as coal and gas are utilized, in order to consider the alternatives of their modernization. By application of a chart using a variety of alternatives, the economic feasibility of executing two types of modernization of heating plants are explored: a single-fuel gas–steam CHP plant and a coal-fired heating plant to a coal-fired CHP plant with a condensing turbine. This study demonstrates how the selection of modernization technology is affected, in terms of profitabil

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Ribarov, Lubomir A., and David S. Liscinsky. "Microgrid Viability for Small-Scale Cooling, Heating, and Power." Journal of Energy Resources Technology 129, no. 1 (2006): 71–78. http://dx.doi.org/10.1115/1.2424967.

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Cooling, heating, and power (CHP) energy systems provide higher fuel efficiency than conventional systems, resulting in reduced fuel consumption, reduced emissions, and other environmental benefits. Until recently the focus of CHP system development has been primarily on medium-scale commercial applications in a limited number of market segments where clear value propositions lead to short term payback. Small-scale integrated CHP systems that show promise of achieving economic viability through significant improvements in fuel utilization have received increased attention lately. In this paper

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Ruseljuk, Pavel, Andrei Dedov, Aleksandr Hlebnikov, Kertu Lepiksaar, and Anna Volkova. "Comparison of District Heating Supply Options for Different CHP Configurations." Energies 16, no. 2 (2023): 603. http://dx.doi.org/10.3390/en16020603.

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The article discusses the evaluation of potential heat production options for a large-scale district heating system in Narva (Estonia). Heat is currently generated at the Balti Power Plant’s CHP unit using local oil shale mixed with biomass. The CHP unit consists of two circulating fluidised bed boilers and a reheat steam turbine. According to the development strategy, the district heating system is expected to achieve carbon neutrality in the future. Various options and parameter variations should be analysed. The following scenarios were compared: (1) baseline scenario featuring an existing

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Ma, Zhao, Huiru Zhao, Qun Su, and Xuejie Wang. "Distributionally Robust Optimal Dispatching of CHP Microgrid considering Concentrating Solar Power and Uncertainty." Mathematical Problems in Engineering 2022 (April 26, 2022): 1–15. http://dx.doi.org/10.1155/2022/1994063.

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In order to solve the problem of diversified low-carbon energy supply with renewable energy as the main body, concentrating solar power (CSP) stations are introduced to act as cogeneration units. Taking full advantage of the flexible coupling and multienergy complementarity of electric, heat, and gas, an economic dispatch method for combined heat and power microgrid systems (CHP microgrid) with interconnected electric, heat, and gas is proposed. First, build the CSP-CHP microgrid structure and model the main equipment. Then, aiming at the minimum operating cost of the system, a regular schedul

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Tarasova, Victoria. "FACTOR ANALYSIS OF THE THERMAL SCHEME OF CHP WITH SUPER CRITICAL STEAM CYCLE ON THE BASIS OF EXERGY METHOD." Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, no. 2(8) (June 15, 2021): 46–55. http://dx.doi.org/10.20998/2413-4295.2021.02.07.

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The most promising direction of CHP modernization is the introduction of power units on supercritical steam parameters. Increasing steam parameters is one of the most effective ways to increase the efficiency of a CHP plant. Thus, the development of the concept of thermal schemes turbines for supercritical steam parameters, taking into account the characteristics of their operation at the existing CHP Ukraine is an actual scientific problem. The solution to this problem will make it possible to replace or modernize the power generating equipment that has exhausted its resource with modern powe

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Corradi, Erica, Mosè Rossi, Alice Mugnini, et al. "Energy, Environmental, and Economic Analyses of a District Heating (DH) Network from Both Thermal Plant and End-Users’ Prospective: An Italian Case Study." Energies 14, no. 22 (2021): 7783. http://dx.doi.org/10.3390/en14227783.

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District heating (DH) is an alternative technology to Individual Heating (IH) for satisfying end-user’s needs. This paper assesses the competitiveness of a DH network in the center of Italy from energy, environmental, and economic points of view considering both thermal power plant and end-users’ sides. On the thermal power plant side, the energy analysis considers the Primary Energy Saving (PES) and the specific energy (Esp) of the fuel actually exploited in the thermal power plant compared to its Low Heating Value (LHV), while the environmental analysis considers the avoided CO2 and the econ

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Chong, Daokun, Haizhu Zhou, Xiaoping Li, Lining Zhou, Yitong Li, and Mingda An. "An Evaluation Method of Comprehensive Performance of Retrofitted CHP District Heating Systems." Energies 16, no. 12 (2023): 4539. http://dx.doi.org/10.3390/en16124539.

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There is a big wave in China of retrofitting single-purpose coal-fired systems for district heating into heat-oriented combined heat and power (CHP) systems to save energy. Back-pressure steam turbines (BPSTs) and extraction steam turbines (ESTs) are both common in retrofitted systems, but contrastive analyses of their effects on the systems’ operation performance are lacking. Moreover, comprehensive evaluation methods of the retrofitted systems remain unknown. In this paper, exergy, exergoeconomic, and exergoenvironmental analyses were conducted to evaluate the thermodynamic, economic, and en

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Papadimitriou, Aikaterini, Anastasios Tosios, and Eugenia Giannini. "Techno-Economic Performance Assessment of a Trigeneration System Operating in a Hospital." Energies 14, no. 16 (2021): 5105. http://dx.doi.org/10.3390/en14165105.

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The techno-economic performance evaluation of a combined cooling heating and power (CCHP) system installed in a hospital building in Greece is presented. The aim was to verify performance standards and evaluate real behavior, while highlighting the economic gains. In this research, system performance was evaluated using actual and year-round field measurements. The data were used to calculate the recovered heat and the generated electric energy. Furthermore, the performance was modeled and compared to the manufacturer specifications. Financial assessment was conducted through energy cost analy

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Koido, Kenji, Eri Takata, Takashi Yanagida, and Hirofumi Kuboyama. "Techno-Economic Assessment of Heat Supply Systems in Woodchip Drying Bases for Wood Gasification Combined Heat and Power." Sustainability 14, no. 24 (2022): 16878. http://dx.doi.org/10.3390/su142416878.

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Among decentralized small-scale biomass energy sources with the potential to revitalize local communities, combined heat and power (CHP) from gasification is promising in terms of its high power generation efficiency. Still, it has yet to achieve operational stability, in part due to the variation in the moisture content of the woodchips used as fuel. In this study, a technical and economic evaluation was performed to establish a center for the efficient production of high-quality dry woodchips within a sawmill and to determine the technical characteristics and economic viability of a system u

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Sánchez-Lozano, Daniel, Antonio Escámez, Roque Aguado, Sara Oulbi, Rachid Hadria, and David Vera. "Techno-Economic Assessment of an Off-Grid Biomass Gasification CHP Plant for an Olive Oil Mill in the Region of Marrakech-Safi, Morocco." Applied Sciences 13, no. 10 (2023): 5965. http://dx.doi.org/10.3390/app13105965.

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A substantial number of off-grid olive oil mills in Morocco are powered by diesel-fired generators, which hugely contribute to air pollution and greenhouse gas emissions. In this research work, a biomass gasification combined heat and power (CHP) plant fueled with local by-products was explored as a renewable alternative to electrify off-grid olive oil mills in this country. The case study considered a gasification CHP plant with a rated power of 80 kWe, in order to enable adaptation of the producer gas flow rate to abrupt changes in the power generation unit under dynamic operation. A downdra

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Yang, Li, Niu, and Sun. "Research on the Economic Benefit Evaluation of Combined Heat and Power (CHP) Technical Renovation Projects Based on the Improved Factor Analysis and Incremental Method in China." Sustainability 11, no. 19 (2019): 5162. http://dx.doi.org/10.3390/su11195162.

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With the increasingly prominent problems of resources and environment, thermal power enterprises in China are facing more severe challenges. To improve energy efficiency, a great number of thermal power enterprises implement the technical renovation of equipment. However, current methods cannot meet the needs of scientific and effective evaluations. In this context, the internal rate of return (IRR) is used as the main index to evaluate the economic benefits of the technical renovation of combined heat and power (CHP) plants. In order to improve the accuracy of the economic benefit evaluation

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Rasburskis, Nerijus, Juozas Gudzinskas, and Jonas Gylys. "COMBINED HEAT AND POWER PRODUCTION: SOCIO‐ECONOMIC AND SUSTAINABLE DEVELOPMENT ASPECTS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 12, no. 1 (2006): 29–36. http://dx.doi.org/10.3846/13923730.2006.9636369.

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The paper is based on the study of Lithuania facing the need for huge investments in both the replacement of the Ignalina nuclear power station and the replacement of district heating production units in many of the existing systems. Lithuania has a big technical potential for implementing small‐scale combined heat and power production (CHP) systems. Meanwhile, such implementation needs public regulation to become feasible not only from a socio‐economic, but also from a business economic point of view. The study focuses upon the analysis of methods for the incorporation of technical, economica

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Weber, K. Matthias. "The Success and Failure of Combined Heat and Power (CHP) in the UK, Germany and the Netherlands: Revisiting Stewart Russell’s Perspective on Technology Choices in Society." Science & Technology Studies 27, no. 3 (2014): 15–46. http://dx.doi.org/10.23987/sts.55313.

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Stewart Russell’s research work on combined heat and power / district heating (CHP/DH) in the UK was among the first empirical contributions to demonstrate that technological change is not just determined by seemingly objective technical and economic performance characteristics, but rather the result of social choices. His rich conceptual thinking is reconstructed in a coherent framework, and its explanatory power explored by analysing the innovation diff usion paradox of CHP/DH: in spite of very similar technical and economic characteristics, the patterns of innovation and diff usion diff er

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Koido, Kenji, Daichi Konno, and Michio Sato. "Life Cycle CO2 Emissions and Techno-Economic Analysis of Wood Pellet Production and CHP with Different Plant Scales and Sawdust Drying Processes." Sustainability 17, no. 1 (2024): 140. https://doi.org/10.3390/su17010140.

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This study presents a life cycle assessment (LCA) and economic analysis of wood pellet production and utilisation in gasification combined heat and power (CHP) systems, focusing on optimising the drying process and evaluating the impacts of varying plant scales. In line with Japan’s target of achieving net-zero emissions by 2050, the research examines primary energy demand (PED), CO2 emissions, and financial viability across the wood pellet production (gate-to-gate) and CHP energy generation (gate-to-grave) stages. The results reveal that the drying process accounts for 35–39% of the total ene

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Calise, Francesco, Francesco Liberato Cappiello, Massimo Dentice d’Accadia, Luigi Libertini, and Maria Vicidomini. "Dynamic Simulation and Thermoeconomic Analysis of a Trigeneration System in a Hospital Application." Energies 13, no. 14 (2020): 3558. http://dx.doi.org/10.3390/en13143558.

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Hospitals are very attractive for Combined Heat and Power (CHP) applications, due to their high and continuous demand for electric and thermal energy. However, both design and control strategies of CHP systems are usually based on an empiric and very simplified approach, and this may lead to non-optimal solutions. The paper presents a novel approach based on the dynamic simulation of a trigeneration system to be installed in a hospital located in Puglia (South Italy), with around 600 beds, aiming to investigate the energy and economic performance of the system, for a given control strategy (el

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Lee, Chulseung, Jaechan Park, Kangmun Lee, Ji Yeon Yang, and Taewoo Roh. "Energy Efficiency for Supplier and Sustainability for Demand: A Case of Heating Systems in South Korea." Sustainability 11, no. 15 (2019): 4216. http://dx.doi.org/10.3390/su11154216.

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This paper addresses an analysis of a recent debate in South Korea on energy efficiencies between a combined heat and power system with district heating (CHP-DH) and separate heat and power system (SHP) by applying a scenario analysis technique. In accordance with the Low Carbon Green Growth strategy where the rise of social awareness for energy savings is imminent, various scenarios were considered including CHP-DH (excluding waste heat recovery) versus SHP and CHP-DH (including waste heat recovery) versus SHP. To analyze the satisfaction on energy efficiency of each heating system, nationwid

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Xu, Bin, June Wang, Xinping Wang, et al. "A case study of digital-twin-modelling analysis on power-plant-performance optimizations." Clean Energy 3, no. 3 (2019): 227–34. http://dx.doi.org/10.1093/ce/zkz025.

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Abstract China Energy’s National Institute of Clean-and-Low-Carbon Energy (NICE) is developing a Power Plant Smart Management (PPSM) platform that employs digital-twin technology to undertake techno-economic modelling analysis on China Energy’s existing coal-fired power-plant units and explore cost-effective solutions to improve those plant units’ thermal efficiencies and operating performance. This paper presents a case study of PPSM on a 320-MWe coal-fired thermal power-plant unit, demonstrating how the digital-twin technology was employed to explore and analyse optimization solutions. Vario

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Viksne, Gustavs, Ilze Vamža, Viktorija Terjanika, Tereza Bezrucko, Jelena Pubule, and Dagnija Blumberga. "CO₂ Storage in Logging Residue Products with Analysis of Energy Production Scenarios." Environmental and Climate Technologies 26, no. 1 (2022): 1158–68. http://dx.doi.org/10.2478/rtuect-2022-0087.

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Abstract Woody logging residues produced by logging activities are currently an underutilised resource that is mainly burned for energy production or left in the forest to decay, thus releasing CO2 into the atmosphere. This resource could be used to manufacture long-lasting products and store a significant amount of CO2, promoting CO2 valorisation in rural areas. In this study, potential use for logging residues is proposed – the production of low-density wood fibreboard insulation panels. The new material’s potential properties, manufacturing method and combined heat and power (CHP) plant par

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Blarke, Morten, and Henrik Lund. "Large-scale heat pumps in sustainable energy systems: System and project perspectives." Thermal Science 11, no. 3 (2007): 143–52. http://dx.doi.org/10.2298/tsci0703143b.

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This paper shows that in support of its ability to improve the overall economic cost-effectiveness and flexibility of the Danish energy system, the financially feasible integration of large-scale heat pumps (HP) with existing combined heat and power (CHP) plants, is critically sensitive to the operational mode of the HP vis-?-vis the operational coefficient of performance, mainly given by the temperature level of the heat source. When using ground source for low-temperature heat source, heat production costs increases by about 10%, while partial use of condensed flue gasses for low-temperature

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Liu, Huanan, Ruoci Lu, Zhenlan Dou, Chunyan Zhang, and Songcen Wang. "A Distributed Multi-Timescale Dispatch Strategy for a City-Integrated Energy System with Carbon Capture Power Plants." Energies 17, no. 6 (2024): 1395. http://dx.doi.org/10.3390/en17061395.

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In city-integrated energy systems containing electric–thermal multi-energy sources, the uncertainty of renewable energy sources and the fluctuation of loads challenge the safe, efficient, economic and stable operation of the integrated energy systems. This paper introduces a novel approach for the operation of a carbon capture plant/CHP with PV accommodation within a city-integrated energy system. The proposed strategy aims to maximize the utilization of photovoltaic (PV) power generation and carbon capture equipment, addressing issues related to small-scale CHP climbing constraints and short-

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