Search results for "Exergoeconomics"

showing 5 items of 5 documents

Exergoeconomic analysis as support in decision-making for the design and operation of multiple chiller systems in air conditioning applications

2020

Abstract Multiple-chillers systems represent viable solutions for medium/large-scale air conditioning applications characterized by variable cooling demand. The energy efficiency of such systems is influenced by the number of chillers, the combination of cooling capacities, and the load-sharing among the units. Large efforts have been devoted to developing efficient operation strategies for these systems, but rules of thumb are usually adopted for selecting cooling capacities thus leaving room for energy and economic savings. In this paper, exergoeconomic analysis is proposed as a promising method to identify near-optimal design and operation strategies, due to the capability of exergoecono…

ChillerRenewable Energy Sustainability and the Environmentbusiness.industryComputer science020209 energyEnergy Engineering and Power Technology02 engineering and technologyRule of thumbReduction (complexity)Variable (computer science)Fuel Technology020401 chemical engineeringNuclear Energy and EngineeringAir conditioningMultiple-chillers systems Air conditioning Exergoeconomics Plant design Control strategy CostChilled water0202 electrical engineering electronic engineering information engineeringSettore ING-IND/10 - Fisica Tecnica Industriale0204 chemical engineeringProcess engineeringbusinessEnergy (signal processing)Efficient energy use
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Thermoeconomic optimization of a renewable polygeneration system serving a small isolated community

2015

During the last years, special attention has been paid to renewable polygeneration technologies, able of simultaneously producing thermal, cooling, electrical energy and desalinated water from seawater. This paper focuses on an innovative polygeneration system driven by renewable energy sources, including the following technologies: hybrid photovoltaic/thermal collectors, concentrating parabolic trough (CPVT), a biomass heater, a single-stage absorption chiller and a multiple-effect distillation desalination system. The system is designed to cover the base load of an isolated small community. In previous papers, the dynamic simulation model about plant operation is discussed. In this paper,…

ExergyEngineeringSolar desalinationControl and Optimizationexergy analysiSolar heating/cooling Photovoltaic/thermal collectors Solar desalinationEnergy Engineering and Power TechnologyDesalinationlcsh:Technologyjel:Q40Exergoeconomicjel:Qjel:Q43jel:Q42jel:Q41Parabolic troughSettore ING-IND/10 - Fisica Tecnica Industrialejel:Q48jel:Q47Electrical and Electronic EngineeringEngineering (miscellaneous)jel:Q49exergoeconomicsWaste managementphotovoltaic/thermal collectors (PVT)Renewable Energy Sustainability and the Environmentbusiness.industrylcsh:Tsolar heating and coolingPhotovoltaic systemjel:Q0multiple-effect distillation (MED)jel:Q4Renewable energysolar heating and cooling; photovoltaic/thermal collectors (PVT); solar desalination; multiple-effect distillation (MED); exergy analysis; exergoeconomicsBase load power plantExergy efficiencySolar desalinationbusinessexergy analysisEnergy (miscellaneous)
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Exergetic and exergoeconomic analysis of a renewable polygeneration system and viability study for small isolated communities

2015

Abstract A great interest has recently arisen for the sustainable supply of energy and fresh water, due to the growing demand from developing countries. Facing this demand by traditional technologies implies evident risks related with the high cost of fossil fuels and their environmental impact. Then, alternative solutions based on the use of renewable sources and innovative technologies must be considered. In this paper a renewable polygeneration system is examined, which includes a solar field based on parabolic trough photovoltaic/thermal collectors, a biomass heater, an absorption chiller and a Multiple Effect Distillation desalination unit. Plant operation under dynamic conditions has …

ExergyEngineeringbusiness.industryMechanical EngineeringFossil fuelEnvironmental engineeringContext (language use)Building and ConstructionPollutionIndustrial and Manufacturing EngineeringRenewable energyExergoeconomics Exergy analysis Multiple effects distillation Photovoltaic thermal collectorsSolar Heating and Cooling Solar desalination Photovoltaic thermal collectors Multiple effects distillation Exergy analysis ExergoeconomicsGeneral EnergyMultiple-effect distillationParabolic troughExergy efficiencySettore ING-IND/10 - Fisica Tecnica IndustrialeElectrical and Electronic EngineeringbusinessProcess engineeringSolar desalinationCivil and Structural Engineering
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Exergetic and exergoeconomic analysis of a renewable polygeneration system serving a small isolated community

2014

A great interest has been arising in the last decade for the sustainable supply of energy and fresh water, also due to the rapidly growing demand from developing countries. Facing this demand by traditional technologies and fossil energy sources implies evident difficulties and risks, because of the scarcity and high cost of fuels and their relevant environmental impact in terms of local pollution and global warming emissions. Then, the efforts of researchers have been focusing on alternative solutions, either based on the use of renewable energy sources and on innovative plant schemes for the combined and efficient production of several energy and material flows. In this paper an innovativ…

Solar heating and cooling PVT solar desalination MED exergy analysis exergoeconomicsSettore ING-IND/10 - Fisica Tecnica Industriale
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Exergoeconomics as a Cost-Accounting Method in Thermal Grids with the Presence of Renewable Energy Producers

2022

Thermal grids are efficient, reliable, and sustainable technologies for satisfying the thermal demands of buildings. The capability to operate at a low temperature allows not only for the integration of heat produced by renewable energy sources but also for the storage of surplus electricity from the grid via “power to heat” technologies. Besides, in the future, heat consumers are expected to behave increasingly as “prosumers”, supplying in some periods heat produced by renewable energy plants on site. In this scenario, it is important to propose a method for the cost allocation among producers connected to the grid. In this regard, this paper proposes Exergoeconomic…

thermal gridexergyexergoeconomic unit costprosumersExergoeconomicsRenewable Energy Sustainability and the EnvironmentGeography Planning and Developmentcost accountingManagement Monitoring Policy and Lawrenewable energySustainability
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