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Monthly Energy, Exergy, Environmental, and Economic Performance and Green Hydrogen Production Analysis of a Flat-Plate Solar Collector-Driven Organic Rankine Cycle System Under Variable Mass Flow and Irradiance. [PDF]

open access: yesChemistryOpen
The feasibility of using a hybrid flat‐plate solar collector–organic Rankine cycle–proton exchange membrane system for the generation of electricity, heat, and hydrogen simultaneously is analyzed. The energy efficiency of the solar thermal system reaches 23.82%, and hydrogen production of up to 13.62 kg/month is achieved while reducing CO2 emissions ...
Atiz A, Bozkurt I, Karakilcik M.
europepmc   +2 more sources

Exergy-Based Multi-Objective Optimization of an Organic Rankine Cycle with a Zeotropic Mixture [PDF]

open access: yesEntropy, 2021
In this paper, the performance of an organic Rankine cycle with a zeotropic mixture as a working fluid was evaluated using exergy-based methods: exergy, exergoeconomic, and exergoenvironmental analyses.
Zineb Fergani   +2 more
doaj   +2 more sources

Constructal thermodynamic optimization for a novel Kalina-organic Rankine combined cycle to utilize waste heat

open access: yesEnergy Reports, 2021
Kalina cycle and organic Rankine cycle have different optimal heat source temperatures. To realize cascade utilization of low-temperature waste heat, a model of novel Kalina-organic Rankine combined cycle is established by using a dual-pressure Kalina ...
Zhixiang Wu   +3 more
doaj   +1 more source

Performance Analysis and Working Fluids Selection of Organic Rankine Cycle in a Triple Power Generation System Combined with Gas Turbine and Solid Oxide Fuel Cell Cycles [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2023
Many industrial processes have low temperature heat losses and are generally ignored due to the lack of effective heat recovery methods. Ignoring these heat sources can cause heat pollution and damage to the environment. Using the low-temperature organic
Jamasb Pirkandi   +2 more
doaj   +1 more source

Research on synchronous optimization effect of working fluid components and node parameters of organic Rankine cycle (ORC)

open access: yesCase Studies in Thermal Engineering, 2022
In this paper, a new numerical optimization algorithm which can simultaneously optimize the components and operating parameters of organic Rankine cycle is proposed and applied to single-stage organic Rankine cycle and two-stage organic Rankine cycle ...
Conghui Gu   +4 more
doaj   +1 more source

Power generation in white cement plants from waste heat recovery using steam-organic combined Rankine cycle

open access: yesCase Studies in Chemical and Environmental Engineering, 2021
Cement is one of the highly energy-intensive industries. Producing one ton of cement consumes 3-4-GJ which represent about 40% of the variable costs of cement production. Moreover, fuel cost represents 26–34% of production costs.
A.M. Khater   +3 more
doaj   +1 more source

Comprehensive evaluation of concentrated solar collector and Organic Rankine cycle hybrid energy process with considering the effects of different heat transfer fluids

open access: yesEnergy Reports, 2021
Solar energy based power generation systems can reduce pollutants emissions by reducing fossil fuel consumption. A new option for this idea is the Organic Rankine cycle coupled with a concentrating solar collector.
Kai Sun   +3 more
doaj   +1 more source

Low Temperature Power Cycle Using Amine – CO2 Fluid [PDF]

open access: yesMATEC Web of Conferences, 2021
Low temperature heat below 473K is produced massively. Kalina cycle using NH3 and Organic Rankine cycle using HFC-245fa can generate electricity from the low temperature heat. However, the former is toxic and corrosive and the latter has a high GWP value,
Ogawa Takashi   +3 more
doaj   +1 more source

Thermodynamic, economic, and environmental performance comparison of typical geothermal power generation systems driven by hot dry rock

open access: yesEnergy Reports, 2022
Hot dry rock has attracted broad attention due to its relatively high temperature and abundant resources. To match the power generation system suitable for low dryness hot dry rock geothermal fluid, this paper constructed four power generation systems ...
Tailu Li   +4 more
doaj   +1 more source

Energy and exergy analysis of a combined system cascade organic Rankine cycle and cascade refrigerat

open access: yesJournal of Thermal Engineering, 2021
In this paper, a new combined system is proposed for recovering thermal energy at medium temperature using a cascade organic Rankine cycle to feed a cascade refrigeration cycle.
Touaibi RABAH   +4 more
doaj   +1 more source

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