Power cycles integration in concentrated solar power plants with energy storage based on calcium looping

Ortíz, C.; Chacartegui, Ricardo; Valverde, José Manuel García; Alovisio, A.; Becerra, J. A.

doi:10.1016/j.enconman.2017.03.029

Cited by 142 publications

(85 citation statements)

References 66 publications

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“…Vignarooban et al [16] reviewed a technical aspect on heat transfer fluid that is one important component for storing and transferring thermal energy into solar power. Ortiz et al [17] considered that a key component of CSP was efficient energy storage. They proposed a power cycle integration system within CSP sites that included energy storage based on calcium looping.…”

Section: Previous Studiesmentioning

confidence: 99%

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Sueyoshi

Goto

2019

Energies

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To change an increasing trend of energy consumption, many counties have turned to solar thermal energy as a solution. Without greenhouse gas emissions, solar thermal power stations may play a vital role in the energy industry because they have a potential to produce electricity for 24 h per day. The goal of this study is to select solar thermal power stations from three regions (i.e., the United States, Spain and the other nations) throughout the world and to identify which region most efficiently produces solar thermal power energy. To measure their efficiencies, we use data envelopment analysis as a method to examine the performance of these power stations. Our empirical results show that the United States currently fields the most efficient solar thermal power stations. This study also finds that parabolic trough technology slightly outperforms the other two technologies (i.e., heliostat power tower and linear Fresnel reflector), but not at the level of statistical significance. In addition to the proposed efficiency assessment, we incorporate a new way of finding a possible existence of congestion. The phenomenon of congestion is separated into output-based and input-based occurrences. Output-based congestion implies a capacity limit (e.g., difficulties in transmission, voltage control and dispatch scheduling) in a grid network between generation and end users. Input-based congestion occurs when generators use “uncontrollable inputs” (e.g., sunlight hours). Renewable energy sources, such as solar thermal power, are indeed important for our future sustainability. However, this needs performance assessment on generation and transmission through which electricity generated by renewable energy is conveyed to end users. Such a holistic assessment, including both efficiency measurement and congestion identification, serves as a major component in evaluating and planning renewable energy generation.

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Section: Previous Studiesmentioning

confidence: 99%

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Sueyoshi

Goto

2019

Energies

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“…S‐CO 2 systems are universal, are efficient, and have small footprint. Due to these advantages, S‐CO 2 systems are widely researched for the next generation heat‐power conversion systems such as solar power, fossil fuel, waste heat recovery, and nuclear energy …”

Section: Introductionmentioning

confidence: 99%

“…13,14 S-CO 2 systems are universal, are efficient, and have small footprint. Due to these advantages, S-CO 2 systems are widely researched for the next generation heat-power conversion systems such as solar power, [15][16][17] fossil fuel, 18 waste heat recovery, 19,20 and nuclear energy. 13,14,21 KAIST-MMR is a 10-MWe scale S-CO 2 direct-cycle SMR designed to operate for 20 years without fuel reloading.…”

Section: Introductionmentioning

confidence: 99%

Radionuclide transport in a long‐term operation supercritical CO ₂ ‐cooled direct‐cycle small nuclear reactor

Son

Kwon

et al. 2020

Int J Energy Res

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Summary In recent years, to overcome the challenges of nuclear power plants due to their large scale, numerous types of small modular reactors are being designed worldwide. Small modular reactors are required to have a capability to operate in environmentally challenging regions with long refueling time. Supercritical CO2 (S‐CO2)‐cooled direct‐cycle reactor is one of the candidates that can meet these requirements. In order to evaluate if the design achieves this goal, transport of generated radionuclides from the long‐term operation has to be evaluated in order to estimate the radioactivity accumulation in the system. However, existing radionuclide transport evaluation method does not reflect the characteristics of supercritical fluids properly. In this paper, the fission product plate‐out behavior of Korea Advanced Institute of Science and Technology Micro Modular Reactor (KAIST‐MMR), a 10‐MWe class S‐CO2‐cooled fast reactor with direct S‐CO2 power conversion system, is studied. The evaluation methodology was developed via integrating suitable models while considering the shape of the nuclear fuel, component geometries, characteristics of a working fluid in supercritical state, and the fast reactor design. As a result of the analysis, the degree of plate‐out of KAIST‐MMR is not expected to have serious radioactivity accumulation within the components. Most of the sorption occurred at the turbine and recuperator hot‐side inlet region. In particular, the dose rate of the turbine was quite low, because the size of the turbine is very small.

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“…They used air and therminol oil as heat transfer fluid (HTF) and concluded when air is HTF, maximum exergy efficiency is 25.62% while for therminol oil is 31.67%. Many advances in the last two decades were performed in the sense of CSP to be cost effective . Alashkar et al analyzed a solar power plant economically.…”

Section: Introductionmentioning

confidence: 99%

“…Many advances in the last two decades were performed in the sense of CSP to be cost effective. 8,9 Alashkar et al 10 analyzed a solar power plant economically. The energy analysis obtained from the first thermodynamic law, gives quantitative evaluation of different energy losses taking place in all the components.…”

Section: Introductionmentioning

confidence: 99%

Exergy analysis of a hybrid solar‐fossil fuel power plant

Vakilabadi

Bidi

Najafi

et al. 2019

Energy Science & Engineering

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In this study, exergy analysis, energy analysis, and mathematical modeling are performed in a 35 MW solar‐fossil fuel power plant. The losses of exergy and energy in different components and also changes of the efficiency of exergy and energy are analyzed at a specific day, 20th June. The assumed power plant in this study is Solar Electric Generating Station VI (SEGS VI), located in California's Mojave Desert. A parametric study, under different working conditions, including different working pressures, temperatures, collector output temperature, steam flow rate, and heat transfer fluid (HTF) flow rate is studied and the effect of variation of parameters on the performance of the plant is investigated. Authors found that, the maximum exergy loss happens in the collector and the maximum energy loss occurs in the condenser. Energy analysis shows that 47% of the total loss energy in the cycle happens in the condenser, as the main component that wastes energy. From exergy analysis, the collector and then boiler are the main components wasting exergy where 68.32% of total exergy loss occurs in these two components in hybrid mode (solar‐fossil fuel). Exergy and Energy efficiency variations throughout the day show that minimum exergy efficiency (32.7%) and maximum energy efficiency (23%) occurs at 12 am. Exergy efficiency variation versus turbine inlet pressure shows that the maximum exergy efficiency (26%) accure at 95 bar. The changes of the absorbed heat and solar irradiation of the 20th of June shows a good agreement with the measured data in validated reference.

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Power cycles integration in concentrated solar power plants with energy storage based on calcium looping

Cited by 142 publications

References 66 publications

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Radionuclide transport in a long‐term operation supercritical CO ₂ ‐cooled direct‐cycle small nuclear reactor

Exergy analysis of a hybrid solar‐fossil fuel power plant

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Power cycles integration in concentrated solar power plants with energy storage based on calcium looping

Cited by 142 publications

References 66 publications

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Comparison among Three Groups of Solar Thermal Power Stations by Data Envelopment Analysis

Radionuclide transport in a long‐term operation supercritical CO 2 ‐cooled direct‐cycle small nuclear reactor

Exergy analysis of a hybrid solar‐fossil fuel power plant

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Radionuclide transport in a long‐term operation supercritical CO ₂ ‐cooled direct‐cycle small nuclear reactor