A remote integrated energy system based on cogeneration of a concentrating solar power plant and buildings with phase change materials

Wang, Zhixun; Sun, Shitong; Lin, Xin; Liu, Chang; Tong, Ning; Sui, Quan; Li, Zhengtian

doi:10.1016/j.enconman.2019.02.094

Cited by 44 publications

(15 citation statements)

References 32 publications

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“…This increase was particularly significant during the discharge period, but it also slightly reduced efficiency. Similar findings were reported by Egolf et al [70] and again by Abuska et al [71]. Wang et al [72] suggested integration of PCM with the buildings and active management on a day-ahead scheduling basis.…”

Section: Methods Of Integration Of Pcms and Numerical Analysissupporting

confidence: 84%

Potential for Mitigation of Solar Collector Overheating Through Application of Phase Change Materials – A Review

Ranilović¹,

Grozdek²

2020

J. sustain. dev. energy water environ. syst.

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Demand for domestic hot water and heating is rarely perfectly concurrent with solar irradiation, which means that collectors can overheat in periods of high incident radiation and low demand. Phase change materials have been used as energy storage in space heating applications to absorbs excess heat during low demand periods for use in peak demand periods. This paper reviews the current state of research on the possibility of application of such materials as energy storage for solar collectors, in order to avoid collector overheating. Finally, various materials were evaluated and ranked for this application based on required properties and price. An example model of such materials being applied in a typical family house domestic hot water solar system is also provided.

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Section: Methods Of Integration Of Pcms and Numerical Analysissupporting

confidence: 84%

Potential for Mitigation of Solar Collector Overheating Through Application of Phase Change Materials – A Review

Ranilović¹,

Grozdek²

2020

J. sustain. dev. energy water environ. syst.

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“…By utilizing the time and space complementary characteristics of energy and power of multiple power sources such as wind turbines (WT) and photovoltaic (PV) units, coordinated scheduling of a multi-energy system can improve the operational flexibility of the system and expand the space for renewable energy consumption, thereby providing a new way to ensure secure and sustainable energy supplies. Therefore, how to improve the flexibility of IES to promote renewable energy consumption is of great significance [7].…”

Section: Nomenclaturementioning

confidence: 99%

Improving operational flexibility of integrated energy system with uncertain renewable generations considering thermal inertia of buildings

Wang

et al. 2020

Energy Conversion and Management

200

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Insufficient flexibility in system operation caused by traditional "heat-set" operating modes of combined heat and power (CHP) units in winter heating periods is a key issue that limits renewable energy consumption. In order to reduce the curtailment of renewable energy resources through improving the operational flexibility, a novel optimal scheduling model based on chance-constrained programming (CCP), aiming at minimizing the lowest generation cost, is proposed for a small-scale integrated energy system (IES) with CHP units, thermal power units, renewable generations and representative auxiliary equipments. In this model, due to the uncertainties of renewable generations including wind turbines and photovoltaic units, the probabilistic spinning reserves are supplied in the form of chance-constrained; from the perspective of user experience, a heating load model is built with consideration of heat comfort and inertia in buildings. To solve the model, a solution approach based on sequence operation theory (SOT) is developed, where the original CCP-based scheduling model is tackled into a solvable mixedinteger linear programming (MILP) formulation by converting a chance constraint into its deterministic equivalence class, and thereby is solved via the CPLEX solver. The simulation results on the modified IEEE 30-bus system demonstrate that the presented method manages to improve operational flexibility of the IES with uncertain renewable generations by comprehensively leveraging thermal inertia of buildings and different kinds of auxiliary equipments, which provides a fundamental way for promoting renewable energy consumption. (Y. Li).the most important choices for ensuring secure and sustainable energy supply [1], due to the advantages of renewable energies such as cleanness, easy availability, low cost, and abundance [2]. Unfortunately, the increasing uncertainties of renewable generations will pose huge challenges in the operation of today's power systems [3]. Furthermore, the traditional 'heat-set' constraints and growing curtailment of renewable energy resources greatly limit the flexibility and economy of the system operation [4]. At the same time, the presence of an integrated energy system (IES), which comprehensively utilizes multiple energies in a region to achieve coordinated planning and operations among multiple energy forms [5], provides more regulatory means available for enabling greater consumption of renewable energies [6]. By utilizing the time and space complementary characteristics of energy and power of multiple power sources such as wind turbines (WT) and photovoltaic (PV) units, coordinated scheduling of a multi-energy system can improve the operational flexibility of the system and expand the space for renewable energy consumption, thereby providing a new way to ensure secure and sustainable energy supplies. Therefore, how to improve the flexibility of IES to promote renewable energy consumption is of great significance [7]. Literature reviewUp to now, some pioneering works regarding IES h...

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“…The result shows that the maximum volume fraction at the bottom part is used to select a concentrating power plant effectively when the three layers thermocline tank is used. Wang et al (2019) enhanced thermal energy consumption by assembling the concentrating solar power plant and the combined power and heat unit. For designing cooling and heating storage, buildings were incorporated with PCM to produce power saving of interior loads and help achieve the efficient operation of predictable units.…”

Section: Concentrating Solar Unitmentioning

confidence: 99%

Review on phase change materials for solar energy storage applications

Naveenkumar¹,

Ravichandran²,

Mohanavel

et al. 2021

Environ Sci Pollut Res

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The energy storage application plays a vital role in the utilization of the solar energy technologies. There are various types of the energy storage applications are available in the todays world. Phase change materials (PCMs) are suitable for various solar energy systems for prolonged heat energy retaining, as solar radiation is sporadic. This literature review presents the application of the PCM in solar thermal power plants, solar desalination, solar cooker, solar air heater, and solar water heater. Even though the availability and cost of PCMs are complex and high, the PCMs are used in most solar energy methods due to their significant technical parameters improvisation. This review's detailed findings paved the way for future recommendations and methods for the investigators to carry work for further system developments.

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A remote integrated energy system based on cogeneration of a concentrating solar power plant and buildings with phase change materials

Cited by 44 publications

References 32 publications

Potential for Mitigation of Solar Collector Overheating Through Application of Phase Change Materials – A Review

Potential for Mitigation of Solar Collector Overheating Through Application of Phase Change Materials – A Review

Improving operational flexibility of integrated energy system with uncertain renewable generations considering thermal inertia of buildings

Review on phase change materials for solar energy storage applications

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