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Energy, exergy, and economic analyses of an innovative energy storage system; liquid air energy storage (LAES) combined with high-temperature thermal energy storage (HTES) Energ Conver Manage, 226 ( 2020 ), Article 113486, 10.1016/j.enconman.2020.113486
One of the efficient solar energy harvesting technics is the parabolic trough concentrated solar power plant. However, if the concentrated solar power plant were not equipped with a storage system, the power plant capacity factor would be deficient. Latent thermal energy storage system using phase change material (PCM) is a high
In the present paper, a novel solar driven-polygeneration energy system with electrical energy storage is introduced and investigated. The cycle power generation section is composed of parabolic trough collector field, proton-exchange membrane fuel cell, organic Rankine cycle, alkaline electrolyzer, and thermoelectric generator.
Section snippets System description and working principle A schematic diagram of the parabolic trough solar thermal power generation systems is shown in Fig. 1, which consists of the trough collector field, thermal storage system, auxiliary energy system, heat
Development of a Thermal Energy Storage System for Parabolic Trough Power Plants With Direct Steam Generation May 2010 Journal of Solar Energy Engineering 132(2010-05):10111-10118 DOI:10.1115
In the present work an experimental study is carried out to investigate the performance of a solar parabolic trough collector (PTC) integrated with a storage unit.
In a concentrating solar power (CSP) system, the sun''s rays are reflected onto a receiver, which creates heat that is used to generate electricity that can be used immediately or stored for later use. This enables CSP
Since the thermal storage system used Caloria®, its operating temperature was between 218°C and 302°C. The tank was designed for a thermal capacity of 182 MWht. It used 6170 tonnes (1 tonne51000 kg) of rock and sand and 906 m3of Caloria®. Physically, the storage tank stood 13.3-m tall and 18.2-m diameter@1#.
For the sectional heating system, the overall energy storage efficiency of the plant can be calculated by Eq. 2—NaNO3—KNO3 molten salt mixtures for direct thermal energy storage systems in parabolic trough
Furthermore, the energy and exergy analyses on overall system were developed, and results indicated the system average efficiency can reach 1.5%. Novelty statement Experimental study on parabolic trough concentrated solar ORC system with nitrate salt as heat transfer and storage medium were firstly analyzed.
Using the return flow system causes the exhaust air, which has high thermal energy, partially returned to the system and the inlet air to the entrance the drying system with high energy. The following works are some important studies on the use of reciprocating flow systems with energy storage materials used in solar dryers to dry the
This study aims to present the state-of-the-art of parabolic trough solar collector technology with a focus on different thermal performance analysis methods and components used in the fabrication of collector together
Thermal storage improves the dispatchability and marketability of parabolic trough power plants allowing them to produce electricity on demand independent of solar collection. One such thermal storage system, a thermocline, uses a single tank containing a fluid with a thermal gradient running vertically through the tank, where hotter
The most advanced thermal energy storage for solar thermal power plants is a two-tank storage system where the heat transfer fluid (HTF) also serves as storage medium. This concept was successfully demonstrated in a commercial trough plant (13.8 MW e SEGS I plant; 120 MWh t storage capacity) and a demonstration tower plant (10
The system consists of a PTC, a thermal energy storage (TES) tank containing 230 L of Therminol 55 which is also used as the heat transfer fluid (HTF) and a positive displacement pump.
Parabolic Trough Collectors (PTCs) are a well-established technology for concentrating solar energy and converting it into heat for various industrial applications and power generation. However, their deployment has been accompanied by several challenges that have been documented in research and case studies.
The availability of storage capacity plays an important role for the economic success of solar thermal power plants. For today''s parabolic trough power plants,
One advantage of parabolic trough power plants is their potential for storing solar thermal energy to use during non-solar periods and to dispatch when it''s needed most. As a result, thermal energy storage (TES) allows parabolic trough power plants to achieve higher annual capacity factors—from 25% without thermal storage up
The Parabolic Trough Collector, having a resulting average thermal efficiency value of 21%, provided the useful energy to store over 4.25kWh of heat in the tank during the initial testing of the
Compared with the pre-optimization system, the round-trip efficiency, exergy efficiency, and energy storage density of the system increase by 0.47 %, 0.43 %, and 1.33 kWh/m 3, respectively, while the levelized cost
Latent thermal energy storage system using phase change material (PCM) is a high energy density storage system to provide durable energy with a constant temperature. In this study, first, a dynamic analysis is performed implementing TRNSYS software on the parabolic trough concentrated solar power plant located in Shiraz, Iran.
The parabolic trough collectors are the most widely used linear concentrators for the thermodynamic conversion of solar energy, especially in industrial and domestic fields which require an operating temperature between 80 and 160 °C. The importance of these devices has led the various researchers to study the improvement of
Abstract. The availability of storage capacity plays an important role for the economic success of solar thermal power plants. For today''s parabolic trough power plants, sensible heat storage
The parabolic trough collector, vanadium chloride thermochemical cycle, hydrogen storage tank, alkaline fuel cells, thermal energy storage, and absorption chiller make up the suggested smart system.
Abstract. This paper presents the numerical analysis of a novel thermal energy storage (TES) system using phase change material (PCM) for direct steam solar
Two storage tank sensible energy storage with molten salt as the energy storage medium is the most common energy storage method in commercial CSP
For future parabolic trough plants direct steam generation in the absorber pipes is a promising option for reducing the costs of solar thermal power generation.
The basic principle behind the parabolic trough system is to concentrate sunlight onto a receiver tube, which heats a fluid and creates steam to power a turbine and generate electricity. This process is known as solar thermal power, and it is one of the most efficient ways to generate electricity using solar energy.
It has been established that the development of a storage option and increasing the operating temperature for parabolic trough electric systems can significantly reduce the levelized electricity cost compared to the current state of the art. Both improvements require a new heat transfer fluid that must have a very low vapor pressure
The electrical storage, round-trip, energy storage, and exergy efficiencies of the proposed energy storage system are 57.62%, 45.44%, 79.87%, and 40.17%, respectively. The most exergy destruction belongs to the heat exchangers section, which accounts for 50.85% of the total exergy destruction.
evacuated glass cover is used to reduce the convection heat loss from the absorber. Figure 1 ( a) shows the schem atic view of the parabolic trough col lector. In this work a solar PTC of 7.5 m
Due to the integration of the thermal energy storage (TES) system, the CSP system enables stable and continuous electricity generation throughout the day,
Thermal storage improves the dispatchability and marketability of parabolic trough power plants allowing them to produce electricity on demand
Laing, D, Bauer, T, Lehmann, D, & Bahl, C. "Development of a Thermal Energy Storage System for Parabolic Trough Power Plants With Direct Steam Generation." Proceedings of the ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences .
The efficiency and capital cost of a thermal energy storage system are mostly affected by the cycling time and volumetric energy storage capacity (Steinmann, 2014). Thermal energy storage based on energy conversion to sensible heat, latent heat, thermochemical energy or a combination of them is one of the most promising methods
In situ latent thermal energy storage in underfloor heating system of building connected to the parabolic trough solar collector-an experimental study J Energy Storage, 44 ( Dec. 2021 ), Article 103489, 10.1016/J.EST.2021.103489
The present study focuses on the performance analysis of parabolic trough collector (PTC) incorporated with single-tank thermal energy storage (TES) system with the use of two different reflective materials in PTC which includes glass and high-reflective stainless steel sheet. It consists of TES tank which contains 110 L of Therminol-66 oil
Period 2 includes target demand and that is why storage dispatch fraction with and without storage is 0, which means that the TES system is maximally used for satisfaction of the target demand. The dispatch schedule presented in Fig. 6 has been chosen because it maximizes utilization of TES during months which are not included in
For future parabolic trough plants direct steam generation in the absorber pipes is a promising option for reducing the costs of solar thermal power generation. These new solar thermal power plants require innovative storage concepts, where the two phase heat transfer fluid poses a major challenge. A three-part storage system is proposed
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