Comparison of Linear Fresnel and Parabolic Trough Collector power plants

Morin, Gabriel; Dersch, Jürgen; Platzer, Werner; Eck, Markus; Häberle, Andreas

doi:10.1016/j.solener.2011.06.020

Cited by 315 publications

(134 citation statements)

References 2 publications

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“…A steady state model for the CSP plant was developed according to literature [24,25,26] and by taking into account the technical data provided by the manufacturers of the different equipments. The model allows to predict the hourly thermal production profiles of the solar field on the basis of the weather forecasts and by considering the effect of collector optical efficiency, incident angle modifiers, collector end losses, cleanliness factor and the thermal losses in the receiver and in the piping.…”

Section: Preliminary Simulation Results On Small Scale Csp the Simulamentioning

confidence: 99%

Progress in preliminary studies at Ottana Solar Facility

Demontis

Camerada

Cau

et al. 2016

AIP Conference Proceedings

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Abstract. The fast increasing share of distributed generation from non-programmable renewable energy sources, such as the strong penetration of photovoltaic technology in the distribution networks, has generated several problems for the management and security of the whole power grid. In order to meet the challenge of a significant share of solar energy in the electricity mix, several actions aimed at increasing the grid flexibility and its hosting capacity, as well as at improving the generation programmability, need to be investigated. This paper focuses on the ongoing preliminary studies at the Ottana Solar Facility, a new experimental power plant located in Sardinia (Italy) currently under construction, which will offer the possibility to progress in the study of solar plants integration in the power grid. The facility integrates a concentrating solar power (CSP) plant, including a thermal energy storage system and an organic Rankine cycle (ORC) unit, with a concentrating photovoltaic (CPV) plant and an electrical energy storage system. The facility has the main goal to assess in real operating conditions the small scale concentrating solar power technology and to study the integration of the two technologies and the storage systems to produce programmable and controllable power profiles. A model for the CSP plant yield was developed to assess different operational strategies that significantly influence the plant yearly yield and its global economic effectiveness. In particular, precise assumptions for the ORC module start-up operation behavior, based on discussions with the manufacturers and technical datasheets, will be described. Finally, the results of the analysis of the: "solar driven", "weather forecasts" and "combined storage state of charge (SOC)/ weather forecasts" operational strategies will be presented.

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Section: Preliminary Simulation Results On Small Scale Csp the Simulamentioning

confidence: 99%

Progress in preliminary studies at Ottana Solar Facility

Demontis

Camerada

Cau

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…In addition, the fixed nature of the receiver assembly provides considerable design freedom. Linear Fresnel collectors have lower optical/thermal efficiency than parabolic troughs because the combination of a fixed receiver and the one-axis tracking mirror panels in a horizontal plane results into greater cosine losses than troughs [60][61][62][63]. The lower cost collector components are often required to compensate this optical penalty.…”

Section: Linear Fresnelmentioning

confidence: 99%

“…Although LF has better opportunities for large scale power plant development in terms of land use, but lacks with overall efficiency. A different research found that LF requires 35% smaller solar field due to smaller row-to-row distance when it compares with PT [19,117,120,121,[124][125][126]. ST can reach up to 27% efficiency at its peak at higher cost in terms of land use.…”

Section: Comparison Of Optionsmentioning

confidence: 99%

Technological assessment of different solar-biomass systems for hybrid power generation in Europe

Hussain¹,

Norton²,

Duffy³

2017

Renewable and Sustainable Energy Reviews

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Abstract:Solar Tower thermal (ST), Parabolic Trough thermal (PT), Linear Fresnel thermal (LF) and Solar PV are discussed in the context of suitability for hybridization with biomass in Europe.Technical, economical and climate data have been compared to identify the key drivers of technology selection in setting up large scale solar-biomass hybrid power plants. The sole solar-biomass hybrid power plant is currently in operation in Spain uses PT technology due to its performance characteristics, comparatively easy installation process compared to ST and relatively higher heat and optical gain than LF. The climate condition in the EU shows that the region within average yearly direct normal irradiance (DNI) 1400 -1800 kWh/m 2 can be useful for CSP hybridization as the distribution periods of high intensity of DNI of solar energy justify integrating biomass. Of the three concentrated solar power (CSP) technologies, ST provides the best overall efficiency for combined heat and power (CHP) generation.

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“…The number of staff required for the solar field and rest of the plant is assumed to be 2 persons/hectare and 10 employees respectively (control, hauling ice, repairs, security, etc.) The cost of the water consumption is taken to be 1.73 $/MWh [30]. And the annual part replacement and plant insurance cost are both assumed to be 1% of the total capital cost.…”

Section: 2mentioning

confidence: 99%

“…(29) where A r is the receiver's absorber area and C p is the specific heat capacity of the HTF. The useful heat gain, Q u , is determined from: (30) where, (31) and T in and T a are the receiver inlet temperature and ambient temperature. The fluid temperature rise, ∆T, for a given mass flow rate is calculated from: (32) The receiver sections which act as a pre-heater, evaporator and boiler have to be treated individually.…”

Section: 2mentioning

confidence: 99%

The feasibility of hybrid solar-biomass power plants in India

Nixon

Dey

Davies

2012

Energy

105

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We assess the feasibility of hybrid solar-biomass power plants for use in India in various applications including tri-generation, electricity generation and process heat. To cover this breadth of scenarios we analyse, with the help of simulation models, case studies with peak thermal capacities ranging from 2-10 MW. Evaluations are made against technical, financial and environmental criteria. Suitable solar multiples, based on the trade-offs among the various criteria, range from 1-2.5. Compared to conventional energy sources, levelised energy costs are high -but competitive in comparison to other renewables such as photovoltaic and wind. Long payback periods for hybrid plants mean that they cannot compete directly with biomass-only systems. However, a 1.2-3.2 times increase in feedstock price will result in hybrid systems becoming cost competitive. Furthermore, in comparison to biomass-only, hybrid operation saves up to 29% biomass and land with an 8.3-24.8 $/GJ/a and 1.8-5.2 ¢/kWh increase in cost per exergy loss and levelised energy cost. Hybrid plants will become an increasingly attractive option as the cost of solar thermal falls and feedstock, fossil fuel and land prices continue to rise. In the foreseeable future, solar will continue to rely on subsidies and it is recommended to subsidise preferentially tri-generation plants.Keywords: solar thermal; tri-generation; linear Fresnel reflector (LFR); energy policy; exergy. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 4 1. Introduction India receives a high level of Direct Normal Irradiance (DNI), 4-7 kWh/m 2 per day. Thus, there is a vast potential for decentralised solar energy applications using Concentrating Solar thermal Power (CSP). However, CSP technologies are currently expensive and the uptake in India has been slow. The Jawaharlal Nehru National Solar Mission was established in 2010 and outlined support for solar energy applications to encourage market penetration of gridconnected and decentralized off-grid applications, to provide energy services in India [1, 2]. One CSP technology of particular interest is the Linear Fresnel Reflector (LFR), due to its comparatively simple and inexpensive design. The LFR uses multiple rows of low profile mirrors to focus solar radiation onto a fixed target pipe to generate steam directly. Such Direct Steam Generation (DSG) is an alternative to the more commonly employed Heat Transfer Fluids (HTFs) -synthetic oil and molten salt -and has the potential to increase CSP plant efficiency and reduce costs [3]. However, thermal energy is difficult to store in DSG syste...

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Comparison of Linear Fresnel and Parabolic Trough Collector power plants

Cited by 315 publications

References 2 publications

Progress in preliminary studies at Ottana Solar Facility

Progress in preliminary studies at Ottana Solar Facility

Technological assessment of different solar-biomass systems for hybrid power generation in Europe

The feasibility of hybrid solar-biomass power plants in India

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