دانلود رایگان مقاله لاتین فرنل خطی بازتابنده از سایت الزویر
عنوان فارسی مقاله:
فرنل خطی بازتابنده به عنوان یک سیستم خورشیدی برای گرم کردن آب: نظری و تجربی
عنوان انگلیسی مقاله:
A linear Fresnel reflector as a solar system for heating water: Theoretical and experimental study
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Fresnel collectors have two types: the linear Fresnel reflector (LFR) and the Fresnel lens collector (FLC) [1]. The linear Fresnel mirror concentrator technology is still young and has taken place in the field of concentrating solar systems, this technology was conceived by the French physicist Augustin-Jean FRESNEL (1788–1827), he was used this technique in the optical system of the marine indication headlights [2]. The work of Alessandro Battaglia is the origin of the concentration technique by linear Fresnel reflector [3,4]. The Italian mathematician Giovanni Francia (1911–1980), designed the first prototype of linear Fresnel concentrator with the downward facing aperture covered with glass honeycomb tubes at Marseille built in 1962, he got on the performance equal to 60% and steam water temperature equivalent to 450 °C [5]. In the general case and according to the literature searches, the performance of this type of concentrator is varied between 30% and 40% [6,7]. In this day of many international institutions are investing and working to develop this technology, for instance at Almeria in Spain, the German company NOVATEC BIOSOL built the first commercial linear Fresnel reflector plant in the world. This electric station has a capacity of 1.4 MW, and since March 2009, their power supplies the local electricity power lines [8]. In France and since August 2010, CNIM group invested the only module of its Linear Fresnel solar concentrator atthe site of Lagoubran to generate electricity from a steam turbine [8]. In Australia, the company Areva has developed the technology of a linear Fresnel concentrator for electricity generation, Australia has two central, the first is Kimberlina in Bakersfield, California with a rated power of 24 MW, the second central will be built in Kogan Creek near Dalby at Australia, where their capacity equal to 44 MW [8]. There are many studies, addressed to use of the technology of linear Fresnel reflector, including the study conducted by Choudhury et al. [9], they made a design and analysis of a linear Fresnel Reflector (LFR), where they got the concentration ratio of 18% with two-thirds of the periphery of a tubular receiver of 0.025 m in diameter, their concentration can produce temperatures above 350 °C. Singh et al. [10], who studied the performance of the linear Fresnel solar concentration device with a single absorber tube of an aluminum which contains Hytherm-500 oil as heat carrier fluid. Mills et al. [11], they evaluated concept of a compact linear Fresnel (CLFR), assuming that the size of the solar field will be great, because it must be designed for the production of electricity across MW. In the field of water heating in the range between 60 and 95 °C, Singh et al. [10], studied the thermal performance of the linear Fresnel concentrator which contains a trapezoidal cavity with two types of absorber tubes (rectangular and circular). The reflector performance of their collectors is varied between 16% and 64%, depending on the shape of the absorber tubes and the quality of the selective surface [12]. Moghimi et al. used the Computational Fluid Dynamics (CFD) to estimate the optical efficiency of linear Fresnel reflector, their study is considered a new or innovative computational approach for an accurate assessment of the contributions of heat loss in a multitube trapezoidal cavity receiver [13]. In another study, Moghimi et al. conducted a mathematical optimization on the trapezoidal cavity absorber for the Linear Fresnel Reflector In order to get the optimal designs of the cavity, the objectives of their study are finding the most appropriate architecture to reduce heat losses and side wind load [14].
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کلمات کلیدی:
Design and thermal performances of a scalable linear Fresnel reflector ... www.sciencedirect.com/science/article/pii/S0196890417304661 by Y Zhu - 2017 May 21, 2017 - This paper proposes a scalable linear Fresnel reflector (SLFR) solar system. The optical mirror field which contains an array of linear plat ... Compact linear Fresnel reflector - Wikipedia https://en.wikipedia.org/wiki/Compact_linear_Fresnel_reflector A compact linear Fresnel reflector (CLFR) – also referred to as a concentrating linear Fresnel ... The reflectors are located at the base of the system and converge the sun's rays into the absorber. A key component .... AREVA Solar (Ausra) also built and operates a linear fresnel reflector plant in New South Wales, Australia. Images for linear Fresnel reflector as a solar system Image result for linear Fresnel reflector as a solar system Image result for linear Fresnel reflector as a solar system Image result for linear Fresnel reflector as a solar system Image result for linear Fresnel reflector as a solar system Image result for linear Fresnel reflector as a solar system More images for linear Fresnel reflector as a solar system Report images [PDF]Linear Fresnel Reflector - MNRE mnre.gov.in/file-manager/UserFiles/CST-Manuals/LFR_E.pdf Linear Fresnel Reflector based Solar System. Operations & Maintenance Manual. lR;eso t;rs. MNRE. November, 2014. UNDP-GEF Project on Concentrated ... Linear Concentrator System Basics for Concentrating Solar Power ... https://energy.gov/eere/.../linear-concentrator-system-basics-concentrating-solar-powe... Aug 20, 2013 - A second linear concentrator technology is the linear Fresnel reflector system. Flat or slightly curved mirrors mounted on trackers on the ground ... [PDF]Design and Analysis of Rooftop Linear Fresnel Reflector Solar ... www.redrok.com/LfrIjeit.pdf by K Gouthamraj - Cited by 3 - Related articles In this paper efforts are being made to design a rooftop linear Fresnel reflector solar concentrator (LFRSC) system. This paper discusses the design of a rooftop ...
