This allows to use inexpensive HTFs (e.g., Caloria) and combine it with a two-tank thermal energy storage system. The study takes into consideration the available solar potential, A solar parabolic trough is described as a long, trough-shaped re- different designs of solar parabolic trough, as well as all available flector that has a parabolic cross-section with a slope affected by the analyses for different parts of the system. Aperture area of the collector (A) =0.9272 m2 Q i = I x A, W = 690 x 0.9272 = 640 W r a a f a f 2 sin The typical solar beam radiation data of three cities with different latitudes are used for calculating the daily … The following modelling equations are generic, and can be modified to specific Flat Plate or Parabolic collector set up. PARABOLIC TROUGH SOLAR CONCENTRATOR - SlideShare parabolic trough collector The primary goals of this study were to determine an appropriate numerical method to solve the intercept factors and errors for different secondary mirror types and to incorporate the selected intercept factor calculation into a secondary mirror design for a parabolic trough solar collector under various conditions. I am going to design a parabolic solar thermal collector and I need to calculate the energy produced by the parabolic solar collector during the day with respect to … Design and analysis of solar parabolic trough collector Since the sunshine duration of Manisa region is 2840 h per year, a natural gas sourced auxiliary system is considered to generate power for the remaining 4360 h, excluding thermal energy storage. A parabolic dish does have reflectors like mirrors and has an absorber at its focal point. Parabolic solar collectors are designed for a receiver ab sorber aligned with the focal line of the parabola. Parabolic trough collectors are another type of solar thermal collector.This type of solar panel is used in solar thermal energy installations. Heat Transfer Analysis and Modeling of a Parabolic Trough ... After conducting more research on solar energy and solar collection, the decision was made to attempt to build a parabolic trough solar concentrator. 2.4 Concentration with a Parabolic Reflector | EME 812 ... Experimental and Theoretical Study of a Parabolic Trough ... This paper presents a new method in controlling a parabolic trough solar collector system to improve the efficiency of the solar-to-thermal energy. It is formed in a way that the centre of gravity of the upper construction remains on the same horizontal level while the trough is tracked. of parabolic trough solar collectors That research aims to simulate a parabolic trough collector. The most widely deployed CSP technology uses parabolic trough collectors. The slope angle of the parabolic trough should be equal to the latitude value of the particular location. The application of parabolic trough collector (PTC) technology is a clean and new way to produce industrial process heat. The experimental evaluation of the efficiency of first law in a PTC as the solar angle of incidence changes around the noon is presented in this paper. A brief introduction on the PTC operating conditions is included. 1 Environmental Energy Technologies Laboratory (EETL), University of Yaounde I, Yaounde, Cameroon. The advantage of such a system is that solar energy is used to heat the water in a steam-Rankine cycle device up to the superheat regime, thus displacing the fossil fuel usually required. Though, there still exist radiation and convection losses. Solar Resource Data 101 . The trough shape of the collector allows it to capture a larger area of the sun’s radiation than a flat panel. This study focuses on the calculation of conduction and convection heat losses from the proposed receiver using numerical modeling. The discussed collector is part of a solar adsorption refrigerator, and is used to regenerate the activated carbon contained inside a cylindrical recipient (absorber), which is located in the focal line of a parabolic trough concentrator. Concentrating solar power (CSP) technologies capture the heat of the sun to drive a thermo-electric power cycle. 2. The present work first introduces calculation methods of direct solar radiation on the Earth’s surface and the grazing angle θi of parabolic trough concentrating collectors under different tracking modes. Whether you're improving the signal strength of your wifi antenna, or designing a satellite antenna or solar trough, this program calculates the focal length and (x, y) coordinates for a parabola of any diameter and depth. Manuel Pérez García. A multitude of the researches focus on the factors of the thermal efficiency of a parabolic trough solar collector, that is, the optical-thermal efficiency. Iran is one of the potential countries that use parabolic trough power plant system. Parabolic troughs, which are a type of linear concentrator, are the most mature CSP technology with over 500 megawatts (MW) operating worldwide. They use parabolic cylinders to concentrate all the solar radiation at one point.. It uses the mirror-like reflectors or lenses. ORCs can work at lower temperatures, so the operating temperature of the parabolic trough can be reduced from about 400 to 300 °C. All heat transfer and thermodynamic equations, optical properties, and parameters used in the model are discussed. A parabolic trough solar collector you can build Taking climatic performance … Parabolic trough calculator. Figure 3 illustrates the captured solar energy by the collector, as presented in SolTrace. Errors in longitude and/or latitude of the site below 10 km do not provoke a significant positioning error, if the parabolic trough collectors are correctly aligned. This collector builds on the excellent success of prior generation utility-scale parabolic trough designs, but incorporates several engineering and material innovations, listed below. parabolic collector dimensions description dimensions (m) width aperture of ptc 0.50 length of parabola 59.8 parabola focal distance 0.112 radius of the parabola 0.25 theoretical diameter of the receptor 0.0023 ptc length 0.95 ptc width 0.58 finally, using eq. The PTSC, installed at CMU, is from BROAD The parabolic trough solar collector uses aluminum foil sheet in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a absorber tube located at the focus line of the parabolic cylinder. The mirror is oriented so that sunlight is concentrated on the tube, which contains a fluid which is heated to a high temperature by the; Question: A parabolic trough collector system provides hot water supply to a gym studio. The site can be a bit of a challenge to find stuff on, but its worth the effort. Parabolic Trough, TRNSYS, Simulation, Rankine Cycle, Solar Irradiance, Parabolic trough collector is the most proven technology to convert solar energy into electricity. That is a concentrating solar collector that works by reflecting and focusing the solar energy. Parabolic Trough Solar System Piping Model Final Report NREL Contract No. Different ways to couple a parabolic-trough solar field with an … It represents the optimal resolution regarding the attainable concentration ratio and the attainable energy production per aperture area in line-focusing solar collectors. AAA-2-32432-01 - 1 - September 15, 2002 A. A complete schematic diagram for the parabolic trough collector with heat exchanger (HE) will be found in … This solar energy can be used to do work such as to heat water to higher temperatures of 212°F (100° C), killing all bacteria in the water making the water safe to drink. 10.2. The main components of parabolic trough collector are curve mirror and receiver system. The fluid used is water and a In molten-salt parabolic trough plants, the melting process is particularly important for freeze recovery of salt that is solidified in a collector loop, should such an event occur. Abstract: In this paper, the heat collection efficiency of the parabolic trough solar collector (PTC) with arbitrary orientation and tilt angle is analyzed, the formulae for calculating collection efficiency are given and relevant calculations and discussion are made. Inhouse model is developed using the MATLAB tool for the analysis. Charge-coupled device (CCD) was used for testing gray image on the surface of the receiver for parabolic trough solar concentrator. It represents the optimal resolution regarding the attainable concentration ratio and the attainable energy production per aperture area in line-focusing solar collectors. 3. The fluid used is water and a Manuscript Generator Sentences Filter 1. The geometry and dimensions of PTC assembly significantly affect the thermal and optical performance of solar field. Energy Balance of Solar Collector Radiant energy from de Sun is focused by the PTC surface on an absorber pipe and this is transmitted to thermal * Corresponding author. Design of solar fields with parabolic-trough collectors 6. Parabolic Trough. Since the sunshine duration of Manisa region is 2840 h per year, a natural gas sourced auxiliary system is considered to generate power for the remaining 4360 h, excluding thermal energy storage. experiments were performed on a locally fabricated parabolic trough collector composed of mirror collector, solar energy absorption system, steam-brine separation vessel, heat exchanger, electrical panel, and sun tracking device. Parabolic trough technology is the most widespread among utility-scale solar thermal plants. Calculations are performed using a uniform mesh containing 100 nodes, iterative Gauss method was used and the program was written in Matlab. poured in concrete, could be avoided. —————————— —————————— 1.0 INTRODUCTION 1.1 Background of the study . Keywords: solar collector; parabolic through, demonstrative prototype. Optical, thermal and geometrical losses in a parabolic-trough collector 4. The potential of this type of concentrating collectors is very high and can provide output fluid temperatures in the range up to 500°C. A study of the trough thermal analysis is necessary to evaluate the performance of a PTC. The SHCS, indicated in Figure 1, mainly consists of 52.44 m2 single-axis parabolic trough solar collectors (PTSC), a 16k. The theoretical useful energy from parabolic trough solar collector calculated by equation writing as [5]: (15) amb A r,ext=πD r,ext L(15a) (15b) The fundamental characteristics of the performance of a parabolic trough solar collector are its concentration ratio and its optical efficiency. However, it is limited to a single or double factors for available system. A parabolic trough is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, with a polished metal mirror . Both are shown schematically in Figure 1. solar, directly in absorption refrigerant cycle with control of the temperature and humidity of the fresh air supply for the building. Key words: Parabolic-trough Collector, Energy, solar coordinates, thermal efficiency, meteorological and radiative. The solar field is modular in nature and is composed of many parallel rows of solar collectors aligned on a north-south horizontal axis. Energy Balance of Solar Collector Two-Dimension Numerical Simulation of Parabolic Trough Solar Collector: Far North Region of Cameroon() Charlain-Joel Ngangoum Keou 1*, Donatien Njomo 1, Vincent Sambou 2, A. R. Andrianaharinjaka Finiavana 3, Ahmadou Diaby Tidiane 2,4. 5 [3], a concentration ratio of 67.17 was obtained for the ptc; this means that the ptc … The parabolic trough solar energy collector is selected mainly due to its ability to function at high temperatures with high efficiency. The W. 1.2 Parabolic Trough Solar Collector . Abstract. Type of reflective surface: redressed elasticity unredressed elasticity molded exact parabole. The receiver absorbs the incoming … This work presents an algorithm able to simulate the heating of a solar collector throughout the day. The radiant flux density on the surface of the receiver for parabolic trough solar concentrator was obtained by numerical calculation with the established models. Typical performance calculations show that when hot-water at 165C flows through a 6m by 2.3m PTSC with 900 w/m^2 solar insulation and 0 incident angle, the estimated collector efficiency is about 55% The model predictions will be confirmed by the operation of PTSCs now being installed at Carnegie Mellon. A prototype of a module of parabolic trough collector is made based on ease of transportation, manufacturing and maintenance and usage. parabolic trough designs—the SkyTrough and the Ultimate Trough. A parabolic trough collector power cycle cannot provide uninterrupted power all day because it works with solar energy. The parabolic trough solar collector is one of the most efficient and it has been studied widely. The developed simulation program calculates the outlet fluid temperature and shows the efficiency of the proposed parabolic trough collector as a function of the outlet temperature, the pipe diameter, the intensity of the incoming solar radiation and … ABSTRACT: This paper presents the development of energy equations for computation of the efficiency of Parabolic-Trough Collector (PTC) using solar coordinates. Parabolic trough solar collectors are the most common type of solar thermal collectors as they offer a ton of benefits. As of 2020, of the 6,128 megawatts (MW) of installed CSP capacity, greater than 4,000 MW of operational parabolic trough CSP are present 1,2. The parabolic trough-type collectors and new bracket system were accounted for the research object; static load and structural optimization were analyzed by ANSYS, and selected the best section size of the bracket with meet the strength and stiffness requirements. About This Program This Freeware program was written to help you design solar collector or wifi projects using parabolic reflectors. In 1907, the Germans Wilhelm Meier and Adolf Remshardt obtained the first patent of parabolic trough technology. The potential of this type of concentrating collectors is very high and can provide output fluid temperatures in the range up to 500°C. Fig: 1.3: Diagrams of the four CSP Systems (Power Tower, Dish, Trough and Fresnel), [14] 1.2 Parabolic Trough Solar collectors (PTC’S) PTC’s are the most matured, low-cost and most efficient source of energy of the CSP technology. The main components of parabolic trough collector are parabolic shaped reflector, receiver, support structures, sun tracking mechanism and transport mechanism for the heat transfer fluid. II. INTRODUCTION. Each solar collector has a linear parabolic-shaped reflector that focuses the sun’s direct beam radiation The parabolic trough solar collector uses aluminum foil sheet in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a absorber tube located at the focus line of the parabolic cylinder. SYSTEM DESCRIPTION Solar thermal power plants are systems for power and electricity generation by employing solar radiation as a thermal source. Title: Modeling and experimental investigation of parabolic trough solar collector Institution: Embry-Riddle Aeronautical University Degree: Master of Science in Mechanical Engineering Year: 2014 In this thesis, a mathematical model is applied to study the performance of a parabolic trough solar collector (PTSC). The collector is insulated on the back to keep the heat transfer losses down. The design of the parabolic reflector takes into account the available aperture size (a), focus location (f - i.e., where receiver would be placed), and height of the reflector (h). The collector field consists of a large field of single-axis tracking parabolic trough solar collectors . Direct absorption solar collector is a new technique used recently in harvesting solar energy. 3: Schematic of the Parabolic Trough, Flat Plate (Central Receiver), and Parabolic Dish solar concentrators [3]. version of the solar coordinates calculation algorithm was checked against the Multiyear Interactive Computer Almanac (MICA), a software product of the United States Naval Observatory. needed bulk solar energy [2]. The fluid running through the tube is embraced with a … The C value of 20 to 100 can be achieved b y a li near concentrator such as parabolic trough . To determine the empirical correlation for both free and forced convection. o. April 16, 2014: Paul Gilman • Modeling Parabolic Trough Systems . The collector, which is intended for use in a solar tracking mode, has a geometry that facilitates fabrication and is insensitive to manufacturing imperfections. Furthermore, lower operating temperatures result in lower capital cost for the solar components. The receiver absorbs the incoming … An absorber is considered misaligned if, at any point along its length, the cen ter of the absorber deviates from the focal line of the parabolic trough. a parabolic trough is, the lower is its performance, although smaller parabolic troughs are much more useful than bigger ones. Today, solar energy can play a vital role in the world. Parametric Study of Solar Parabolic Trough Collector System. 1.1 Working of Parabolic Trough Collector Since parabolic trough have highly reflective material such as aluminum or mirrors, all the sun rays get reflected and concentrated at the focus of parabolic trough collector. Parabolic Trough Collector Systems. 1. Parabolic trough. The following modelling equations are generic, and can be modified to specific Flat Plate or Parabolic collector set up. A prototype of a module of parabolic trough collector is made based on ease of transportation, manufacturing and maintenance and usage. Aperture width of the parabolic trough collector . He used it to power a hot air engine. Specular reflectivity of the concentrator surface, ρ 0.94 Instead of heliostats, parabolic solar collectors use rows of parabolic cylinder-shaped mirrors. A parabolic trough is a type of solar thermal collector. Efficiency The parabolic solar trough operates at about 75% efficiency, and at 495 square foot can collect approximately 270 kWh / 10 hours on a clear day. Full PDF Package Download Full PDF Package. This theses is concerned with an experimental study of a parabolic trough collector with its sun tracking system designed and manufactured utilizing the existing Gaza technologies and available local materials. The model determines the performance of a parabolic trough solar collector’s linear receiver, also called a heat collector element (HCE). The CALCULATION 4.1 Heat Input The heat input to the parabolic trough solar collector can be calculated by considering the solar radiation flux (I) on the aperture area of the collector (A) . Energy flow and thermal energy delivered by a parabolic-trough collector 5. A lower-cost alternative is proposed to use controllable concentrated … Parabolic Trough Solar collector are shown in Figure-4. These parameters are interrelated via the equation (Stine and Harrigan, 1986): (2.6) Figure 2.8. Today, the Parabolic-trough solar collectors and their applications. See Ref 2. for further details. A pipe passes through the parabola's focus that … Two solar collector elements (SCE) are connected to one drive unit (FIGURE 1). o. June 18, 2014: Michael Wagner • Photovoltaic Shading Analysis . So these three steps are interlinked and simultaneously completed. to facilitate rapid diffusion and widespread use of solar energy, the systems should also be easy to install, operate and maintain. Using solar parabolic trough collector to analyze the performance of different heat pipes rather than considering the supply of electric power input. This study suggests a theoretical performance study of an existing solar Parabolic Trough Collector (PTC). The current study presents a numerical and real-time performance analysis of a parabolic trough collector (PTC) system designed for solar air-conditioning applications. The purpose was the generation of steam.6 experiments were performed on a locally fabricated parabolic trough collector composed of mirror collector, solar energy absorption system, steam-brine separation vessel, heat exchanger, electrical panel, and sun tracking device. The SkyTrough analysis estimated the potential installed cost for the solar field at $170/m2. 10.2. DESIGN CALCULATION DATA OF PARABOLIC TROUGH Date April 15 =40.1 ̊C and December 15= 27.8 ̊C The data in table 2 are used and calculated with the following equations for design calculation of parabolic trough. The shape of a parabolic trough is dependent on four primary parameters: rim angle, focal length, aperture width, and trough depth, which … Download Download PDF. Geometry of designed parabolic trough. The assumed solar field area in both cases was about 1.1 million square meters—the equivalent of a large CSP plant. These results can be extrapolated to a larger model with a comparable concentration ratio, if necessary. Parabolic trough power plants are the only types of solar thermal power plant technology with existing commercial operating systems. problem description In this article, the flux distribution of parabolic trough solar collector (PTSC) is performed by considering limb darkening effect in the incoming solar radiation. An analysis has been made to the potential for using a parabolic trough solar collector system for preheat and boiling in a power generation cycle. The collector is insulated on the back to keep the heat transfer losses down. DOE funds solar research and development (R&D) in parabolic trough systems as one of four concentrating solar power (CSP) technologies aiming to meet the goals of the SunShot Initiative. The present invention relates to an improved parabolic trough concentrating solar collector whose optical design is optimized to maximize the concentration ratio and collection efficiency. A Crank-Nicolson scheme with nt=1s was adopted for the time step. Solar Parabolic in a Sentence Manuscript Generator Search Engine. These graphs enable the designer of parabolic trough collectors to calculate the performance and optimize the design with a simple hand calculator. A short summary of this … Initially, a thermodynamic model of PTC is developed using engineering equation solver (EES) having a capacity of around 3 kW. We tried to show the importance and effectiveness of parabolic trough collector in the field of solar concentrate. Parabolic Trough Collector (con) A trough captures sunlight over a large aperture area and concentrates this energy onto a much small receiver area, multiplying the intensity of the sun by a concentration ratio in the range of 10-80. The performance of the parabolic trough collector is studied under various conditions and the data is under various analysed different absorber tube designs and flow rate of the fluid. The energy of sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line , where the objects are intended to be heated. The method is illustrated by specific examples that are typical of practical applications. The SkyTrough™ is a new high-efficiency parabolic trough solar collector that has been designed with features to reduce capital cost, shorten installation time, and reduce O&M cost. Figure 3. The model determines the performance of a parabolic trough solar collector’s linear receiver, also called a heat collector element. All heat transfer and thermodynamic equations, optical properties, and parameters used in the model are discussed. Introduction One requirement in a conceptual design of a solar power plant is to estimate the cost of In this study, non-circulated Nano-Fluid (N-F) is used to absorb the solar radiation through a glass wall in parabolic solar collector closed system. Parabolic Trough, TRNSYS, Simulation, Rankine Cycle, Solar Irradiance, Parabolic trough collector is the most proven technology to convert solar energy into electricity. Duane's RedRok site is information central for DIY Heliostats and concentrating solar collectors. Currently there are two distinct versions (pvlib-python and PVILB for Matlab) that differ in both structure and content. 2 History of parabolic trough power plant technology John Ericsson constructed in 1880 the first known parabolic trough collector. Figure-4. needed bulk solar energy [2]. Parabolic trough technology is the most widespread among utility-scale solar thermal plants. So, to gain the optimum flux extraction The parabolic trough should be due South facing. Renewable & Sustainable Energy Reviews, 2010. Currently impedance heating is expected for freeze recovery of the collector loops, but this method can be expensive. Though, there still exist radiation and convection losses. In a parabola all of the incoming rays from a light source (in this case the sun) are reflected back to the focal point of the parabola. To enhance the heat transfer in a parabolic trough solar collector by using ZnO/water as nanofluid with different volumetric concentrations and flow rates, in free and forced convection system. parabolic dish and parabolic trough solar concentrators [27]. A parabolic trough collector power cycle cannot provide uninterrupted power all day because it works with solar energy. A parabolic trough is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, with a polished metal mirror . o. February 12, 2014: Janine Freeman • Analysis of Electricity Rate Structures for Residential and Commercial Projects . The trough contractor The solar parabolic trough collector systems receive heat from solar Currently, there are four main technologies that utilize the con- radiation of the sun. CSP is used directly in some applications as solar centrated solar thermal energy: (a) parabolic trough systems, (b) solar cooker or water pumping. Parabolic Trough Collector Systems. PTSCs comprise reflective sheets having a parabolic structure, where a metal tube is placed within the center of the receiver, in part, receiving the parallel rays that are focused on the reflector. In order … The results show that the original bracket structure almost meet the strength and stiffness requirements under normal … Fig. 2.1. See Ref 2. for further details. In the following the plant is divided into two subsystems: the solar collector field and the power plant. Parabolic- trough collectors ( ) are frequently employed for solar steam- generation because temperatures of … the true solar noon, which can reach 585 (W/m²), despite the bad weather on this day, the amount of solar radiation was considered. It is designing an intelligent preprocessor using Hedge Algebra algorithm to calculate the setpoint for the control loop, in which besides the information about the trajectory calculated by a software, wind speed and fluid … Parabolic trough power plants are the only types of solar thermal power plant technology with existing commercial operating systems. Parabolic- trough collectors are frequently employed for solar steam-generation because temperatures of about 300 can be obtained without any serious degradation in the collector’s efficiency. The performance of the parabolic trough collector is studied under various conditions and the data is under various analysed different absorber tube designs and flow rate of the fluid. The Parabolic trough solar collector unsteady equations are discretized and solved by the finite volume method. The obtained optical efficiency fitting formula of parabolic trough solar collectors is then applied successfully to efficiently study the characteristics of long-time average optical efficiencies under different geometrical configurations, geographical locations, tracking models and corresponding optical or geometrical optimizations. The energy of sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line , where the objects are intended to be heated. The aim of this paper is to investigate the multifactors effect on the system’s efficiency in cold climate region. A tiny methodology was built and evaluated in the Ansys workbench to decrease the calculation time in reducing the computational costs. The parabola rolls along a sickle-shaped hill. Design calculation results show in table 3. 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