Sahara Potential and Sustainable Development of Algeria: A Thermal Experimental Study of Parabolic Trough Solar Concentrator with New Perspectives of Solar Energy

2018 ◽  
pp. 143-154
Author(s):  
Lahlour Rafik ◽  
Bellel Nadir ◽  
Bouguetaia Nadia
Keyword(s):  
Experimental Study ◽  
Sustainable Development ◽  
Solar Energy ◽  
Solar Concentrator ◽  
Parabolic Trough

Experimental Study on Thermal Efficiency of Parabolic Trough Collector (PTC) Using Al2O3/H2O Nanofluid

2015 ◽  
Vol 787 ◽  
pp. 192-196
Author(s):  
E. Siva Reddy ◽  
R. Meenakshi Reddy ◽  
K. Krishna Reddy
Keyword(s):  
Experimental Study ◽  
Solar Energy ◽  
Thermal Efficiency ◽  
Base Fluid ◽  
Concentration Ratio ◽  
Volume Fraction ◽  
Nano Particles ◽  
Parabolic Trough ◽  
Flow Rates ◽  
Parabolic Trough Collector

Dispersing small amounts of solid nano particles into base-fluid has a significant impact on the thermo-physical properties of the base-fluid. These properties are utilized for effective capture and transportation of solar energy. This paper attempts key idea for harvesting solar energy by using alumina nanofluid in concentrating parabolic trough collectors. An experimental study is carried out to investigate the performance of a parabolic trough collector using Al2O3-H2O based nanofluid. Results clearly indicate that at same ambient, inlet temperatures, flow rate, concentration ratio etc. hike in thermal efficiency is around 5-10 % compared to the conventional Parabolic Trough Collector (PTC). Further, the effect of various parameters such as concentration ratio, receiver length, fluid velocity, volume fraction of nano particles has been studied. The different flow rates employed in the experiment are 2 ml/s, 4 ml/s and 6 ml/s. Volumetric concentration of 0.02%, 0.04% and 0.06% has been studied in the experiment. Surfactants are not introduced to avoid bubble formation. Tracking mode of parabolic trough collector is manual. Results also reveal that Al2O3-H2O based nanofluid has higher efficiency at higher flow rates.

scholarly journals Design of automation control thermal system integrated with parabolic trough collector based solar plant

2021 ◽  
pp. 218-218
Author(s):  
Anbuchezhian Nattappan ◽  
Suganya Priyadharshini Ganesan ◽  
Velmurugan Thiagarajan ◽  
Krishnamoorthy Ranganathan
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Solar Thermal ◽  
Thermal System ◽  
Solar Concentrator ◽  
Parabolic Trough ◽  
Parabolic Trough Collector ◽  
Automation Control ◽  
Solar Thermal System ◽  
Noisy Condition

This paper presents enhanced design for Automation control of processes involved in a solar system which utilizes programmable logic controller to automate tracking system for obtaining maximum solar radiation. Three areas are involved in this proposed multi area system where first and second area considers solar power plant with thermal system based parabolic trough collector with fixed solar isolation and random isolation of solar energy whereas third area comprises of solar thermal system with dish Stirling realistic unit. Energy efficiency can be increased by using solar concentrator along with Stirling engine. Optimization of gain of the controller is by utilizing crow search novel algorithm. Crow search algorithm is an optimization technique, which provides better performance at complex time varying noisy condition and time in-varying noisy condition. The Proposed controller is evaluated by obtaining the optimized parameters of the system whose comparison is done by operating proposed controller with & without renewable sources of energy thereby revealing better performance for both conditions. Testing is done in different areas with fixed solar isolation and random stisolation of solar energy involved in solar thermal power plant based on parabolic trough collector. Gain and parameters of the controller of the solar power plant are optimized by utilizing automation for operation of solar concentrator with parabolic Trough collector. Data acquisition and monitoring is done by human machine interface (HMI) in order to report safe operation. The Simulation results of integrated solar thermal system involving dish Stirling with parabolic trough collector, shows that dynamic response of the proposed controller operating with renewable solar energy is better than that of non-renewable energy source.

scholarly journals EXPERIMENTAL STUDY OF STEAM GENERATION BY PARABOLIC TROUGH CONCENTRATOR WITH TWO AXES TRACKING

2021 ◽  
Vol 25 (Special) ◽  
pp. 2-15-2-24
Author(s):  
Yasameen S. Raheema ◽  
◽  
Bashar O. Bedaiwi ◽  
Keyword(s):  
Experimental Study ◽  
Flow Rate ◽  
Thermal Performance ◽  
System Performance ◽  
Solar Collector ◽  
Solar Concentrator ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Parabolic Trough Solar Collector ◽  
Practical Investigation

This paper describes an experimental model for estimating parabolic trough solar collector performance, as the Arduino micro-controller technology was applied to improve the optical and thermal efficiency of the system. The receiving tubes of different internal diameters (2mm, 6mm) were implemented to evaluate system performance. The practical investigation of the solar concentrator was conducted to generate steam at moderate temperatures, as the experiments were executed in Baghdad with geographical coordinates (33° 18' N, 44° 21' E) during specific days. The results showed the effectiveness of small diameters, as the significant enhancement of thermal performance was at a flow rate of 8 L/h and receiver tube diameters of 2 mm, as the improvement was 30% compared to 6 mm tubes.

Using Parabolic Trough Concentrators With Tracking System for Heating Residential Water

2014 ◽  
Author(s):  
Mohamad Ramadan ◽  
Mahmoud Khaled ◽  
Bakri Abdulhay ◽  
Mohamad Hammoud ◽  
Ali Shaito
Keyword(s):  
Experimental Study ◽  
Solar Energy ◽  
Tracking System ◽  
Weather Conditions ◽  
Parabolic Trough ◽  
Water Heating ◽  
Prototype Implementation ◽  
Solar Tracking ◽  
Residential Water

The present work concerns a prototype implementation and an experimental study of a new design of water heating using parabolic troughs equipped with solar tracking system. Combining the two techniques of parabolic troughs and solar tracking permits to enhance the water heating by solar energy. A prototype is implemented to test the proposed approach. An experimental study is carried-out to test the performance of the system as well as the effect of the weather conditions on the system. The effect of each technique is evaluated separately by performing experiments with and without solar tracking and with/without parabolic mirrors. It is shown that with a parabolic trough of 0.6 m2 area, water can be heated from 23 to 57 °C. Moreover, the temperature can reach 69 °C when the tracking system is activated.

Development of an Innovative Code for the Design of Different Parabolic Trough Solar Fields

2009 ◽  
Author(s):  
Ennio Macchi ◽  
Giampaolo Manzolini ◽  
Paolo Silva
Keyword(s):  
Solar Energy ◽  
Energy Demand ◽  
Working Fluid ◽  
Fluid Temperature ◽  
Parabolic Trough ◽  
High Solar Radiation ◽  
Power Block ◽  
The Usa ◽  
Solar Field ◽  
Steam Cycle

The role of renewable energies and in particular solar energy could be fundamental in future scenarios of worldwide increase of energy demand: thermodynamic solar energy can play an important role in country with high solar radiation. This paper discusses the development and testing of an innovative code for the prediction of thermodynamic performances at nominal conditions and the estimation of costs of the whole plant, for different parabolic trough solar fields. The code allows a preliminary design of the solar field lay-out, the sizing of the main components of the plant and the optimization of the steam cycle. The code, named PATTO (PArabolic Trough Thermodynamic Optimization), allows to separately calculate the thermal efficiency of (i) parabolic trough systems in commerce as well as (ii) combination of components of various commercial systems, in order to exploit different technology solutions: combination of mirrors, receivers and supports. Using the selected parabolic troughs, the plant configuration is then completed by connecting pipes, heat exchangers, the steam cycle, and storage tanks. The code is also flexible in terms of working fluid, temperature and pressure range. Regarding the power block, a conventional steam cycle with super-heater and re-heater sections and up to seven regenerative bleedings is adopted. It is possible to use also simpler configuration as without re-heater or with less regenerative bleedings. Moreover, thanks to simple or sophisticated economic correlations depending on available data, the code calculates the overall investment cost for the considered solar field and the power block. The code performs steady state analysis at nominal conditions, while future developments are planned regarding part load analysis and transient simulations. The model is tested towards real applications and reference values found in literature; in particular, focusing on SEGS VI plant in the USA. Detailed results showing code potentiality, are presented in terms of solar field and power block energy balances, plant auxiliaries, piping and economic analysis.

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