PDF Publication Title:
Text from PDF Page: 001
(ENRIC2014) The 1st Environment and Natural Resources International Conference 6 – 7 November, 2014, The Sukosol hotel, Bangkok, Thailand Comparative Performance of a Solar Concentrating Linear Fresnel Reflector for Electricity Generation in Nigeria and in Thailand Ahiwe Chinwendu Francisa*, Supachart Chungpaibulpatanab a,b)Department of Manufacturing Systems and Mechanical Engineering, Sirindhorn International Institute of Technology, Thammasat University, P.O.Box 22, Pathum Thani 12121, Thailand Abstract This paper comparatively studies the performance of the solar concentrating linear Fresnel reflector (LFR) technology for electricity generation in two different locations. Bangkok (Thailand) at latitude and longitude and Abuja (Nigeria) at latitude and longitude were chosen for this study. A one year daily average clear sky direct normal radiation was obtained from the NASA surface and meteorological energy website. Total hourly beam radiation was estimated from the daily data using a formulated model. Mathematical models were formed for the LFR system and for an organic Rankine cycle (ORC) for electricity generation. An hourly simulation performance study of the system at each location was carried out and the results compared. The linear reflectors were assumed to track the sun in an east-west movement and reflecting specularly. The results of the simulation show a surprisingly close performance in both regions with a maximum average system efficiency of 5% in Abuja and 4.7% in Bangkok. Using the current value of money, the current cost rate of electricity and an assumed system life span of 20 years, the resulting levelized cost of electricity from the system in Abuja is $ 0.286 /kWh and in Bangkok $ 0.289 /kWh. Keywords: Linear Fresnel Reflector/ Hourly beam radiation/ Organic Rankine cycle 1. Introduction One of the most widely accepted definitions of sustainable development is: “development that meets the needs of the present without compromising the ability of future generations to meet their own needs” [1]. In the sustainability of a greener energy environment, renewable energy systems are widely developed as alternative sources for power generation. There are many technologies that can help to achieve sustainable development and they have been an impending technology break-through to substitute for the use of fossil fuel for energy generation. Concentrating solar power systems (CSPs) have shown a great potential in achieving a sustainable environment compared to other renewable technologies. Currently there are many CSP plants installed around the world and a lot of research and development have been done to improve the performance of the linear Fresnel reflector. Singh et al [6] studied the performance of the linear Fresnel concentrating solar device with various combinations of mirrors and stated that the LFR may be used for medium temperature heat applications. Grena et al [7] carried out a simulation using molten salt as the heat transfer fluid in the linear Fresnel reflector with secondary reflectors, it was found that the efficiency of a molten salt Fresnel system was 15% lower than the efficiency of a traditional trough system with the same active area but there was a significant reduction of the cost, hence the technology could maintain a significant competition with the trough. Presently, a Fresnel system has been integrated with the Liddell coal plant in Australia; it uses slightly bent mirrors and no secondary concentrator [7]. A prototype of the linear Fresnel reflector has been designed by the ------------------------------------------------------------------- *Corresponding Author: E-mail address: ahiwec@yahoo.com Solarmundo Company with a secondary reflector that serves also as a wind protection to reduce convective losses [8]. The report of the project showed that the linear Fresnel collector had significant advantages over trough collectors. According to Solarmundo, these advantages lead to a cost reduction of about 50% for the solar field compared to parabolic trough. Cost reduction due to economy of scale and due to an optimal design of the collector will further reduce the investment costs for the solar field. In addition to the cost reduction in the solar field, there are considerable savings offered by lower operation and maintenance costs [8]. One of the promising technologies for converting low grade heat into electricity is the organic Rankine cycle (ORC) [10]. This technology has been proved to be an attractive solution for low-medium temperature solar thermal systems. The objective of this paper is to comparatively study the performance of the solar concentrating LFR system for electricity generation in Nigeria and in Thailand. The aim of this comparison will help shed more light of incorporating the solar concentrating LFR for more medium grade heat application in tropical regions with average amount of direct solar radiation. Comparative climatic conditions The amount of rain fall, air temperature, hours of sunshine, humidity and cloudiness determine the potentials for solar systems. Nigeria located west of Africa experiences a tropical rainforest climate with variable rainy and dry season, depending on the region. The amount of rain fall decreases from south to north with an average yearly rainfall of about 150 mm in the capital. 36PDF Image | Comparative Performance of a Solar Concentrating Linear Fresnel Reflector for Electricity Generation in Nigeria and in Thailand
PDF Search Title:
Comparative Performance of a Solar Concentrating Linear Fresnel Reflector for Electricity Generation in Nigeria and in ThailandOriginal File Name Searched:
1_33.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |