SOLAR WATER DISTILLATION BY USING COMPOUND PARABOLIC COLLECTOR(CPC)
India is currently importing 100 million tons of crude oil. Foreign exchange outflow of Rs.1.5 trillion per year (nearly $34 billion ). At this rate, in 2030 the country may have to import 300 million tons of crude oil. Current India’s Energy Crisis
Renewable sources of energy are gaining importance as traditional sources are depleting fastly. Solar energy has the potential to meet a part of energy requirement, because SOLAR radiation is available throughout the year. For efficient energy requirement through solar, we use Concentrating collector. INTRODUCTION
Sunlight on the surface of earth is the radiation received from sun. India has adequate sunshine available for most parts of the year, including rural areas. The amount of solar energy impacting the surface of earth is 1000 watts per square meter, which is about 32.8 million MW every second on the Indian land mass. Scope for development of solar technology
Thermal Program : 600,000 solar cookers have been produced. 2000 concentrating dish cookers 12 community village cookers and 1.5 million sq m of collector area for water heating systems have been achieved . Photovoltaic Program: 55000 street lighting systems 340,000 home lighting systems 1566 kW of power plants 540,000 solar lanterns have been produced Current status of solar energy
CONCENTRATING SOLAR POWER A clean, large-scale solar thermal technology known as concentrating solar power is used in special power plants (Concentrating Solar Power or CSP plants) that use different kinds of mirror configurations to convert the sun's energy into high-temperature heat. The heat energy is then used to generate electricity in a steam generator.
Parabolic trough system Parabolic dish Power tower Compound parabolic collector. Types of concentrating collectors
Solar radiation are concentrated on tube with the help of parabolic trough. Temperatures can be achieved nearly about 400°C In California, multi-megawatt electric energy are generated. Parabolic trough system
Parabolic dish
A heliostat are use for sun tracker. Solar radiation receviver are located on high towar Temperatures can be reached near about 1000°C Power tower
Compound Parabolic Concentrato r (CPC) is a special type of solar collector fabricated in the shape of two meeting parabolas. It belongs to the non-imaging family, but is consider among the collector having the highest possible concentrating ratio. Also because of its large aperture area, only intermittent tracking is required. Compound Parabolic Collector
Geometry of CPC
Aperture Area = W* L Absorber Area = b * L Concentration Ratio C = W* L / b * L Acceptance angle=angle between two extrem rays Basic terms
India sanctioned the world's largest 750MW solar power plant in Rewa district of Madhya Pradesh, which will pip America's much-vaunted 550-megawatt Desert Sunlight solar project in California. AREVA has launched the construction of the first of two 125MWe solar thermal power plants in Dhursar , Rajasthan. After completion of project i ndia will lead in Asia. Ongoing Solar power projects:
Year 2013-2014 1 Lender’s engineer for KEVPL’s solar thermal power project in Rajasthan - 100 MW Power Finance Corporation Ltd, New Delhi (India) 2 Preparation of Detailed Project Report to establish 50 MW Solar PV power Project at Umm-al- Quwain , UAE Deccan Water Treatment Pvt. Ltd. Pune (India) 3 Lender’s engineer for Responsive (SUTIP) Pvt. Ltd. solar PV power project in Gujarat - 25 MW Power Finance Corporation Ltd, New Delhi (India) 4 Technical validation of bid document of 1 MW solar PV project at Erode, Tamil Nadu (India) Metropolitan Equipments & Consultants Pvt. Ltd. Mumbai (India) 5 Detailed Project Report Preparation for setting up of 2.5 MW Grid-Connected Polycrystalline Based SPV Power Project in Village Banthu, Block Bhagwanpur, District Vaishali, Bihar SABR Controls Pvt. Ltd. Mumbai (India)
Acme tele power =Rajasthan =15mw Adani power =Gujarat =100mw Adora = MP = 20mw AEG power =Gujarat =50mw Godawari and ISPAT =Rajasthan =50mw MH state power generation=MH =250mw Current solar power contribution:
Half acceptance angle =11.54 º (assumed) C=1/ =4.99 =5 C= w/b Aperture width = 100 cm (calculated) Absorber width = 20 cm (selected) Total Height = 294 cm Length of the collector=120 cm(market) After 2/3 Truncation of full height, Aperture width =86 cm Truncated height = 98 cm C = aperture area/absorber area C=4.33 Demension for our project
Mounting East – West Acceptance angle 11.54˚ Reflecting surface Glass mirror strips (each strip 20mm × 1200mm × 4mm thick) Curve length 1050 mm Set-up Features:
Water condensed without black coating without CPC
Water condensed with black coating without CPC
Water condensed without black coating with CPC
Water condensed with black coating with CPC
Water condensed is greater in solar CPC with black coating as compared with simple absorber with black coating. Water condensed depends on insolation radiation. CONCLUSIONS: