Abstracts Oral Presentations - Solar Food Processing Network

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International Solar Food Processing Conference 2009 The purpose of this paper is to present the developments and potentials of solar drying technologies for drying grains, fruits, vegetables, spices, medicinal plants, and fish in the tropics and subtropics and the performance of the solar driers for drying of fruits, vegetables, spices, medicinal plants and fish and also to present simulated performance of the solar tunnel dryer for drying of chilli and neural network prediction of the performance of the solar tunnel drier for drying of jackfruit and jackfruit leather, and address the applications of Computational Fluid Dynamics (CFD) in food industry. 3. Summary This paper presents developments and potentials of solar drying technologies for drying of fruits, vegetables, spices, medicinal plants and fish. Previous efforts on solar drying of fruits, vegetables, spices, medicinal plants and fish are critically examined. Recent developments of solar dryers such as solar tunnel dryer, improved version of solar dryer, roof-integrated solar dryer and greenhouse type solar dryer for fruits, vegetables, spices, medicinal plants and fish are also critically examined in terms of drying performance and product quality, and economics in the rural areas of the tropics and subtropics. Experimental performances of different types of solar dryers such as solar tunnel dryer, improved version of solar tunnel dryer, roof-integrated solar dryer and greenhouse type solar dryers which have demonstrated their potentialities for drying fruits, vegetables, spices, medicinal plants and fish in the tropics and subtropics are addressed. Simulated performances of solar tunnel dryer, improved version of solar tunnel dryer and roof-integrated solar dryers were assessed for drying fruits, vegetables, spices, medicinal plants and fish. The agreement between the simulated and experimental results was very good. The simulation models developed can be used to provide design data and also for optimal design of the dryer components. A multilayer neural network approach was used to predict the performance of the solar tunnel drier. Using solar drying data of jackfruit and jackfruit leather, the model was trained using backpropagation algorithm. The prediction of the performance of the drier was found to be excellent after it was adequately trained and can be used to predict the potential of the drier for different locations and can also be used in a predictive optimal control algorithm. Computational Fluid Dynamics (CFD) as a tool for prediction of flow and temperature fields inside the solar collector and solar dryer is addressed and the applications of CFD in food industry are discussed. Finally, prospects of solar dryers for drying fruits, vegetables, spices, medicinal plants and fish in the tropics and subtropics are discussed. 28
International Solar Food Processing Conference 2009 Scheffler Parabolic Dish from 7,2m2 to 50m2 at the Brahma Kumaris, Mt. Abu Golo Pilz, Advisor, Brahma Kumaris , Pandav Bhawan, Mount Abu 307 501 Rajasthan, India, mobile 09413384877, golobhai@gmx.net Examples of solar food projects : successes and hindrances, networking and cooperation, Solar food processing and back-up systems, how to ensure sustainable energy supply 1. RENEWABLE ENERGY WITH A SPIRITUAL FOUNDATION Since more than15 years PRAJAPITA BRAHMA KUMARIS ISWHARIYA VIDYALAYA (BK) which has more than 7000 Meditation centers in India and more than 500 abroad is actively involved in the research and demonstration of alternative renewable energy concepts. The Brahma Kumaris is mainly administered by women and teaches spiritual and ethical values in India as well as in more than 100 other countries. The institution is a Non- Governmental Organization (NGO) of the United Nations, affiliated to the Department of Public Information (DPI). It has general consultative status on the roster of the UN Economic and Social Council and UNICEF. The organization has participated in several UN peace projects, as well as the Earth Summit in Rio, 1994 and Habitat 2 in Istanbul, 1996. The Brahma Kumaris received six UN Peace Messenger Awards. The Brahma Kumaris headquarters comprises three large complexes at Mt. Abu and Abu Road. Pandav Bhawan, the International Headquarters; the Academy for a Better World, Gyan Sarovar, near Mt. Abu; and Shantivan Complex at Abu Road. The institution can accommodate up to 20,000 people. Established in 1992, the Brahma Kumaris' Department of Renewable Energy works in tandem with the World Renewal Spiritual Trust, an affiliate of the University. After focussing almost exclusively on education in values and spirituality since its foundation in 1937, the University expanded its purview to include the field of renewable energy. This decision was taken in the context of worldwide environmental degeneration and the pressing need to meet the requirements for electricity and other power sources for its many residents and visitors. It became obvious to combine Spirituality and Values with development of solar energy and other alternative technologies. The fusion of both drives us towards a better future. Since then BK became one of the key developers in the world in solar institutional cooking systems. We also work in the area of solar photovoltaic Power stations with an installed capacity of more than 700 kw peak, spread throughout the Indian subcontinent. In addition various wind & solar photovoltaic hybrid systems have been tested. With the help of a solar Aditya shop the local residents are supplied with solar lanterns, photovoltaic home light systems and solar cooking boxes. Mt. Abu in Rajasthan, India, possesses favorable sources of potential renewable energy. At Mt. Abu's altitude of 1,200 meters there are almost continuously clear skies. The wind speed and the solar radiation in Mt. Abu are among the best in the state of Rajasthan. 29
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Abstracts Oral Presentations - Solar Food Processing Network

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