The invension is related with the hybrid Technologies and renewable energy technology..

This invenstion is to develop a hybrid food drying system by using sun energy (renewable) as a primarily source of energy.. Nowadays the food drying has two methods:: a) Drying with sun energy: In this method, the food is located to wooden or metal platforms which has more sunlights. These platforms enables 90 angle directed sunlights to the food. There is no any other seconder energy in this systems. The foods are dried only by sunlights. In the case of small particle food types, the food is layed down on the floor, so that it is dried by the sunlights. The disadvantages of the system are: a)Because of the wind, the food cannot get the requiered hot air on time, b) Hygiene Problems c) No air circulation which is the constituent of drying process, d) Aflatoxin problems e) limited conditions for drying process, depending the weather conditions.. b) Convection drying: In this sytem the source of energy is biomass, diesel, electric, fuel oil, LPG, LNG, Natural gas.. etc. One hot air generator transfer the termodynamic-air to a flat layered conveyor or a tunnel or a fluid bed or a spray dryer. The food in the dryer is dried under the efficient heat and air flow. The disadvantage of the system is higher costs becouse of the cost of the energy.Since the drying process have higher costs, operating cost will be higher. The profit rate is lower and the source of energy is not used effectively.

It s not environment friendly since the waste gases becouse of the burned fuel diffuses to the atmosphere (exept electiricity dryer). There is not any patent application related with our subject. There is one patent RU2271502 (C2) dd. 2006-03-10 related with an aparatus which can be used in food drying or bread making and operates with sunlights. There is heliotermal burning chamber in the aparatus. The heating process can be completed in this burning chamber. The specification of this burning chamber is to be made up of higher quality heat isolation foam. This foam is very thin so that sunlights can be directed effectively to the cavity of the oven. But this patent is not related with our application.. There is another patetnt no: JP2000088457 dd. 2000-03-01. It is to dry the foods by increasing the temperature of the environment. The heat source is heated water by sunlights. Therefore, this patent is not related with our application, the Technologies are different.

This invention is brought close together the advantages of the two food drying

Technology: sun drying and convection drying. Since it operates with the sunlight as primarily source of energy, the drying cost is diminished and hygiene and aflatoxin problems are solved. In existing modern Systems the source of enegy is biomass, diesel, eletricity, fuel oil, LPG, LNG, natural gas..etc. Since the primarily source of energy will be sunlight in this new system, the operating costs will be decreased after initial investment cost. Since he cost of the system will be decreased, the profit will be higher for the owners of the Systems. In addition, the energy consuming will be decreased and therefore, the source of energy is used efficiently.

The environment is protected by having no waste gases. Additionally the system will have the characteristics of Fixed&Big and mobile&compact according to the capacity required.

» Fixed&Big Sytems: This system is designed for large araeas with hhigher drying capacities. The fixed Systems will be manufactured if the the quantity of foods are more and has a seasonal continuity. • Mobile compact Systems: If drying facilities are realised for a limited time of a year, these Systems will be rantable. System may have wheels. Therefore there is no reason to have big investments..

In order to have the purpose of the invention, the system is designed and the pictures are attached with related components. Among these drawings; Picture-1 The picture of the crosssection of hot air production panels.

Picture-2 The location picture of hot air production panles, reflecting mirrors and servomotor attack sun-tracking system. Picture-3 General location plan for operating principle. Picture-4 Shematic drawing shows electricity circulation.. All the parts are numbered these are:

1) Light absorbing metal

2) Glass

3) Mirror 4) Framework 5) Platform

6) Air void

7) Servomotor attack sun traking systems

8) Hot air production panels 75 9) Seconder heat source

Both Fixed&Big Systems and mobile&compact Systems have the same working principles. The drying principle is to dry with hot air (convectional). The diffrence form classic method is to use sun energy instead of biomass, gas, diesel. According to this characteristic, the system has the hybrid specifications. The main heat source is

80 sunlights. The supporting heat source is the changer (9) of biomass gas or of liquid fuel burners (hot air generator). The supporting heat source call out fractionally if the sunlights are not adequate or in the night time..

The supporting heat source is the changer of hot air operates classically (9). According to this principle the burner using biomass, gas or liquid is integrated with the heat

85 changer made up of heat resistant metal. Burner sprays flames to the inside of the hot air boiler. The air is heated by passing through the wall of the heat changer than arrived to the part which drying process starts. According to the type of the food to be dried we can choose the layered conveyor, tunnel or cylinder type drying systems. This is known well. The novelty of our invention is to use this classic drying method as a

90 seconder and hot air production panels (8) which uses sunlights as a primer. This is the novelty idea to use hot air production panels (8) with new working principle.. The main source of energy is sunlights. In order to have the hot air, the system uses hot air production panels (8). The efficiency of the system will be always at the higher level since the hot air production panels will heat the air directly. These panels are

95 brought together by series connection or paralel connection so that the required temperature and air volume is provided. The series connected hot air production panels enables air to be heated more. The paralel connected hot air production panels enables more air volume to be heated..

100 Our invention hot air production panels (8) provides drying energy primarily. Hot air production panels are made up of framework (4), light absorbing metal (1), reflecting mirror (3), Glass coating (2) , Servomotor attack sun tracking system (7). Framework (4) has a form of rectangular prism built up panles carcas. This structure opens two sides. The reason is the hot air production panels (8) connect each other

105 from these points. The sunlights (11) comes directly to black matt color (1) by passing though transperent glass (2) and then it is absorbed. At the same time, by the courtesty of mirrors located at the both sides of hot air production panels(8), the sunlights (11) comes to the bottom side of the light absorbing metal (1). This metal (1) has a shape of trapeze this makes the metal has more absorbing area and heat transfer area are more

110 than a normal metal.. The light absorbing metal (1) is located at the center of the panels (δ)vertically and it continue along with the panel (8). While air is transporting trough air void (6) in panels (8) via a vantilator (12), it has the heat from wall of the absorbing metal (1). The heat transfer is more since the metal (1). Therefore the air passig through the panel (8) is heated. The top and the bottom of the Panel (8)is

115 coated with transperent glass(2). By this way the sunlight (11) can be reached to the absorbing metal (1) easily and gets heat.. The reflecting mirrors (3) located both side of the penels (8) reflects the sunlight(11) to the bottom of the absorbing metal(1). Servomotor attack sun-tracking system (7) follows the sun electromekanically and changes the location of platform (5) which has hot air production panels (8) reflecting

120 mirrors (3) on it. The electricity required by the system is provided from photovoltaik panels (which produce electricity from sunlights.