Info

Sub-total

22 ,60

Labour

Sub-total

16,60

U.S. = approximately 15 Turkish lira (1970) TOTAL

$ 51 ,00

Annual operating expenditure:

Polyvinyl chloride sheet replacement and labour $4,50 U.S.

Cost of Drying related to a unit of Material Dried: Estimated: 0,08 $US/Kg of dried grapes 0,23 $US/Kg of dried peppers

3,30 $US/Kg of dried onions (with auxiliary heating) Estimated Life of the Dryer:

Approximately 10 years requiring an annual renewal of polyvinyl chloride (PVC) cover.

Comnents on the Dryer:

This dryer has only been developed for laboratory use. The experience gained indicated that in essence the unit is structurally and functionally operative. Even under unfavourable weather conditions, the unit is able to produce good quality dried products.

The authors would not advocate this dryer for commercial operation, since it is not intended for economy, but for research.

Principal investigator(s): Akyurt, Mehmet

Seljuk, Kudret

Mechanical Engineering Department Middle East Technical university Ankara, Turkey

Reference:

(1) A solar dryer supplemented with auxiliary heating systems for continous operation, Akyurt, M., Selguk, K., Solar Energy 1973, Vol. 14, pp. 313-320

(2) A continous solar dryer, Akyurt, M., Selguk, K., Akyurt, S., 4 pp. Presentation at COMPLES Conference, Athens, 4-9 October 1971.

4 Sheet PVC Cover

4 Sheet PVC Cover

Pressure Regulating Valve - Gas Tank (LPG)

Figure 4. Section View of Solar Dryer Indicating Experimental Set-up

Pressure Regulating Valve - Gas Tank (LPG)

Figure 4. Section View of Solar Dryer Indicating Experimental Set-up

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