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Scoop wheels (Sakia, Tympanum or Tablia)

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{{Language-box|english_link=Scoop wheels (Sakia, Tympanum or Tablia) | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | swahili_link=coming soon | korean_link= Coming soon | chinese_link=斗轮水车（Sakia, Tympanum 或者 Tablia） | indonesian_link= Coming soon | japanese_link= Coming soon }} [[Image:scoop wheel icon.png|right|80px]][[Image:scoop wheels.jpg|thumb|right|300px200px|Animal driven scoop wheel. Photo: [http://sinaishieldofegypt.blogspot.com/2010/05/egyptian-shadoof.html Sinai shield of Egypt.]]][[Image:sakia wheel.jpg|thumb|right|200px|Sakia or Tympanum (electrically powered in this case). Drawing: FAO.]][[Image:sakia design.jpg|thumb|right|200px|The Fathi is the optimum design of Sakia. Drawing: FAO.]]

The scoop-wheel (sakia in Egypt where it originated) has some factors in common with the noria. Although widely used in Egypt it has failed to become popular anywhere else. It is however an efficient and effective device.

The types of sakia with separate discharge points for each compartment are distinguished by the generic name "tablia". A further advantage of the tablia type of device is that the water discharges a few centimeters above the centre shaft and therefore increases the useful head in relation to the diameter; especially with smaller machines. Typically a 3m tablia will lift water 1.5m compared with 0.90m for a centre-discharge sakia.

Another important conclusion from the tests by HRES was that for wheels operated in the 2-15rpm range, 6-8 compartments provide the optimum discharge. According to Molenaar [1], the <br>The following performance might be expected from traditional sakia designs: diameter of sakia _ head lifted _ output

{| class="wikitable"

|-

! diameter of sakia

! head lifted

! output

|-

| 5m

| 1.8m

| 36m3/h

|-

| 4m

| 1.3m

| 51m3/h

|-

| 3m

| 0.9m

| 75m3/h

|-

| 2m

| 0.3m

| 114m3/h

|}

5m 1.8m 36m3/h

4m 1.3m 51m3/h===Manuals, videos and links===

3m 0* VIDEO: [http://www.9m 75m3thewaterchannel.tv/hmedia-gallery/1481-traditional-foot-driven-pump-vietnam?category_id=772 Traditional foot-driven pump, Vietnam] This pump uses a chain of a scoops to lift water (in this case for draining a paddy field) in Huong Tra, Central Vietnam.

2m 0===Acknowledgements===* [http://www.fao.3m 114m3org/h Comparison of the above outputs with those from a traditional persian wheel indicate that the sakia is somewhat more efficientdocrep/010/ah810e/AH810E05.htm REVIEW OF PUMPS AND WATER LIFTING TECHNIQUES.] Natural Resources Management and Environment Department, although of course it cannot lift water as high as is possible with a persian wheelFood and Agriculture Organization (FAO).

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