Sunflower steam pump
The sunflower steam pump has been developed to provide small holder farmers with an affordable and sustainable way to bring water to their fields. The parabolic collector captures the sunlight and concentrates it on the boiler in the focal point. The water in the boiler comes to the boil and the steam drives a steam engine which in turn drives a water pump. The pump comes in a suction version (up to 7m) and a deepset version up to 20m.
The capacity, on a clear day is maximum 16m3/day when lifting from 4m and 4m3/day when lifting from 20m. Assuming a crop water equirement of 5l/sqm.day, this capacity is enough for a 3000 and 800 sqm field respectively.
The pump is expected to cost 200-300 euro when produced in sufficient volume.