SOME PROBLEMS RELATING TO THE PROPERTY OF THE FLAT IN SMALL WATER PLANTS

The aim of this work was to investigate magnetic field (MF) usage for urban water treatment. Currently, the popular method of ground water purification includes water aeration and filtration, which are expensive and energy intensive. MF is not used for drinking water treatment but mostly for boiler and cooling water at industrial water plants or in farming for plant growth. The authors decided to test it at a small water treatment station in Poland. An MF generator was placed on the pipe between raw water intake and aeration. The results proved higher efficiency in water treatment, especially in hardness, turbidity, Fe, Mn and NH4 removal.

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Algae Control in Small Water Plants

American Water Works Association ◽

10.1002/j.1551-8833.1953.tb20201.x ◽

1953 ◽

Vol 45 (11) ◽

pp. 1238-1244 ◽

Cited By ~ 2

Author(s):

D. H. Matheson

Keyword(s):

Small Water ◽

Algae Control ◽

Water Plants

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Energy conversion in small water plants with variable speed PM generator

Archives of Electrical Engineering ◽

10.2478/v10171-011-0015-6 ◽

2011 ◽

Vol 60 (2) ◽

pp. 159-168 ◽

Cited By ~ 9

Author(s):

Tadeusz Sobczyk ◽

Witold Mazgaj ◽

Zbigniew Szular ◽

Tomasz Węgiel

Keyword(s):

Energy Conversion ◽

Small Rivers ◽

Power Electronic ◽

Variable Speed ◽

Electronic Unit ◽

Small Water ◽

Three Phase ◽

Conversion System ◽

Energy Conversion System ◽

Water Plants

Energy conversion in small water plants with variable speed PM generatorThe Small Hydro Power Plants allow to increase the energy amount from renewable sources, especially from small rivers in mountainous areas. This paper presents a new concept of a energy conversion system for application in a Small Hydropower Plant (SHP) which is based on a permanent magnet generator (PM generator) with a propeller turbine integrated with the generator rotor. The PM generator can work at a variable speed and therefore energy produced by the PM generator has to be converted by means of a power electronic unit to fit to the three-phase power grid parameters. For this concept, dimensions and parameters of the PM generator were specially designed on account of integration with water turbine. The paper precisely describes elements of energy conversion system and also presents the results of numerical tests for chosen working conditions. An original algorithm of control strategy for power electronic unit was used to adjust generated energy to the required parameters of the three-phase grid.

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