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A platform for research: civil engineering, architecture and urbanism
Life cycle costs of pumping stations
Analysis of the life cycle costs (LCC) for pumping systems provides an invaluable basis for decision-making as well as offering insights into resource use. Here, the real case of a group of pumping stations is examined operating as part of the local water-supply system to provide water to high-rise dwellings. The tests carried out and the analyses of costs incurred during the assumed lifetime make it possible to formulate a number of conclusions: 1) Investment costs play the crucial role as the cost driver for pumping stations supporting the local water-supply system. They constitute about 50% of total LCC and are obviously paid in the first year of pumping station use. 2) Energy costs account for about 30% of LCC and are spread across the whole period of the pumping station's lifetime. 3) The costs of supervision and service are similar for the analysed pumping stations. The cost depends on the salary rates for the individual maintenance staff (which vary according to the range of additional tasks each does), that is why it varies for pumping stations being exploited by different users. 4) In general, the analysed pumping stations operated without failure, or the cost of repairs was small enough that it could be omitted There was one emergency case noted where one of four pumps at a pumping station failed. However, it was removed without generating any costs and was therefore omitted from the LCC calculation. 5) There were neither environmental costs nor costs associated with withdrawal from use for the pumping stations investigated. 6) The tests carried out made it possible to evaluate the operational efficiency of the pumping stations by means of the analysis of energy consumption indexes.
Life cycle costs of pumping stations
Analysis of the life cycle costs (LCC) for pumping systems provides an invaluable basis for decision-making as well as offering insights into resource use. Here, the real case of a group of pumping stations is examined operating as part of the local water-supply system to provide water to high-rise dwellings. The tests carried out and the analyses of costs incurred during the assumed lifetime make it possible to formulate a number of conclusions: 1) Investment costs play the crucial role as the cost driver for pumping stations supporting the local water-supply system. They constitute about 50% of total LCC and are obviously paid in the first year of pumping station use. 2) Energy costs account for about 30% of LCC and are spread across the whole period of the pumping station's lifetime. 3) The costs of supervision and service are similar for the analysed pumping stations. The cost depends on the salary rates for the individual maintenance staff (which vary according to the range of additional tasks each does), that is why it varies for pumping stations being exploited by different users. 4) In general, the analysed pumping stations operated without failure, or the cost of repairs was small enough that it could be omitted There was one emergency case noted where one of four pumps at a pumping station failed. However, it was removed without generating any costs and was therefore omitted from the LCC calculation. 5) There were neither environmental costs nor costs associated with withdrawal from use for the pumping stations investigated. 6) The tests carried out made it possible to evaluate the operational efficiency of the pumping stations by means of the analysis of energy consumption indexes.
Life cycle costs of pumping stations
Lebenszykluskosten in Pumpstationen
Cieslak, Mariusz (author)
World Pumps ; 30-33
2008
4 Seiten, 1 Bild, 2 Tabellen, 1 Quelle
Article (Journal)
English
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