A LCC Analysis of Rainwater Management Variants

• Authors: Daniel Słyś , Agnieszka Stec , Martina Zeleňáková
• Languages of publication: EN

Abstracts

EN

The paper presents results of the Life Cycle Cost (LCC) analysis carried out for several variants of rainfall water management in a newly designed multi-family dwelling house. According to the LCC methodology, calculations were performed for the whole undertaking life cycle with both investment outlays and operation/maintenance costs taken into account. The LCC analysis was carried out, in particular, for a variant assuming that the rainwater collected from the roof will be entirely discharged to the sewage system. On the other hand, the second variant provided for replacement of traditional building roof with a green one. Facilities of that type, thanks to their retention properties, may delay runoff of rainwater and reduce the overall quantity of water discharged from roof surface and therefore can be classified as Sustainable Urban Drainage Systems. In the third case considered, rainwater is to be utilised in the building. It was assumed that precipitation water will be stored in a tank and used in the sanitary water supply system for flushing toilets, thus reducing the overall tap water purchase costs.

PL

Przedstawiono wyniki analizy LCC dla kilku wariantów zagospodarowania wód opadowych dla projektowanego wielorodzinnego budynku mieszkalnego. Zgodnie z metodologią określania Life Cycle Cost wykonano obliczenia w pełnym cyklu istnienia przedsięwzięcia, uwzględniając zarówno nakłady inwestycyjne, jak i koszty użytkowania i konserwacji. Analiza LCC została przeprowadzona dla wariantu, w którym założono, że wody opadowe z dachu zostaną odprowadzone w całości do systemu kanalizacyjnego. Natomiast w drugim wariancie tradycyjny dach budynku został zastąpiony dachem zielonym. Tego typu obiekty dzięki swoim właściwościom retencyjnym mogą opóźniać spływ wód opadowych i redukować całkowity odpływ z powierzchni dachu, przez co zaliczane są do zrównoważonych systemów odwadniających (Sustainable Urban Drainage Systems). W trzecim przypadku zastosowano system gospodarczego wykorzystania wody deszczowej w budynku. Założono, że zmagazynowane w zbiorniku wody opadowe zostaną wykorzystane w instalacji sanitarnej do spłukiwania toalet, co pozwoli obniżyć koszty zakupu wody wodociągowej i wpłynie korzystanie na wyniki finansowe funkcjonowania obiektu mieszkalnego.

Keywords

EN

rainwater; LCC analysis; sustainable development

PL

woda deszczowa; analiza LCC; rozwój zrównoważony

• Publisher: De Gruyter Open
• Journal: Ecological Chemistry and Engineering S
• Year: 2012
• Volume: 19
• Issue: 3
• Pages: 359-372

Dates

published

1 - 1 - 2012

online

16 - 7 - 2012

Contributors

author

Daniel Słyś

• Department of Infrastructure and Sustainable Development, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

author

Agnieszka Stec

• Department of Infrastructure and Sustainable Development, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

author

Martina Zeleňáková

• Department of Environmental Engineering, Technical University of Kosice, Vysokoškolská 4, 042 00 Košice, Slovakia

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Identifiers

DOI

10.2478/v10216-011-0026-7