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Extended Evaluation of the Impact of Rainfall, Sewer Network and Land Use Retention on Drainage System Performance in a Multi-Criteria Approach – Modeling, Sensitivity Analysis

Szeląg Bartosz, Fatone Francesco, Kiczko Adam, Majerek Dariusz, Białek Anita, Łagód Grzegorz, Piotrowicz Adam, Dąbek Lidia

Advances in Science and Technology. Research Journal

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2024

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Vol. 18, no 6

291--303

EN

An extensive methodology for analyzing the impact of catchment and sewer network retention on drainage system operating conditions during hydraulic overloading is presented. To evaluate the performance of the sewer system and identify the need for repair actions, logistic regression models were developed to predict the unit flooding volume and manhole overflowing. An advanced sensitivity analysis was performed to determine the key parameters (retention and roughness of impervious and pervious areas as well as sewer channel retention) conditioning the reduction of uncertainty in the simulation results and ensuring the assumed hydraulic effect. A coefficient expressing the quotient of the duration of rainfall conditioning the exceedance of the limits of the unit flooding volume (13 m3·ha−1) as well as the degree of overflowed manholes (0.32) was determined, allowing the determination of the key performance criterion of the sewer network to take corrective action depending on field and channel retention. It was shown that the catchment area retention had the key influence on the conditions of sewer operation and the probability of remedial work. Increasing the rainfall duration led to a decrease in sensitivity coefficients with respect to the identified parameters of the SWMM model, which is important when selecting rainfall events for the calibration and validation sets. The usefulness of the developed methodology was demonstrated at the stage of building mechanistic models, which is of significance when planning field studies.

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Ocena wpływu niepewności modeli na aspekty ekonomiczne wymiarowania zbiorników

Drewnowski Jakub, Białek Anita, Szeląg Bartosz

Inżynieria Morska i Geotechnika

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2022

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nr 6

239--245

PL

Regulowanie i opóźnianie przepływu ścieków deszczowych w kanalizacji i jego wpływ na wymiarowanie oraz racjonalne wykorzystanie sieci kanalizacyjnej i projektowanie zbiorników. Określenie całkowitych kosztów budowy niewielkich zbiorników przy założeniu 4, 5, 6 i 7 komór zbiorników połączonych równolegle. Wpływ uwzględnienia dynamiki opadu na długość komory akumulacyjnej zbiornika. Metoda maksymalnych natężeń (MMN) – ze współczesnymi probabilistycznymi modelami opadów jako bezpieczna metoda bilansowania strumieni wód opadowych.

EN

The control and delaying the flow of rainwater in the sewage system and their influence on dimensioning and rational use of the sewage system and tanks design. Determination of the total construction costs of small tanks assuming 4, 5, 6 and 7 chambers connected parallel in tanks. The effect of the inclusion of precipitation dynamics on the length of the accumulation chamber in the tank. The method of maximum intensity (MMN) – modern probabilistic precipitation rain models as a safe method of balancing rainwater streams.

3

Thermal comfort measurements in the Energis building

Białek Anita, Koltuk Bade

Structure and Environment

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2021

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Vol. 13, no. 1

10--15

EN

In the paper the measurements of thermal comfort in the modern smart building “Energis” have been presented together with their analysis. The data have been obtained in the spring and the analyses of indoor air parameters as well as subjective responses of the volunteers have been conducted. Based on the performed studies it has been concluded that the people felt fine in the considered room (pleasantly warm, cool and comfortable) and described their feelings as acceptable and comfortable.

PL

W artykule przedstawiono wyniki badań i analizę komfortu cieplnego w budynku inteligentnym „Energis”. Dane eksperymentalne uzyskano w okresie wiosennym, a analiza dotyczyła parametrów powietrza wewnętrznego, jak również subiektywnych odczuć ochotników. W oparciu o przeprowadzone badania można stwierdzić, że użytkownicy czuli się dobrze w rozpatrywanym pomieszczeniu (przyjemnie ciepło i chłodno, a także komfortowo) i ocenili swoje odczucia jako akceptowalne i komfortowe.