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Updated: Oct 19, 2025
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Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
Published on: April 30, 2018
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A distributed heat transfer model for thermal-hydraulic analyses in sewer networks
Alejandro Figueroa1, Bruno Hadengue2, João P Leitão1
1Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf 8600, Switzerland.
Water Research
|September 20, 2021
Summary
SWMM-HEAT, a new model, enhances urban drainage simulations by coupling thermal-hydrodynamic processes. This tool efficiently predicts wastewater temperature dynamics, aiding in urban heat energy management.
Area of Science:
- Environmental Engineering
- Urban Hydrology
- Water Resource Management
Background:
- Urban drainage networks possess significant thermal capacity from wastewater and stormwater.
- Existing models lack the necessary detail for coupled thermal-hydrodynamic simulations at a network scale.
Purpose of the Study:
- To introduce SWMM-HEAT, a novel model for efficient, full-network scale thermal-hydrodynamic simulations in urban drainage systems.
- To enable accurate prediction of water-energy dynamics within these networks.
Main Methods:
- Extension of the EPA-StormWater Management Model (SWMM) with a heat-balance component to create SWMM-HEAT.
- Validation using real-world case studies under dry weather conditions.
- Sensitivity analysis of model parameters.
Main Results:
- SWMM-HEAT adequately predicts temperature dynamics in urban drainage networks (RSR 0.71–1.1).
- Model performance is sensitive to soil temperature, headspace temperature, and headspace humidity.
- Simulations are computationally efficient, completing a 5-day run in minutes.
Conclusions:
- SWMM-HEAT provides a valuable tool for advanced thermal-hydrodynamic simulations in urban drainage.
- The model facilitates the estimation of heat budgets for integration into urban planning.
- Public availability of the SWMM-HEAT code promotes wider adoption and research.
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