Development of a topology analysis tool for fifth-generation district heating and cooling networks

doi:10.1016/j.enconman.2019.05.066

This content will become publicly available on September 15, 2020

Title: Development of a topology analysis tool for fifth-generation district heating and cooling networks

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Abstract

Fifth generation district heating and cooling networks are characterized by supply temperatures in the ambient range of 15-25 degrees C, which not only reduces heat loss but also allows for integrating various kinds of low-temperature waste heat sources. The ability of these networks to absorb waste heat that is normally unrecoverable makes them an attractive solution for the future energy supply of urban areas. To enhance the adoption of these networks, this paper describes the development of a software tool to analyze the feasibility of fifth-generation of district heating and cooling systems in both new and existing districts. The research attempts to answer the question: 'Which buildings should be connected to a low-temperature hydraulic network given both the incremental benefits and costs relative to the scenario of decentralized (dedicated) heating and cooling systems for each building?' Therefore, all possible network layouts of the buildings are considered where the heating and cooling demands of each building are met by the fifth-generation of district heating and cooling network. For the heating and cooling load characterization of the buildings, reduced-order models are used while renewable energy and waste heat sources are included in the network. The focus of the research lies in themore »« less

Authors:

von Rhein, Justus ^[1]; Henze, Gregor P. ^[2];

^[3]; Fu, Yangyang ^[4]

Technical Univ. of Dresden, Dresden (Germany); Univ. of Colorado, Boulder, CO (United States)
Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Univ. of Colorado, Boulder, CO (United States)

Publication Date:: 2019-09-15

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1544531

Report Number(s):: NREL/JA-5500-74358
Journal ID: ISSN 0196-8904

Grant/Contract Number:: AC36-08GO28308

Resource Type:: Accepted Manuscript

Journal Name:: Energy Conversion and Management

Additional Journal Information:: Journal Volume: 196; Journal Issue: C; Journal ID: ISSN 0196-8904

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; fifth-generation district heating and cooling systems; topology analysis; hydraulic network modeling

Citation Formats


                    von Rhein, Justus, Henze, Gregor P., Long, Nicholas, and Fu, Yangyang. Development of a topology analysis tool for fifth-generation district heating and cooling networks.  United States: N. p., 2019. 
        Web.  doi:10.1016/j.enconman.2019.05.066.

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                    von Rhein, Justus, Henze, Gregor P., Long, Nicholas, & Fu, Yangyang. Development of a topology analysis tool for fifth-generation district heating and cooling networks.  United States.  doi:10.1016/j.enconman.2019.05.066.

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                    von Rhein, Justus, Henze, Gregor P., Long, Nicholas, and Fu, Yangyang. Sun .  
        "Development of a topology analysis tool for fifth-generation district heating and cooling networks".  United States.  doi:10.1016/j.enconman.2019.05.066.

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@article{osti_1544531,

  title        = {Development of a topology analysis tool for fifth-generation district heating and cooling networks},

  author       = {von Rhein, Justus and Henze, Gregor P. and Long, Nicholas and Fu, Yangyang},

  abstractNote = {Fifth generation district heating and cooling networks are characterized by supply temperatures in the ambient range of 15-25 degrees C, which not only reduces heat loss but also allows for integrating various kinds of low-temperature waste heat sources. The ability of these networks to absorb waste heat that is normally unrecoverable makes them an attractive solution for the future energy supply of urban areas. To enhance the adoption of these networks, this paper describes the development of a software tool to analyze the feasibility of fifth-generation of district heating and cooling systems in both new and existing districts. The research attempts to answer the question: 'Which buildings should be connected to a low-temperature hydraulic network given both the incremental benefits and costs relative to the scenario of decentralized (dedicated) heating and cooling systems for each building?' Therefore, all possible network layouts of the buildings are considered where the heating and cooling demands of each building are met by the fifth-generation of district heating and cooling network. For the heating and cooling load characterization of the buildings, reduced-order models are used while renewable energy and waste heat sources are included in the network. The focus of the research lies in the development of a hydraulic model for flexible use in the urban energy modeling and the optimization of the fifth-generation of district heating and cooling network topology for a given urban district. This research displays simulation results that quantify the performance of the fifth-generation of district heating and cooling network based on various output metrics, including primary energy usage, carbon dioxide emissions, and network implementation cost.},

  doi          = {10.1016/j.enconman.2019.05.066},

  journal      = {Energy Conversion and Management},

  number       = C,

  volume       = 196,

  place        = {United States},

  year         = {2019},

  month        = {9}

}

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