Per-Olof Johansson Kallioniemi from Lund University

Improved use of individual metering concepts

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In COOL DH we have studied how to improve individual metering concepts and ways of using gathered data for billing district heating. In the report Improved use of individual metering concepts, we provide an overview of regulations on district heating metering and billing in Sweden and Denmark and an overview on applications to use on customer’s meter readings for energy efficiency improvements.
COWI A/S

Technical specifications for substation solutions for single family units

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This report aims to give an overview of the technical solutions that fulfil the energy and the safety requirements for domestic hot water systems in low-temperature district heating networks.
Visualisation of XplorionLunds Kommun Fasitghets AB

Welcome to COOL DH newsletter #2

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The COOL DH-project is now closing its innovation process phase, which focused on different installation solutions for consumers, the distribution side and the production side.
Emanuele Zilio

New design concepts for optimisation of LTDH distribution systems

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In this report you will learn about the design process of a low-temperature district heating network, highlighting the design factors that lead to reduction of heat losses in the distribution pipes. To demonstrate the technology, two real-scale demonstration projects are described in Høje-Taastrup, Denmark and in Lund, Sweden. Emanuele Zilio, engineer at COWI A/S, gave a short interview to summarize the report

Solutions for local integration of renewable energy sources (RES)

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This deliverable summarizes and gives an overview of existing and newly developed technical solutions used for the domestic hot water production that can be implemented in low temperature or ultra-low temperature district heating networks, and that can increase the share of renewable energy in the building sector.

Invitation to external partners to be part of a test bed for Low Temperature District Heating

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Kraftringen is building a unique low temperature district heating network. We invite external partners to demonstrate various innovative products and practises in this grid. The test bed is under development, but we are open for ideas from…

System solutions for multifamily houses and tertiary buildings

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The pipe heat losses in the circulation of domestic hot water (DHW) can be high in comparison to the demand and use of DHW. Flat stations can be used in order to potentially lower these heat losses. Kraftringen, COWI A/S and Cetetherm have looked…

Watch the recorded Innovation webinar

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On the Innovation webinar we presented some of the main findings from COOL DH first year with focus on innovations for low temperature district heating.
Lund 180620 Sara Kralmark på Kraftringen. Foto: André de Loisted

LTDH connected appliances - eliminating electricity topping of temperature

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Kraftringen and COWI A/S have produced this report that shortly describes the technology and history of HWC (Heating Water Circuit) appliances, as well as traditional dishwashers that are connected to hot tap water and washing machines with both hot and cold water connections.

How to optimize cascade couplings for best use of low temperature sources

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Kraftringen and COWI A/S have worked together on a paper that describes the analysis of energy efficiency in heat pump systems that recover waste heat from low temperature heat sources for District Heating. Martin Gierow, chemical engineer and…