Introduction of new decentralised renewable heat supply in an existing district heating system

Miika Rämä; Mikko Wahlroos

Introduction of new decentralised renewable heat supply in an existing district heating system

Miika Rämä, Mikko Wahlroos

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Abstract

The effects of new heat pump and solar collector capacity in an existing district heating system are studied using Helsinki district heating system as a case study. Existing heat supply consists of combined heat and power plants, boilers and large-scale heat pumps. Also, the significance of low distribution temperatures is evaluated. An outdoor temperature dependent supply temperatures between 80-110 °C and a constant supply temperature of 65 °C are considered for distribution.

EnergyPro modelling tool is utilised, providing information on optimal operation of heat supply. Changes in heat supply are studied with emissions and techno-economic performance of the new heat sources evaluated.

Results indicate that CHP based heat production is set the decrease 67-75 % by 2030. Heat pumps represented the most interesting option for heat supply with significantly better performance in all economic, emissions and energy efficiency point of views. Low temperature distribution further improved the system performance.

Original language	English
Title of host publication	The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES
Publisher	Faculty of Mechanical Engineering and Naval Architecture, Zagreb
Pages	1-16
Number of pages	16
Publication status	Published - 2017
MoE publication type	A4 Article in a conference publication
Event	Conference on Sustainable Development of Energy, Water and Environment Systems - Dubrovnik, Croatia Duration: 4 Oct 2017 → 8 Oct 2017 Conference number: 12

Publication series

Name	Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems
Publisher	Energetika marketing
ISSN (Print)	1847-7186
ISSN (Electronic)	1847-7178

Conference

Conference	Conference on Sustainable Development of Energy, Water and Environment Systems
Abbreviated title	SDEWES
Country	Croatia
City	Dubrovnik
Period	04/10/2017 → 08/10/2017

Keywords

District heating
Heat pumps
Solar collectors
Combined heat and power
Low temperature distribution
Energy system modelling

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Cite this

Rämä, M., & Wahlroos, M. (2017). Introduction of new decentralised renewable heat supply in an existing district heating system. In The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES (pp. 1-16). (Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems). Faculty of Mechanical Engineering and Naval Architecture, Zagreb.

Rämä, Miika ; Wahlroos, Mikko. / Introduction of new decentralised renewable heat supply in an existing district heating system. The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2017. pp. 1-16 (Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems).

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title = "Introduction of new decentralised renewable heat supply in an existing district heating system",

abstract = "The effects of new heat pump and solar collector capacity in an existing district heating system are studied using Helsinki district heating system as a case study. Existing heat supply consists of combined heat and power plants, boilers and large-scale heat pumps. Also, the significance of low distribution temperatures is evaluated. An outdoor temperature dependent supply temperatures between 80-110 °C and a constant supply temperature of 65 °C are considered for distribution.EnergyPro modelling tool is utilised, providing information on optimal operation of heat supply. Changes in heat supply are studied with emissions and techno-economic performance of the new heat sources evaluated.Results indicate that CHP based heat production is set the decrease 67-75 % by 2030. Heat pumps represented the most interesting option for heat supply with significantly better performance in all economic, emissions and energy efficiency point of views. Low temperature distribution further improved the system performance.",

keywords = "District heating, Heat pumps, Solar collectors, Combined heat and power, Low temperature distribution, Energy system modelling",

author = "Miika R{\"a}m{\"a} and Mikko Wahlroos",

note = "M. R{\"a}m{\"a}, M. Wahlroos, Introduction of new decentralised renewable heat supply in an existing district heating system, Proceedings of the 12th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES2017.0101, 1-16 (2017); Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES ; Conference date: 04-10-2017 Through 08-10-2017",

year = "2017",

language = "English",

series = "Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems",

publisher = "Faculty of Mechanical Engineering and Naval Architecture, Zagreb",

pages = "1--16",

booktitle = "The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES",

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Rämä, M & Wahlroos, M 2017, Introduction of new decentralised renewable heat supply in an existing district heating system. in The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, pp. 1-16, Conference on Sustainable Development of Energy, Water and Environment Systems, Dubrovnik, Croatia, 04/10/2017.

Introduction of new decentralised renewable heat supply in an existing district heating system. / Rämä, Miika; Wahlroos, Mikko.

The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2017. p. 1-16 (Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Introduction of new decentralised renewable heat supply in an existing district heating system

AU - Rämä, Miika

AU - Wahlroos, Mikko

N1 - Conference code: 12

PY - 2017

Y1 - 2017

N2 - The effects of new heat pump and solar collector capacity in an existing district heating system are studied using Helsinki district heating system as a case study. Existing heat supply consists of combined heat and power plants, boilers and large-scale heat pumps. Also, the significance of low distribution temperatures is evaluated. An outdoor temperature dependent supply temperatures between 80-110 °C and a constant supply temperature of 65 °C are considered for distribution.EnergyPro modelling tool is utilised, providing information on optimal operation of heat supply. Changes in heat supply are studied with emissions and techno-economic performance of the new heat sources evaluated.Results indicate that CHP based heat production is set the decrease 67-75 % by 2030. Heat pumps represented the most interesting option for heat supply with significantly better performance in all economic, emissions and energy efficiency point of views. Low temperature distribution further improved the system performance.

AB - The effects of new heat pump and solar collector capacity in an existing district heating system are studied using Helsinki district heating system as a case study. Existing heat supply consists of combined heat and power plants, boilers and large-scale heat pumps. Also, the significance of low distribution temperatures is evaluated. An outdoor temperature dependent supply temperatures between 80-110 °C and a constant supply temperature of 65 °C are considered for distribution.EnergyPro modelling tool is utilised, providing information on optimal operation of heat supply. Changes in heat supply are studied with emissions and techno-economic performance of the new heat sources evaluated.Results indicate that CHP based heat production is set the decrease 67-75 % by 2030. Heat pumps represented the most interesting option for heat supply with significantly better performance in all economic, emissions and energy efficiency point of views. Low temperature distribution further improved the system performance.

KW - District heating

KW - Heat pumps

KW - Solar collectors

KW - Combined heat and power

KW - Low temperature distribution

KW - Energy system modelling

M3 - Conference contribution

T3 - Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems

SP - 1

EP - 16

BT - The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES

PB - Faculty of Mechanical Engineering and Naval Architecture, Zagreb

T2 - Conference on Sustainable Development of Energy, Water and Environment Systems

Y2 - 4 October 2017 through 8 October 2017

ER -

Rämä M, Wahlroos M. Introduction of new decentralised renewable heat supply in an existing district heating system. In The 12th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES. Faculty of Mechanical Engineering and Naval Architecture, Zagreb. 2017. p. 1-16. (Book of abstracts : Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems).