Heat pumps in district heating networks

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Abstract

In the current Danish energy system, the majority of electricity and heat is produced in combined heat and power plants. With increasing shares of intermittent renewable power production, it becomes a challenging task to match power and heat production, as heat demand and production capacity constraints limit the power plants. Efficient heat pumps can be used to decouple the constraints of electricity and heat production, while maintaining the high energy efficiency needed to match the politically agreed carbon emission goals. The requirements in terms of COP, location, capacity and economy are calculated using an energy system model which includes power plants, heat pumps and district heating consumption profiles. The model is developed with focus on accurate representation of the performance of the units in different locations and operating modes. The model can assist in investment decisions and strategic planning in the energy sector. The paper presents a case study of optimal implementation of heat pumps in the present energy system of the Copenhagen area. By introduction of the correct capacity of heat pumps, a 1,6 % reduction in fuel consumption for electricity and heat production can be obtained at present conditions in a month with high heating demand.
Original languageEnglish
Publication date2013
Number of pages9
Publication statusPublished - 2013
Event2nd Symposium on Advances in Refrigeration and Heat Pump Technology - Odense, Denmark
Duration: 7 Mar 2013 → …
Conference number: 2
http://www.coolenergy.dk

Conference

Conference2nd Symposium on Advances in Refrigeration and Heat Pump Technology
Number2
CountryDenmark
CityOdense
Period07/03/2013 → …
Internet address

Keywords

  • Combined heat and power
  • Heat pumps
  • District heating
  • Energy systems analysis
  • Optimisation

Cite this

Ommen, T. S., Markussen, W. B., & Elmegaard, B. (2013). Heat pumps in district heating networks. Paper presented at 2nd Symposium on Advances in Refrigeration and Heat Pump Technology, Odense, Denmark.