Share

Low-carbon district heating: performance modeling of hybrid solar, heat pump, and thermal storage systems for district thermal energy in the United States.

Number: 2321

Author(s) : COX J. T., CAMPOS G., ARMATIS P. D., BELDING S., LOWDER T., KRISTENSEN L., ZOURELLIS A., BLESS F., ARPAGAUS C., BALDWIN S. F.

Summary

District heating requires thermal energy temperatures ranging from 40°C to 120°C. Typically, the thermal energy input for these systems has been largely met through fossil energy; however, the temperature range is low enough that it presents an opportunity for low-carbon technologies, such as solar thermal and electrified thermal generators like heat pumps (HPs), to decarbonize district heat generation. In this paper, an HP model is applied to estimate the performance and economics of a real-world, low-carbon district heating substation. This system comprises a flat plate
solar collector field paired with a mechanical vapor compression HP and hot water thermal storage, augmented by gas-fired boilers. Plant data from a district heating substation in Denmark, provided by Aalborg CSP, are used to tune the model and to estimate the system’s benefits in terms of both standard financial metrics (internal rate of return and payback) and environmental metrics, including avoided CO2 emissions. The model is subsequently employed to estimate the technical and economic potential of solar+HP+thermal storage hybrid systems as retrofits for district heating systems in eight U.S. markets.

Available documents

Format PDF

Pages: 10 p.

Available

Free

Download

Details

  • Original title: Low-carbon district heating: performance modeling of hybrid solar, heat pump, and thermal storage systems for district thermal energy in the United States.
  • Record ID : 30030656
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

Links


See other articles from the proceedings (224)
See the conference proceedings

Indexing