du.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Experimental Evaluation and Concept Demonstration of a Novel Modular Gas-Driven Sorption Heat Pump
Dalarna University, School of Technology and Business Studies, Energy Technology.
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Gas-driven sorption heat pumps (GDSHPs) exhibit possibilities in the reduction of energy use and environmental impact of heating systems that utilise natural gas. By utilising renewable thermal energy from the environment, that is, air, ground or water sources, significant reduction of primary energy use can be achieved. However, high cost, low coefficient of performance (COP) and large volume per unit thermal power produced have limited the proliferation of GDSHPs. In this work, exploiting the benefits of reversible chemical reactions in sorption systems, with no internal moving parts, noise, vibration and maintenance-free reactor design, two novel modular prototype sorption components were developed and evaluated experimentally. They were designed to operate as part of an intermittent cycle GDSHP to deliver heat directly to a load or to a stratified hot water store. Prototype 1 was an ammonia-salt basic sorption unit while prototype 2 was an ammonia-salt resorption unit both employing proprietary composite sorbent materials. Test results showed that the prototype 2 reactor produced a specific heating capacity of 46 W/litre at a temperature lift of 50°C yielding a COP of 1.38. Prototype 1 demonstrated higher heating capacity of 73 W/litre at a temperature lift of 70°C but exhibited lower COP of 1.10. Given its higher COP but lower temperature lift, prototype 2 could be employed in a GDSHP designed for moderate heating demands or where a ground source heat exchanger is employed as the low temperature heat source. In the case where a higher temperature lift is required, for example, for an air-source GDSHP unit then the prototype 1 design would be more applicable.

Place, publisher, year, edition, pages
2017.
Keywords [en]
Gas-driven sorption heat pump, sorption module, advanced sorption cycle, resorption, absorption
National Category
Energy Engineering
Research subject
Energy, Forests and Built Environments
Identifiers
URN: urn:nbn:se:du-26830OAI: oai:DiVA.org:du-26830DiVA, id: diva2:1167419
Conference
12th IEA Heat Pump Conference, Rotterdam 2017
Available from: 2017-12-18 Created: 2017-12-18 Last updated: 2017-12-18Bibliographically approved

Open Access in DiVA

fulltext(924 kB)19 downloads
File information
File name FULLTEXT01.pdfFile size 924 kBChecksum SHA-512
fcdaa46afecde78a71f882cdca4e046799ef1265c8fe2835f8ad0edbf611d384c52d4d6c5c1e8a27cf8bbcc5ed458e88c620a279572591f89f57f84d0c875ece
Type fulltextMimetype application/pdf

Authority records BETA

Blackman, Corey

Search in DiVA

By author/editor
Blackman, Corey
By organisation
Energy Technology
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 19 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 170 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf