du.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Demonstration of Solar Heating and Cooling System using Sorption Integrated Solar Thermal Collectors
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik. Mälardalen University. (REESBE)
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
Mälardalen University.
2014 (engelsk)Inngår i: EuroSun 2014 / ISES Conference Proceedings (2014), ISES , 2014Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Producing cost-competitive small and medium-sized solar cooling systems is currently a significant challenge. Due to system complexity, extensive engineering, design and equipment costs; the installation costs of solar thermal cooling systems are prohibitively high. In efforts to overcome these limitations, a novel sorption heat pump module has been developed and directly integrated into a solar thermal collector. The module comprises a fully encapsulated sorption tube containing hygroscopic salt sorbent and water as a refrigerant, sealed under vacuum with no moving parts. A 5.6m2 aperture area outdoor laboratory-scale system of sorption module integrated solar collectors was installed in Stockholm, Sweden and evaluated under constant re-cooling and chilled fluid return temperatures in order to assess collector performance. Measured average solar cooling COP was 0.19 with average cooling powers between 120 and 200 Wm-2 collector aperture area. It was observed that average collector cooling power is constant at daily insolation levels above 3.6 kWhm-2 with the cooling energy produced being proportional to solar insolation. For full evaluation of an integrated sorption collector solar heating and cooling system, under the umbrella of a European Union project for technological innovation, a 180 m2 large-scale demonstration system has been installed in Karlstad, Sweden. Results from the installation commissioned in summer 2014 with non-optimised control strategies showed average electrical COP of 10.6 and average cooling powers between 140 and 250 Wm-2 collector aperture area. Optimisation of control strategies, heat transfer fluid flows through the collectors and electrical COP will be carried out in autumn 2014.

sted, utgiver, år, opplag, sider
ISES , 2014.
Emneord [en]
solar cooling, air conditioning, sorption, heat pump. thermo-chemical storage
HSV kategori
Forskningsprogram
Energi, skog och byggd miljö, Reesbe företagsforskarskola
Identifikatorer
URN: urn:nbn:se:du-15619OAI: oai:DiVA.org:du-15619DiVA, id: diva2:746634
Konferanse
EuroSun 2014, Aix-les-Bains (France), 16 – 19 September 2014
Tilgjengelig fra: 2014-09-13 Laget: 2014-09-13 Sist oppdatert: 2015-12-01bibliografisk kontrollert
Inngår i avhandling
1. Evaluation of a thermally driven heat pump for solar heating and cooling applications
Åpne denne publikasjonen i ny fane eller vindu >>Evaluation of a thermally driven heat pump for solar heating and cooling applications
2015 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Exploiting solar energy technology for both heating and cooling purposes has the potential of meeting an appreciable portion of the energy demand in buildings throughout the year. By developing an integrated, multi-purpose solar energy system, that can operate all twelve months of the year, a high utilisation factor can be achieved which translates to more economical systems. However, there are still some techno-economic barriers to the general commercialisation and market penetration of such technologies. These are associated with high system and installation costs, significant system complexity, and lack of knowledge of system implementation and expected performance. A sorption heat pump module that can be integrated directly into a solar thermal collector has thus been developed in order to tackle the aforementioned market barriers. This has been designed for the development of cost-effective pre-engineered solar energy system kits that can provide both heating and cooling.

This thesis summarises the characterisation studies of the operation of individual sorption modules, sorption module integrated solar collectors and a full solar heating and cooling system employing sorption module integrated collectors. Key performance indicators for the individual sorption modules showed cooling delivery for 6 hours at an average power of 40 W and a temperature lift of 21°C. Upon integration of the sorption modules into a solar collector, measured solar radiation energy to cooling energy conversion efficiencies (solar cooling COP) were between 0.10 and 0.25 with average cooling powers between 90 and 200 W/m2 collector aperture area. Further investigations of the sorption module integrated collectors implementation in a full solar heating and cooling system yielded electrical cooling COP ranging from 1.7 to 12.6 with an average of 10.6 for the test period.

Additionally, simulations were performed to determine system energy and cost saving potential for various system sizes over a full year of operation for a 140 m2 single-family dwelling located in Madrid, Spain. Simulations yielded an annual solar fraction of 42% and potential cost savings of €386 per annum for a solar heating and cooling installation employing 20m2 of sorption integrated collectors.

sted, utgiver, år, opplag, sider
Västerås: Mälardalens Högskola, 2015
Serie
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 222
Emneord
solar energy; solar heating and cooling; sorption integrated
HSV kategori
Forskningsprogram
Energi, skog och byggd miljö, Reesbe företagsforskarskola
Identifikatorer
urn:nbn:se:du-20321 (URN)9789174852400 (ISBN)
Presentation
2015-11-26, Paros, Mälardalens Högskola, Västerås, 10:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2015-12-01 Laget: 2015-11-30 Sist oppdatert: 2016-03-16bibliografisk kontrollert

Open Access i DiVA

EuroSun2014(1184 kB)330 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1184 kBChecksum SHA-512
bad512661a70f7dc5e9f365e1ad9256ef584ba2cce2bd4cd6b5a01d2e47fe2aa311148bfb33cf28f5f5c103563275bd55d0243da01255a0db453f2511af45433
Type fulltextMimetype application/pdf

Søk i DiVA

Av forfatter/redaktør
Blackman, CoreyBales, Chris
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 330 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 2223 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf