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Low-temperature hea...
Low-temperature heating in existing Swedish multi-family houses : An assessment of the significance of radiator design and geometry
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- Wang, Qian, 1984- (författare)
- KTH,Strömnings- och klimatteknik
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- Ploskic, Adnan, 1980- (författare)
- KTH,Strömnings- och klimatteknik
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- Holmberg, Sture, 1952- (författare)
- KTH,Strömnings- och klimatteknik
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(creator_code:org_t)
- 2017-02-22
- 2017
- Engelska.
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Ingår i: Science and Technology for the Built Environment. - : TAYLOR & FRANCIS INC. - 2374-4731 .- 2374-474X. ; 23:3, s. 500-511
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The current study evaluates the impacts of radiator designs and geometries. The aim was to map the thermal efficiency and performance differences of studied radiator types. A typical Swedish low-rise, multi-family house was selected to present the analysis. A Swedish climate was employed to evaluate the applicability. The on-site measurements, analytical model, and real-life performance data from radiator manufacturing were applied for the modeling work. Radiator Type 21 (1.2 x 0.4m) showed the highest exergy efficiency; Type 11 (1.2 x 0.45m), the lowest. There is no evidence that Type 22 (adding more convector plate) has a higher thermal efficiency than Type 21, from an engineering perspective, within the climate range of -20 degrees C to 15 degrees C. Baseboard radiators showed a 34% higher exergy performance than the most efficient conventional radiator, with the same surface area, at mean outdoor temperatures during an average heating season in Sweden (-1.3 degrees C). The results also suggest that Type 21 would have higher efficiency than Type 11 during 50% time of the heating season, in severe climate conditions. In the climate of Stockholm, this efficiency advantage was 20%. For the mild climate, Type 11 and Type 21 performed almost the same over the entire heating season.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering (hsv//eng)
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