Solar energy use for energy savings in dairy processing plants

Anderson, T. N. and Duke, M. 2008, Solar energy use for energy savings in dairy processing plants, IPENZ engineering TreNz, no. 2008-001, pp. 1-9.

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Title Solar energy use for energy savings in dairy processing plants
Author(s) Anderson, T. N.
Duke, M.
Journal name IPENZ engineering TreNz
Issue number 2008-001
Start page 1
End page 9
Publisher Institution of Professional Engineers New Zealand
Place of publication Wellington, New Zealand
Publication date 2008
ISSN 1177-0422
Keyword(s) solar energy
Summary New Zealand is one of the world’s largest producers of dairy products and has a climate with high levels of solar radiation; however, the use of solar energy in the dairy processing industry has received limited attention. An examination of historical records found that the annual peak in New Zealand milk production and processing occurs at a time when solar radiation levels are increasing markedly. An F-Chart analysis was used to simulate the performance of large-area arrays of solar collectors and to determine their suitability for heating and cooling in a dairy processing environment. For the study four types of solar collectors were analysed: glazed flat plates, evacuated tubes, evacuated tubes with CPC reflectors and a building-integrated solar collector under development at the University of Waikato (UoW). It was found that of these echnologies, both flat plate and evacuated tubes with CPC reflectors could make useful heating and cooling contributions. Furthermore, the solar fraction was determined mainly by the collector area to storage volume ratio. Finally, it was found that the UoW building-integrated solar collector could make a significant contribution to energy use in dairies and may be an attractive future technology for the industry.
Language eng
Field of Research 091399 Mechanical Engineering not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
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Document type: Journal Article
Collection: School of Engineering
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