Outdoor testing of evacuated-tube heat-pipe solar collectors

K. C. Ng; C. Yap; T. H. Khor

doi:10.1243/0954408001530182

Outdoor testing of evacuated-tube heat-pipe solar collectors

K. C. Ng, C. Yap^*, T. H. Khor

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The paper presents the steady state performance of two types of commercially available evacuated-tube heat-pipe solar collector that were tested under the meteorological conditions of Singapore. The tests were made in arrays of collectors in contrast with the normal tests performed under controlled laboratory conditions. A theoritical model is also presented to predict the collector efficiency as well as the collectable energy during a steady state test. Within the range of expected coolant temperatures, the efficiency and the heat loss coefficient of collectors are measured and a linear expression can adequately depict their characteristics.

Original language	English (US)
Pages (from-to)	23-30
Number of pages	8
Journal	Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
Volume	214
Issue number	1
DOIs	https://doi.org/10.1243/0954408001530182
State	Published - 2000
Externally published	Yes

Keywords

Efficiency prediction
Evacuated-tube collectors
Heat-pipe collectors
Steady state method

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1243/0954408001530182

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abstract = "The paper presents the steady state performance of two types of commercially available evacuated-tube heat-pipe solar collector that were tested under the meteorological conditions of Singapore. The tests were made in arrays of collectors in contrast with the normal tests performed under controlled laboratory conditions. A theoritical model is also presented to predict the collector efficiency as well as the collectable energy during a steady state test. Within the range of expected coolant temperatures, the efficiency and the heat loss coefficient of collectors are measured and a linear expression can adequately depict their characteristics.",

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KW - Evacuated-tube collectors

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KW - Steady state method

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Outdoor testing of evacuated-tube heat-pipe solar collectors

Abstract

Keywords

ASJC Scopus subject areas

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