EVALUATIONS OF THERMOSYPHON SOLAR THERMAL WATER HEATERS PART 1: LONG TERM FIELD TEST OF THREE OPEN CIRCUIT SOLAR WATER HEATERS

Government intervention in the form of financial incentives is crucial for translating customer choice into a larger market share for solar thermal applications. The lengthy subsidy programs for solar water heaters in Taiwan have expanded the local market. On a remote island (Kinmen County), the area of solar collectors that are installed per 1000 inhabitants is 192.9 square meters. This study investigates a market-driven mechanism in terms of disposable income, household structure, building type and financial viability. The dual subsidy programs appear to have distorted the local market. The cumulative energy savings for solar water heaters that are installed is misleading because the systems are over-designed and there is a high replacement rate (or shorter service period).

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Simulation of the long term performance of thermosyphon solar water heaters

Solar Energy ◽

10.1016/0038-092x(84)90006-9 ◽

1984 ◽

Vol 33 (6) ◽

pp. 515-526 ◽

Cited By ~ 36

Author(s):

G.L. Morrison ◽

H.N. Tran

Keyword(s):

Solar Water ◽

Water Heaters ◽

Solar Water Heaters ◽

Long Term Performance ◽

Term Performance

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A lesson learned from the long-term subsidy program for solar water heaters in Taiwan

Sustainable Cities and Society ◽

10.1016/j.scs.2018.06.012 ◽

2018 ◽

Vol 41 ◽

pp. 810-815 ◽

Cited By ~ 5

Author(s):

Keh-Chin Chang ◽

Wei-Min Lin ◽

Kung-Ming Chung

Keyword(s):

Solar Water ◽

Water Heaters ◽

Subsidy Program ◽

Solar Water Heaters

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Analysis of field-test data from domestic solar-water heaters in the southern United States, period through May 1982

10.2172/7148756 ◽

1982 ◽

Author(s):

W. Jones ◽

R. Jacobs

Keyword(s):

United States ◽

Field Test ◽

Test Data ◽

Southern United States ◽

Solar Water ◽

Water Heaters ◽

Solar Water Heaters

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The Input-Output Model for Solar Water Heaters: Model Errors and Long-Term Performance Estimate

Journal of Solar Energy Engineering ◽

10.1115/1.2930475 ◽

1990 ◽

Vol 112 (3) ◽

pp. 161-168

Author(s):

L. Kadi ◽

B. Bourges ◽

J. Adnot

Keyword(s):

Test Method ◽

Model Errors ◽

Input Output ◽

Solar Water ◽

Water Heaters ◽

Performance Estimate ◽

Solar Water Heaters ◽

Long Term Performance ◽

Term Performance

Based on the experimentally observed linear relationship between the daily collected energy and the daily insolation, the development of a test method for the performance rating of solar water heaters is studied using both an analytical modeling of the daily performance and detailed simulation. This analysis has shown the existence of a general linear correlation between daily performance and external conditions (daily irradiation, ambient temperature, main’s water temperature, and storage initial temperature). Two approaches appeared possible for the long-term performance estimate and, for its simplicity, the statistical one was chosen for the definition of the European test method for solar water heaters, also known as the input-output test method.

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