Study on operational performance of a solar water heater hanged on the balcony wall under different inclinations in summer

Ding, Xiang, Gao, Wenfeng, Liu, Tao, Lin, Wenxian, and Li, Ming (2013) Study on operational performance of a solar water heater hanged on the balcony wall under different inclinations in summer. Acta Energiae Solaris Sinica, 34 (11). pp. 1895-1902.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

 
8


Abstract

An experimental rig was set up in Kunming for an indirect forced-circulated flat-plate solar water heater hanged on the balcony wall with separate pressure bearing and adjustable inclinations. In this paper, a solar radiation model has been established to estimate the total solar radiation incident on the inclined collector surface, the operational performance of such a solar water heater under different inclinations was measured and analyzed under clear sky conditions in Kunming, and the relations between the system's temperature rise and heat gain and the solar radiation incident on the collector surface were obtained under different inclinations. The results show that in general the system has an excellent performance, outperforming the relevant state standard requirements; under different inclinations, the system's average daily thermal efficiency does not vary considerably and the transient efficiency decreases with time in a specific day; the temperature stratification of the hot water storage tank with separate pressure bearing is not significant. To have a larger heat gain, it is recommended that in Kunming the inclination for the solar water heater hanged on the balcony wall shall be no more than 75°.

Item ID: 32444
Item Type: Article (Research - C1)
ISSN: 0254-0096
Keywords: solar water heater; operational performance; inclination; separate pressure bearing
Related URLs:
Funders: National Natural Science Foundation of China, Yunnan Natural Science Foundation, China
Date Deposited: 12 May 2014 23:48
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 80%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 20%
SEO Codes: 85 ENERGY > 8505 Renewable Energy > 850506 Solar-Thermal Energy @ 100%
Downloads: Total: 8
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page