Research Article
Energy Analysis of a Complementary Heating System Combining Solar Energy and Coal for a Rural Residential Building in Northwest China
Table 2
Durations and results for
and
for per kg mass of coal.
| /W/m2 | for per kg mass of coal/MJ/kg | Duration | | | Duration | /(kg coal) | /(kg coal) |
| 17:00 pm on 12 to 2:30 am on 13 Dec, 2014 | 32.3 | | 9 to 11 Dec, 2014 | 5.2 | 6.4 | 17:30 to 24:00 pm on 2nd Jan, 2015 | 42.1 | 4 Jan, 2015 | 5.9 | 17:00 to 23:00 pm on 5 Jan, 2015 | 36.1 | 38.1 | 6 Jan, 2015 | 7.2 | 17:00 to 23:00 pm on 5 Jan, 2015 | 44.0 | | 17 Jan, 2015 | 7.5 | 19:50 pm on 15 to 1:50 am on 16 Feb, 2015 | 36.1 | 27 to 28 Jan, 2015 | 7.1 | | | | 31 Jan to 3 Feb, 2015 | 6.5 | | | | 6 Feb, 2015 | 5.5 |
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