Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4990630 | Applied Thermal Engineering | 2017 | 42 Pages |
Abstract
The endeavor of the paper is the study the feasibility of using a locally made daily solar storage system, SSS, for domestic hot water supply especially in urban and isolated households. In order to evaluate the system efficiency during the charging and discharging periods an experimental and a numeric investigation were simultaneously achieved. Results showed that the daily energy efficiency of the energy stored in the HSU ranged from 30 to 49.5% whereas the daily exergy efficiency ranged from 19 to 27%. The results show also that for wet sand the quantity of daily destocked energy varies in the array of 1.75-0.8Â kWÂ h. The results showed that 75% of the total DHW requirements can be achieved from the heat storage system during the night. The results of the economic analysis shows that the SSS, the annual energy kept (YES) and the payback period (PBP) were about 1317Â kWÂ h/year and 4Â years based on electric water heater and about 460Â m3 gas saving and 3.5Â years based on gas water heater, respectively.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Majdi Hazami, Sami Kooli, Nabiha Naili, Farah Mehdaoui, AmenAllah Guizani,