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A theoretical investigation of a combined wall-roof solar chimney to improve night time ventilation in buildings is presented. A spreadsheet computer program is used for the parametric study to find out the optimum configuration of the wall-roof chimney. It has been reported that a roof solar chimney alone can induce an air flow rate of 0.81<space>m 3 /s when the average incident solar...
The paper presents two low-cost photovoltaic utilization schemes (1-50 kW) for ventilation and air conditioning loads. Both schemes can be controlled by novel dynamic on-line power tracking regulator. This ensures maximum power utilization and energy efficiency under varying conditions of solar insolation levels. The system could be used to conserve electric energy through the decrease of electric...
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