本研究針對太陽能驅動氣隔式薄膜蒸餾海水淡化系統進行單位產水價格最適化分析，並發現位於赤道之馬來西亞為系統最佳操作區域，其最低單位產水價格為$ 2.24 /m3，而此成本與目前商業化逆滲透(RO)之單位產水價格$ 0.6~1.2 /m3相比還是非常昂貴，故針對馬來西亞最低單位產水價格進行分析，發現太陽能集熱器成本與薄膜成本約占系統總成本的70%，為降低單位產水價格至$ 1.2 /m3須改良太陽能集熱器與薄膜之效率與成本，故本研究將真空平板式太陽能集熱器(VFPSC)與拋物面槽式太陽能集熱器(PTC)取代原先的平板式太陽能集熱器(FPSC)， PTFE薄膜被廣泛應用於薄膜蒸餾海水淡化系統中，相較於其他種類的薄膜(PVDF、PP…)它具有較高的通量，但是其成本較高，因此本研究為評估系統商業化能力，使用PP薄膜取代PTFE薄膜，並進行程序最適化分析，結果顯示馬來西亞的最低單位產水價格約為$ 1.04 /m3。 In this study, optimization of the unit water production cost (UPC) of solar driven air gap membrane distillation in desalination systems was investigated. Malaysia that located near the equator is the best operating area and the UPC is $ 2.24 /m3.The result is more expensive than UPC of reverse osmosis ($ 0.6~1.2 /m3). For the analysis shows the capital cost of the solar collector and AGMD accont for about 70% of the total annual cost. Therefore, the efficiency and cost of the solar collector and the membrane must be improved. Flat plate solar collectors (FPSC) with vacuum flat plate solar collectors (VFPSC) and parabolic trough collector (PTC) were used to replace the FPSC. PTFE membrane gives higher water permeation flux with higher capital cost compared to other types of membranes (e.g., PVDF, PP…etc.). PP membrane was employed to replace PTFE membrane.The optimal systems produces water with UPC of $ 1.04 /m3.
