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題 名 | 地熱系統之活動因子與熱利用研討=A Study on the Activity Index and Thermal Utilization of Geothermal Systems |
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作 者 | 林錦仁; | 書刊名 | 石油季刊 |
卷 期 | 34:2 1998.06[民87.06] |
頁 次 | 頁13-21 |
分類號 | 554.57 |
關鍵詞 | 地熱井; 發電; 活動因子; 蒸汽; 熱焓; Activity index; Steam; Enthalphy; Electric generation; |
語 文 | 中文(Chinese) |
中文摘要 | 地熱活動因子代表地熱系統之潛能層次,或區分為如下:AI= 〔 1- ( Tb-Tm ) ╱( Tb-Tg )〕× 100,式中 AI 是活動因子,Tm 是鑽井所測或預估之地層最高溫度,Tb 是與靜水壓深度相關之飽和溫度,Tb 是假設之世界各地平均地溫梯度 3 ℃ /100m。根據此 活動因子, 地熱系統或地熱井經評估後可區分為如下七組類型之一, AA 100 以上, A 100-80,B 80-60,C 60-40,D 40-20,E 20-0 及 F0 以下。 型式 AA 之地熱田屬超高溫 ,型式 A 之地熱田溫度也很高,已被利用發電的地熱田多此類型,型式 B 之地熱田的溫度 較差, 但仍可做為一般地熱發電廠的經濟發電之用,型式 C 是較差的地熱田,需鑽鑿深井 方有足夠的溫度供發電,但其昂貴的鑽井費用是嚴重的問題。 |
英文摘要 | An avtivity index which indicates the degree of potential of a geothermal system or a geothermal well is proposed here as follows: Ai=[1-(Tb-Tm)/(Tb-Tg)] × 100, where Tm is the maximum temperature measured or estimated, Tb is the saturated temperature corresponding to the integrated hydrostatic assumed temperature at the above depth when the geothermal gradient is the same as the average value for the world, 3 ℃ /100m. Based on this activity index, a geothermal system or a geothermal well can be objectively evaluated and classified in one of the following seven categories: AA above 100, A 100-80, B80-60, C60-40, D40-20, E20-0 and F below 0. Thpe AA fields are characterized by extraordinary high temperatures. type A fields are of high temperature, and most active geothermal fields belong to this type. Type B fields are little less avtive but are still promising for economical electric generation by ordinary power plants. Geothermal fields inferior to Type C may require very deep wells to yield water of sufficient high temperature for electric generation, and drilling costs become a serious problem. |
本系統中英文摘要資訊取自各篇刊載內容。