Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/32778
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    Title: 利用溫泉井水溫觀測資料推估地層導熱係數之研究
    Using a 1D numerical temperature recovery model to estimate in-situ thermal diffusivity by an up-welling heat source in an artesian well
    Authors: 陳文福
    Contributors: 嘉南藥理科技大學觀光事業管理系
    Keywords: 熱擴散係數
    溫泉
    垂直井溫
    thermal conductivity
    hot spring
    temperature-depth profile
    Date: 2019
    Issue Date: 2020-11-16 15:07:38 (UTC+8)
    Abstract: 地層導熱係數是地下傳熱的基本重要控制因素,溫泉觀測井常有自湧現象,因而產生溫度的變化,利用此溫度差,可推求地層導熱係數。本計畫擬先在礁溪溫泉進行現地地層導熱係數研究,此方法確立後也可應用於其他溫泉區,各溫泉區或地熱區之開發,其溫度變化乃受到地層導熱係數之控制,了解地層導熱係數之空間分布,為溫泉地熱開發管理的基礎。
    The determination of thermal diffusivity is a pre-requisite for geothermal site characterization and utilization. The temperature recovery (TR) method is a popular method for determining in-situ thermal conductivity together with the thermal response test and thermal conductivity probe methods. To determine in-situ thermal properties of the subsurface following a thermal disturbance produced by drilling processes or a heating cable within a borehole, the TR method is used to record decaying temperatures during the recovery period. However, to date, no studies exist to determine thermal diffusivity using up-welling water within a well. In this study, we introduce a 1D numerical method for estimating in-situ thermal diffusivity of the subsurface using up-welling thermal water as a heat source within an artesian well. Our numerical model includes parameters for the position of a sensor within a borehole, as well as for the thermal properties of a well casing and an annulus.
    Relation: 計畫編號:MOEAWRA1080323
    計畫年度:108
    執行起迄:2019-03~2019-10
    Appears in Collections:[Dept. of Tourism Management] Other Project

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