Abstract
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Abstract The cost s of geothermal exploration are very high because technology is still imported from other countries. The local busines s player s in the geothermal sector do not have the ability to compete with global companies. To reduce cost s, we need to develop our own equipment with competitive price s . Here in Indonesia, we have started to design a prototype of temperature logging tools for geothermal prospecting area s . This equipment can be used to detect temperature versus depth variation s . To measure the thermal gradient, the platinum resistor temperature sensor is moved slowly down along the borehole. The displacement along the borehole is measured by a rotary encoder. This system is controlled by a 16-bit H8/3069F microcontroller. The acquired temperature data is displayed on a PC monitor using a Python Graphical User Interface. The system has been already tested in the Gunung Pancar geothermal prospect area in Bogor. Abstrak Perancangan Prototipe Alat Logging Temperatur untuk Area Prospek Panasbumi . Biaya eksplorasi panasbumi tinggi dikarenakan teknologi yang masih diimpor dari luar negeri. Akibatnya, pelaku bisnis panasbumi dari dalam negeri sulit bersaing dengan perusahaan asing bermodal besar. Dalam upaya menekan biaya eksplorasi, kami merancang alat ukur gradien suhu di lubang sumur eksplorasi panasbumi dengan biaya produksi yang relatif terjangkau. Alat ini berfungsi untuk mengukur peningkatan suhu sebagai variasi terhadap kedalaman. Untuk mengukur gradien suhu, sensor Pt-100 diturunkan ke dalam lubang sumur secara perlahan-lahan. Penambahan kedalaman posisi sensor Pt- 100 diukur menggunakan sensor rotary encoder . Alat ini dikendalikan sepenuhnya oleh mikrokontroler 16-bit H8/3069F. Data suhu hasil pengukuran ditampilkan pada layar monitor menggunakan Graphical-User Interface dengan bahasa pemrograman Python. Alat ukur gradien suhu ini telah diujicoba di daerah prospek panasbumi Gunung Pancar, Bogor. Keywords: borehole, geothermal, gradient temperature, logging, prototype
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