#TITLE_ALTERNATIVE#

• Main Author: ALVIN SIHOMBING (NIM : 10207097); Dosen Pembimbing : Dr.Eng.Enjang Jaenal Mustopa
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/14826
• Institution: Institut Teknologi Bandung

Geothermal energy is one of the biggest potential alternative energy to developed as a solution for electric energy and other benefits on supporting continuing national development and public security. <br /> <br /> <br /> Lainea Geothermal Field is located on non vulcanic region, sediment and metamorphic environment, usually has specific characteristic like no solfatar or fumarol, but it has high temperature. Lainea Geothermal System characterized with emerge of high temperature water manifestation, which 80.8 oC as highest temperature, neutral pH degree, and rock alternation. Geothermal fluid system on Lainea has bicarbonat type which lies on immature water zone. Reservoir temperature measured with geotermoneter Na-K-Ca (200 oC) calculation system which include moderate enthalpy to high enthalpy. Lainea Geothermal Field has extensive infiltration area which has function as meteoric water suppy into aquifer. All manifestation occur on uplow Lainea Geothermal System. Estimation value for reservoir temperature based on geothermometer Na-K-Ca plot result which is 200 oC and no boiling found on hot water. <br /> <br /> <br /> The estimation of electric potention on Lainea Geothermal potention established use volumetric lumped parameter method resulting 71 MWe for possible reserve class during 30 years exploitation time. With Monte Carlo simulation, obtained conservative electricity potention about 44 MWe, while moderate electricity potention is 93MWe and optimist potention about 109 MWe. <br /> <br /> <br /> The most sensitive parameter of Lainea Geothermal reservoir is initial temperature. The others, which also sensitive, are recovery factor, reservoir thickness, reservoir space area, and electric convertion factor. Rock porosity is a “not sensitive” parameter if it compared with the others.