STUDY IMPLEMENTATION OF WATER JET EJECTOR AS A GAS REMOVAL SYSTEM FOR GEOTHERMAL POWER PLANT

• Main Author: Nuryadin 23116006, Bhakti
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26099
• Institution: Institut Teknologi Bandung

NCG (non condensable gases). Contain of NCG in the condenser causes the <br /> <br /> performance of the condenser in a geothermal plant decreasing. Therefore, NCG <br /> <br /> has to be removed from the condenser to keep its low pressure continuously. The <br /> <br /> conventional gas removal system (GRS) commonly used in the geothermal power <br /> <br /> plants are steam jet ejector (SJE), liquid ring vacuum pump (LRVP) or a <br /> <br /> combination of them. Steam usage in the SJE is large enough so that it reduces the <br /> <br /> potential steam to be converted into electricity. On the other side, the condenser <br /> <br /> also produces water as a result of condensation of the steam. Possibility of using <br /> <br /> the water to substitute the motive steam in the SJE will be investigated in this <br /> <br /> paper. If the water can replace the steam then the electricity production of the <br /> <br /> geothermal power plants can be increased. The study of water jet ejector (WJE) is <br /> <br /> very important to be conducted. The experimental apparatus was developed to <br /> <br /> confirm the feasibility of available WJE in the market for the geothermal <br /> <br /> implementation. This research is intended as an effort to utilize water as the main <br /> <br /> driver of GRS to know the potential of the WJE by conducting laboratory scale <br /> <br /> experiment. Based on experimental result, simulation of net power generation and <br /> <br /> techno economic confirmed that the combination of WJE and LRVP can be <br /> <br /> implemented at PLTP 3 MW as a pilot project. Potensial saving motive steam <br /> <br /> about 0.23 MW if the steam convert to electricity production with payback <br /> <br /> periode under 5 years. The best result for net power generation and techno <br /> <br /> economic is one stage LRVP. <br /> <br /> Keywords: GPP, NCG, GRS, Water Jet Ejector