Designing and Maintenance of Pressure and Heat Loss in Production Pipeline to Optimize of Electric Power at Lumut Balai Geothermal Field Indonesia
Muh.Yustin KAMAH, Gathuk WIDIYANTO
[PT. Pertamina Geothermal Energy, Indonesia]
Most conventional geothermal wells produce a two-phase flow, namely water and steam. At the head of the fluid well moves inside the piping system to the separator where steam and water are separated. Piping systems from wells to separators are usually planned as close as possible. In planning a two-phase flow pipe from the well to the separator it is attempted to have the permitted speed and also avoid the slug flow pattern that can cause the water hammer To generate a geothermal power plant to turn the steam turbine is required. Power generated from this vapor is influenced by the energy in the fluid. The pressure and temperature of the steam are straight with the energy that will be produced. To optimize the energy generated inside the turbine, it must be designed so that along the pipe production line there will be a lot of pressure and temperature. Loss can be engineered by changing the flow pattern inside the pipe. Besides that the influence of roughness and diameter of the pipe will also affect the amount of pressure loss that occurs. In addition to pressure loss, energy decline is also strongly affected by heat loss. Heat loss and pressure on geothermal fluid flow from geothermal production wells to power plants is a problem that is often faced in geothermal production. Heat loss along the pipe causes condensation of water vapor which will cause damage to the turbine. During the process of distributing geothermal fluid, heat and pressure loss will occur, so that the energy value of the fluid at the point before entering the turbine will decrease. Most pressure losses occur due to fluid friction with the pipe walls and elevation differences. The heat loss that occurs is caused by differences in temperature inside and outside the pipe, where geothermal fluid is high temperature while the outside temperature is relatively low. Therefore the design and planning of the flow pipe must be calculated as well as possible.
|        Topic: Production Engineering, Steam Gathering Systems||Paper Number: 25016|