Geothermal binary plant operation and maintenance systems with Svartsengi power plant a a case study

Abstract

Geothermal energy has been developing as an important power source in the world. Utilization of this underground heat source for electric production becomes more and more important. Geothermal binary plants are the best solution for electricity production in low- and intermediate-temperature fields. It is also possible to utilize the waste heat from steam turbines for electricity production. Organic binary plants are the most common geothermal binary plants, which have lower investment and running costs than hydro or coal power plants. The life of a power plant depends on its availability. Plant capacity must be reliable for a company to stay in business. A smooth operation and maintenance system determines the production capacity of the plant. The control system and manpower skills of a company influence its operation. The simplicity of the motive fluid cycle of organic binary plants aids the operator in running the plant safely. An effective maintenance system allows the plant to be profitable and competitive in the free market. The Svartsengi power plant is located 50 km away from Reykjavik, in Iceland’s active volcanic zone. The power station produces both hot water for heating and electricity in five different plants. The seven Ormat units...