Heat transfer analysis on the tool of heat exchanger of plate type

Abstract

North Sulawesi has a geothermal energy source which is renewable energy and can be used as a geothermal power plant or Geothermal power company(PLTP). The Geothermal Power Company(PLTP) is located in Lahendong and is a power plant that is friendly to the surrounding environment because it uses geothermal energy as its resource. In Lahendong Geothermal Power Company(PLTP) unit 2, there are important components used to convert steam into electricity, one of which is a heat exchanger. The research aims to find out the heat transfer coefficient and the effectiveness of the heat exchanger during commissioning with real time, based on operational data and installation data on heat exchangers in the Geothermal Power Company(PLTP) Lahendong Unit 2. From this study the results obtained were the highest heat exchange coefficient at commissioning was 107.47 kW / m2. K and the lowest at real time II was 66.93 kW / m2. K. Furthermore, the effectiveness of the highest heat exchanger occurred at commissioning of 51.96% and the lowest at real time II was 37.19%. From the results obtained, the heat exchanger has decreased both in the heat exchange coefficient and the effectiveness of the heat exchanger. The Increase of the effectiveness of the tool of heat exchanger will affect the increase in the heat transfer coefficient on the tool of heat exchanger.