Volume Changes in DSG Solar Field and Steam Drum due to Changes in Evaporation Conditions from Experience

For process heat supply the integration of solar direct steam generation can be a significant fuel saver. Since 2015 an Industrial Solar GmbH solar field demonstrates safe operation and stable steam supply at the RAM Pharma pharmaceutical company. One mayor component is the steam drum, which buffers volume changes due to evaporation and condensation in the solar field. Operational data of almost two years is analyzed to understand level changes in the steam drum and draw conclusions regarding operation of direct steam generation installations with recirculation concept and to improve the future layout.