The Latest Development in Geothermal Utilization in Tianjin, China

Abstract

This report presents the latest development of geothermal utilization in Tianjin, the largest user of low temperature geothermal energy in China. This report first gives information about the test carried out in a building heated by low temperature geothermal water of slightly more that 50°C. As a result of the test, data and information have been gathered in terms of heat consumption of a building heated by low temperature geothermal water, corrosion and scaling caused by geothermal water in the equipment, and variations in the level and temperature of the geothermal water at the wellhead during a constant heating period, The information shows that the low temperature geothermal water is well suited for space heating and as a result extensive utilization if proposed for Tianjin. The report then gives a brief introduction to the extensive utilization of geothermal energy for space heating in the Dagang District, and for agricultural greenhouses. Since geothermal energy has been put into use on a large scale in Tianjin, the authors believe that further utilization of geothermal energy in Tianjin will be possible on the basis of scientific tests, high level techniques and advanced equipment.