| Abstract [eng] |
When maximising production in industry the use of waste heat generated is very important following the circular economy approach, as it is an important efficiency measure. Such goal is foreseen in EU Horizon 2020 iWAYS project (Innovative WAter recoverY Solutions through recycling of heat, materials, and water across multiple sectors), which deals with waste resources appearing in industry such as waste heat, water, and materials. The use of such waste resources would lead industrial companies to the overall reduction of resources consumption and increase of energy efficiency. Authors of this study are involved in iWAYS project activities and data presented are closely related with project activities. In this study the experimental investigations on condensing heat exchanger were performed to better understand fluid behaviour and optimize condensation efficiency. It was investigated the effect of different inlet temperatures on the condensation efficiency. It was found that the condensation efficiency increases with decreasing inlet temperature, which is consistent with previous studies. Additionally, the Nusselt number, which is a measure of the heat transfer rate, also increases with decreasing inlet temperature. These findings suggest that optimizing the inlet temperature can help to improve the performance of condensing heat exchangers for waste heat recovery. |
