Speaker
Description
Liquefied natural gas (LNG), recognized as one of the cleanest fossil fuels, is currently the most rapidly expanding primary energy source, offering abundant cold energy during the gasification process. The integration of liquid air energy storage (LAES) with LNG cold energy utilization not only facilitates the efficient utilization of LNG cold energy but also enhances the energy efficiency of the LAES system. However, the desynchronization of the regasification process at the LNG receiving station and the cold energy utilization process results in an imbalance between the supply and demand of LNG cold energy, thereby limiting the scale and efficiency of cold energy utilization. In this study, we propose a system to stabilize the utilization of LNG cold energy. The system employs the intermediate storage unit to preserve the cold energy from the LNG, which is subsequently channeled to the LAES. The process is designed to integrate cold energy from LNG receiving stations and enhance the efficiency of LAES. In this study, we conduct detailed calculations and discussions on the system using a developed composite thermodynamic model. The effect of different parameters such as the compressor inlet temperature, liquefaction rate, and expansion pressure were analyzed and compared. This research offers a practical example of LNG cold energy utilization, contributing to the advancement of industrial applications.
| Submitters Country | China |
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