Design of temperature adjusting systems for Litopenaeus vannamei aquaculture

Taking a project in Sanmen Bay, Ninghai County as an example, this paper designs a temperature adjusting system for aquaculture pond water. Through the heat and humidity balance analysis of the aquaculture workshop, when the pond water temperature is maintained at 27 ℃, the indoor air temperature and relative humidity are calculated to be 25 ℃ and 85%, respectively, addressing the current situation of relying on empirical data to determine indoor air temperature and humidity values in engineering applications. The calculation and analysis of the heat consumption of the aquaculture pond water is conducted, confirming the seawater-source heat pump as the cold and heat sources for the temperature adjusting system of the aquaculture pond water. The heat transfer model for heating the aquaculture pond water through circular pipes is established, and the required pipe length and initial investment for different pipe materials are calculated. The anticorrosion design of the temperature adjusting system is presented, stating that in addition to using anticorrosion materials for water pipes, the main components of heat pump units, water pumps, and valves should also be made of anticorrosion materials. This research aims to provide a reference for the design of temperature adjusting systems for aquaculture pond water in similar projects.