Research Of Absorption Ice-Maker System Utilizing Diesel Surplus Energy

Recently, the cost of fishes increases gradually due to the rise of oil price and the lack of offshore fish resources. In order to save energy resource, protect environment and overcome some disadvantages that compression refrigeration systems used on most present vessels, we proposed to install an absorption refrigeration system with a new working pair of TFE/TEGDME(2,2,2 Trifiuoroethanol/Tetraethyleneglycol Dimethylether) on a vessel. For this reason, we investigated a lot of simulation research on heat and mass transfer of falling film absorption in a stationary plate absorber and inside standpipe absorber summarized in this paper. The main work is as follows:1. This paper compiles procedures in VB according to the calculation formulas of waste heat and thermodynamic properties parameter of TFE/TEGDME referring to some research work.2. We compare with the condition calculations among the single effect cycle, the basic GAX cycle, the mid -pressure double-effect cascade cycle, common double effect cycle, triple effect refrigeration cycle with TFE/TEGDME as working fluid and choose the single effect cycle to be used in this experiment ultimately.3. We adopt the CFD software to simulate the adsorption process whose results demonstrate that general model simulates the impact of a absorption effect according to variation of temperature of cooling water and inlet weak solution accurately.4. The simulation and calculation results tell us that the absorption reach the best effect when the temperature of cooling water is lower than 35℃and the value of COP reduced rapidly with the decrease of evaporation temperature.5. A lot of simulation finished and the results of simulation are well accordant with the calculation results.