Experiment Of Heat Preservation & Analysis Of The Run Economic Quality On The Liquefid Carbon Dioxide Refrigerator Car

In this paper, the author does some experimental studies of heat preservation quality and analysis of the run economic capability on the liquefid carbon dioxide(LCD) refrigerator car. Chap.1 generally introduces the present study actuality of refrigerator car; Chap.2 analyzes the flow characteristic of LCD in a capillary; then the author does some experiments and analyzes the result of them in Chap.3~4. Analyzes the run economic quality of the LCD refrigerator car in Chap.5. The author mainly studies some effects on the preservation quality of the LCD refrigerator car and the flow characteristic of LCD in a capillary. Through the experimental study, firstly gains some important data of the preservation quality of the LCD refrigerator car and the flow characteristic of LCD in a capillary. Then takes the lead in analyzes those data; regresses experimental correlative formula: , its useful range is: 1.8～2.2MPa, length≥1.0m,interor diameter≤2.0mm of a capillary.. Through the economic capability of those three ways of refrigeration from initial investment, depreciation and maintenance costs of equipment, as well as the fee of energy consumption, the paper sums up that the run fee of mechanical refrigerator car is 42% higher than that of LCD refrigerator car; and the run fee of cooling board is 28% higher than it.