CAJ | 학술논문

建立了真空管集热的太阳能低温多效蒸发海水淡化系统的数学模型，利用 MATLAB 对其进行了求解。从造水量和耗能量两方面分析了定负荷和变负荷系统的性能。分析结果表明：定负荷时的年造水量稍大于变负荷时的年造水量；定负荷时，在1、2、6、11、12月份需要电辅子系统加热，耗电量大，在其他月份需要冷却子系统排走太阳能供热系统提供的多余热量，增加了单位造水总能耗。变负荷时系统造水量在40%~110%范围内变化，与定负荷系统相比耗电少，对热能利用较充分。
건립료진공관집열적태양능저온다효증발해수담화계통적수학모형，이용 MATLAB 대기진행료구해。종조수량화모능량량방면분석료정부하화변부하계통적성능。분석결과표명：정부하시적년조수량초대우변부하시적년조수량；정부하시，재1、2、6、11、12월빈수요전보자계통가열，모전량대，재기타월빈수요냉각자계통배주태양능공열계통제공적다여열량，증가료단위조수총능모。변부하시계통조수량재40%~110%범위내변화，여정부하계통상비모전소，대열능이용교충분。
Mathematical model of low temperature multi-effect distillation (LT-MED)system with solar energy and evacuated tube collectors is established and calculated under MATLAB platform. Productivity and energy consumption of two systems,fixed load and fluctuant load,were analyzed. When the auxiliary heating system exists and the water yield load is fixed,the accumulated production of the whole year is slightly more than the fluctuation-load production without auxiliary heating system.When the productivity is fixed,auxiliary heating is necessary in January,February,June, November and December.It consumes a great amount of electricity.Meanwhile,in the other months, the external thermal energy from solar collectors is removed by cooling medium and the total energy consumption per unit of productivity increases.For fluctuation-load system,the load ranges from 40% to 110%,and its electricity consumption is relatively less and the heat is fully usable.