CAJ | 학술논문

建立了太阳能斯特林机热交换器流阻损失方程，确定了其内工质流速和质量流率与转角的内在联系，开展了热交换器动态流阻损失数值计算，得到了回热器、加热器和冷却器动态流阻损失特性及其与热交换器参数的关系．研究表明：回热器、冷却器、加热器流阻功率损失比例分别为65．5％，19％和15．5％．回热器内流阻损失随丝网目数的增加而增大，随丝网孔隙率的增加而减小；冷却器内正、反向流阻损失峰值分别出现在转角100°和270°附近，且反向峰值更大；加热器内流阻损失曲线在横轴两侧不对称，正、反向峰值分别在转角144°和300°位置取得，且正向峰值大于反向峰值；同时在加热器和冷却器中，管径对流阻损失的影响均更显著．
건립료태양능사특림궤열교환기류조손실방정，학정료기내공질류속화질량류솔여전각적내재련계，개전료열교환기동태류조손실수치계산，득도료회열기、가열기화냉각기동태류조손실특성급기여열교환기삼수적관계．연구표명：회열기、냉각기、가열기류조공솔손실비례분별위65．5％，19％화15．5％．회열기내류조손실수사망목수적증가이증대，수사망공극솔적증가이감소；냉각기내정、반향류조손실봉치분별출현재전각100°화270°부근，차반향봉치경대；가열기내류조손실곡선재횡축량측불대칭，정、반향봉치분별재전각144°화300°위치취득，차정향봉치대우반향봉치；동시재가열기화냉각기중，관경대류조손실적영향균경현저．
The flow resistance loss equations were built,that of solar power Stirling engine heat exchanger, and internal connection between the working medium speed was determined,mass flow rate and rotation angle, the heat exchanger numerical calculation of dynamic flow resistance loss was carried out,and the relationship was obtained that between different parameters and dynamic flow resistance loss in heat exchanger.Research shows that the mechanical power loss in regenerator,heater and cooler each accounted for 65.5%,19% and 15.5%. In regenerator the flow resistance loss increase with the rise of screen mesh number,decreases with the rise of mesh porosity.The peak of positive and reverse flow resistance loss in cooler appeared near the angle 100°and 270°respectively,and reverse is greater than the positive.Inside the heater,flow resistance loss curve asymmetry on each side of the horizontal axis,positive and reverse peak at angle 144°and 300°respectively, and positive peak is greater than the reverse.Effect of pipe diameter on the flow resistance loss both in the heater and cooler are more significant.