Experimental and numerical analysis is arranged with exergy destruction to evaluate thermal performance of system on nanofluid flow in tube with single and double strip helical screw inserts at different values of twist ratio in laminar flow regime. CFD analysis has occurred on the fluent workbench of ANSYS software. The Nusselt number attained enhancement with the flow of nanofluid in double strip helical screw inserts as compared with single strip helical screw inserts at decreasing values of twist ratio and increasing values of Reynolds number. Maximum enhancement of 421% is found with Nusselt number in the flow of nanofluid in tube with double strip helical screw insert at 1.5 of twist ratio and lower value of Reynolds number as compared with the flow of water in plain tube. Common correlations of Nusselt number and friction factor are generated. Exergy destruction number is attained less than one value for both types of inserts at different values of twist ratio and Reynolds number, whereas attained lower value with the flow of nanofluid in tube with double strip helical screw insert at twist ratio of 1.5 and low value of Reynolds number. Heat transfer enhancement number is attained more than one value for both types of inserts with different values of twist ratio and Reynolds number, whereas double strip helical screw inserts attained maximum value at twist ratio of 1.5 in the range of Reynolds number. Therefore, double strip helical screw inserts are the best inserts as compared with single strip helical screw inserts to compact the size of heat exchangers, whereby size of many thermal applications could be compact such as solar water heater, electronic cooling devices, automobile radiator, power plants etc.

进行实验和数值分析，并用能级破坏进行评估，以评估系统在层流状态下具有不同扭曲比值的单条和双条螺旋形螺旋嵌件在管中的纳米流体流动上的热性能。在流畅的ANSYS软件工作台上进行了CFD分析。与单条螺旋螺纹插入件相比，在减小扭曲比值和增加雷诺数值的情况下，与单条螺旋螺纹插入件相比，Nusselt数随着纳米流体在双条螺旋插入物中的流动而增强。与缠绕在普通管中的水流相比，在扭曲比为1.5的双流体螺旋插入管中的纳米流体流中，Nusselt数最大增强了421％，雷诺数值更低。产生了努塞尔数和摩擦系数的共同关系。对于两种类型的插入物，在不同的扭曲比和雷诺数下，火用破坏数均小于一个值，而在双螺旋螺旋插入物下，纳米流体在扭曲比为1.5时，在管中的纳米流体流量达到较低值。雷诺数。对于具有不同的扭曲比和雷诺数的两种类型的刀片，传热增强数均达到一个以上的值，而双条螺旋螺杆刀片在雷诺数范围内的扭曲比为1.5时达到最大值。因此，与单条螺旋螺丝插入件相比，双条螺旋螺丝插入件是最好的插入件，以缩小热交换器的尺寸，