Annular thermoelectric generator (ATEG) has not been commercialized yet and many studies are required to identify its characteristics from different viewpoints. Most recently, segmented annular thermoelectric was proposed as an efficient structure for annular thermoelectric in which each leg of thermoelectric (n-type and p-type) is made of two different materials termed low temperature material and high temperature material. Although a few of investigations have reported thermal behavior of segmented annular thermoelectric, no exergetic and economic analysis have been performed yet on segmented annular thermoelectric generators. Exergetic and economic evaluations are significant criteria on marketing area of any industrial product. Hence, in this study, a comparison between segmented and non-segmented annular thermoelectric is first presented and then the impacts of the main parameters of segmented annular thermoelectric generator on energy, exergy and economic factors (including output power, conversion efficiency, exergy efficiency and cost per unit of output power) are comprehensively investigated and presented via validated 3-D numerical simulation method. The results showed that the segmented thermoelectric is more efficient than the non-segmented thermoelectric from the viewpoint of all said criteria. A peak point was observed for the curve behavior of most geometric characteristics of the segmented annular thermoelectric generator which is remarkable and discussed in this paper.

环形热电发电机（ATEG）尚未商业化，需要进行许多研究才能从不同的角度识别其特性。最近，分段环形热电被提出作为环形热电的有效结构，其中热电的每个分支（n型和p型）由两种不同的材料制成，分别称为低温材料和高温材料。尽管一些研究报告了分段环形热电发电机的热行为，但尚未对分段环形热电发电机进行充分的经济分析。全面的经济评估是任何工业产品营销领域的重要标准。因此，在这项研究中 首先对分段式和非分段式环形热电进行了比较，然后对分段式环形热电发电机的主要参数对能源，火用和经济因素（包括输出功率，转换效率，火用效率和单位输出功率成本）的影响进行了比较。 ）是经过验证的3-D数值模拟方法进行了全面研究和提出。结果表明，从所有所述标准的观点来看，分段热电比非分段热电更有效。在分段环形热电发电机的大多数几何特征的曲线行为中观察到一个峰值，这一点是值得注意的，并在本文中进行了讨论。利用经验证的3-D数值模拟方法，对火用和经济因素（包括输出功率，转换效率，火用效率和单位输出功率成本）进行了全面研究，并提出了建议。结果表明，从所有所述标准的观点来看，分段热电比非分段热电更有效。在分段环形热电发电机的大多数几何特性的曲线行为中观察到一个峰值点，这在本文中是值得关注和讨论的。利用经验证的3-D数值模拟方法，对火用和经济因素（包括输出功率，转换效率，火用效率和单位输出功率成本）进行了全面研究，并提出了建议。结果表明，从所有所述标准的观点来看，分段热电比非分段热电更有效。在分段环形热电发电机的大多数几何特性的曲线行为中观察到一个峰值点，这在本文中是值得关注和讨论的。结果表明，从所有所述标准的观点来看，分段热电比非分段热电更有效。在分段环形热电发电机的大多数几何特征的曲线行为中观察到一个峰值，这一点是值得注意的，并在本文中进行了讨论。结果表明，从所有所述标准的观点来看，分段热电比非分段热电更有效。在分段环形热电发电机的大多数几何特征的曲线行为中观察到一个峰值，这一点是值得注意的，并在本文中进行了讨论。