Parabolic Trough Concentrators (PTC) and Linear Fresnel Concentrators (LFC) are widely used for solar thermal applications. LFC's were developed as an alternative to counter the high manufacturing cost of parabolic collectors. The manufacturing cost of LFC is lower but it either reduces the output power or is larger in size. A hybrid collector combining the beneficial features of both PTC and LFC, which is compact and efficient, is proposed in this paper. Discrete Linear Fresnel plates are pivoted with their midpoints lying on a parabola and the performance is compared with LFC and PTC. A mathematical model is developed to calculate the projected area of the hybrid solar collector. The optical performance is estimated, considering the shading, blocking, cosine effect and end loss of the mirrors and is compared with a similar sized PTC and LFC. The optical performance at 8 a.m. for a hybrid collector is 58% of a similar sized PTC. The optical performance ratio increases with time, reaching a maximum of 93% at noon and decreases thereafter reaching 58% by 4 p.m. The comparison with LFC shows that the hybrid collector performs better than LFC by 5% between 10 a.m. and 2p.m and only 2% when averaged over the day. This has been found to increase to about 3.5% with modifications in hybrid collector design. The results were also calculated by solar ray tracing using SolTrace and were found to be in good agreement with the proposed model.

抛物线槽式聚光器 (PTC) 和线性菲涅尔聚光器 (LFC) 广泛用于太阳能热应用。LFC 的开发是为了解决抛物线收集器的高制造成本。LFC 的制造成本较低，但它要么降低了输出功率，要么尺寸更大。本文提出了一种结合了 PTC 和 LFC 的优点的混合收集器，它既紧凑又高效。离散线性菲涅尔板旋转，其中点位于抛物线上，并将性能与 LFC 和 PTC 进行比较。开发了一个数学模型来计算混合太阳能集热器的投影面积。考虑反射镜的阴影、阻挡、余弦效应和端部损耗，估计光学性能，并与类似尺寸的 PTC 和 LFC 进行比较。混合收集器在上午 8 点的光学性能是类似尺寸 PTC 的 58%。光学性能比随时间增加，中午达到最大值 93%，之后下降到下午 4 点达到 58% 与 LFC 的比较表明，混合集热器在上午 10 点和下午 2 点之间比 LFC 性能好 5%一天平均为 2%。已经发现，随着混合收集器设计的修改，这增加到大约 3.5%。还使用 SolTrace 通过太阳光线追踪计算了结果，发现结果与所提出的模型非常吻合。与 LFC 的比较表明，在上午 10 点到下午 2 点之间，混合收集器的性能比 LFC 好 5%，而在一天中的平均值仅为 2%。已经发现，随着混合收集器设计的修改，这增加到大约 3.5%。还使用 SolTrace 通过太阳光线追踪计算了结果，发现结果与所提出的模型非常吻合。与 LFC 的比较表明，在上午 10 点到下午 2 点之间，混合收集器的性能比 LFC 好 5%，而在一天中的平均值仅为 2%。已经发现，随着混合收集器设计的修改，这增加到大约 3.5%。还使用 SolTrace 通过太阳光线追踪计算了结果，发现结果与所提出的模型非常吻合。