# A General fractional-order heat transfer model for Photovoltaic/Thermal hybrid systems and its observer design

> Research article (Energy Procedia, 2017) · cited 11× · AI/ML

**Wikidata**: [openalex:W2779063345](https://www.wikidata.org/wiki/openalex:W2779063345)  
**Source**: https://4ort.xyz/entity/a-general-fractional-order-heat-transfer-model-for-photovoltaic-thermal-hybrid-systems-and-its-observer-design