# Real-time energy-efficient operation of a dedicated mechanical subcooling based transcritical CO2 heat pump water heater via multi-input single-output extreme seeking control

> Research article (International Journal of Refrigeration, 2022) · cited 13× · AI/ML

**Wikidata**: [openalex:W4285601895](https://www.wikidata.org/wiki/openalex:W4285601895)  
**Source**: https://4ort.xyz/entity/real-time-energy-efficient-operation-of-a-dedicated-mechanical-subcooling-based-transcritical-co2-heat-pump-water-heater