# A proportional–integral (PI) law based variable speed technology for temperature control in indirect evaporative cooling system

> Research article (Applied Energy, 2019) · cited 37× · AI/ML

**Wikidata**: [openalex:W2946795310](https://www.wikidata.org/wiki/openalex:W2946795310)  
**Source**: https://4ort.xyz/entity/a-proportionalintegral-pi-law-based-variable-speed-technology-for-temperature-control-in-indirect-evaporative-cooling-sy