Cheh Plast Ltd., founded in 2000, is a certified manufacturer and authorized Rehau partner with 67 employees, producing aluminum and PVC joinery, ventilated facades, glass constructions, and roofing for clients in Bulgaria and abroad. The company faced high energy demand and uneven heating in its production halls, as traditional systems caused temperature imbalances and inefficiency. In 2016, it introduced an industrial floor heating system with optimized insulation and is now exploring AI-based monitoring to further enhance energy performance.
Outcomes and Impact
- Uniform heating at 16∘C across the hall, ensuring comfort and compliance with machinery automation requirements.
- Elimination of heat stratification (no heat trapped under the roof).
- Annual heating energy consumption: 123.6 kWh/m2 (166,307 kWh/a).
- Primary energy from gas: 135.96 kWh/m2; circulation pump and boiler electricity: 1.2 kWh/m2.
- Carbon footprint: 33.59 tons CO2/year (gas) + 1.22 tons CO2/year (electricity).
- System successfully operating for 7 years, demonstrating reliability and long-term sustainability.
- Al potential: Adding sensors and machine learning models could further cut energy use by predicting demand, optimizing system response, and integrating renewables.
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