Performance Assessment of a CO2-Based Demand-Controlled Frost Resilient Dual-Core Energy Recovery Ventilation System for Northern Housing
Publication: Cold Regions Engineering 2024: Sustainable and Resilient Engineering Solutions for Changing Cold Regions
ABSTRACT
To better address indoor air quality (IAQ) and mold issues in northern housing experiencing varying occupancies and indoor conditions, ventilation needs to become demand-controlled. Currently, heat/energy recovery ventilators (HRVs/ERVs) are commonly installed in northern communities and they offer constant or globally controlled airflows. Overcrowded homes are then under-ventilated, leading to higher indoor pollutants and moisture that need to be controlled. This study examines a method for providing adequate ventilation through control of ventilation based on occupancy and modulation of ventilation fans. This paper presents results from a side-by-side testing of a CO2-based demand-controlled dual-core ERV versus conventional single-core ERV with constant flow using twin houses with simulated occupancies. The implemented strategy based on a CO2 sensor network connected with a dual-core ERV continuously exhausting stale air from the kitchen and bathrooms was simple and efficient in adjusting ventilation rate based on occupancy rate. The potential of the CO2-based demand-controlled dual-core ERV system was evaluated based on its capability to control indoor CO2 levels, percentage of time kept below 1,000 ppm, and power consumption.
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REFERENCES
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Published In
Cold Regions Engineering 2024: Sustainable and Resilient Engineering Solutions for Changing Cold Regions
Pages: 227 - 238
History
Published online: May 9, 2024
ASCE Technical Topics:
- [Inorganic compounds]
- Architectural engineering
- Building systems
- Carbon compounds
- Carbon dioxide
- Chemicals
- Chemistry
- Cold regions engineering
- Energy infrastructure
- Energy recovery
- Environmental engineering
- Frost
- Housing
- HVAC
- Indoor environmental quality
- Infrastructure
- Lifeline systems
- Organic compounds
- Pollution
- Urban and regional development
- Ventilation
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