Energy efficiency measures - Industrial - Ventilation
Template assignment
Base case
The worked-out solution is the data file selected from within the RETScreen Project Database. The user automatically downloads the Project Database file while downloading the RETScreen software.
Template assignment
Base case
- Fan and ventilation system are on constantly
- 10,000 m³/h with 70% fresh air
- Intake air damper is very leaky
- No heat recovery system
- Building heated by natural gas and air conditioned
- Natural gas heating at $0.40/m³, electricity at $0.10/kWh
- Reduce flow by 10% while maintaining the same air mix
- Install fan and ventilation controls, and run system only when building is occupied - 12 hours per day weekdays, 8 hours per day weekends
- Setback/setup temperature for unoccupied times 3 °C
- Reduce set temperature for heating by 1 °C
- Increase set temperature for cooling by 2 °C
- Install new inlet air damper
- Install heat exchanger, efficiency 40%
- Estimated cost for system upgrade: $50,000
- Annual savings in operation and maintenance is expected to be $1,000
- What will be the savings if both set temperatures are changed 2 °C?
The worked-out solution is the data file selected from within the RETScreen Project Database. The user automatically downloads the Project Database file while downloading the RETScreen software.
