Annual Energy Simulation
Estimate annual HVAC energy consumption using the bin method
1 Location & Climate Data
Design Cooling:
35°C DB / 27°C WB
Design Heating:
10°C DB
Cooling Hours:
2,800 hrs
Heating Hours:
400 hrs
2 Building Load Profile
kW
°C
°C
%
Internal gains (lighting, equipment, people)
3 HVAC Equipment
Cooling System
%
Pumps, towers, fans
Heating System
COP
%
4 Energy Costs
TWD/kWh
TWD/m³
TWD/kW
Annual Energy Summary
Total Annual Energy
--
--
Cooling Energy
--
Heating Energy
--
EUI (Energy Use Intensity)
--
Peak Demand
--
Annual Cost Breakdown
Cooling Electricity
--
Heating Energy
--
Demand Charges
--
Total Annual Cost
--
Monthly Energy Distribution
Performance Metrics
Avg. Part Load Ratio
--
Weighted Avg. COP
--
Equivalent Full Load Hours
--
Cooling Degree Days
--
Heating Degree Days
--
Bin Analysis Data
| Temp Bin (°C) | Hours | Load (kW) | PLR (%) | COP | Energy (kWh) | Mode |
|---|
Bin Method Reference
Calculation Method
- Based on ASHRAE bin method for annual energy estimation
- Temperature bins: 3°C (5°F) intervals
- Part-load efficiency curves based on equipment type
- Weather data from typical meteorological year (TMY)
Key Assumptions
- Linear relationship between outdoor temp and load
- Base load accounts for internal gains
- Part-load COP varies with load ratio
- No economizer or free cooling included
Note: This simplified bin method provides estimated annual energy consumption. For detailed energy modeling, use specialized software like EnergyPlus, eQUEST, or TRACE 700.