A Network-Based Strategy to Increase the Sustainability of Building Supply Air Systems Responding to Unexpected Temperature Patterns
Abstract
:1. Building Thermal Control
2. Methodology
2.1. Overall Framework
2.2. Thermal and Comfort Rules
2.3. Control Rule
2.4. Adaptive Rule
2.5. Simulation Model
3. Results
3.1. Room Temperature by the Control Models
3.2. Heating Energy by the Control Models
4. Discussion
Performance Comparison of Each Model
5. Conclusions
Funding
Conflicts of Interest
Nomenclature
A | area of material(s) (m2) |
Cv | specific heat capacity at constant volume (J/kg·K) |
Cp | specific heat capacity at constant pressure (J/kg·K) |
D | thickness of material(s) (m) |
G | thermal conductance (W/K) |
hin, hout | convection heat transfer coefficient inside, outside (W/m2·K) |
k | thermal conductivity (W/m·K) |
ṁht | mass flow-rate from system (kg/h) |
ṁin | mass flow-rate inside room (kg/h) |
ṁout | mass flow-rate outside room (kg/h) |
mrm | mass flow-rate in room air (kg) |
Qloss | heat loss by convection and transmission (J) |
Qgain | heat gain by convection and transmission (J) |
R | thermal resistance (K/W) |
Tht | air temperature from heater (°C) |
Tout | outdoor temperature (°C) |
Trm | room temperature (°C) |
Tset | set-point temperature (°C) |
U | internal energy (J) |
W | work (J) |
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Parameter | Unit | Value | |
---|---|---|---|
Type | - | Small Office | |
Width × Depth × Height | m | 18.85 × 17.85 × 7.85 | |
Roof | Area | m2 | 336.5 |
Thermal Resistance | °C/W | 1.16 × 10−2 | |
Wall | Area | m2 | 576.2 |
Thermal Resistance | °C/W | 5.76 × 10−3 | |
Fenestration | Area | m2 | 24.0 |
Thermal Resistance | °C/W | 2.14 × 10−3 |
Controller | Std. Deviation of the PPDs | Difference (%) |
---|---|---|
Thermostat | 3.73 | - |
FIS | 2.38 | −36.3 |
ANN | 1.04 | −72.1 |
Controller | Weekly Energy Use (kWh) | Difference (%) |
---|---|---|
Thermostat | 15.42 | - |
FIS | 14.53 | −5.8 |
ANN | 12.52 | −18.8 |
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Ahn, J. A Network-Based Strategy to Increase the Sustainability of Building Supply Air Systems Responding to Unexpected Temperature Patterns. Sustainability 2022, 14, 14710. https://doi.org/10.3390/su142214710
Ahn J. A Network-Based Strategy to Increase the Sustainability of Building Supply Air Systems Responding to Unexpected Temperature Patterns. Sustainability. 2022; 14(22):14710. https://doi.org/10.3390/su142214710
Chicago/Turabian StyleAhn, Jonghoon. 2022. "A Network-Based Strategy to Increase the Sustainability of Building Supply Air Systems Responding to Unexpected Temperature Patterns" Sustainability 14, no. 22: 14710. https://doi.org/10.3390/su142214710