Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings
<p>Recent evidence available in the literature has highlighted that the high-energy consumption rate associated with air conditioning leads to the undesired “overcooling” condition in arid-climate regions. To this end, this study quantified the effects of increasing the cooling setpoint temper...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
MDPI
2022
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| _version_ | 1797109114381271040 |
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| author | Alrebei, OF Obeidat, B Al-Radaideh, T Le Page, LM Hewlett, S Al Assaf, AH Amhamed, AI |
| author_facet | Alrebei, OF Obeidat, B Al-Radaideh, T Le Page, LM Hewlett, S Al Assaf, AH Amhamed, AI |
| author_sort | Alrebei, OF |
| collection | OXFORD |
| description | <p>Recent evidence available in the literature has highlighted that the high-energy consumption rate associated with air conditioning leads to the undesired “overcooling” condition in arid-climate regions. To this end, this study quantified the effects of increasing the cooling setpoint temperature on reducing energy consumption and CO<sub>2</sub> emissions to mitigate overcooling. DesignBuilder software was used to simulate the performance of a generic building operating under the currently adopted ASHRAE HVAC criteria. It was found that increasing the cooling setpoint temperature by 1 °C will increase the operative temperature by approximately 0.25°C and reduce the annual cooling electricity consumption required for each 1 m<sup>2</sup> of an occupied area by approximately 8 kWh/year. This accounts for a reduction of 8% in cooling energy consumption compared to the ASHRAE cooling setpoint (i.e., t_s = 26 °C) and a reduction in the annual CO<sub>2</sub> emission rate to roughly 4.8 kg/m<sup>2</sup> °C. The largest reduction in cooling energy consumption and CO<sub>2</sub> emissions was found to occur in October, with reduced rates of approximately–1.3 kWh/m<sup>2</sup> °C and −0.8 kg/m<sup>2</sup> °C, respectively.</p> |
| first_indexed | 2024-03-07T07:37:23Z |
| format | Journal article |
| id | oxford-uuid:110b207d-3d2c-4f1f-bc65-2f1c7b62a5de |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:37:23Z |
| publishDate | 2022 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oxford-uuid:110b207d-3d2c-4f1f-bc65-2f1c7b62a5de2023-03-24T15:30:01ZQuantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildingsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:110b207d-3d2c-4f1f-bc65-2f1c7b62a5deEnglishSymplectic ElementsMDPI2022Alrebei, OFObeidat, BAl-Radaideh, TLe Page, LMHewlett, SAl Assaf, AHAmhamed, AI<p>Recent evidence available in the literature has highlighted that the high-energy consumption rate associated with air conditioning leads to the undesired “overcooling” condition in arid-climate regions. To this end, this study quantified the effects of increasing the cooling setpoint temperature on reducing energy consumption and CO<sub>2</sub> emissions to mitigate overcooling. DesignBuilder software was used to simulate the performance of a generic building operating under the currently adopted ASHRAE HVAC criteria. It was found that increasing the cooling setpoint temperature by 1 °C will increase the operative temperature by approximately 0.25°C and reduce the annual cooling electricity consumption required for each 1 m<sup>2</sup> of an occupied area by approximately 8 kWh/year. This accounts for a reduction of 8% in cooling energy consumption compared to the ASHRAE cooling setpoint (i.e., t_s = 26 °C) and a reduction in the annual CO<sub>2</sub> emission rate to roughly 4.8 kg/m<sup>2</sup> °C. The largest reduction in cooling energy consumption and CO<sub>2</sub> emissions was found to occur in October, with reduced rates of approximately–1.3 kWh/m<sup>2</sup> °C and −0.8 kg/m<sup>2</sup> °C, respectively.</p> |
| spellingShingle | Alrebei, OF Obeidat, B Al-Radaideh, T Le Page, LM Hewlett, S Al Assaf, AH Amhamed, AI Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title | Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title_full | Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title_fullStr | Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title_full_unstemmed | Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title_short | Quantifying CO2 emissions and energy production from power plants to run HVAC systems in ASHRAE-based buildings |
| title_sort | quantifying co2 emissions and energy production from power plants to run hvac systems in ashrae based buildings |
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