TY - GEN
T1 - Passive Cooling System Design for Office Space in Arid Climate Using Diurnal Radiative Cooling
AU - Katramiz, Elvire
AU - Alotaibi, Sorour
AU - Ghaddar, Nesreen
AU - Chakroun, Walid
AU - Ghali, Kamel
AU - Al Jebaei, Hussein
N1 - Publisher Copyright:
© 2020 ASHRAE (www.ashrae.org).
PY - 2020
Y1 - 2020
N2 - This work considers a hydronic radiative cooling (RC) panel to be coupled with a phase change material (PCM) storage tank system to assist a conventional air conditioning (AC) unit in meeting the cooling needs of an office space during occupancy hours. The nocturnal radiative cooling power is used to regenerate the PCM during nighttime and the diurnal radiative power is used to pre-cool the air supplied to the condenser of the AC unit during daytime to enhance its performance. A mathematical model is developed to predict the system operation; it integrates the hydronic RC panel model, water/PCM system heat exchange model and space model. The developed model is applied to a case study considering an office space located in Kuwait. An energy analysis is conducted to predict the energy savings of the proposed system in comparison to typical AC system, for the months of June, July, August and September. Results show that the use of the diurnal cooling power of the RC panel was able to enhance the coefficient of performance (COP) of the AC system. Moreover, a reduction in the energy consumption of the AC unit of 37.74% during the four considered months was achieved.
AB - This work considers a hydronic radiative cooling (RC) panel to be coupled with a phase change material (PCM) storage tank system to assist a conventional air conditioning (AC) unit in meeting the cooling needs of an office space during occupancy hours. The nocturnal radiative cooling power is used to regenerate the PCM during nighttime and the diurnal radiative power is used to pre-cool the air supplied to the condenser of the AC unit during daytime to enhance its performance. A mathematical model is developed to predict the system operation; it integrates the hydronic RC panel model, water/PCM system heat exchange model and space model. The developed model is applied to a case study considering an office space located in Kuwait. An energy analysis is conducted to predict the energy savings of the proposed system in comparison to typical AC system, for the months of June, July, August and September. Results show that the use of the diurnal cooling power of the RC panel was able to enhance the coefficient of performance (COP) of the AC system. Moreover, a reduction in the energy consumption of the AC unit of 37.74% during the four considered months was achieved.
UR - http://www.scopus.com/inward/record.url?scp=85132416133&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85132416133
T3 - International Conference on Efficient Building Design: Material and HVAC Equipment Technologies
SP - 270
EP - 277
BT - 4th International Conference on Efficient Building Design - Materials and HVAC Equipment Technologies 2020
PB - ASHRAE
T2 - 4th International Conference on Efficient Building Design - Materials and HVAC Equipment Technologies 2020
Y2 - 4 November 2020 through 6 November 2020
ER -
