Daytime space cooling with phase change material ceiling panels discharged using rooftop photovoltaic/thermal panels and night-time ventilation

An experimental study of the effect of different starting room temperatures on occupant comfort in Danish summer weather

“…Most offices need cooling even in temperate climates like Denmark due to more airtight building envelopes. Several papers and studies show the benefits of using night cooling combined with the active use of thermal mass in the building [33]- [37]. These benefits are mainly due to transferring some of the cooling from day-time to night-time and reduction of the peak load.…”

Design and experimental evaluation of phase change material based cooling ceiling system

“…As was mentioned, active pumps or fans are utilized in active cooling systems. So, these systems are commonly based on the integration of PCMs with mechanical ventilation [36][37][38][39][40] or water system [41,24,25,[42][43][44][45][46]. It is possible to achieve optimal thermal comfort and better energy utilization leading to energy savings by a suitable combination of PCM and HVAC.…”

“…The proposed prototypes reached adequate thermal performance. Bourdakis et al [41] experimentally examined active PCM radiant cooling ceiling panels. The results showed the active discharging is more effective than passive.…”

An Experimental Study of a Thermally Activated Ceiling Containing Phase Change Material for Different Cooling Load Profiles

“…Allerhand et al (2019) [33] carried out simulations in the Transient System Simulation Tool (TRNSYS) that indicated that PCM ceilings and TABS reduce peak power by 30% and cooling energy demand by 14-15% compared to an air-based cooling system. Bourdakis et al (2015Bourdakis et al ( , 2016 [34,35] indicated that regeneration of phase change material using a water-based system is more efficient than using mechanical ventilation during the night. They noted that the use of free cooling is insufficient to discharge a PCM in a Mediterranean climate, while it allows full regeneration in Nordic countries.…”