CFD study on the validity of using PCM in a controlled cooling ceiling integrated in a ventilated room

Phase change materials in thermally activated building systems: A comprehensive review

“…Their reported optimum PCM thickness was only 1.5 cm for a supply water temperature of 15°C, where the system saved 22% of the energy consumption of an all‐air system. Khattari et al 101 developed a CFD model to examine the thermal comfort and energy savings due to the use of paraffin C13 PCMs with a radiant ceiling system in three Moroccan climates. It was found that this PCM type could save energy remarkably in Fez (17.07%) and Ifrane (16.3%), whereas in the third city (Marrakech), the use of PCMs was not satisfying as the energy savings are only 2.23%.…”

Energy and Thermal Performance Analysis of PCM-Incorporated Glazing Units Combined with Passive and Active Techniques: A Review Study

“…Utilizing Phase Change Materials (PCMs) as a passive approach incorporated into the building envelope has lately garnered the interest of researchers due to the high latent energy storage resulting in a greater thermal mass for structures. PCMs have been incorporated into the building envelope's transparent part, which includes windows [3], curtain walls [4], and glazed roofs [5], and the opaque part that includes walls [6], ceilings [7], and floors [8]. The usage of PCMs can play a crucial role in managing the indoor temperature, transferring the peak load to off-peak hours, and reducing the energy required for space cooling and heating; nevertheless, further scientific research is required based on recent review studies on PCMs [9][10][11][12].…”

Calculation of room temperature drop after an emergency shutdown of heating

“…With an excess of heat, accumulation (accumulation) occurs, with a shortage, return. For the effective accumulation of heat/cold, provided that the internal air temperature is maintained within the normalized values, enclosing structures have been proposed, which include substances with a phase transition [4][5][6][7][8][9][10][11][12][13]. In the case of intermittent operation of heating (cooling) systems, the heat storage capacity is directly taken into account to improve the accuracy of calculations [11][12].…”

“…For the effective accumulation of heat/cold, provided that the internal air temperature is maintained within the normalized values, enclosing structures have been proposed, which include substances with a phase transition [4][5][6][7][8][9][10][11][12][13]. In the case of intermittent operation of heating (cooling) systems, the heat storage capacity is directly taken into account to improve the accuracy of calculations [11][12]. In addition to energy-saving measures, in buildings with electric heating, heat accumulation by fences makes it possible to lower the peak power of power plants [13].…”

“…Much attention is paid to improving thermal comfort for people's stay and reducing energy consumption [14][15][16][17][18][19][20][21]. Numerical methods are used to solve the non-stationary thermal regime of premises, but within the framework of periodic thermal effects for the analysis and evaluation of energy consumption [11][12][13][14][15]. The issue of reducing the cooling capacity due to the accumulation of cold by a reinforced concrete slab during the night mode of operation of the natural ventilation system is considered [19].…”