Design and thermal analysis of a new multi-segmented mini channel based radiant ceiling cooling panel

Abstract Cooling radiant ceiling panel (CRCP) have been dramatically applied in the modern buildings. Therefore, the key aim of this article is to recommend a new multi-segmented mini-channel-based CRCP with four distinct designs to compete with the traditional flat sheet-and-tube CRCP. In these designs, the panel is divided into multi-strips wide mini-channel. These segments are integrated into the room with a different inclination angle. This permits the designers to enlarge the number of segments or the panel area for the identical constrained ceiling area. Two different 3D CFD models are developed and validated. The first model is a conjugate heat transfer model used to compare the thermo-hydraulic performance of the sheet and tube CRCP with the new proposed mini-channel-based CRCP. The second model is utilized to integrate the new mini-channel with different designs for the standard testing methods. The findings demonstrate that the mini-channel CRCR accomplish high panel temperature uniformity, higher cooling capacity, and lower power consumption in comparison with the traditional sheet and tube panels. Furthermore, the multi-segmented mini-channel CRCP inclined with ± 45°, V- shape, with 83% increased area accomplish a 51% boost in the cooling capacity at the same indoor temperature. Also, it is worth declaring that this design can be conducted at a panel temperature of 18.8°C to accomplish the same cooling capacity and the identical indoor air temperature obtained by a flat CRCP with panel temperature of 15.8°C.

[1]  Néstor Fonseca,et al.  Experimental study of thermal condition in a room with hydronic cooling radiant surfaces , 2011 .

[2]  Toshiaki Omori,et al.  Thermal comfort and energy consumption of the radiant ceiling panel system.: Comparison with the conventional all-air system , 1999 .

[3]  Fred Bauman,et al.  Effect of acoustical clouds coverage and air movement on radiant chilled ceiling cooling capacity , 2018 .

[4]  S. Lorente,et al.  Influence of the arrangement of multiple radiant ceiling panels on the radiant temperature field , 2020 .

[5]  Tassos G. Karayiannis,et al.  Experimental benchmark data for turbulent natural convection in an air filled square cavity , 2003 .

[6]  John H. Lienhard,et al.  Heat transfer across a two-fluid-layer region , 1986 .

[7]  Maxime Tye-Gingras,et al.  Investigation on heat transfer modeling assumptions for radiant panels with serpentine layout , 2011 .

[8]  Fred Bauman,et al.  Cooling load differences between radiant and air systems , 2013 .

[9]  S. Lorente,et al.  Role of flow architectures on the design of radiant cooling panels, a constructal approach , 2019, Applied Thermal Engineering.

[10]  Bjarne W. Olesen,et al.  Ten questions about radiant heating and cooling systems , 2017 .

[11]  Iakovos Michailidis,et al.  Proactive control for solar energy exploitation: A german high-inertia building case study , 2015 .

[12]  Maxime Tye-Gingras,et al.  Comfort and energy consumption of hydronic heating radiant ceilings and walls based on CFD analysis , 2012 .

[13]  Svend Svendsen,et al.  Full scale measurements and CFD investigations of a wall radiant cooling system integrated in thin concrete walls , 2017 .

[14]  W. Xu,et al.  Numerical simulation of airflow in a room with differentially heated vertical walls , 1998 .

[15]  Wei Liao,et al.  Experimental investigation on the cooling performance of a novel grooved radiant panel filled with heat transfer liquid , 2019, Sustainable Cities and Society.

[16]  Zhiqiang Wang,et al.  The dynamic effect of supply water flow regulation on surface temperature changes of radiant ceiling panel for cooling operation , 2020 .

[17]  Kwang Woo Kim,et al.  Enhancement of cooling capacity through open-type installation of cooling radiant ceiling panel systems , 2019, Building and Environment.

[18]  Hasan Karabay,et al.  A numerical investigation of fluid flow and heat transfer inside a room for floor heating and wall heating systems , 2013 .

[19]  Iakovos Michailidis,et al.  Occupancy-based demand response and thermal comfort optimization in microgrids with renewable energy sources and energy storage , 2016 .

[20]  Z. Yumurtacı,et al.  An experimental investigation on heat transfer characteristics arising over an underfloor cooling system exposed to different radiant heating loads through walls , 2020 .

[21]  Leon R. Glicksman,et al.  Steady-State Natural Convection in Empty and Partitioned Enclosures at High Rayleigh Numbers , 1990 .

[22]  Stéphane Colin,et al.  Heat Transfer and Fluid Flow in Minichannels and Microchannels , 2005 .

[23]  Youming Chen,et al.  Cooling capacity improvement for a radiant ceiling panel with uniform surface temperature distribution , 2016 .

[24]  Zhongbing Liu,et al.  A computational model of an improved cooling radiant ceiling panel system for optimization and design , 2019, Building and Environment.