Hybrid solar water heating/nocturnal radiation cooling system I: A review of the progress, prospects and challenges

Loading PCM Into Buildings Envelope to Decrease Heat Gain-Performing Transient Thermal Analysis on Nanofluid Filled Solar System

“…Buildings contribute a lot to pollution production and energy consumption (Jahangiri et al, 2016;Mostafaeipour et al, 2020;Kalbasi et al, 2021;Parsa, 2021;Song et al, 2021). Many solutions have been recommended by various researchers to reduce energy consumption (Ahmadi et al, 2017;Ahmad et al, 2018;Nwaji et al, 2019;Sarafraz et al, 2019;Azimi Fereidani et al, 2021;Nundy et al, 2021). Techniques include installing PCM (Ahangari and Maerefat, 2019;Lizana et al, 2019;Ziasistani and Fazelpour, 2019;Ben Romdhane et al, 2020;Miansari et al, 2020;Saxena et al, 2020), heat recovery (Liu et al, 2020;Shahsavar Goldanlou et al, 2020), using solar energy (Toghraie et al, 2018;Gagliano et al, 2019;Parsa et al, 2019;Gholipour et al, 2020;Menni et al, 2020;Parsa et al, 2020;Poon et al, 2020;Gholipour et al, 2021), other renewables such as wind (Jahangiri et al, 2019;Mostafaeipour et al, 2019;Kalbasi et al, 2021), geothermal sources (Kang et al, 2013;Palmero-Marrero et al, 2020) and finally using nanofluid (Kulkarni et al, 2009;Strandberg and Das, 2010;Moradi et al, 2019;Soltani et al, 2020;Mustafa et al, 2021).…”

Investigation of the thermal performance of a solar absorber and nocturnal radiator (SAANR) hybrid panel for summer and winter seasons

“…Hence a viable approach is a hybrid system that is capable of harnessing solar radiation during the day and night sky radiation, leading to significantly reduced overall cost of investment [ 5 ]. The combination of solar water heating and nocturnal radiation cooling improves the economics of the systems in comparison to stand-alone heating and cooling systems [ 5 , 29 ].…”

“…According to Nwaji, et al. [ 29 ], hybrid systems are described as systems that have the capability of performing different characteristic functions as a single unit such as generation of solar electricity and heat, solar water heating and space cooling. The shortfalls of stand-alone systems have triggered development of hybrid systems.…”

“…The shortfalls of stand-alone systems have triggered development of hybrid systems. In a novel study investigating the performance of a hybrid solar water heating and nocturnal water cooling systems, an assessment of the instantaneous hybrid panel performance effects due to bond width, bond thickness, and tube spacing to optimise specifications for the prototype design was undertaken [ 29 ]. The parametric analysis showed that the optimum values for bond thickness is 0.003 m, bond width is 0.26m, tube spacing is 0.1m and windscreen requirement is one polyethylene windscreen for convection cover.…”

“…However, many countries are located outside the tropical region, hence the applicability of the study is limited. Several challenges hamper the development and implementation of solar water heating and nocturnal radiation cooling hybrid systems that will need to be addressed to achieve worldwide implementation success, such challenges include economic, technical, and societal constraints [ 29 , 30 , 31 , 32 , 33 , 34 ].…”