COOLFACADE: State-of-the-art review and evaluation of solar cooling technologies on their potential for façade integration

Hoces, A.I. Prieto; Knaack, Ulrich; Auer, Thomas; Klein, Tillmann

doi:10.1016/j.rser.2018.11.015

Cited by 46 publications

(18 citation statements)

References 128 publications

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“…The solar cooling technologies considered in the assessment are depicted in Table 5, along with their generally-expected performance ranges, based on the specialised literature [2,21,30]. Additionally, efficiencies for solar cooling concepts and prototypes over 0.5 kW and under 5 kW are shown, based on an unpublished state-of-the-art review conducted by the authors [31]. The specific performance of these experiences is highly relevant due to the low capacities to be met by the façade integrated systems, ranging from 0.8 to 1.8 kW in the assessed scenarios.…”

Section: Solar Cooling Output (Scool Out ) and Boundary Conditions Fomentioning

confidence: 99%

Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions

et al. 2018

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Small-scale systems and integrated concepts are currently being explored to promote the widespread application of solar cooling technologies in buildings. This article seeks to expand application possibilities by exploring the feasibility of solar cooling integrated façades, as decentralized self-sufficient cooling modules on different warm regions. The climate feasibility of solar electric and solar thermal concepts is evaluated based on solar availability and local cooling demands to be met by current technical possibilities. Numerical calculations are employed for the evaluation, considering statistical climate data; cooling demands per orientation from several simulated scenarios; and state-of-the-art efficiency values of solar cooling technologies, from the specialized literature. The main results show that, in general, warm-dry climates and east/west orientations are better suited for solar cooling façade applications, compared to humid regions and north/south orientations. Results from the base scenario show promising potential for solar thermal technologies, reaching a theoretical solar fraction of 100% in several cases. Application possibilities expand when higher solar array area and lower tilt angle on panels are considered, but these imply aesthetical and constructional constraints for façade design. Finally, recommendations are drafted considering prospects for the exploration of suitable technologies for each location, and façade design considerations for the optimization of the solar input per orientation.These systems have been researched and developed, mostly focusing on their performance, but their application in the built environment remains mostly limited to large demonstration projects and pilot experiences [7]. In that regard, several small-scale designs and prototypes are being developed by researchers, in order to promote widespread architectural application of these technologies in buildings, under the concept of solar cooling façades [5]. These integrated concepts seize the economic and functional benefits derived from the integration of decentralised components in the façade, while using the available exposed area for direct and diffuse solar collection. Economic benefits from façade integration refer to the construction cost savings and extra leasable space from avoiding complex distribution systems and large equipment [8,9], and functional advantages range from efficient energy usage by identifying local demands, to increased comfort due to personal control [10]. On the other hand, the façade not only comprises available external surface, but also directly influences indoor comfort. In warm climates, peak solar irradiance in façades usually match peak cooling demands in the adjacent offices, so it makes sense to harvest that radiation to drive a cooling system, while blocking solar heat gains under a climate responsive façade design.Solar cooling façade concepts found in the literature are based either on solar electric processes, using thermoelectric modules [11,12], or solar thermal...

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Section: Solar Cooling Output (Scool Out ) and Boundary Conditions Fomentioning

confidence: 99%

Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions

et al. 2018

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“…In recent years, the design or restructuring of buildings has been to adapt to different climate changes and to minimise building energy consumption. Due to the rapidly increasing average global temperature, indicative of anthropogenic global warming [17][18][19][20][21], necessary retrofit measures are required for existing buildings to accommodate the high ambient temperature [22][23][24]. However, the pre-selection of suitable retrofit measures is dependent on the regional climate changes [25][26][27].…”

Section: Background Study: Building Energy Consumption and The Climatmentioning

confidence: 99%

Building Energy Retrofit Measures in Hot-Summer–Cold-Winter Climates: A Case Study in Shanghai

et al. 2019

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Building retrofit measures provide a significant means of mitigating the effect of climate change on buildings by enhancing building energy performance at a beneficial cost-effectiveness. An insight into the applicable building retrofit measures within a climate zone will guide the optimisation framework to attaining sustainability in architecture and the built environment. This article presents a brief overview of recent studies on retrofit measures and its application on a variety of buildings in hot-summer–cold-winter climates, with emphasis on Shanghai. Findings show that the major retrofit measures include improvement in the building envelope, heating, ventilation and cooling (HVAC) and lighting, supported by photovoltaic (PV) systems, accordingly. Furthermore, the study identifies key elements and plausible challenges for the evaluation of building retrofit measures in this region. In this regard, financial barriers and lack of standards and regulatory support are the main challenges identified. These insights provide a systematic approach to guide building researchers, practitioners and decision-makers in the design and development of existing and new retrofit measures for the future of rapidly growing cities with a broad climate variation scope.

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“…However, several other studies have evaluated the technical and economic performance of solar cooling technologies to analyze how well they can perform when compared to conventional cooling systems [22,26]. These evaluations have been mainly done on residential cases of study, which have focused on air-conditioning processes highlighting design optimization methods, supply strategies, and the architectural integration of solar energy in buildings for cooling [27][28][29]. This fact, along with the previous argument, have resulted in a limited vision of the potential of solar cooling technologies applied to other commercial or industrial settings, where the potential to significantly impact CO 2 reduction is considerable.…”

Section: Introductionmentioning

confidence: 99%

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

et al. 2021

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The trend to reduce CO2 emissions in cooling processes has made it possible to increase the alternatives for integrating solar energy with thermal equipment whose viability depends on its adaptation to polygeneration schemes. Despite the enormous potential offered by the industry for cooling and heating processes, solar cooling technologies (SCT) have been explored in a limited way in the industrial sector. This work discusses the potential applications of industrial SCTs and classifies hybrid polygeneration schemes based on supplying cold, heat, electricity, and desalination of water; summarizes the leading SCTs, and details the main indicators of polygeneration configurations in terms of reductions on primary energy consumption and payback times. To achieve an energy transition in refrigeration processes, the scenarios with the most significant potential are: the food manufacturing industry (water immersion and crystallization processes), the beverage industry (fermentation and storage processes), and the mining industry (underground air conditioning).

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COOLFACADE: State-of-the-art review and evaluation of solar cooling technologies on their potential for façade integration

Cited by 46 publications

References 128 publications

Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions

Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions

Building Energy Retrofit Measures in Hot-Summer–Cold-Winter Climates: A Case Study in Shanghai

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

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