Analysis for Energy Efficiency of the Algae Façade - Focused on Closed Bioreactor System -

Kim, Tae-Ryong; Han, Seung-Hoon

doi:10.12813/kieae.2014.14.6.015

Cited by 6 publications

(3 citation statements)

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“…In algae façade-integrated buildings, the lifesaving sources of CO 2 and nutrients for microalgae growth are obtained from occupants and building operations. A simulation study of PBR façade-integrated building showed a 13% reduction in CO 2 level compared to a standard building with 200 occupants [27,47]. The high concentration of CO 2 produced by occupants' respiration and nutrients from domestic wastewater increases the biomass productivity.…”

Section: Façade-integrated Algaementioning

confidence: 99%

“…A wide acceptance due to financial incentives through carbon credits and the production of value-added products can also lead to the development of this technology in future. Concentrating on the consumption of energy and the energy saving costs, the sustainability and success of the microalgae applications in the built environment will be specified [23,24,29,47]. The bibliographic analysis shows that these systems are an increasingly active and rapidly growing area of research and practice (Figure 2).…”

Section: The Future Of Pbr-integrated Buildingsmentioning

confidence: 99%

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Algae-Powered Buildings: A Review of an Innovative, Sustainable Approach in the Built Environment

2023

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Environmental pollution, global warming, energy consumption, and limited natural resources are some key factors from which today’s built environment faces interrelated problems and their management plays a vital role in sustainability. The building sector is involved in 35% of global energy usage and 40% of energy related CO2 emissions. Application of bioactive elements on buildings’ façades is a novel approach for solving the above-mentioned problems. Management of some important factors such as thermal comfort, energy efficiency, wastewater treatment, and CO2 capture is positively affected by bioactive façades because of their environmentally friendly nature. They also have positive effects on global warming, pollution control, social wealth, and sustainable development on a larger scale. The buildings integrated with photobioreactors (PBRs) can meet their thermal needs due to thermal insulation, shading, solar collection, and light-to-biomass conversion. Energy savings up to 30% are estimated to be met by PBR-integrated buildings due to reduced heating, cooling, ventilation, and lighting loads. The above amount of energy saving results in less CO2 emission. Moreover, the algae-integrated buildings can sequester CO2 with an average sequestration rate of 5 g/ft2/day when optimum growing environments and operation modes are implemented. This study is an overview of microalgae intervention and PBR-adapted buildings as an innovative approach for energy efficiency in the built environment with regard to implemented or speculative cases, pros and cons, challenges, and prospects.

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Section: Façade-integrated Algaementioning

confidence: 99%

Section: The Future Of Pbr-integrated Buildingsmentioning

confidence: 99%

Algae-Powered Buildings: A Review of an Innovative, Sustainable Approach in the Built Environment

2023

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“…In eco-friendly settings, algae resources have a great possibility to harvest energy sources and relevant researches on the production technology are being performed in a variety of ways for the development of microalgae cultivation and application. [4] It is majorly divided into an open pond system and a closed photobioreactor system. Open pond system means an open culture, the cells of the algae in the tank in such a way as to depths of less than 30 meters to be passed well in the microalgae PV (Photovoltaics).…”

Section: Algae As Promising Building Energy Resourcesmentioning

confidence: 99%

Utilization of Building Colors with the Energy-Oriented Algae Façade System

Jo¹,

Han²

2017

KIEAE Journal

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43 Introduction 1)Most of the current energy is dependent on fossil energy these days that is impossible for recycling and has disadvantages of causing environmental pollution, and the world is facing energy problems due to the depletion of energy resources. Currently In this sense, this study aims at verifying alternative technologies for implementing building elevations that contain various colors equipped with algae façade systems and suggesting design guidelines to enhance both building performance and design values. Theoretical Speculation Algae as Promising Building Energy ResourcesAlgae cells are filled with oils into droplets that are regarded as promising rich resources. Since oils of algae cells can be converted into biodiesel and algae consume carbon dioxide (CO 2 ) during the culturing process, it is useful to use algae resources for improving the interior comfort with producing oxygen (O 2 ) by converting from CO 2 .[2] Algae resources can normally be classified into macroalgae and microalgae. Macroalgae are well known as seaweed having multicellular organs raised from the seawater, and comparatively, the freshwater algae grow up to 60 meters in a singular form.Microalgae have a unicellular organization and are grown KIEAE Journal, Vol. 17, No. 1, Feb. 2017, pp.43-48. KIEAE Journal A B S T R A C T K E Y W O R DPurpose: Building owners or residents have concerns to strive for energy-saving and environmental conservation by utilizing with eco-friendlier energy resources for their physical environment. In this paper, an algae façade system is proposed as an energy-friendly building component to improve energy productivity and indoor environmental quality, and this study aims at verifying alternative technologies for implementing building elevations that contain various colors equipped with algae façade systems and suggesting design guidelines to enhance both building performance and design values. Method: The color of algae is basically ranged about the saturation green, and it is hardly converted to other variations. Such a problem can be resolved through the artificial lights like LED (Light Emitting Diode) lamps to mix the color from the algae and buildings could possibly change the elevation in many ways under the influence of daylight. Result: As a result, the suggested system may increase the aesthetic aspect of the building in response to environmental changes. The system cannot possibly be applied for only new construction, but also it can be utilized with the existing buildings as well. The proposed system is expected to be applied not only a new construction and any existing buildings as well, and it will cover from the environmentally friendly energy generation in the industry to a new application system for increasing energy efficiency and the beauty of building envelopes.ⓒ 2017 KIEAE Journal Algae Façade Building Colors LED Lamps Photobioreactor System Building Envelopes.

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Bioactive Façade System Symbiosis as a Key for Eco-Beneficial Building Element

Öncel

2019

Green Energy and Technology

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Analysis for Energy Efficiency of the Algae Façade - Focused on Closed Bioreactor System -

Cited by 6 publications

References 3 publications

Algae-Powered Buildings: A Review of an Innovative, Sustainable Approach in the Built Environment

Algae-Powered Buildings: A Review of an Innovative, Sustainable Approach in the Built Environment

Utilization of Building Colors with the Energy-Oriented Algae Façade System

Bioactive Façade System Symbiosis as a Key for Eco-Beneficial Building Element

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