IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i16p4213-d399191.html
   My bibliography  Save this article

Evaluation of Applicability of Various Color Space Techniques of UAV Images for Evaluating Cool Roof Performance

Author

Listed:
  • Kirim Lee

    (Department of Spatial Information, Kyungpook National University, Daegu 41566, Korea)

  • Jihoon Seong

    (Department of Spatial Information, Kyungpook National University, Daegu 41566, Korea)

  • Youkyung Han

    (School of Convergence and Fusion System Engineering, Kyungpook National University, Sangju 37224, Korea)

  • Won Hee Lee

    (School of Convergence and Fusion System Engineering, Kyungpook National University, Sangju 37224, Korea)

Abstract

Global warming is intensifying worldwide, and urban heat islands are occurring as urbanization progresses. The cool roof method is one alternative for reducing the urban heat island phenomenon and lowering the heat on building roofs for a comfortable indoor environment. In this study, a cool roof evaluation was performed using an unmanned aerial vehicle (UAV) and a red, green and blue (RGB) camera instead of a laser thermometer and a thermal infrared sensor to evaluate existing cool roofs. When using a UAV, an RGB sensor is used instead of expensive infrared sensor. Various color space techniques, namely light-reflectance value, hue saturation value (HSV), hue saturation lightness, and YUV (luma component (Y) and two chrominance components, called U (blue projection) and V (red projection)) derived from RGB images, are applied to evaluate color space techniques suitable for cool roof evaluation. This case study shows the following quantitative results: among various color space techniques investigated herein, the white roof with lowest temperature (average surface temperature: 44.1 °C; average indoor temperature: 33.3 °C) showed highest HSV, while the black roof with the highest temperature (surface temperature average: 73.4 °C; indoor temperature average: 37.1 °C) depicted the lowest HSV. In addition, the HSV showed the highest correlation in both the Pearson correlation coefficient and the linear regression analyses when the correlation among the brightness, surface temperature, and indoor temperature of the four color space techniques was analyzed. This study is considered a valuable reference for using RGB cameras and HSV color space techniques, instead of expensive thermal infrared cameras, when evaluating cool roof performance.

Suggested Citation

  • Kirim Lee & Jihoon Seong & Youkyung Han & Won Hee Lee, 2020. "Evaluation of Applicability of Various Color Space Techniques of UAV Images for Evaluating Cool Roof Performance," Energies, MDPI, vol. 13(16), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4213-:d:399191
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/16/4213/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/16/4213/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Roman, Kibria K. & O'Brien, Timothy & Alvey, Jedediah B. & Woo, OhJin, 2016. "Simulating the effects of cool roof and PCM (phase change materials) based roof to mitigate UHI (urban heat island) in prominent US cities," Energy, Elsevier, vol. 96(C), pages 103-117.
    2. Seong-Il Park & Taek-Hyoung Ryu & Ick-Chang Choi & Jung-Sup Um, 2019. "Evaluating the Operational Potential of LRV Signatures Derived from UAV Imagery in Performance Evaluation of Cool Roofs," Energies, MDPI, vol. 12(14), pages 1-14, July.
    3. Zingre, Kishor T. & Yang, En-Hua & Wan, Man Pun, 2017. "Dynamic thermal performance of inclined double-skin roof: Modeling and experimental investigation," Energy, Elsevier, vol. 133(C), pages 900-912.
    4. Akeiber, Hussein & Nejat, Payam & Majid, Muhd Zaimi Abd. & Wahid, Mazlan A. & Jomehzadeh, Fatemeh & Zeynali Famileh, Iman & Calautit, John Kaiser & Hughes, Ben Richard & Zaki, Sheikh Ahmad, 2016. "A review on phase change material (PCM) for sustainable passive cooling in building envelopes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 1470-1497.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kirim Lee & Jinhwan Park & Sejung Jung & Wonhee Lee, 2021. "Roof Color-Based Warm Roof Evaluation in Cold Regions Using a UAV Mounted Thermal Infrared Imaging Camera," Energies, MDPI, vol. 14(20), pages 1-17, October.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Saafi, Khawla & Daouas, Naouel, 2019. "Energy and cost efficiency of phase change materials integrated in building envelopes under Tunisia Mediterranean climate," Energy, Elsevier, vol. 187(C).
    2. Wu, Minqiang & Li, Tingxian & He, Qifan & Du, Ruxue & Wang, Ruzhu, 2022. "Thermally conductive and form-stable phase change composite for building thermal management," Energy, Elsevier, vol. 239(PA).
    3. Zhu, Na & Hu, Naishuai & Hu, Pingfang & Lei, Fei & Li, Shanshan, 2019. "Experiment study on thermal performance of building integrated with double layers shape-stabilized phase change material wallboard," Energy, Elsevier, vol. 167(C), pages 1164-1180.
    4. Jiayu Li & Bohong Zheng & Wenquan Shen & Yanfen Xiang & Xiao Chen & Zhiyong Qi, 2019. "Cooling and Energy-Saving Performance of Different Green Wall Design: A Simulation Study of a Block," Energies, MDPI, vol. 12(15), pages 1-17, July.
    5. Saffari, Mohammad & de Gracia, Alvaro & Ushak, Svetlana & Cabeza, Luisa F., 2017. "Passive cooling of buildings with phase change materials using whole-building energy simulation tools: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 1239-1255.
    6. Mingli Li & Guoqing Gui & Zhibin Lin & Long Jiang & Hong Pan & Xingyu Wang, 2018. "Numerical Thermal Characterization and Performance Metrics of Building Envelopes Containing Phase Change Materials for Energy-Efficient Buildings," Sustainability, MDPI, vol. 10(8), pages 1-23, July.
    7. Gholamibozanjani, Gohar & Farid, Mohammed, 2020. "A comparison between passive and active PCM systems applied to buildings," Renewable Energy, Elsevier, vol. 162(C), pages 112-123.
    8. Zhikun Ding & Rongsheng Liu & Zongjie Li & Cheng Fan, 2020. "A Thematic Network-Based Methodology for the Research Trend Identification in Building Energy Management," Energies, MDPI, vol. 13(18), pages 1-33, September.
    9. Umair, Malik Muhammad & Zhang, Yuang & Iqbal, Kashif & Zhang, Shufen & Tang, Bingtao, 2019. "Novel strategies and supporting materials applied to shape-stabilize organic phase change materials for thermal energy storage–A review," Applied Energy, Elsevier, vol. 235(C), pages 846-873.
    10. Cheng, Xiwen & Zhai, Xiaoqiang, 2018. "Thermal performance analysis and optimization of a cascaded packed bed cool thermal energy storage unit using multiple phase change materials," Applied Energy, Elsevier, vol. 215(C), pages 566-576.
    11. Singh, Aditya Kumar & Rathore, Pushpendra Kumar Singh & Sharma, R.K. & Gupta, Naveen Kumar & Kumar, Rajan, 2023. "Experimental evaluation of composite concrete incorporated with thermal energy storage material for improved thermal behavior of buildings," Energy, Elsevier, vol. 263(PA).
    12. Atefeh Tamaskani Esfehankalateh & Jack Ngarambe & Geun Young Yun, 2021. "Influence of Tree Canopy Coverage and Leaf Area Density on Urban Heat Island Mitigation," Sustainability, MDPI, vol. 13(13), pages 1-14, July.
    13. Monika Gandhi & Ashok Kumar & Rajasekar Elangovan & Chandan Swaroop Meena & Kishor S. Kulkarni & Anuj Kumar & Garima Bhanot & Nishant R. Kapoor, 2020. "A Review on Shape-Stabilized Phase Change Materials for Latent Energy Storage in Buildings," Sustainability, MDPI, vol. 12(22), pages 1-17, November.
    14. Motte, F. & Notton, G. & Lamnatou, Chr & Cristofari, C. & Chemisana, D., 2019. "Numerical study of PCM integration impact on overall performances of a highly building-integrated solar collector," Renewable Energy, Elsevier, vol. 137(C), pages 10-19.
    15. Yu, Jinghua & Leng, Kangxin & Ye, Hong & Xu, Xinhua & Luo, Yongqiang & Wang, Jinbo & Yang, Xie & Yang, Qingchen & Gang, Wenjie, 2020. "Study on thermal insulation characteristics and optimized design of pipe-embedded ventilation roof with outer-layer shape-stabilized PCM in different climate zones," Renewable Energy, Elsevier, vol. 147(P1), pages 1609-1622.
    16. Rostami, Sara & Afrand, Masoud & Shahsavar, Amin & Sheikholeslami, M. & Kalbasi, Rasool & Aghakhani, Saeed & Shadloo, Mostafa Safdari & Oztop, Hakan F., 2020. "A review of melting and freezing processes of PCM/nano-PCM and their application in energy storage," Energy, Elsevier, vol. 211(C).
    17. Ahmed Hassan & Mohammad Shakeel Laghari & Yasir Rashid, 2016. "Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics," Sustainability, MDPI, vol. 8(10), pages 1-32, October.
    18. Saafi, Khawla & Daouas, Naouel, 2018. "A life-cycle cost analysis for an optimum combination of cool coating and thermal insulation of residential building roofs in Tunisia," Energy, Elsevier, vol. 152(C), pages 925-938.
    19. Gabriele Battista & Emanuele de Lieto Vollaro & Luca Evangelisti & Roberto de Lieto Vollaro, 2022. "Urban Overheating Mitigation Strategies Opportunities: A Case Study of a Square in Rome (Italy)," Sustainability, MDPI, vol. 14(24), pages 1-18, December.
    20. Ascione, Fabrizio & De Masi, Rosa Francesca & Santamouris, Mattheos & Ruggiero, Silvia & Vanoli, Giuseppe Peter, 2018. "Experimental and numerical evaluations on the energy penalty of reflective roofs during the heating season for Mediterranean climate," Energy, Elsevier, vol. 144(C), pages 178-199.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4213-:d:399191. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.