IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v35y2010i1p36-41.html
   My bibliography  Save this article

Performance of antisolar insulated roof system

Author

Listed:
  • Ahmad, Irshad

Abstract

Rooms with concrete slab roofs directly exposed to the sun become unbearably hot during summer and very cold during winter. Huge amounts of energy are required to keep them comfortable. Application of thermal insulation on roofs significantly reduces energy required for heating and cooling. The effectiveness of roof insulations may be further enhanced if a layer of antisolar coating is applied on top of the insulation. The antisolar coating reflects most of the incident sunlight and prevents the roof from heating up. This reduces the daily cycles of thermal expansion and contraction which cause cracks in the roof slabs for the rainwater to leak through. The antisolar coating prolongs the useful life of the building structure as well as the life of the insulation that evaporates with heat. The method of application of the antisolar coating has been specially developed to eliminate thermal bridges formed between the edges of the tiles. This report presents the results of an experiment conducted at the Attock Refinery Limited (ARL) Rawalpindi to assess the performance of the antisolar insulated roof system. Record of the room temperature before and after the installation of the system shows a significant reduction in the indoor temperature. The room occupants, who used to experience a very high thermal stress after 10:30 am in spite of the 1.5-ton air conditioner operating in the room, felt much relieved after the installation. They had to turn back the thermostat of the air conditioner and even had to switch it off occasionally. A detailed thermal analysis of the room shows that cost of an antisolar system is paid back in less than a year in the form of savings of energy required for air-conditioning in summer and for gas heating in winter. In addition, the system prevents the addition of 150kg per year of green house gases to the atmosphere for each square meter of the area covered by the system. It also provides a quieter environment by reducing the operational duration of the air-conditioning and gas heating appliances.

Suggested Citation

  • Ahmad, Irshad, 2010. "Performance of antisolar insulated roof system," Renewable Energy, Elsevier, vol. 35(1), pages 36-41.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:1:p:36-41
    DOI: 10.1016/j.renene.2009.07.022
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148109003310
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2009.07.022?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Abro, Riazuddin S., 1994. "Recognition of passive cooling techniques," Renewable Energy, Elsevier, vol. 5(5), pages 1143-1146.
    2. Erell, E. & Etzion, Y., 1999. "Analysis and experimental verification of an improved cooling radiator," Renewable Energy, Elsevier, vol. 16(1), pages 700-703.
    3. Al-Sallal, Khaled A., 2003. "Comparison between polystyrene and fiberglass roof insulation in warm and cold climates," Renewable Energy, Elsevier, vol. 28(4), pages 603-611.
    4. Florides, G. A. & Tassou, S. A. & Kalogirou, S. A. & Wrobel, L. C., 2002. "Measures used to lower building energy consumption and their cost effectiveness," Applied Energy, Elsevier, vol. 73(3-4), pages 299-328, November.
    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. Sadineni, Suresh B. & Madala, Srikanth & Boehm, Robert F., 2011. "Passive building energy savings: A review of building envelope components," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3617-3631.
    2. He, Hongming & Jim, C.Y., 2010. "Simulation of thermodynamic transmission in green roof ecosystem," Ecological Modelling, Elsevier, vol. 221(24), pages 2949-2958.

    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. Jian Yao, 2014. "A Multi-Objective (Energy, Economic and Environmental Performance) Life Cycle Analysis for Better Building Design," Sustainability, MDPI, vol. 6(2), pages 1-13, January.
    2. Man, Yi & Yang, Hongxing & Spitler, Jeffrey D. & Fang, Zhaohong, 2011. "Feasibility study on novel hybrid ground coupled heat pump system with nocturnal cooling radiator for cooling load dominated buildings," Applied Energy, Elsevier, vol. 88(11), pages 4160-4171.
    3. De Boeck, L. & Verbeke, S. & Audenaert, A. & De Mesmaeker, L., 2015. "Improving the energy performance of residential buildings: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 52(C), pages 960-975.
    4. Kharseh, Mohamad & Altorkmany, Lobna & Al-Khawaja, Mohammed & Hassani, Ferri, 2015. "Analysis of the effect of global climate change on ground source heat pump systems in different climate categories," Renewable Energy, Elsevier, vol. 78(C), pages 219-225.
    5. Aditya, L. & Mahlia, T.M.I. & Rismanchi, B. & Ng, H.M. & Hasan, M.H. & Metselaar, H.S.C. & Muraza, Oki & Aditiya, H.B., 2017. "A review on insulation materials for energy conservation in buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 1352-1365.
    6. Sadineni, Suresh B. & Madala, Srikanth & Boehm, Robert F., 2011. "Passive building energy savings: A review of building envelope components," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 3617-3631.
    7. Jim, C.Y., 2014. "Air-conditioning energy consumption due to green roofs with different building thermal insulation," Applied Energy, Elsevier, vol. 128(C), pages 49-59.
    8. Ascione, Fabrizio & Bianco, Nicola & de’ Rossi, Filippo & Turni, Gianluca & Vanoli, Giuseppe Peter, 2013. "Green roofs in European climates. Are effective solutions for the energy savings in air-conditioning?," Applied Energy, Elsevier, vol. 104(C), pages 845-859.
    9. Xiaonuan Sun & Zhonghua Gou & Yi Lu & Yiqi Tao, 2018. "Strengths and Weaknesses of Existing Building Green Retrofits: Case Study of a LEED EBOM Gold Project," Energies, MDPI, vol. 11(8), pages 1-18, July.
    10. Ucar, Aynur, 2010. "Thermoeconomic analysis method for optimization of insulation thickness for the four different climatic regions of Turkey," Energy, Elsevier, vol. 35(4), pages 1854-1864.
    11. Gopalakrishna Gangisetty & Ron Zevenhoven, 2023. "A Review of Nanoparticle Material Coatings in Passive Radiative Cooling Systems Including Skylights," Energies, MDPI, vol. 16(4), pages 1-59, February.
    12. Vall, Sergi & Castell, Albert, 2017. "Radiative cooling as low-grade energy source: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 803-820.
    13. Ángel Gómez-Moreno & Pedro José Casanova-Peláez & José Manuel Palomar-Carnicero & Fernando Cruz-Peragón, 2016. "Modeling and Experimental Validation of a Low-Cost Radiation Sensor Based on the Photovoltaic Effect for Building Applications," Energies, MDPI, vol. 9(11), pages 1-16, November.
    14. Yupeng Wang & Hiroatsu Fukuda, 2016. "Timber Chips as the Insulation Material for Energy Saving in Prefabricated Offices," Sustainability, MDPI, vol. 8(6), pages 1-12, June.
    15. Calautit, John Kaiser & Hughes, Ben Richard & O’Connor, Dominic & Shahzad, Sally Salome, 2017. "Numerical and experimental analysis of a multi-directional wind tower integrated with vertically-arranged heat transfer devices (VHTD)," Applied Energy, Elsevier, vol. 185(P2), pages 1120-1135.
    16. Balvís, Eduardo & Sampedro, Óscar & Zaragoza, Sonia & Paredes, Angel & Michinel, Humberto, 2016. "A simple model for automatic analysis and diagnosis of environmental thermal comfort in energy efficient buildings," Applied Energy, Elsevier, vol. 177(C), pages 60-70.
    17. Ucar, Aynur & Balo, Figen, 2010. "Determination of the energy savings and the optimum insulation thickness in the four different insulated exterior walls," Renewable Energy, Elsevier, vol. 35(1), pages 88-94.
    18. Amir, A. & van Hout, R., 2019. "A transient model for optimizing a hybrid nocturnal sky radiation cooling system," Renewable Energy, Elsevier, vol. 132(C), pages 370-380.
    19. Stevanović, Sanja, 2013. "Optimization of passive solar design strategies: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 25(C), pages 177-196.
    20. Rachana Vidhi, 2018. "A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models," Energies, MDPI, vol. 11(11), pages 1-24, October.

    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:eee:renene:v:35:y:2010:i:1:p:36-41. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.