Next Article in Journal
Correction: Hu, Z.; et al. Transport and Deposition of Carbon Nanoparticles in Saturated Porous Media. Energies 2017, 10, 1151
Previous Article in Journal
An Optimized Prediction Intervals Approach for Short Term PV Power Forecasting
Previous Article in Special Issue
Using Modularity to Reduce Complexity of Industrialized Building Systems for Mass Customization
Article Menu
Issue 10 (October) cover image

Export Article

Open AccessReview
Energies 2017, 10(10), 1672; doi:10.3390/en10101672

Building Applications, Opportunities and Challenges of Active Shading Systems: A State-of-the-Art Review

Architectural Engineering Department, United Arab Emirates University, P.O. Box 15551 Al Ain, UAE
*
Author to whom correspondence should be addressed.
Academic Editor: Arman Hashemi
Received: 28 June 2017 / Revised: 2 August 2017 / Accepted: 4 August 2017 / Published: 23 October 2017
View Full-Text   |   Download PDF [8785 KB, uploaded 25 October 2017]   |  

Abstract

Active shading systems in buildings have emerged as a high performing shading solution that selectively and optimally controls daylight and heat gains. Active shading systems are increasingly used in buildings, due to their ability to mainly improve the building environment, reduce energy consumption and in some cases generate energy. They may be categorized into three classes: smart glazing, kinetic shading and integrated renewable energy shading. This paper reviews the current status of the different types in terms of design principle and working mechanism of the systems, performance, control strategies and building applications. Challenges, limitations and future opportunities of the systems are then discussed. The review highlights that despite its high initial cost, the electrochromic (EC) glazing is the most applied smart glazing due to the extensive use of glass in buildings under all climatic conditions. In terms of external shadings, the rotating shading type is the predominantly used one in buildings due to its low initial cost. Algae façades and folding shading systems are still emerging types, with high initial and maintenance costs and requiring specialist installers. The algae façade systems and PV integrated shading systems are a promising solution due to their dual benefits of providing shading and generating electricity. Active shading systems were found to save 12 to 50% of the building cooling electricity consumption. View Full-Text
Keywords: active shading systems; kinetic shading devices; smart glazing; rotating shading systems; folding shading systems; photovoltaic (PV); solar collector; algae façade system; controls active shading systems; kinetic shading devices; smart glazing; rotating shading systems; folding shading systems; photovoltaic (PV); solar collector; algae façade system; controls
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Al Dakheel, J.; Tabet Aoul, K. Building Applications, Opportunities and Challenges of Active Shading Systems: A State-of-the-Art Review. Energies 2017, 10, 1672.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top