Dual ducting: An innovation to increase the use of daylight in buildings

Mayhoub, M. S.
October 2015
Lighting Research & Technology;Oct2015, Vol. 47 Issue 6, p712
Academic Journal
Daylight guidance systems deliver daylight into remote parts of buildings. However, they still lack market penetration. The primary difficulty lies within the installation process. Daylight guidance systems use light ducts to distribute daylight, which occupy significant amounts of space. The integration of light ducts and heating, ventilation and air conditioning ducts is a promising solution. This study compares the differences and similarities of the two ducting systems, suggests an integrated system and evaluates the potential of and challenges faced by the proposed dual ducting system. A schematic application is completed and demonstrates that the dual ducting system has the economic potential to reduce costs, avoid conflicts between building systems and simplify the installation of daylight guidance systems.


Related Articles

  • Pulley Police. Eiler, Donald J.; Ivanovich, Michael G. // Heating/Piping/Air Conditioning Engineering;Mar2004, Vol. 76 Issue 3, p15 

    Presents information on the heating, ventilation and air conditioning (HVAC) system of a research facility. Features of the HVAC system; Background on the fan speed and diameters of the pulleys of the air handler; Details of the replacement of the fan curves of the HVAC system.

  • What Is the Cost of a Pleated Air Filter? Cieslak, Stephen // Air Conditioning Heating & Refrigeration News;3/19/2007, Vol. 230 Issue 12, p10 

    The article provides several tips on how contractors can determine the most cost-effective pleated air filter based on clients' budget goals in the U.S. Key factors to consider in evaluating air filters include price, quality, performance and serviceability. These factors will enable contractors...

  • Moisture In Homes. Snyder, Dawn R. // Air Conditioning Heating & Refrigeration News;5/3/2004, Vol. 222 Issue 1, p23 

    Answers a reader's question on minimizing the damage caused to air conditioning systems by a moisture problem at a home that tends to have an above-average humidity level. Taking steps to curtail winter time air circulation through the air conditioning ducts; Wrapping the inlet air filter in...

  • Heat Recovery Ventilators.  // Air Conditioning, Heating & Refrigeration News;3/20/2006, Vol. 227 Issue 12, p9 

    The article features the Tradewindsâ„¢ Compact120 and Tradewindsâ„¢ Compact120D heat recovery ventilators from NuTech Brands Inc. Both units were suited for high-rise condominiums, hotels, and apartments. They have a thermally conductive aluminum core, an independent motorized impeller,...

  • Whole-Home Air Cleaners are Changing. Frank, John E. // Air Conditioning, Heating & Refrigeration News;4/21/2008, Vol. 233 Issue 17, p20 

    The article focuses on the changes to be done in the whole-home air cleaners market in the U.S. given the gap between whole-home air cleaner and the portable air cleaner. One of the changes is the need for manufacturers to provide consumers with a way to interact and control whole-home air...

  • what's NEW.  // Air Conditioning, Heating & Refrigeration News;5/24/2004, Vol. 222 Issue 4, p8 

    Features several products related to the heating, ventilation, air conditioning and refrigeration industry. Home comfort system; Gas detection sensor transmitter; Sun control systems; Air purifier.

  • Air-Filter Life-Cycle Cost. Seyffer, Charles J. // Heating/Piping/Air Conditioning Engineering;Sep2010, Vol. 82 Issue 9, p42 

    The article discusses the substantial impact of air filters on heating, ventilation, and airconditioning (HVAC)-system performance despite of its disposability, as well as its major impact on the cost of maintenance and energy use. It mentions fundamental factors to be considered in the...

  • Modeling Filter Bypass: Impact on Filter Efficiency. Ward, Matthew; Siegel, Jeffrey // ASHRAE Transactions;2005, Vol. 111 Issue 1, p1091 

    Current models and test methods for determining filter efficiency ignore filter bypass, the air that circumvents filter media because of gaps around the filter or filter housing. In this paper, we develop a general model to estimate the size-resolved particle removal efficiency, including...

  • Impacts of Air Filters on Energy Consumption in Typical HVAC Systems. Nassif, Nabil // ASHRAE Transactions;2012, Vol. 118 Issue 2, p74 

    Filters are used in HVAC systems for both commercial and residential buildings to protect the equipment and improve indoor air quality in conditioned spaces. Although there are many benefits of using the air filter in an air conditioning system, the resistance associated with it can increase fan...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics