Paper Conference

Proceedings of Building Simulation 2009: 11th Conference of IBPSA

     

MODELING FENESTRATION WITH SHADING DEVICES IN BUILDING ENERGY SIMULATION: A PRACTICAL APPROACH

Bartosz A. Lomanowski, John L. Wright

DOI: https://doi.org/10.26868/25222708.2009.0976-983
Abstract: The use of operable shading devices impacts building loads significantly. The need exists for an explicit treatment of window shading devices in the design of energy efficient buildings through simulation. A general framework for modeling complex fenestration systems has recently been implemented in ESP-r. The underlying models have been developed with emphasis on computational efficiency and straightforward input requirements. The capabilities, which currently include modeling of slat-type blinds in any arrangement between glazing layers, are summarized and an overview of the solar optical and thermal models is given. An analysis of slat-type blind models was carried out comparing the complex fenestration facility in ESP-r to slat-type blind models in EnergyPlus. Simulations were conducted for a test cell with a south facing window. The results show good agreement between the two simulation programs. Considering the complicated nature of shading layer modeling, the new complex fenestration facility in ESP-r yielded encouraging results in this preliminary study.
Pages: 976 - 983
Paper:
bs2009_0976_983