Distribution of solar radiation in glazed spaces and adjacent buildings. A comparison of simulation programs

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Distribution of solar radiation in glazed spaces and adjacent buildings. A comparison of simulation programs. / Wall, Maria.

I: Energy and Buildings, Vol. 26, Nr. 2, 1997, s. 129-135.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Distribution of solar radiation in glazed spaces and adjacent buildings. A comparison of simulation programs

AU - Wall, Maria

PY - 1997

Y1 - 1997

N2 - Energy simulation programs are commonly used to calculate the climate and energy requirements in glazed spaces and adjacent buildings. However, these programs have usually been developed to study buildings with ordinary window sizes. Comparisons of four simulation programs were carried out for a sunspace with an adjacent room. The distribution of solar radiation between the glazed space and the adjacent room as well as the portion of short wave radiation lost to the outside were studied. The programs show very large differences. The more simple calculation methods overestimate the utilization of solar radiation. This means that the temperature in the glazed space and also cooling requirements will be overestimated. In addition, heating requirements will be underestimated. The investigation shows that simulations of glazed spaces must be based on a geometrical description of the buildings, taking into account transmission through windows, reflection and absorption.

AB - Energy simulation programs are commonly used to calculate the climate and energy requirements in glazed spaces and adjacent buildings. However, these programs have usually been developed to study buildings with ordinary window sizes. Comparisons of four simulation programs were carried out for a sunspace with an adjacent room. The distribution of solar radiation between the glazed space and the adjacent room as well as the portion of short wave radiation lost to the outside were studied. The programs show very large differences. The more simple calculation methods overestimate the utilization of solar radiation. This means that the temperature in the glazed space and also cooling requirements will be overestimated. In addition, heating requirements will be underestimated. The investigation shows that simulations of glazed spaces must be based on a geometrical description of the buildings, taking into account transmission through windows, reflection and absorption.

KW - Simulation programs

KW - Solar radiation

KW - Glazed spaces

U2 - 10.1016/S0378-7788(96)01026-2

DO - 10.1016/S0378-7788(96)01026-2

M3 - Article

VL - 26

SP - 129

EP - 135

JO - Energy and Buildings

JF - Energy and Buildings

SN - 1872-6178

IS - 2

ER -