“…In sources [13] and [14], equations for the determination of the heat transfer coefficients through the Trombe wall are given. The source [15,16,17] also gives an equation for the determination of the air temperature change along the ventilated air gap of the Trombe wall. However, these equations do not allow the calculation of the heat transfer and air movement in the case when venetian blinds (reflecting or absorbing solar radiation) are installed in the ventilated air space.…”