AN ENERGY CONVERSION SYSTEM

摘要

The present invention relates to an energy conversion device including a roofing material, characterised in that the roofing material includes a covered channel through which fluid can flow, the channel configured such that a ratio of the cross sectional area of the channel to the length of a perimeter of the cross section of the channel is less than 8 mm. In another embodiment of the present invention there is an energy conversion device including: a roofing material configured to accept a panel; at least one panel configured to include at least one covered channel through which fluid can flow; wherein the panel is bonded directly or indirectly to the roofing material, characterised in that the covered channel is configured such that a ratio of the cross sectional area of the covered channel to the length of a perimeter of the cross section of the covered channel is less than 8 mm.