| 摘要 |
<p>It is shown that for any cattle-shed space, it is possible to establish a ventilation control in accordance with the more-or-less important criterion that the air in the shed is held as dry as possible, in that on the other hand it can be accepted that a relatively great variation occurs in the temperature of the air in the shed. Use can be made of a simple control of the air intake and air outlet respectively in the whole of this range of variation for the regulation of the change of air to achieve a characteristic, shed-determined difference in temperature between the outside air and the air in the shed, with which difference the air in the shed will show a least degree of moisture content. <IMAGE></p> |
