| 摘要 |
<p>Method for making snow wherein snow is made within a closed environment (10) by discharging water droplets into a body of air (11) maintained by air conditioning means (20) at a temperature and humidity such as to turn the water droplets into snow, falling on to a surface (32, 33) including coolant pipes (25, 30) which are covered with a layer of snow (36), the coolant being at a lower temperature than the air temperature such that there is a temperature gradient in the snow layer of the order of 0.1 degrees centigrade per centimetre depth, whereby during the initial part of the process a small quantity of small droplets is discharged to provide nucleating particles, and thereafter a larger quantity of droplets is discharged and whereby incoming air (83) to be discharged into the body of air is drawn over cold surfaces (77, 78).</p> |
