 ProLog is a complete control system for climate-adapted sprinkling of saw timber and pulpwood. The control system and its functions consist of technology, which has been both practically and scientifically evaluated during several years of research. ProLog has been developed in co-operation with the forest industry, resulting in an effective and environmentally friendly method of sprinkling roundwood. ProLog controls the sprinkling by taking into account the local climate at the mill. The climate is monitored using a climate station, built of high quality components, which will guarantee accurate measurements of the climate data required for the control function. These data are air temperature, relative humidity, insolation and wind speed. The climate data determine the evaporation capacity of the roundwood stored at the wood yard. Thus, the climate data is continuously used for calculations of the sprinkling intensity. The measurements are updated several times per minute, so that the sprinkling is able to closely follow the evaporation dynamics, i.e., the theoretical need of water in a roundwood pile. ProLog has been designed based on results achieved in connection with a comprehensive research project mutually undertaken by the Nordic countries. This means that both the environmental and wood quality effects, resulting from the climate-adaptation, have been thoroughly examined and documented. Scientific results show that climate-adapted sprinkling can prevent the negative influence of wet storage on the environment. Therefore, ProLog has been accepted by environmental authorities in Sweden as a suitable technology when assessing the environmental impact on the forest industry. ProLog offers an economic and raw material friendly alternative to sprinkling plants with recycling of sprinkling water. |
