Abstract: The disclosure relates to determining condition data indicative of a blockage of a thermal unit of a heat pump system of a vehicle. The heat pump system can further comprise an air supply unit. A corresponding method can comprise receiving, by a controller comprising a processor, model data indicative of an air flow through the thermal unit and the air supply unit, wherein the model data is based on a model of the heat pump system, receiving, by the controller, measured data indicative of the air flow through the thermal unit and the air supply unit, wherein the measured data is measured via an airflow meter of the air supply unit, and determining, by the controller, the condition data based at least on the model data and the measured data.

Abstract: The invention relates to an installation for producing glued plant particles, in particular from annual plants (e.g. straw), in order to produce boards, e.g. fibreboards or chipboards, having at least one comminuting apparatus (2) for comminuting plant-based starting material to form scatterable plant particles, and having a gluing apparatus (15) for gluing the plant particles. This installation is characterized in that at least one first screening apparatus (3) for separating silicate particles from the plant particles is arranged between the comminuting apparatus (2) and the gluing apparatus (15).

Abstract: A laminar board having a base of bonded wood particles carrying a decorat facing is produced by sequentially moving a carrier web through a loading zone and a press zone. The carrier web consists essentially of paper impregnated with a synthetic resin composition and having a permeability to water vapor of at least 1000 g/m.sup.2 /day. A layer of loose wood particles intimately mixed with a bonding agent is superimposed on the carrier web in the loading zone, and the resulting layered material is subjected in the press zone to a temperature and pressure sufficient to bond the loose particles to each other by the bonding agent in a dense structure and simultaneously to bond the particles to the carrier web by the bonding agent and/or the synthetic resin composition.