The article presents the operation and structure of a dispersion adhesive applicator dedicated for printing industry. Contrary to the currently used solutions in which the length of the glue layer is defined by the geometry of the glue roller, the original device enables free formation of the relation between the bonding area and adhesive-free areas. Based on the analysis of geometrical and time dependencies characterising the designed device, a mechatronic control system was developed to enable repeated glue application synchronised with the markers commonly used in printing industry and applied onto the paper. Constructed based on a programmable PLC controller, the system has control over all crucial technological parameters of the process (temperature, glue amount, beginning and end of the bonding area). The user-device communication is interactive, and therefore an additional user panel (touch-screen) is employed. The developed solution was used for applying dispersion adhesives in a technological line for producing multilayer ID cards with RFID labels.
The article presents the use of thermographic technique as a method used to study the temperature distribution on the surface of the elements of a prototype system for testing air-handling units with heat recovery. Based on the research methodology of prototype devices developed at the Institute for Sustainable Technologies – National Research Institute, the system’s components constituting a potential source of failure connected with thermal insulation were identified. The article presents the infrared testing results of thermal imaging for a calorimeter chamber recreating real working conditions of a recuperation station and conduits linking the scrutinized stations tested with the chambers. The use of thermography to diagnose failure spots in the thermal insulation of housings, thermal bridges, and leakages of recuperators is described. The results were used to determine the actions to improve the energy consumption index of the station.
Currently, nearly 1.5 M tons of different types of glassware are produced in Poland, and the majority of it is used as packaging in the food, cosmetic, and pharmaceutical industries. The article presents a method for testing impact resistance of glassware, which was developed at the ITeE-PIB. The authors also present a prototype of a device for glassware tests, discuss a test procedure applied in such tests, and show the results of verification tests for which a high-speed digital camera was used to record the impact strength and the propagation of cracks in glassware. The device in question has been successfully implemented in an industrial research laboratory.
The increasing prices of energy and the drive to reduce the emission of greenhouse gases into the atmosphere observed in the recent years have contributed to the intensive development of research on how to reduce the energy consumption of buildings. The confirmations of the current trends are the formal and legal regulations of the European Union that require the buildings to be passive and “zero-energy” in the near future. The introduction of new elements helping one to save energy in the structure of a building requires their formal verification and the confirmation of their safety, effectiveness, and parameters crucial from the point of their application in residential buildings and offices. The authors present an original prototype of an innovative device and a methodology of conducting studies on air-handling units with heat recuperation used in passive and energy-saving buildings. They also discuss the structure and the modus operandi of the system that reconstructs the actual operating conditions of a tested object. The system was used for tests on the tightness of several air-handling units, which also aimed at the verification of their thermal efficiency and the effectiveness of the recuperation of humidity. Air-handling unit tests came from different manufacturers, and they all had the function of heat recuperation. The authors present the results of their investigations that enabled the assessment of the safety of the objects tested, and they also facilitated the comparison of their performance parameters deciding on the energy effect. The tests also formed the foundation for the verification of the developed research system.
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