The control strategy of temperature and humidity in the beer barley malt drying chamber based on fuzzy logic control was implemented. Expounded in this paper was the selection of parameters for the structure of the regulatory device, as well as the essential design from control rules based on the existing experience. A temperature fuzzy controller was thus constructed using relevant fuzzy logic...

The efficiency of plant production in a greenhouse depends significantly on the control of climate conditions. A system has been developed to control greenhouse climate. The thermodynamic relations between system variables have been modelled into a set of differential equations and a pseudo-derivative feedback controller is applied. Varying the desired indoor air temperature and humidity ratio ...

Introduction / objectives One of the variables which interfere in the maintenance of sterility in the materials is the storage. There are many official and not-official recommendations for temperature and air humidity control in the storage area, however without any theoretical or experimental basis. Some hospitals do not have a system that makes the control of temperature and humidity possible...

Sensitive materials, such as rocket propellants, can be placed in harsh environments of increased temperature and relative humidity (RH) to study the effects of environmental conditions over time in accelerated aging studies. Programmable ovens are common to research laboratories and can be used to regulate the temperature of the aging environment for long durations. Some commercial units inclu...

In small to medium scale buildings located in the subtropics, such as Hong Kong, direct expansion air conditioning (DX A/C) systems are widely applied. This is because, as compared to chilled water based central air conditioning systems, DX A/C systems are compact, flexible for multi-room services, energy efficient and cost less to maintain and operate. However, traditionally, a DX A/C system i...

Temperature and humidity are two highly coupled variables in a control system, which need to be decoupled for effective control. Moreover, the coupling problem may get more severe and the two control loops may produce a strong interference to each other that can cause system instability when the humidity is measured by dry-and-wet bulb method. In this study, a control method based on fuzzy-neur...