ANALYSIS OF ADAPTIVE FRICTIONAL CONTACT SOLID BODIES WITH INDIRECT REGULATION

Dependencies were found for determining the values of the parameters of the automatic control unit of the adaptive friction contact with indirect control, which allow stabilizing its output parameter. Profiling of the side walls of the sockets of the automatic control unit of the adaptive friction contact isperformed, which allows to exclude the influence of the coefficient of friction on the output parameter.

Automatic Control Unit for Air-Condition System in Building

Electrical energy usage has been rapidly increased in the building sector due to shifting in population from rural to urban area. In the building, Heating, ventilation, and air conditioning (HVAC) system. Especially air-condition system has taken the most substantial proportion of overall building energy consumption. This result from a large amount of energy must be used in order to provide a comfort zone for occupants in the building. So, this paper aims to proposed design and built prototypes of air-condition control unit that can automatically operate according to schedule. The prototypes using a wireless module to send the control signal to the air-conditioning unit. Specific software has been built to set the desired operating schedule and duration of an operation. The performance of the proposed unit will be evaluated using an experiment on actual field test by installing on actual air-condition in the case study building. The result has shown that the proposed unit can reduce energy usage in air-conditioning significantly compare with little cost for the controller unit.