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The energy saving potential of current VAV systems can still be improved through control methods, the use of predictive models, and sensor calibration methods. In conclusion, the VAV terminal unit system is one of the most energy efficient systems. The possibility of developing a method for calibrating the variable air volume terminal unit sensor using the prediction model was confirmed. To solve this problem, sensor calibration techniques have been developed using statistical models, mathematical models, and Bayesian statistical models. The VAV terminal unit system uses a sensor to control the device, and when an error occurs in the sensor, indoor comfort problems and energy waste occur. #Building airflow standard calculator professionalThe mathematical model has a limitation in collecting input information for professional knowledge and model development, and development of a building environment prediction model using a black box model is being studied. The mathematical model used in the study of VAV terminal unit control methods was used to derive set values for minimum air volume, supply temperature, ventilation requirements, and indoor comfort. #Building airflow standard calculator verificationAs a result of analyzing the existing research trends on the system type, characteristics, and control method of VAV terminal units studies such as theoretical verification and energy simulation were conducted to improve the existing control methods, reset the set value using a mathematical model, and add a monitoring sensor for the application of control methods. Rocks or bricks can be laid on top of the sheets to hold them in place.This study reviewed the existing studies on the types of variable air volume (VAV) terminal units, control and operation methods, prediction models, and sensor calibration methods. Polythene should be laid with sheets lapped by 100 mm, cut neatly around piles and closely butted against the perimeter wall. #Building airflow standard calculator installIf the subfloor is still damp install more vents or cover all the ground under the building with polythene sheeting.
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