Info-communication system for monitoring and control of heat supply to buildings and premises

Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia

^* Corresponding author: aleksei.v.pugovkin@tusur.ru

Abstract

The article considers the control of heat supply to individual premises in the modes of switching premise temperature during the day in order to optimize the supply of heat energy and save energy resources. The author considers theoretical and practical works of other teams and authors on this problematic. The article states thermal processes do not adequately account for inertia. The author proposes an approach to solving this problem based on the application of a simple mathematical model considering the heat capacity of the premises, the temperature of the external environment, and the heat transfer coefficient from the premises to the external environment. The paper proposes modeling in the premise heating mode and in the air-conditioning mode. The transition process from the stationary state to the operating state, as defined by SanPin rules, takes approximately 1.5 hours. The character of the transition process is exponential. The author conducted experimental studies in the educational laboratory of the university on the installation containing temperature sensors, a heater, air conditioner, microcontroller, server and relay based on a smart socket. They also developed the software. The air conditioning mode focused on the stages of turning on the air conditioner (cooling down), going to steady-state, and heating (turning on the air conditioner). The experimental dependencies agree well with the theoretical ones. The influence of solar radiation explains a slight discrepancy on the thermal regime of the premise. The article suggests viable options for improving the method: considering heat emissions because of the presence of people, electrical equipment operation, solar and wind loads.