The optimum start-up of central air-conditioning based on neural network

The preheat time of central air-conditioning system preheating space is not only affect the comfort of environment, but also affect energy consumption. A preheat time model is established based on the thermodynamics principle, and an optimum stat-up algorithm of central air-conditioning system is proposed based on the NN(neural network), the simulation result shows that this method can predict the preheat time accurately which make central air-conditioning system save energy.