A predictive and adaptive heating controller, using artificial neural networks to allow the adaptation of the control model to the real conditions (climate, building characteristics, user's behaviour) is described. The choice of a predictive control strategy, combined with the nonlinear modelling of the building, the user's behaviour and the weather prediction, allows the NEUROBAT controller to...

Abstract. The principle of the energy saving algorithm in buildings is based on lowering the night-time temperature and increasing (preheating) it in the morning. One important problem of this strategy consists in keeping peek demand of energy below the maximum power of the central energy source. A model-reference nonlinear predictive control algorithm is studied and the effects of peak power d...

Temperature Classifications..................................................... 12.1 CLOSED WATER SYSTEMS.................................................... 12.2 Method of Design ..................................................................... 12.2 Thermal Components ............................................................... 12.2 Hydraulic Components ...................................

The type of heating, ventilation and air conditioning (HVAC) system has a large impact on the heating and cooling energy consumption in multifamily residential buildings. This paper compares the energy performance of three HVAC systems: a direct expansion (DX) split system, a split air source heat pump (ASHP) system, and a closedloop water source heat pump (WSHP) system with a boiler and an eva...

Abstract Electric heating can not only relieve the pressure of municipal central but also help to solve problem wind and light abandonment, which is an important direction for future development heating. To maximize comprehensive benefits, this paper constructs three kinds electric systems. According benefit evaluation technical, economic, environmental aspects, optimal scheme selected. An offi...

We report an observation of rapid (exceeding 2,000 K/s) heating of polydimethylsiloxane (PDMS), one of the most popular microchannel materials, under cyclic loadings at high (~MHz) frequencies. A microheater was developed based on the finding. The heating mechanism utilized vibration damping in PDMS induced by sound waves that were generated and precisely controlled using a conventional surface...