The theme of this paper is the design of an intelligent coordinator (IC) of fuzzy controller-agents (FCAs) to control indoor environmental conditions in buildings by using a 3-D fuzzy comfort set. The basic factors that participate in the control of indoor environmental conditions are the controllers and users’ comfort requirements. Harmonization of these factors results in energy saving, and o...

Building Energy Performance (BEP) simulation model require significant effort for set up, limiting the potential utilization of modelling both in the design and operational phases. A methodology for semiautomated BEP simulation model creation could make this process much more expedient and as such lower to threshold for the use of such models. Building Information Models (BIM) are an informatio...

A single performance indicator, the solar transmittance factor (STF), has been proposed in previous works, together with derived index (STI). It is aimed at evaluating summer of roofing system and allowing selection most effective mix surface mass properties. easily calculated from low-level indicators such as U-value, module periodic thermal transmittance, reflectance. In present work, correla...

 In the preset study, the performance of a solar assisted heating, ventilation and air conditioning (HVAC) system in an operating theater building was studied. The yearly performances of the existing HVAC system and the system with the added solar collectors were simulated in terms of energy consumption and provided air conditions using a transient system simulation software (TRNSYS). In t...

The building sector represents approximately 40% of the global energy consumption, which 18 to 73% is represented by heating and ventilation. One focus research for reducing consumption study interaction between system, occupant’s behaviour, building’s thermal mass. For this purpose, a new experimental facility was developed. It consists real accommodation in performance envelope, room’s layout...

Exergy and energy analyses of two biodiesel production processes that integrate solar as the main source were developed to determine process with higher efficiency from an exergy approach. The simulated in ASPEN PLUS®, supply was studied TRNSYS®, using EXCEL® simultaneously for exergetic analysis. thermal collection system can 81% required by alkali Flash separation equipment. For supercritical...

This article deals with the possibility of using PCMs in cooling ceiling systems to reduce significantly air temperature fluctuations and energy demands for cooling. The PCM-based ceiling’s technical design was performed, a prototype realized this research. experimental verification proposed system performed determine actual parameters different operational modes their comparison same without P...

A model predictive control (MPC) system with an adaptive building based on thermal-electrical analogy for the hybrid air conditioning using radiant floor and all-air heating is proposed in this paper to solve supply difficulties of railway station Tibetan Plateau. The MPC controller applies off-line method updating improve accuracy predicting indoor conditions. performance compared proportional...

In the remote areas of northern China without central heating and gas supply, for users intending to replace coal-boilers, air-source heat pump system is always questionable due contradiction between its capacity user’s demand, especially in very cold areas, whose COP economy poor. The accumulator with phase change materials would be a promising one solve this problem. With help TRNSYS software...

Among solar passive systems integrated in buildings, sunspaces or solar greenhouses represent a very interesting solution. A sunspace is a closed, southbound volume, constituted by transparent surfaces, adjacent to a building, which reduces winter energy demand thanks to the use of solar gains. The effect of a typical solar greenhouse on the energy balance of a building was evaluated during the...