In this paper, a detailed combined 1-D model of HVAC systems vehicle were developed by using the LMS imagine LAB AMESIM software package. The numerical simulations considered for soaking and cool down analysis under different environmental conditions. thermal performance refrigerants as R-134a R-1234yf evaluated in terms energy consumption. According to simulation results, cabin air temperature...

Even though many approaches have been proposed for automated fault detection and diagnosis of Heating Ventilation and Air Conditioning (HVAC) systems, and advanced maintenance programs, such as preventive and predictive maintenance have been applied for the systems, issuing work orders for corrective maintenance is still a reality. Currently corrective maintenance still accounts for more than 5...

Heating, ventilation and air-conditioning (HVAC) is the largest consumer of electricity in commercial buildings. Consumption is impacted by group activities (e.g. meetings, lectures) and can be reduced by scheduling these activities at times and locations that minimize HVAC utilization. However, this needs to preserve occupants’ thermal comfort and be responsive to dynamic information such as n...

Heating, Ventilation and Air-Conditioning (HVAC) systems account for more than 15% of the total energy consumption in the US. In order to improve the energy efficiency of HVAC systems, researchers have developed hundreds of algorithms to automatically analyze their performance. However, the complex information, such as configurations of HVAC systems, layouts and materials of building elements a...