Abstract: A finite element program has been written to solve the three-dimensional Fourier equation for the periodic annual temperature field in the ground surrounding an earth tube connected to the ...

Abstract: An algorithm based on daily hours of bright sunshine has been developed and used to evaluate the performance of active solar heating systems for different values of system parameters (collector ...

Abstract: Centrifugal fans with an electric motor included in the hub are commonly used in HVAC (heating, ventilation, and air conditioning) systems. A design of experiments (DOE) has been performed to ...