It was found that the optimum working conditions vary according to different evaluation factors, the reasonable results should be determined according to specific needs. Finally, noon time of 12:00 was chosen as the time variable in the coupled simulation per month and per day in July and August to get the largest total exergy outputs. Not only the thermal exergy efficiency is larger with the increased solar irradiance, the higher solar irradiance is also preferred in the view of thermal exergy output. Great reusability for model geometry and. CFD, Artificial and naturali light simulations. A RNG ke model is used in this paper that is appropriate to characterize the ow eld in an air conditioning room 25. It will be combined with TRNSYS to co-simulate the operation and control process of HVAC system. The trend for the exergy economy and the exergy output is inversed. Trnsys reinfored building part quite well and it's updating building part annually. A TRNSYS-CFD quasi-dynamic coupled simulation method was employed for the analysis, whereby TRNSYS simulates the HVAC and PID control system and ANSYS FLUENT. CFD models The CFD model is used to calculate the indoor spatial temper-ature distribution.
However, the energy output is relatively larger under same condition. In terms of energy efficiency, the energy economy is worse when the solar irradiance is relatively higher. It was analyzed per hour, per month and per day based on the meteorological condition of Xi'an, a typical city in west China.
InGaP/GaAs/InGaAs solar cell under 50 times of concentration and inlet fluid velocity of 0.02 m.s(-1) was therefore employed for further one-step static TRNSYS-CFD coupled investigation. As the most imporatant economic index for the practical use of PV/T system, in terms of the overall exergy efficiency under 50 times concentrations and 0.08 m.s(-1) inlet velocity, the sequence was found to be InGaP/GaAs/ InGaAs (37.53%) > GaAs (29.62%) > GaInP (21.62%). Modeling using TRNSYS environment: TRNSYS is an environment, where a model is represented by a number of modules connected to each other using constant parameters, and input/output variables. between the indoor temperatures simulated by TRNSYS and those measured experimentally is. The influences of different kinds of solar cells and various parameters on the system performance have been systematically evaluated. is usually calculated via sophisticated simulators, e.g., CFD. In the present study, a 3D concentrated PV/T model was built and its photovoltaic/thermal system performances were investigated by a coupled TRNSYS and CFD simulation method. Hybrid photovoltaic/thermal (PV/T) solar collectors can theoretically be designed to operate at near 80% in combined efficiency and has therefore been received ever increasing attention.