A New Building-Integrated Wind Turbine System Utilizing the Building

Abstract

This paper proposes an innovative building-integrated wind turbine (BIWT) system by directly utilizing the building skin, which is an unused and unavailable area in all conventional BIWT systems. The proposed system has been developed by combining a guide vane that is able to effectively collect the incoming wind and increase its speed and a rotor with an appropriate shape for specific conditions. To this end, several important design issues for the guide vane as well as the rotor were thoroughly investigated and accordingly addressed in this paper. A series of computational fluid dynamics (CFD) analyses was performed to determine the optimal configuration of the proposed system. Finally, it is demonstrated from performance evaluation tests that the prototype with the specially designed guide vane and rotor for the proposed BIWT system accelerates the wind speed to a sufficient level and consequently increases the power coefficient significantly. Thus, it was confirmed that the proposed system is a promising environment-friendly energy production system for urban areas.

Renewable Energy Potential by the Application of a Building Integrated Photovoltaic and Wind Turbine System in Global Urban Areas

“…Park et al [43] proposed a BIWT module utilizing a building skin. The BIWT module consisted of a rotor and a guide vane, which is the key composition that changes the approaching wind conditions, such as low velocity or high static pressure, to be appropriate for rotor operation.…”

“…The proposed BIPvWt system, which is shown in Figure 3A, replaces a part of the guide vane with a silicon based PV. To determine the general form of the wind turbine system, the rotating direction of the rotor and the number and shape of the blades are considered using CFD analyses [43,[49][50]. The rotor's total power coefficient, including generator efficiency, was 0.149 [43].…”

“…To determine the general form of the wind turbine system, the rotating direction of the rotor and the number and shape of the blades are considered using CFD analyses [43,[49][50]. The rotor's total power coefficient, including generator efficiency, was 0.149 [43]. In addition, a silicon cell PV system installed on the guide vane can generate Pmax 300 Wp/module with a 15% conversion efficiency.…”

A Review of Numerical Modelling of Multi-Scale Wind Turbines and Their Environment

“…Several studies focused on the impact of surrounding buildings on the performance of BIWT [78][79][80][81][82]. Zhou et al [19] focused on finding the most efficient and effective design that could accelerate the speed of wind flow for wind turbines in low-rise residential buildings.…”

“…Yang et al [82] developed an assessment methodology based on CFD to identify the potential mounting locations of WTs and calculate the generation while considering the impact of the local terrain. The CFD model was validated with field experiments and the results of the realisable k-ε model agreed well with the experimental data.…”