The experimental study on the wind turbine's guide-vanes and diffuser of an exhaust air energy recovery system integrated with the cooling tower

被引：31

作者：

Chong, W. T. ^{[1
]}

Hew, W. P. ^{[2
]}

Yip, S. Y. ^{[2
]}

Fazlizan, A. ^{[1
,2
]}

Poh, S. C. ^{[1
]}

Tan, C. J. ^{[1
]}

Ong, H. C. ^{[1
]}

机构：

[1] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, UMPEDAC, Wisma R&D, Kuala Lumpur 59990, Malaysia

来源：

ENERGY CONVERSION AND MANAGEMENT | 2014年 / 87卷

关键词：

Cooling tower; Energy recovery; De-carbonization; Wind turbine; On-site energy generation; Renewable energy; HIGH-RISE APPLICATION; RENEWABLE ENERGY; FLANGED DIFFUSER; SOLAR; GENERATION; PERFORMANCE; HARVESTER;

D O I：

10.1016/j.enconman.2014.07.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An assembly of two vertical axis wind turbines (VAWTs) and an enclosure is installed above a cooling tower to harness the discharged wind for electricity generation. The enclosure consists of guide-vanes and diffuser-plates, is used to enhance the rotational speed of the turbines for power augmentation. The angle of the guide-vanes is optimized to ensure the oncoming wind stream impinges the rotor blades of the turbine at an optimum angle. The diffuser-plates are tilted at an optimum angle to increase the discharged airflow rate. The performance of the system is tested in the laboratory followed by a field test on an actual size cooling tower. The VAWF performance is increased in the range of 7-8% with the integration of enclosure. There is no significant difference in the current consumption of the fan motor between the bare cooling tower and the one with installed VAWTs. With the presence of this system, approximately 17.5 GW h/year is expected to be recovered from 3000 units of cooling towers at commercial areas, assuming the cooling tower is driven by a 7.5 kW fan motor and operates 16 h/day. This amount of recovered energy can also be translated into 13% reduction in CO2 emission. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：145 / 155

页数：11

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