Laboratory experiment on using non-floating body to generate electrical energy from water waves

doi:10.1007/s11708-012-0210-1

Front Energ

2012, Vol. 6

Issue (4) : 361-365 https://doi.org/10.1007/s11708-012-0210-1

RESEARCH ARTICLE

Laboratory experiment on using non-floating body to generate electrical energy from water waves

Arunachalam AMARKARTHIK¹(

), Srinivasan CHANDRASEKARAN², Karuppan SIVAKUMAR¹, Harender SINHMAR²

1. Bannari Amman Institute of Technology, Erode 638401, India; 2. Indian Institute of Technology Madras, Chennai 600036, India

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Abstract

This paper describes an innovative method of using a non-buoyant body to harness ocean waves. All the point absorbers are buoyant in nature and move up due to buoyancy and come down because of gravity. The point absorbers are designed to move along the waves to make the device efficient. These devices face excessive stress during the rough weather on account of the extreme motion of waves and cause the total device failure. The present study shows that using a non-buoyant body for conventional point absorber principle is much efficient and safer than any other device proposed till today. A small scale wave energy converter with non-buoyant body was designed, fabricated and tested in small scale wave maker. An electrical generator was coupled with the device to generate electrical energy from harnessed waves. The generator was electrically loaded and the generated power was measured. It was found from the experiments that the proposed device showed a significant improvement in electricity generation and safety during extreme conditions. In addition to the electricity generation, the characteristics of the device were also studied by using various wave and device parameters.

Keywords ocean wave energy point absorbers heaving body non-floating object heave response ratio electrical energy generation

Corresponding Author(s): AMARKARTHIK Arunachalam,Email:a.amarkarthik@gmail.com

Issue Date: 05 December 2012

Cite this article:

Arunachalam AMARKARTHIK,Karuppan SIVAKUMAR,Harender SINHMAR, et al. Laboratory experiment on using non-floating body to generate electrical energy from water waves[J]. Front Energ, 2012, 6(4): 361-365.

URL:

https://academic.hep.com.cn/fie/EN/10.1007/s11708-012-0210-1
https://academic.hep.com.cn/fie/EN/Y2012/V6/I4/361

Fig.1 Experimental setup at IITM

Fig.2 Schematic view of oscillating arm

Fig.3 Impact of wave amplitude on generated power under 30 W loading

Fig.4 Impact of wave period of output shaft speed under 30 W loading

Fig.5 Performance of device under 60 W electrical loading

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[1]	Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK. A review on front end conversion in ocean wave energy converters[J]. Front. Energy, 2015, 9(3): 297-310.
[2]	Srinivasan CHANDRASEKARAN, Arunachalam AMARKARTHIK, Karuppan SIVAKUMAR, Dhanasekaran SELVAMUTHUKUMARAN, Shaji SIDNEY. Experimental investigation and ANN modeling on improved performance of an innovative method of using heave response of a non-floating object for ocean wave energy conversion[J]. Front Energ, 2013, 7(3): 279-287.

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