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Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building

Recently, the exploitation of renewable energy resources has been underlined in high-rise buildings and the contribution of buildings in energy conservation has witnessed increased advances in recent years in both residential and commercial sectors. Buildings account for 40% of the world’s energy co...

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Main Author: Al Kubaisi, Yasir Mahmood
Format: Thesis
Language:English
Published: 2020
Subjects:
Gravitational fields
Parking lots
Renewable energy sources - Case studies
Online Access:http://psasir.upm.edu.my/id/eprint/93106/1/FK%202020%20105%20IR.pdf
http://psasir.upm.edu.my/id/eprint/93106/
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spelling my.upm.eprints.931062022-06-07T02:40:45Z http://psasir.upm.edu.my/id/eprint/93106/ Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building Al Kubaisi, Yasir Mahmood Recently, the exploitation of renewable energy resources has been underlined in high-rise buildings and the contribution of buildings in energy conservation has witnessed increased advances in recent years in both residential and commercial sectors. Buildings account for 40% of the world’s energy consumption and the multilevel car park is a part of many of these buildings. Therefore, developing an efficient, reliable, and cost-effective systems are crucial in such high-consumption buildings. Gravitational energy has a wide historical knowledge. One of that promising improvement of electrical energy is to use the potential energy of moving-down objects in high buildings. In this work addresses exploiting the gravitational energy of moving down mass for vehicles by designing a mechanical structure named as Gravitation Energy Harvester (GEH). Applying a methodology based on three basic aspects; Firstly, designing a (GEH) structure of a scaled-down prototype for the actual system describing the mechanism of the energy harvesting, which is inspired by the elevator structures. The rotational source was offset mass was anchored on the rotor pulls and rub to create torque. This produces a relative angular speed between the rotor and stator of the DC generator, which causes the power to be generated. Secondly, developing energy optimization criteria by adopting a multistage braking system inspired by regenerative brake systems, this mechanism provides braking for the climbed down vehicles while aggregating more energy by adding electrical loads in each stage through the moving down period. Thirdly, modeling of electrical and mechanical parameters for the presented system such that the system performance matching the model, this process is performed by using a parameter optimization algorithm. For this purpose, the experimental measurements of the (GEH) structure conducted under different weights and different scenarios of operations, with and without braking mechanism. The measurements of the harvested power and energy show different profiles depending mainly on the weight values and the availability of the braking mechanism. Therefore, the presented (GEH) is able to generate 57.996 J when applying a Multi-Stage Braking System (MSBS) and 38.226 J without MSBS. The results showed that, 34.09% energy and 6.58% delay time have been improved using the proposed system and proposed optimised mass at 3.5 kg. Based on the MSBS experiment, the parameters used are being applied in developing an optimization model; both results are compared and obtained an 8.2% error. Thus, using the optimization model for estimating the real application of a high building (20 m) and vehicle mass (1500 kg) of 100 car spaces have generated 11.09 KWH harvesting energy that able to cover the electrical consumption of the parking building. 2020-07 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/93106/1/FK%202020%20105%20IR.pdf Al Kubaisi, Yasir Mahmood (2020) Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building. Doctoral thesis, Universiti Putra Malaysia. Gravitational fields Parking lots Renewable energy sources - Case studies
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
topic Gravitational fields
Parking lots
Renewable energy sources - Case studies
spellingShingle Gravitational fields
Parking lots
Renewable energy sources - Case studies
Al Kubaisi, Yasir Mahmood
Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
description Recently, the exploitation of renewable energy resources has been underlined in high-rise buildings and the contribution of buildings in energy conservation has witnessed increased advances in recent years in both residential and commercial sectors. Buildings account for 40% of the world’s energy consumption and the multilevel car park is a part of many of these buildings. Therefore, developing an efficient, reliable, and cost-effective systems are crucial in such high-consumption buildings. Gravitational energy has a wide historical knowledge. One of that promising improvement of electrical energy is to use the potential energy of moving-down objects in high buildings. In this work addresses exploiting the gravitational energy of moving down mass for vehicles by designing a mechanical structure named as Gravitation Energy Harvester (GEH). Applying a methodology based on three basic aspects; Firstly, designing a (GEH) structure of a scaled-down prototype for the actual system describing the mechanism of the energy harvesting, which is inspired by the elevator structures. The rotational source was offset mass was anchored on the rotor pulls and rub to create torque. This produces a relative angular speed between the rotor and stator of the DC generator, which causes the power to be generated. Secondly, developing energy optimization criteria by adopting a multistage braking system inspired by regenerative brake systems, this mechanism provides braking for the climbed down vehicles while aggregating more energy by adding electrical loads in each stage through the moving down period. Thirdly, modeling of electrical and mechanical parameters for the presented system such that the system performance matching the model, this process is performed by using a parameter optimization algorithm. For this purpose, the experimental measurements of the (GEH) structure conducted under different weights and different scenarios of operations, with and without braking mechanism. The measurements of the harvested power and energy show different profiles depending mainly on the weight values and the availability of the braking mechanism. Therefore, the presented (GEH) is able to generate 57.996 J when applying a Multi-Stage Braking System (MSBS) and 38.226 J without MSBS. The results showed that, 34.09% energy and 6.58% delay time have been improved using the proposed system and proposed optimised mass at 3.5 kg. Based on the MSBS experiment, the parameters used are being applied in developing an optimization model; both results are compared and obtained an 8.2% error. Thus, using the optimization model for estimating the real application of a high building (20 m) and vehicle mass (1500 kg) of 100 car spaces have generated 11.09 KWH harvesting energy that able to cover the electrical consumption of the parking building.
format Thesis
author Al Kubaisi, Yasir Mahmood
author_facet Al Kubaisi, Yasir Mahmood
author_sort Al Kubaisi, Yasir Mahmood
title Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
title_short Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
title_full Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
title_fullStr Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
title_full_unstemmed Gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
title_sort gravitational energy harvesting system based on multistage braking technique for multilevel elevated car parking building
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/93106/1/FK%202020%20105%20IR.pdf
http://psasir.upm.edu.my/id/eprint/93106/
_version_ 1735388326035193856
score 13.211869

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