Environmental benefits of a Universal Mobile Charger and energy-aware survey on current products

Cucchietti, Flavio; Giacomello, Luca; Griffa, Gianluca; Vaccarone, Patrizia; Bolla, Raffaele; Bruschi, Roberto; d’Agostino, Luca

doi:10.1109/intlec.2011.6099888

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…In the case of Guvendik (2014), the charger in question is an optional one which can be purchased by the consumer; Fairphone do not supply a charger by default, citing that many users often have USB charging capability already available to them and do not require the extra, redundant accessory. This opens up an interesting question as to the allocation of charging resource for future consideration of mobile phone impact, or the benefits of universal chargers (Cucchietti et al 2011). In any case, the impact associated with the charger in the future will only diminish as they become ever more efficient in standby.…”

Section: Charger Specificationmentioning

confidence: 99%

Redefining scope: the true environmental impact of smartphones?

Suckling

Lee

2015

Int J Life Cycle Assess

101

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Purpose The aim of this study is to explore the literature surrounding the environmental impact of mobile phones and the implications of moving from the current business model of selling, using and discarding phones to a product service system based upon a cloud service. The exploration of the impacts relating to this shift and subsequent change in scope is explored in relation to the life cycle profile of a typical smartphone. Methods A literature study is conducted into the existing literature in order to define the characteristics of a Btypicalŝ martphone. Focus is given to greenhouse gas (GHG) emissions in different life cycle phases in line with that reported in the majority of literature. Usage patterns from literature are presented in order to show how a smartphone is increasingly responsible for not only data consumption but also data generation. The subsequent consequences of this for the balance of the life cycle phases are explored with the inclusion of wider elements in the potential expanded mobile infrastructure, such as servers and the network. Results and discussion From the available literature, the manufacturing phase is shown to dominate the life cycle of a Btypical^smartphone for GHG emissions. Smartphone users are shown to be increasingly reliant upon the internet for provision of their communications. Adding a server into the scope of a smartphone is shown to increase the use phase impact from 8.5 to 18.0 kg CO 2 -eq, other phases are less affected. Addition of the network increases the use phase by another 24.7 kg CO 2 -eq. In addition, it is shown that take-back of mobile phones is not effective at present and that prompt return of the phones could result in reduction in impact by best reuse potential and further reduction in toxic emissions through inappropriate disposal. Conclusions The way in which consumers interact with their phones is changing, leading to a system which is far more integrated with the internet. A product service system based upon a cloud service highlights the need for improved energy efficiency to make greatest reduction in GHG emissions in the use phase, and gives a mechanism to exploit residual value of the handsets by timely return of the phones, their components and recovery of materials.

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Section: Charger Specificationmentioning

confidence: 99%

Redefining scope: the true environmental impact of smartphones?

Suckling

Lee

2015

Int J Life Cycle Assess

101

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“…LVCMOS is the only IO standard, which takes less power when we ascent our design to latest FPGA [2]. Billion of new mobile handsets have been sold per annum, while nearly the same number of obsolete handset are being demolished, subscribe to the e-waste problem [3]. As a conclusion, [3] will also give some requirements on the main quality of Universal Mobile Charger [3].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Billion of new mobile handsets have been sold per annum, while nearly the same number of obsolete handset are being demolished, subscribe to the e-waste problem [3]. As a conclusion, [3] will also give some requirements on the main quality of Universal Mobile Charger [3]. In [4], Shoe power generator is discussed which is made of micro structured piezoelectric polymer transducer [4].…”

Section: Literature Reviewmentioning

confidence: 99%

Frequency Scaling Based Green Mobile Battery Charge Controller Sensor Design on FPGA

Kaur

Islam

Noor

et al. 2014

AMR

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Frequency Scaling based energy efficient MBCCS is implemented in this paper. In this design, if battery's voltage or current is less than threshold then battery will continue charging. Whereas, if voltage or current is more than threshold then it will ring Overcharge Alarm. With Frequency Scaling, we reduce frequency from 1THz to 25GHz, where 125GHz, 625GHz are intermediate frequency value. There is 97.50%, 100%, 97.54%, 97.48%, 20%, 96.48 % reduction in clock power (CP), logic power (LP), signal power (SP), IOs power (IOP), leakage power and total power dissipation respectively when we scale down frequency from 1 THz to 25GHz.

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Contributing Toward Green IoT: An Awareness-Based Approach

Mana

2019

Studies in Systems, Decision and Control

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Environmental benefits of a Universal Mobile Charger and energy-aware survey on current products

Cited by 4 publications

References 1 publication

Redefining scope: the true environmental impact of smartphones?

Redefining scope: the true environmental impact of smartphones?

Frequency Scaling Based Green Mobile Battery Charge Controller Sensor Design on FPGA

Contributing Toward Green IoT: An Awareness-Based Approach

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