scholarly journals Energy consumption reduction at all stages of residential buildings life cycle by means of queuing systems

2018 ◽  
Vol 193 ◽  
pp. 05043 ◽  
Author(s):  
Valeriy Mishchenko ◽  
Sergei Kolodyazhniy ◽  
Elena Gorbaneva
Keyword(s):  
Energy Consumption ◽  
Carbon Emissions ◽  
Energy Efficient ◽  
Residential Buildings ◽  
International Energy Agency ◽  
Intergovernmental Panel ◽  
Energy Agency ◽  
Energy Consumption Reduction ◽  
Consumption Reduction ◽  
Global Carbon

Buildings are the largest source of carbon emissions and energy consumption around the world. Currently, the construction sector focuses on energy efficient and carbon emission reduction technologies to reduce the effect of a green house and improve the environment. The energy aspects of buildings depend on the early design process. The energy consumed by the building can be reduced to 80% by optimizing the orientation, the shape of the building, the insulation and ventilation during the design and management of the facilities after the completion of the construction. The reductions of energy consumption are fundamental to the International Energy Agency (IEA) goal, which is to reduce global carbon emissions by 77% against the projected data for 2050 to achieve the stabilized CO2 level provided by the Intergovernmental Panel on Climate Change (IPCC). In this issue, research and development of energy-efficient technologies are important, which play a crucial role in reducing initial costs and increasing energy conservation. To do this, it is recommended to use simulation modeling of the queue management system, which has practical application for both large systems and for private systems.

Energy efficient lighting and energy management

2006 ◽  
Vol 17 (4) ◽  
pp. 33-38
Author(s):  
WLO Fritz ◽  
MTE Kahn
Keyword(s):  
Energy Consumption ◽  
Energy Management ◽  
Energy Efficient ◽  
Electrical Engineering ◽  
Priority List ◽  
Energy Consumption Reduction ◽  
Cape Peninsula ◽  
Consumption Reduction ◽  
Reduction Methods ◽  
Lighting Systems

Energy management and the application of energy consumption reduction methods is high on the priority list of South Africa’s electrical supply utility, Eskom. One of Eskom’s Demand Side Management (DSM) recovery plan steps was the establishment of a subsidy programme for energy auditing and energy efficient lighting. A need arose to implement new lighting designs and to improve existing lighting systems. These improved lighting systems are used as recommendations in Energy Audits to achieve lighting efficiency and energy consumption reduction. It also highlights and promotes cost effective designs and energy management. New and better lighting methods are developed and researched to increase returns, domestically and in industry. This also highlights the importance of energy consumption reduction. This paper also discusses an Energy Audit conducted at a school in Worcester by the Service Learning and Development (SLD) unit of the Cape Peninsula University of Technology, Electrical Engineering Department in Bellville. The SLD delivers a service to the community, to improve their standard of living and to provide training to electrical engineering students. The aim of the project was to recommend energy consumption reduction methods.

Energy consumption reduction proposals for thermal systems in residential buildings

2018 ◽  
Vol 175 ◽  
pp. 121-130 ◽  
Author(s):  
Mónica Calero ◽  
Enrique Alameda-Hernandez ◽  
Mercedes Fernández-Serrano ◽  
Alicia Ronda ◽  
M. Ángeles Martín-Lara
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Thermal Systems ◽  
Energy Consumption Reduction ◽  
Consumption Reduction

scholarly journals Power Yoga: Variable-Stretch Security of CCM for Energy-Efficient Lightweight IoT

2021 ◽  
pp. 446-468
Author(s):  
Emiljano Gjiriti ◽  
Reza Reyhanitabar ◽  
Damian Vizár
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Practical Interest ◽  
Black Box ◽  
Communication Overhead ◽  
Authenticated Encryption ◽  
Wireless Sensor Node ◽  
Power Devices ◽  
Energy Consumption Reduction ◽  
Consumption Reduction

The currently ongoing NIST LWC project aims at identifying new standardization targets for lightweight authenticated encryption with associated data (AEAD) and (optionally) lightweight cryptographic hashing. NIST has deemed it important for performance and cost to be optimized on relevant platforms, especially for short messages. Reyhanitabar, Vaudenay and Vizár (Asiacrypt 2016) gave a formal treatment for security of nonce-based AEAD with variable stretch, i.e., when the length of the authentication tag is changed between encryptions without changing the key. They argued that AEAD supporting variable stretch is of practical interest for constrained applications, especially low-power devices operated by battery, due to the ability to flexibly trade communication overhead and level of integrity.In this work, we investigate this hypothesis with affirmative results. We present vCCM, a variable-stretch variant of the standard CCM and prove it is secure when used with variable stretch. We then experimentally measure the energy consumption of a real-world wireless sensor node when encrypting and sending messages with vCCM and CCM, respectively. Our projections show that the flexible trade of integrity level and ciphertext expansion can lead up to 21% overall energy consumption reduction in certain scenarios. As vCCM is obtained from the widely-used CCM by a black-box transformation, allowing any existing CCM implementations to be reused as-is, our results can be immediately put to use in practice. vCCM is all the more relevant because neither the NIST LWC project, nor any of the candidates give a consideration for the support of variable stretch and the related integrity-overhead trade-off.

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