scholarly journals Active RFID TAGs system analysis of energy consumption as excitable linear bifurcation system

2009 ◽  
Author(s):  
Ofer Aluf
Keyword(s):  
Energy Consumption ◽  
System Analysis ◽  
Rfid Tags ◽  
Active Rfid

Networked Wireless Sensors, Active RFID, and Handheld Devices for Modern Car Park Management

2015 ◽  
Vol 6 (3) ◽  
pp. 33-45 ◽  
Author(s):  
Djamel Djenouri ◽  
ElMouatezbillah Karbab ◽  
Sahar Boulkaboul ◽  
Antoine Bagula
Keyword(s):  
Energy Consumption ◽  
Wireless Sensors ◽  
Handheld Computers ◽  
Management Systems ◽  
Handheld Devices ◽  
Park Management ◽  
Proof Of Concept ◽  
Active Rfid ◽  
Car Park ◽  
The Cost

Networked wireless sensors, actuators, RFID, and mobile computing technologies are explored in this paper on the quest for modern car park management systems with sophisticated services over the emerging internet of things (IoT), where things such as ubiquitous handheld computers, smart ubiquitous sensors, RFID readers and tags are expected to be interconnected to virtually form networks that enable a variety of services. After an overview of the literature, the authors propose a scalable and lowcost car parking framework (CPF) based on the integration of aforementioned technologies. A preliminary prototype implementation has been performed, as well as experimentation of some modules of the proposed CPF. The results demonstrate proof of concept, and particularly reveal that the proposed approach for WSN deployment considerably reduces the cost and energy consumption compared to existing solutions.

scholarly journals Large System Analysis of the Energy Consumption Distribution in Multi-User MIMO Systems With Mobility

2015 ◽  
Vol 14 (3) ◽  
pp. 1730-1745 ◽  
Author(s):  
Luca Sanguinetti ◽  
Aris L. Moustakas ◽  
Emil Bjornson ◽  
Merouane Debbah
Keyword(s):  
Energy Consumption ◽  
System Analysis ◽  
Mimo Systems ◽  
Large System

Development of the Chilled Water System Analysis Tool for Assessing Energy Conservation Opportunities

2013 ◽  
Author(s):  
Ghanshyam Gaudani ◽  
Alex Quintal ◽  
Dragoljub Kosanovic
Keyword(s):  
Energy Consumption ◽  
Cost Reduction ◽  
Air Conditioning ◽  
System Analysis ◽  
Water System ◽  
Water Systems ◽  
Analysis Tool ◽  
Chilled Water ◽  
System Energy ◽  
Chilled Water System

Chilled water systems constitute a major portion of energy consumption in air conditioning systems of the large buildings and process cooling of the manufacturing plants. These systems do not operate optimally in most of the cases because of the operating parameters set and/or the components used. The Chilled water system analysis tool software (CWSAT) is developed as a primary screening tool for energy evaluation. This tool quantifies the energy usage of the various chilled water systems and typical measures that can be applied to these systems to conserve energy. The tool requires minimum number of inputs to analyze the component-wise energy consumption and incurred overall cost. Both air-cooled and water-cooled systems can be analyzed with this tool; however, this paper focuses on water-cooled systems. The tool uses weather data of the chilled water system location and loading schedules to calculate the chilled water system energy consumption. The Air-Conditioning and Refrigeration Institute (ARI) standard 550/590 typical loading schedule is also incorporated for the chiller(s) loading. The tool is capable of comparing economics by analyzing the energy consumption and relevant cost of the existing system and the new system with cost reduction opportunities considered like: (1) increase chilled water temperature set point, (2) lowering the condenser cooing water supply temperature set point, (3) replace chiller(s), (4) Apply variable speed control to chilled and/or condenser water pumps, (5) upgrade cooling tower fan speed control, (6) Use free cooling when possible for water-cooled systems. The savings can be calculated separately for each cost reduction opportunity or can be combined. The economics comparison can be a primary decision criterion for further detailed engineering and cost analysis related with system changes. The comparison between actual system energy consumption and CWSAT results are also shown.

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