scholarly journals Smart prepaid energy metering system to detect energy theft with facility for real time monitoring

Author(s):  
Somefun T. E ◽  
Awosope C.O.A ◽  
Chiagoro A.

Electricity theft remains a huge loss incurred by electricity distribution companies. This theft arises majorly because of activities carried out by consumers such as energy-meter by-passing, energy-meter tampering etc. This research study offers an approach for handling energy meter by-passing and tampering. The system design is based on the monitoring of the readings of two current sensors by a programmed microcontroller. While one of the current sensors monitors the current drawn by the user’s load, the latter installed before the meter monitors current drawn by all loads. Any discrepancy between the values read, indicates theft. A momentary switch is also installed in the meter to trigger the meter once it is tampered with. Furthermore, the user is provided with a remote access to the energy meter for recharging energy units and for monitoring energy consumption. It was observed that the system accurately measured load consumption and detect any attempt to by-pass or tamper with the energy meter. Lastly, all unscrupulous attempts were reported using GSM technology.

Author(s):  
Tsapalasetty Arjun

In this paper we are focusing on automatic billing and metering, The GSM Short Message Service (SMS) and Arduino connection gives the metre reading system several predefined automatic capabilities.The energy consumption and electricity bill and loads will be providing through GSM module to the customer and to the concern electricity department. An alert message will be send to the customer and vigilance squad when the consumption unit reading reaches beyond the specific threshold. And loads on and off through gsm This paper contains energy consumption details in terms of power units and power units will be displayed on the LCD and will be notified to the customer via SMS and customer will also be able to recharge with the help of GSM module as well as microcontroller.


2019 ◽  
pp. 154-170
Author(s):  
Fauzia Mubarik ◽  
Javeria Shabbir

This qualitative research study aims to investigate the role played by the established special economic zones under the program of the China-Pakistan Economic Corridor to improve and upgrade the energy sector in Pakistan. The key role of China under the Joined Cooperation Committee formed in 2013 has paved ways for Pakistan to bring profound stability in the energy crisis being faced by Pakistan which is also evident from its most recent investment of 33.45 billion Rupees under the CPEC mega energy project respectively. The availability of approximately 10,000 megawatts electricity to the National Grid of Pakistan in the year 2018 is near to its accomplishment phase. However, this accomplishment poses itself many challenges that may halter the smooth reviving of the energy and power crisis. The challenge of bridging the gap between the purchase prices of the electricity distribution companies (DISCOS) and the sales revenue generated as well as the inclusion of more hydropower projects because of them being less expensive than the wind power projects respectively.


2021 ◽  
Vol 71 (1) ◽  
pp. 124-133
Author(s):  
B. K. Tiwari ◽  
R. Sharma

This paper presents the design and analysis of the ‘Variable Buoyancy System (VBS)’ for depth control which is an essential operation for all underwater vehicles. We use the ‘Water Hydraulic Variable Buoyancy System (WHVBS)’ method to control the buoyancy and discuss details of the system design architecture of various components of VBS. The buoyancy capacity of the developed VBS is five kilograms and the performance of the VBS in standalone mode is analysed using numerical simulation. Presented VBS is operable to control the buoyancy up to sixty meters of depth and it can be directly installed to medium size UVs. Simulation results show that the developed VBS can reduce the energy consumption significantly and higher in each cycle (i.e. descending and ascending) of the same VBS in standalone mode being operated with either propeller or thruster for sixty meters depth of operation. Our results conclude and demonstrate that the designed VBS is effective in changing the buoyancy and controlling the heave velocity efficiently and this serves the purpose of higher endurance and better performances desired in rescue/attack operations related to the UVs both in civilian and defense domains.


2019 ◽  
Vol 18 (3-2) ◽  
pp. 32-36
Author(s):  
Sh. Nurul Hidayah Wan Julihi ◽  
Ili Najaa Aimi Mohd Nordin ◽  
Muhammad Rusydi Muhammad Razif ◽  
Amar Faiz Zainal Abidin

Manual home energy meter reading and billing had caused inconvenience to the utility companies due to lack of manpower to read the energy meter at each household especially in the remote area, explains the increasing number of smart meter reader in the current market. Most of the smart meters in the market do not offer safety of privacy of consumers’ personal information since the data of electricity usage is being transferred digitally to the utility companies for more accurate bills calculation. Plus, the smart meter system is also a bit pricey to be installed in the rural area. Therefore, a private system that able to read energy consumption from a DC load and calculate its bill according to the tariff is proposed. Value of current is being obtained by using ACS712 current sensor. Hall circuit in the current sensor will converts magnetic field into a proportional voltage. The proposed system allows energy meter monitoring from an Android-based smartphone by displaying the real-time energy consumption and bill on Blynk application. An interface of Blynk is developed and connected to WiFi module, ESP8266 for visualizing the energy consumption of the DC load. In conclusion, the Energy Meter transmitter part able to read, calculate and transmit value of energy consumption and current bills to the Blynk application and Blynk application able to receive and show all the data transmitted at the present time. This system will be further improved for long-distance monitoring of electrical appliances used at home.


2013 ◽  
Vol 448-453 ◽  
pp. 1269-1272
Author(s):  
Zhao Chen ◽  
Li Bai ◽  
Feng Li

In this paper, the software of DeST was used to simulate the heating energy consumption by the year of a typical energy-saving residential building in the city of Changchun. Comparing the energy consumption of the top and bottom,the middle room and the edges rooms ,we get the reasons for the uneven heating and put forward the corresponding solutions, which provide the reference for heating system design.


Author(s):  
Gang Wang ◽  
Mingsheng Liu ◽  
David Claridge

Heating and cooling energy consumption measurements are critical for operations, controls, and fault detection and diagnosis of heating, ventilation and air conditioning (HVAC) systems. Generally water flow has to be measured in order to determine energy consumption in either chilled water systems or hot water systems. Economical and accurate water flow measurements are essential to develop energy meters. Since pump performance relates actual pump water flow to pump head and power, theoretically water flow through a pump can be determined by other pump performance characteristics, such as pump head and motor power. This paper presents the theoretical model of pump flow stations based on pump head and motor power, and the experiments and results of a cooling energy meter using a pump flow station developed on the chilled water system at a facility.


Author(s):  
P. E. Phelan ◽  
Y. Gupta ◽  
H. Tyagi ◽  
R. Prasher ◽  
J. Cattano ◽  
...  

Increasingly, military and civilian applications of electronics require extremely high heat fluxes, on the order of 1000 W/cm2. Thermal management solutions for these severe operating conditions are subject to a number of constraints, including energy consumption, controllability, and the volume or size of the package. Calculations indicate that the only possible approach to meeting this heat flux condition, while maintaining the chip temperature below 50 °C, is to utilize refrigeration. Here we report an initial optimization of the refrigeration system design. Because the outlet quality of the fluid leaving the evaporator must be held to approximately less than 20%, in order to avoid reaching critical heat flux, the refrigeration system design is dramatically different from typical configurations for household applications. In short, a simple vapor-compression cycle will require excessive energy consumption, largely because of the superheat required to return the refrigerant to its vapor state before the compressor inlet. A better design is determined to be a “two-loop” cycle, in which the vapor-compression loop is coupled thermally to a primary loop that directly cools the high-heat-flux chip.


Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 604
Author(s):  
Eirini Bougoulia ◽  
Dimitris Foufeas ◽  
Nicholas Petroulias

New bidirectional technologies for remote access and control of DMAs are introduced into the Advanced Pressure Management field. Using interconnected devices, a controller at the PRV and a logger at the DMA’s Critical Point, it is attempted to reach the optimal performance of the network in terms of pressure, energy consumption, economic parameters, losses and broken pipe events frequency. All manual adjustments are implemented remotely through an integral 2-way web communication system, allowing accessibility from any place, at any time. A case study of a 2-year trial period in Athens, Greece is presented.


Author(s):  
Jonathan P Powell ◽  
Paul Batty ◽  
Arturo González-Gil ◽  
Roberto Palacín

Energy is becoming an increasingly important topic in all transport systems. However, when evaluating alternative methods for the optimisation of energy use, it is vital to obtain a thorough understanding of the energy flows within the system. While new systems generally have comprehensive automatic energy metering and monitoring of their components, there is much legacy infrastructure without this capability. This article develops a methodology to determine a breakdown of energy use for the Tyne and Wear Metro, the results of which are compared with other railway systems. This is complemented by an investigation into the energy consumption of stabled rolling stock.


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