scholarly journals Optimization of Central Air Conditioning Plant by Scheduling the Chiller Ignition for Chiller Electrical Energy Management

2021 ◽  
Vol 3 (2) ◽  
pp. 76-83
Author(s):  
Anggara Trisna Nugraha ◽  
Lailia Nur Safitri
Keyword(s):  
Power Management ◽  
Energy Efficient ◽  
Electrical Energy ◽  
Optimization Method ◽  
Shopping Centers ◽  
Shopping Malls ◽  
Cooling Systems ◽  
Central Air Conditioning ◽  
Save Energy ◽  
Efficient Consumption

Currently, the demand for electrical energy in homes, buildings, and industry is increasing, in line with population and economic growth. Of course, because of the massive use of electrical energy, it is necessary to increase efficiency. Large shopping malls in some countries are the biggest consume electricity, especially when it comes to cooling systems. Therefore, it is necessary to save energy in shopping centers. Because there are still few tenants and shopping centers that are relatively quiet, the mall's energy consumption is low, so it requires increasing energy-efficient consumption efficiency by optimizing power management and calculating the chiller performance coefficient (COP). This research aims to increase the chiller performance coefficient (COP) to save energy in shopping centers. The optimization method used is to make changes to the chiller ignition schedule when it's used in malls. Through the analysis from this research, it was found that the COP increased to 0.584, and the value before optimization was 6.181. With increasing COP, the chiller performance will increase. The effect of increasing the chiller's performance could optimize the electrical energy efficiency of the chiller in 138.82 kWh/day

scholarly journals Power Management System Based on Predefined Schedule Using Control App

2017 ◽  
Author(s):  
Amel Mazhar Yousif Ali Mohammed ◽  
Vrajesh Dinesh Maheta
Keyword(s):  
Power Management ◽  
Low Voltage ◽  
Electrical Energy ◽  
Android Application ◽  
Sultanate Of Oman ◽  
Project Approach ◽  
Energy Devices ◽  
Time Table ◽  
Power Management System ◽  
Save Energy

In large organizations devices operating on electrical energy are manually switched and remain ON throughout the day. Most venues are seldom used or used according to predefined schedule. When the energy devices remain ON, even when the venue is not being used, a lot of energy is wasted. The proposed approach suggests development of automatic ON or OFF switching devices  to avoid wasting energy for each venue depending on the time table. The proposed project intends to conserve energy consumption by optimizing scheduling of load to optimize utilization. Considering the importance given to energy conservation by the Sultanate of Oman, to save energy, a study on the present prevailing system has been carried out. The results of this study provide an insight to the energy consumed in a sample venue. The project approach has significant improvement to save energy. In order to overcome the energy  wasted over manually switching, this project is designed to load devices according to using time by android application. The android application has been designed to gather all essential timetable details of each room. Which connected directly with microcontroller through Wi-Fi communication. According to received data , the signal which received by microcontroller may include ether high voltage or low voltage. The microcontroller detects the voltage and based on the data which received from android application, its activates the relay driver to switch particular relay.

scholarly journals Architecture Design in Energy Usage Efficiency Effort

2020 ◽  
Vol 2 (2) ◽  
pp. 46-52
Author(s):  
Frysa Wiriantari ◽  
Arya Bagus Mahadwijati Wijaatmaja
Keyword(s):  
Energy Efficient ◽  
Alternative Energy ◽  
Energy Use ◽  
User Behavior ◽  
Electrical Energy ◽  
Climate Conditions ◽  
Available Energy ◽  
Energy Efficient Buildings ◽  
Utility Systems ◽  
Save Energy

The current world condition where the availability of energy especially non-renewable energy is running low, we are required to be able to use available energy efficiently and as economically as possible. Amid the not yet socialized use of alternative energy, these demands are mandatory. One key to saving energy is the use of electrical energy to meet the needs of lighting and air conditioning. Some ways that can be done to save energy are through the management of utility systems, user behavior and consistency of knowledge related to energy-efficient buildings. Some of the principles used in energy-efficient development are minimizing fuel, adjusting to the surrounding climate conditions, using appropriate materials, while still providing comfort to the user. The method used in this research is a qualitative descriptive method focusing on efforts to minimize energy use in buildings.

scholarly journals Grasp Point Optimization and Leakage-Compliant Dimensioning of Energy-Efficient Vacuum-Based Gripping Systems

Machines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 149
Author(s):  
Felix Gabriel ◽  
Susanna Baars ◽  
Martin Römer ◽  
Klaus Dröder
Keyword(s):  
Surface Roughness ◽  
Energy Efficient ◽  
Electrical Energy ◽  
Optimization Method ◽  
Compressed Air ◽  
Object Surface ◽  
Great Flexibility ◽  
Target Pressure ◽  
Suction Flow ◽  
Application Specific

Vacuum-based handling, used in many applications and industries, offers great flexibility and fast handling processes. However, due to significant energy conversion losses from electrical energy to the useable suction flow, vacuum-based handling is highly energy-inefficient. In preliminary work, we showed that our grasp optimization method offers the potential to save at least 50% of energy by a targeted placement of individual suction cups on the part to be handled. By considering the leakage between gripper and object, this paper aims to extend the grasp optimization method by predicting the effective compressed air consumption depending on object surface roughness, gripper diameter and gripper count. Through balancing of the target pressure difference and the leakage tolerance in combination with the gripper count and gripper diameter, significant reductions of the compressed air, use and therefore the overall energy consumption, can be achieved. With knowledge about the gripper-specific leakage behavior, in the future it will be straightforward for system integrators to minimize the need for oversizing due to process-related uncertainties and therefore to provide application-specific and energy-optimized handling solutions to their customers.

Energy Efficient Consumption in WSN by Considering SHM Application

2017 ◽  
Vol 7 (6) ◽  
pp. 462-467
Author(s):  
Pawan Kumar ◽  
◽  
Kota Solomon Raju ◽  
Sudhir Kr Sharma ◽  
Naresh Babu ◽  
...  
Keyword(s):  
Energy Efficient ◽  
Efficient Consumption

scholarly journals Practical Maximum-Power Extraction in Single Microbial Fuel Cell by Effective Delivery through Power Management System

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2312
Author(s):  
Jeongjin Yeo ◽  
Taeyoung Kim ◽  
Jae Jang ◽  
Yoonseok Yang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Management ◽  
Operation Time ◽  
Electrical Energy ◽  
Maximum Power ◽  
Extraction Technology ◽  
Power Extraction ◽  
Point Tracking ◽  
Power Point

Power management systems (PMSs) are essential for the practical use of microbial fuel cell (MFC) technology, as they replace the unstable stacking of MFCs with step-up voltage conversion. Maximum-power extraction technology could improve the power output of MFCs; however, owing to the power consumption of the PMS operation, the maximum-power extraction point cannot deliver maximum power to the application load. This study proposes a practical power extraction for single MFCs, which reserves more electrical energy for an application load than conventional maximum power-point tracking (MPPT). When experimentally validated on a real MFC, the proposed method delivered higher output power during a longer PMS operation time than MPPT. The maximum power delivery enables more effective power conditioning of various micro-energy harvesting systems.

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