Energy Saving Matching of Power Equipment for Four-Footed Robot Dog

2014 ◽  
Vol 986-987 ◽  
pp. 1222-1225
Author(s):  
Jun Wang ◽  
Chuan Hu ◽  
You Tong Zhang
Keyword(s):  
Energy Saving ◽  
Gasoline Engine ◽  
Dynamic Performance ◽  
Bench Test ◽  
Power Equipment ◽  
Pressure Feedback ◽  
Save Energy ◽  
Pump Pressure ◽  
Experimental Bench ◽  
Fast Dynamic

To increase the flexibility performance of robot dog, dynamic performance matching of power equipment in four-footed robot dog is made. Demand for power and configure in robot dog power equipment is briefly analyzed, improved backward power match between gasoline and pump is presented, power and flow rate match between gasoline and pump is calculated, control strategy based on pump pressure feedback is applied into gasoline engine control in order to save energy. With experimental bench test, experimental results showed that energy saving matching of power equipment can meet the requirement of fast dynamic meditation for robot dog .

scholarly journals A modified energy-saving skyhook for active suspension based on a hybrid electromagnetic actuator

2018 ◽  
Vol 25 (2) ◽  
pp. 286-297 ◽  
Author(s):  
Renkai Ding ◽  
Ruochen Wang ◽  
Xiangpeng Meng ◽  
Long Chen
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Active Control ◽  
Dynamic Performance ◽  
Active Suspension ◽  
Linear Motor ◽  
Bench Test ◽  
Electromagnetic Actuator ◽  
Energy Regeneration ◽  
Hydraulic Damper

This study proposes a modified energy-saving skyhook consisting of active control, energy regeneration, and switch. The modified skyhook coordinates the contradiction between dynamic performance and energy consumption of electromagnetic active suspension. The control principle is analyzed, the switch condition between active control and energy recovery is provided, and the switch control system is designed for simulation. Results demonstrate that the presented strategy can coordinate the dynamic performance and energy consumption effectively. The realization structure, namely, a hybrid electromagnetic actuator, is then designed to satisfy the control requirements. It integrates a linear motor and a hydraulic damper. The linear motor is used for active control or energy regeneration, while the hydraulic damper is used to guarantee basic dynamic performance. The structural dimension of hybrid electromagnetic actuator is optimized to increase air gap flux density with the volume and weight limitation. A prototype is fabricated, and a bench test is conducted. Results show that the structure can satisfy the control requirements. Some errors within a reasonable range are also observed between the test and the simulation because the simulation model is prepared under ideal conditions.

scholarly journals Energy-Saving Analysis of Hydraulic Hybrid Excavator Based on Common Pressure Rail

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Wei Shen ◽  
Jihai Jiang ◽  
Xiaoyu Su ◽  
Hamid Reza Karimi
Keyword(s):  
Dynamic Response ◽  
Energy Saving ◽  
Fuel Consumption ◽  
Environment Friendly ◽  
Hydraulic Hybrid ◽  
Manufacture Process ◽  
Hybrid Excavator ◽  
Save Energy ◽  
Common Pressure Rail ◽  
Fast Dynamic

Energy-saving research of excavators is becoming one hot topic due to the increasing energy crisis and environmental deterioration recently. Hydraulic hybrid excavator based on common pressure rail (HHEC) provides an alternative with electric hybrid excavator because it has high power density and environment friendly and easy to modify based on the existing manufacture process. This paper is focused on the fuel consumption of HHEC and the actuator dynamic response to assure that the new system can save energy without sacrificing performance. Firstly, we introduce the basic principle of HHEC; then, the sizing process is presented; furthermore, the modeling period which combined mathematical analysis and experiment identification is listed. Finally, simulation results show that HHEC has a fast dynamic response which can be accepted in engineering and the fuel consumption can be reduced 21% to compare the original LS excavator and even 32% after adopting another smaller engine.

Comfort and Energy-Saving Intelligent Shutter

2011 ◽  
Vol 267 ◽  
pp. 565-568
Author(s):  
Su Chen ◽  
Dong Xing Wang
Keyword(s):  
Energy Saving ◽  
Temperature Sensors ◽  
Sleep Mode ◽  
Indoor Temperature ◽  
Current Season ◽  
Solar Battery ◽  
Remote Controller ◽  
Save Energy

Most currently used shutters are manually operated. The design of an intelligent shutter has been proposed. The intelligent shutter can be powered by a solar battery. Photosensitive resistors have been used to determine if it is in daytime or nighttime, if it is sunny or not, and if the light is turned on or turned off. Digital temperature sensors have been used to detect the indoor temperature and the outside temperature. They are also used to determine the current season. The intelligent shutter is automatically controlled according to the above information. It is turned off at night and is set in sleep mode to save energy. It is turned on partially on sunny day in summer. In rainy day, the shutter is turned off while the indoor light is on. The intelligent shutter can also be controlled using a wireless remote controller, which makes it very friendly. It is comfort and energy-saving using the intelligent shutter. Experiments have demonstrated the applicability of the design.

RESOURCE SAVING WHEN IMPLEMENTING MEASURES TO OPTIMIZE LIGHTING IN POULTRY FACTORIES

2021 ◽  
Author(s):  
Ирина Владимировна Агафонова
Keyword(s):  
Energy Saving ◽  
Energy Resources ◽  
Resource Saving ◽  
Poultry Farms ◽  
Lighting Systems ◽  
Save Energy

Статья посвящена значению энергосбережения в системах освещения на птицефабриках. В статье предлагается при оснащении птицеводческих хозяйств осветительными приборами использовать преимущественно энергосберегающие лампы. Также внимание следует уделить режимам освещения, спектру света, оптимизация которых также поможет сэкономить энергетические ресурсы. The article is devoted to the importance of energy saving in lighting systems in poultry farms. The article proposes to use mainly energy-saving lamps when equipping poultry farms with lighting devices. Also, attention should be paid to lighting modes, the spectrum of light, the optimization of which will also help save energy resources.

scholarly journals Effectiveness of Cooperative Learning (Theme: Limited Natural Resources) to Increase Intention to Save Energy in Students

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Sugeng Hariyadi ◽  
Nuke Martiarini ◽  
Anna Undarwati
Keyword(s):  
Cooperative Learning ◽  
Natural Resources ◽  
Energy Saving ◽  
Group Process ◽  
Control Group ◽  
Behavior Intention ◽  
High Category ◽  
Saving Behavior ◽  
Save Energy ◽  
Experimental Group

Some of the natural disaster occurred caused by people using natural resources unwisely. Before analyzing about that behavior, first will be analyzed is behavioral intention. The purpose of this study was to determine the effectiveness of cooperative learning group investigation type with the theme of “limited natural resources” to improve intention to save energy. The study used an experimental design Post-test-Only Design With Equivalent Groups, involving 66 people, divided into two groups, each 33 in the experimental group and 33 control group. Process experiments were conducted in a way, dividing the experimental group in 5 small groups, having given the matter of limited natural resources, then each group discussion, and sharing ideas with other groups in the jigsaw. The results showed that there are differences in energy-saving behavior intention significantly between the experimental group (KE) and the control group (KK) with t value of 3.192 with 0.002 significance (p <0.05). Differences KE and KK with a positive t value indicates that the energy-saving behavior intention at KE has a higher value than the families who were not given the manipulation. In general score KE and KK if joined at the high category, but if sorted, KE scores at the high category and score KK in middle category.

scholarly journals Heat recovery by means of a ventilation unit

2021 ◽  
Vol 263 ◽  
pp. 04025
Author(s):  
Dmitrii Khlopitsyn ◽  
Andrey Rymarov
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Recovery ◽  
New Technologies ◽  
Ventilation System ◽  
New Developments ◽  
Before And After ◽  
Save Energy ◽  
Recuperative Heat Exchanger ◽  
Air Removal

Energy consumption all over the world is constantly growing. To save energy, new technologies are being developed for the efficient use of energy resources. The goal of all new developments is to use less energy to provide the same level of energy supply for technological processes or buildings. The problem of energy saving is relevant for the ventilation system. Together with the removed air, a large amount of heat is lost, which is not advisable. In order to avoid these losses, heat recuperators began to be used, heating the cold supply air due to the warm air removed from the room. This development belongs to the field of energy saving. The goal is to increase efficiency by reheating the air after the heater with the help of a recuperator for a given temperature difference in the supply air before and after the recuperative heat exchanger. The development is a design of a ventilation unit with air removal and supply air ducts, combined into one housing with a separate, according to the “screw” principle, heat transfer wall, for use in the ventilation system in order to ensure an optimal microclimate in the room. Thus, as a result of using the presented device, the efficiency of the room ventilation unit is increased by reducing the energy consumption for heating the supply air with a heater.

Understanding intentions to reduce energy consumption at the workplace by the employees: case of a developing country

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amna Akhound ◽  
Aseem Majeed Rizvi ◽  
Waqar Ahmed ◽  
Muhammad Nadeem Khan
Keyword(s):  
Energy Saving ◽  
Structural Equation ◽  
Energy Use ◽  
Energy Savings ◽  
Theoretical Research ◽  
Equation Modeling ◽  
Survey Method ◽  
Content Type ◽  
Saving Behavior ◽  
Save Energy

PurposeEnergy-saving behavior of individuals is essential to minimize energy use and reduce the emission of toxic gases. This study's actual focus is to find out the determinants of the energy-saving behavior of individuals in the workplace.Design/methodology/approachAs a theoretical research model, the extended theory of planned behavior (TPB) has been used to analyze the determinants of energy-saving intentions. A survey method is used to collect 289 valid data, and structural equation modeling (SEM) is used to analyze the data.FindingsThe final result shows that the variables attitude at home, subjective norm (SN) and descriptive norms positively impact intention to save energy at the workplace. In contrast, the construct attitude and perceived behavior control is insignificant in this research. On the other hand, the personal moral norm (PMN) is a powerful predictor of individual energy-saving intentions at the workplace.Originality/valueThis research provides insights that will help the organizations understand the behavior of individuals at the workplace for energy-saving intentions to formulate such policies that will enhance individuals' practice for energy savings.

Power Consumption Aware Cluster Resource Management

2013 ◽  
pp. 20-37
Author(s):  
Simon Kiertscher ◽  
Bettina Schnor ◽  
Jörg Zinke
Keyword(s):  
Resource Management ◽  
Energy Saving ◽  
Modular Design ◽  
Scheduling Algorithm ◽  
Management Systems ◽  
Current Load ◽  
Speed Scaling ◽  
Management Level ◽  
Performance Per Watt ◽  
Save Energy

In 2007, the Green500 list was introduced, which compares supercomputers by performance-per-watt. Since supercomputers consist of thousands of nodes, energy-saving is a growing demand. Compute clusters are often managed by a so-called Resource Management Systems (RMS), which have load information about the whole system. For clusters with changing compute demands, this can be used to switch on/off nodes according to the current load situation and save energy this way. Here, the authors present energy-saving techniques that work on the management level and measurements that show that speed scaling is not a good means for energy saving. Further, they give an overview of some important standards and specifications related to energy saving, like ACPI and IPMI. Finally, the authors present their energy-saving daemon called CHERUB. Due to its modular design, it can operate with different Resource Management Systems. Their experimental results show that CHERUB’s scheduling algorithm works well, i.e. it will save energy, if possible, and avoids state flapping.

Design of a Temperature-Constrained Governor to Save Energy in an Open Multi-Frequency Green Router

2013 ◽  
Vol 9 (3) ◽  
pp. 16-34
Author(s):  
Alfio Lombardo ◽  
Diego Reforgiato ◽  
Vincenzo Riccobene ◽  
Giovanni Schembra
Keyword(s):  
Energy Saving ◽  
Engine Performance ◽  
Central Processor ◽  
Clock Frequency ◽  
Traffic Loading ◽  
Working Temperature ◽  
Positive Side ◽  
Central Processor Unit ◽  
Save Energy ◽  
Processor Unit

In the last years a new challenge turned out for both researchers and industries in telecommunications area is represented by green networks. Besides energy saving that is possible to achieve, another positive side effect of this is the reduction of the working temperature of internal components of telecommunications devices (switches, home gateway, routers, etc.). This idea is encouraging the development of routers of reduced dimensions as long as there is the knowledge that the temperature remains in a given range. For this reason the target of this paper is to propose a governor policy that provides the best trade-off between quality of service and energy saving in respect of a given target on the working temperature. More specifically, such a governor is in charge to manage the clock frequency of the Central Processor Unit (CPU) of the green router according to the traffic loading the router, varying the processing engine performance, the working temperature and the power consumption of the hardware at the same time. The proposed policy is then applied to a case study and evaluated by simulation to show how it can be used for the above purposes, and to allow green router designers to control the temperature statistics of a router and design the governor parameters to maintain the mean temperature below a given threshold.

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