Based on Energy Recovery of Hydraulic System’s Calculation of Energy Consumption

2012 ◽  
Vol 468-471 ◽  
pp. 654-657
Author(s):  
Yong Tian ◽  
Hong Wei Gao ◽  
Bo Liu ◽  
Wei Qi Li
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Hydraulic System ◽  
Energy Recovery ◽  
Total Power ◽  
Saving Effect

Introduced the energy recovery hydraulic elevator system's principle of work, calculated the uplink and the downlink of the hydraulic elevator system's useful work, total power and efficiency, results show that energy-saving effect of the hydraulic system was more obvious.

Studies of Large Hydraulic Excavator Boom Energy Recovery Technology

2014 ◽  
Vol 602-605 ◽  
pp. 424-427
Author(s):  
Zhi Ming Meng ◽  
Yuan Cheng He ◽  
Ting Zheng
Keyword(s):  
Energy Saving ◽  
Hydraulic System ◽  
Energy Recovery ◽  
Development Trend ◽  
Recovery System ◽  
New Energy ◽  
Energy Saving Technology ◽  
Saving Effect ◽  
Hydraulic System Design ◽  
The Development Trend

In this paper, Sichuan Bonny provided excavator experimental as a platform ,to testing the efficiency of various energy-saving hydraulic circuit. Based on the original hydraulic system design and adding new energy recovery system, observing the energy saving effect. Summarizes the large excavator hydraulic system common energy problems, deal with the problems from different aspects of hydraulic energy-saving technology describes the present state of hydraulic energy-saving technologies , and described the development trend of hydraulic energy.So that allows people to comprehensive understanding of this technology, to promote this technology popularization and application.

scholarly journals Energy Recovery Potential in Industrial and Municipal Wastewater Networks Using Micro-Hydropower in Spain

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 691
Author(s):  
Aida Mérida García ◽  
Juan Antonio Rodríguez Díaz ◽  
Jorge García Morillo ◽  
Aonghus McNabola
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Energy Recovery ◽  
Energy Production ◽  
Municipal Wastewater ◽  
Distribution Networks ◽  
Total Power ◽  
Energy Potential ◽  
Total Energy Consumption ◽  
Recovery Potential

The use of micro-hydropower (MHP) for energy recovery in water distribution networks is becoming increasingly widespread. The incorporation of this technology, which offers low-cost solutions, allows for the reduction of greenhouse gas emissions linked to energy consumption. In this work, the MHP energy recovery potential in Spain from all available wastewater discharges, both municipal and private industrial, was assessed, based on discharge licenses. From a total of 16,778 licenses, less than 1% of the sites presented an MHP potential higher than 2 kW, with a total power potential between 3.31 and 3.54 MW. This total was distributed between industry, fish farms and municipal wastewater treatment plants following the proportion 51–54%, 14–13% and 35–33%, respectively. The total energy production estimated reached 29 GWh∙year−1, from which 80% corresponded to sites with power potential over 15 kW. Energy-related industries, not included in previous investigations, amounted to 45% of the total energy potential for Spain, a finding which could greatly influence MHP potential estimates across the world. The estimated energy production represented a potential CO2 emission savings of around 11 thousand tonnes, with a corresponding reduction between M€ 2.11 and M€ 4.24 in the total energy consumption in the country.

Energy Consumption Analysis on Office Building Ventilation

2012 ◽  
Vol 516-517 ◽  
pp. 1139-1143
Author(s):  
Ke Chun Sun ◽  
Wei Jun Zhang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Air Conditioning ◽  
Room Temperature ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Energy Simulation ◽  
Office Building ◽  
Saving Effect ◽  
Night Ventilation

Chongqing weather conditions as the representative, energy simulation software DesT-c Chongqing office building energy simulation analysis, simulated natural building under different ventilation conditions at room temperature, the energy consumption of building cooling load and air-conditioning system changes, with an emphasis on energy-saving effect of the night ventilation; The study showed that in Chongqing reasonable use of ventilation reduce building natural room temperature to a certain extent; Sensitive indicators of building air conditioning energy consumption than the heating energy consumption of ventilation was significantly; Night ventilation when the number of ventilators is less than 5 times / h, the energy saving effect is very significant.

scholarly journals DQN-based energy-efficient routing algorithm in software-defined data centers

2020 ◽  
Vol 16 (6) ◽  
pp. 155014772093577
Author(s):  
Zan Yao ◽  
Ying Wang ◽  
Xuesong Qiu
Keyword(s):  
Energy Consumption ◽  
Load Balancing ◽  
Energy Saving ◽  
Heuristic Algorithm ◽  
Data Center ◽  
Energy Efficient ◽  
Data Centers ◽  
Routing Algorithm ◽  
Energy Efficient Routing ◽  
Saving Effect

With the rapid development of data centers in smart cities, how to reduce energy consumption and how to raise economic benefits and network performance are becoming an important research subject. In particular, data center networks do not always run at full load, which leads to significant energy consumption. In this article, we focus on the energy-efficient routing problem in software-defined network–based data center networks. For the scenario of in-band control mode of software-defined data centers, we formulate the dual optimal objective of energy-saving and the load balancing between controllers. In order to cope with a large solution space, we design the deep Q-network-based energy-efficient routing algorithm to find the energy-efficient data paths for traffic flow and control paths for switches. The simulation result reveals that the deep Q-network-based energy-efficient routing algorithm only trains part of the states and gets a good energy-saving effect and load balancing in control plane. Compared with the solver and the CERA heuristic algorithm, energy-saving effect of the deep Q-network-based energy-efficient routing algorithm is almost the same as the heuristic algorithm; however, its calculation time is reduced a lot, especially in a large number of flow scenarios; and it is more flexible to design and resolve the multi-objective optimization problem.

On-Site Inspection and Analysis on Earth Architecture’s Enclosure Construction

2013 ◽  
Vol 357-360 ◽  
pp. 492-498
Author(s):  
Hong Yu ◽  
Hai Jun Sun
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Environmental Protection ◽  
Influential Factors ◽  
Earth Construction ◽  
The Earth ◽  
New Countryside ◽  
Actual Energy Consumption ◽  
Saving Effect ◽  
Good Heat

In order to assess the human settlements situation of earth construction and analyse Environmental protection and energy saving effect of the earth construction's enclosure-construction, we choose Jinan's earth construction--adobe houses--to conduct the detection and analysis of energy saving and were based on the factual date to calculate enclosure-construction's heat transfer coefficient K and the actual energy consumption to analyses the influential factors of the energy consumption and determine the main part of the energy saving effect of energy consumption based on the Extensive research of the ecological environment and earth construction in Shandong province. The results show that the typical enclosure-structure with good heat saving capacity can maintain the indoor thermal stability. Through the calculation of heat retaining structure, we can know that the tested adobe house's energy consumption is larger than normal house. it suggested that the earth construction has the characteristics of better energy saving and environmental protection. seeing that the factual tested adobe house's lower intensity , bad decoration and imperfection ,we put forward the suitable earth buildings scheme of the construction of new countryside.

Energy Consumption and Economic Analysis to Residential Building Meeting the Criterion of 65% Energy Saving in Zhangjiakou

2011 ◽  
Vol 225-226 ◽  
pp. 239-242 ◽  
Author(s):  
Hong Lei Ma ◽  
Jian Hui Niu
Keyword(s):  
Energy Consumption ◽  
Economic Analysis ◽  
Energy Saving ◽  
Residential Building ◽  
Building Energy ◽  
Simulation Software ◽  
Design Standard ◽  
Third Stage ◽  
Building Energy Saving ◽  
Saving Effect

An energy saving residential building in Zhangjiakou was took as research object, which was designed and constructed according to the criterion of 65% energy saving of the third stage, utilizing simulation software Dest, which was developed by Qinghua University, energy consumption simulation and economic analysis were done to the building. The results show that compared with the former residence which was built according to the non-energy saving design, the implementation of new design standard for building energy saving can not only achieve better energy saving effect, but also its payback period is short, so the new design standard for building energy saving is worth spreading.

To Analyze The Influence Factors on Energy Saving of Hybrid Bus

2012 ◽  
Vol 605-607 ◽  
pp. 19-23
Author(s):  
Ya Lee Jiao ◽  
Yao Ping Li ◽  
Wen Sheng Yan
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Recovery ◽  
Influence Factors ◽  
Energy Condition ◽  
Hybrid Operation ◽  
Hybrid Bus

In order to discuss the different factors, influence on hybrid bus energy saving, we analyzed the collected data information which got when the hybrid bus driving. Discussing the situation that energy consumption and energy recovery when the hybrid operation. At last get the best operational condition when the hybrid bus can play a energy-saving role by analyze the factors such as recovery energy condition, different elevations and different starting ways

scholarly journals Thermodynamic Features and Design of Solar-Air Source Composite Heating System

2020 ◽  
Vol 38 (4) ◽  
pp. 967-975
Author(s):  
Na Ni
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Supply ◽  
Water Source ◽  
Heating System ◽  
Heating And Cooling ◽  
Cooling Devices ◽  
Good Energy ◽  
Saving Effect ◽  
Independent Heat

Facing the huge energy consumption of buildings, it is highly practical to study every aspect of energy-saving technologies for heating and cooling devices. Solar thermal technology and air/water source heat pump are two popular energy-saving technologies, which could be combined into a composite heating system with good energy-saving effect and efficiency. This paper constructs a solar-air source composite heating system, analyzes its thermodynamic features, and builds up the corresponding thermodynamic model. In addition, the authors modeled the daytime and nighttime heat balances, as well as the monthly cumulative heat supply for the constructed system. Finally, a dual-tank composite heating system was designed with independent heat supply/storage. The proposed models and system were proved valid and scientific through experiments.

scholarly journals Development and Evaluation of Energy-Saving Electro-Hydraulic Actuator

Actuators ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 302
Author(s):  
Triet Hung Ho ◽  
Thanh Danh Le
Keyword(s):  
Mathematical Model ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Recovery ◽  
Hydraulic Systems ◽  
Hydraulic Actuator ◽  
High Effectiveness ◽  
Simulation Results ◽  
The Mathematical Model ◽  
Insight Into

This paper will develop a novel electro-hydraulic actuator with energy saving characteristics. This system is able to work in differential configurations through the shifting algorithm of the valves, meaning that this developed system can be adjusted flexibly to obtain the desirable working requirements including the high effectiveness of energy recovery from the load, high velocity or torque. Instead of establishing the mathematical model for the purpose of the dynamic analysis, a model of the developed actuator is built in AMESim software. The simulation results reveal that the system is able to save approximately 20% energy consumption compared with a traditional without energy recovery EHA. Furthermore, to evaluate the accuracy of the model, experiments will be performed that prove strongly that the experimental results are well matched to the results attained from the simulation model. This work also offers a useful insight into designing and analyzing hydraulic systems without experiments.

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