Compressor Anti-Surge Control System Optimization Energy Saving Renovation

2011 ◽  
Vol 317-319 ◽  
pp. 2177-2180
Author(s):  
Hui Cao ◽  
Chen Wang ◽  
Chang Ji Lin
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
System Optimization ◽  
Stable Operation ◽  
Surge Control

The original control system adopts MEH controller and maintains the operation of the unit by continually backflow. But surge problem still exists in the running, which constitutes a serious threat to the safety of the unit, meanwhile wastes a lot of energy. Later S5 Duplex control system of CCC Company is adopted in the reconstructed control system, which rebuilds the compression anti-surge control system, eliminates surge threat and huge energy consumption. Millions of profits can be created by this renovation each year. The targets of stable operation and energy conservation can be achieved as well.

scholarly journals Application and Evaluation of Energy Conservation Technologies in Wastewater Treatment Plants

2019 ◽  
Vol 9 (21) ◽  
pp. 4501 ◽  
Author(s):  
Yongteng Sun ◽  
Ming Lu ◽  
Yongjun Sun ◽  
Zuguo Chen ◽  
Hao Duan ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Wastewater Treatment Plants ◽  
System Optimization ◽  
High Energy ◽  
Green Energy ◽  
Application Process ◽  
Conservation Technologies

High energy consumption is an important issue affecting the operation and development of wastewater treatment plants (WWTPs). This paper seeks energy-saving opportunities from three aspects: energy application, process optimization, and performance evaluation. Moreover, effective energy-saving can be achieved from the perspective of energy supply and recovery by using green energy technologies, including wastewater and sludge energy recovery technologies. System optimization and control is used to reduce unnecessary energy consumption in operation. Reasonable indexes and methods can help researchers evaluate the application value of energy-saving technology. Some demonstration WWTPs even can achieve energy self-sufficiency by using these energy conservation technologies. Besides, this paper introduces the challenges faced by the wastewater treatment industry and some emerging energy-saving technologies. The work can give engineers some suggestions about reducing energy consumption from comprehensive perspectives.

scholarly journals Talking about the Energy-saving Technical Measures in the Electrical Design of Buildings

1970 ◽  
Vol 1 (1) ◽  
Author(s):  
Zhang Mian
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Research And Development ◽  
Energy Saving ◽  
New Technologies ◽  
New Products ◽  
New Energy ◽  
Technical Measures

At present, people pay more attention to the energy consumption of building electrical design, the use of energy-saving design can maximize the energy conservation resources, and ultimately increase the pace of social sustainable development. Therefore, the energy-saving designers involved in the need to follow the economic rational, safe and feasible benchmark to select the appropriate energy-saving measures to increase research and development of new technologies, new products and new energy, the concept of sustainable development to be implemented. In view of this, this paper mainly analyzes the energy saving technical measures in the electrical design of thebuilding.

scholarly journals The Viability of Energy Auditing in Countries with Low Energy Cost: A Case Study of a Residential Building in Cold Climates

Designs ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 42 ◽  
Author(s):  
Ebrahim Solgi ◽  
Zahra Hamedani ◽  
Shahab Sherafat ◽  
Ruwan Fernando ◽  
Farshid Aram
Keyword(s):  
Computer Simulation ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Residential Building ◽  
Cold Climate ◽  
Conservation Strategies ◽  
Linear Regression Method ◽  
Effective Measure ◽  
The Impact

The continuing importance of energy conservation in the building sector has drawn major attention to energy audits of existing buildings in different climates. In this paper, the energy conservation potential of a residential building located in Iran’s cold climate was investigated through an analysis of its actual energy consumption and through computer simulation. The building base-load was determined using a linear regression method based on existing energy bills, and was used to validate the computer simulation of its energy usage. The impact of typical energy saving solutions was evaluated for three cost refurbishment scenarios: low, medium and high. The results show that the existing construction and envelope materials fail to meet the national standards of Iran, but insulating the envelope was found to be a more cost-effective measure than modifying the windows. The results also demonstrate that although the use of energy-saving solutions has a significant impact on energy consumption, even the most economic solutions investigated will have a payback period longer than one decade. Thus, with current energy prices the reviewed energy conservation strategies are not economically justified in Iran from the consumer perspective, as investment in the methods considered typical in other parts of the world will not show a return for at least a half-century.

Data Center Room Air Conditioning Energy Consumption Analysis

2014 ◽  
Vol 672-674 ◽  
pp. 518-521
Author(s):  
Li Fei Song ◽  
Tao Li ◽  
Qi Fen Li ◽  
Lin Hui Zhao ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Data Center ◽  
Air Conditioning ◽  
Field Research ◽  
Northern China ◽  
Air Conditioning System ◽  
Energy Consumption Analysis ◽  
Energy Saving Technology

In this paper, the Unicom's medium-sized IDC room in a city of northern China is the research object for the study. Based on field research of the room refrigeration conditions, data center room air conditioning system is carried out to optimize and for energy conservation research. Through the analytic methods of energy saving-technology, the best energy saving solutions is explored.

Research of Paddle Wave-Maker Control System Based on Jonswap Spectrum

2014 ◽  
Vol 1006-1007 ◽  
pp. 679-684
Author(s):  
Xue Fei Huang ◽  
Mao Pang
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Energy Saving ◽  
Real Time ◽  
Personal Computer ◽  
Control Algorithm ◽  
Change Rate ◽  
The Real ◽  
Wave Maker ◽  
Jonswap Spectrum

According to large energy consumption, overload and re-reflection problemr, the control algorithm of wave-maker has been improved based on Jonswap spectrum. The control algorithm is comprised of the offline calculation of the control waveform and the real-time governing of the wave paddle. Offline algorithm is implemented on a personal computer, whereas paddle control is realized on a programmable automation controller. The experiments results show that the speed is continuous and stable, change rate of load has been optimized obviously and achieves the purpose of energy saving.

Design and Application of Hotel Intelligent Control System

2014 ◽  
Vol 705 ◽  
pp. 350-354
Author(s):  
Zhen Hai Zhang ◽  
Wang Fa Zhou
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Intelligent Control ◽  
Water Cycle ◽  
Environment Protection ◽  
Intelligent Control System ◽  
Market Competitiveness ◽  
New Energy ◽  
Central Air Conditioning

Aiming at the energy waste problem in the modern hotel, hotel intelligent control system applied the PAC, internet communication, touch screen and on-scene communication technology, combined with human-based management mode. Practices substantiate that the system is safe and reliable, presenting good man-machine interactivity, reducing the energy consumption and costs, improving the market competitiveness of the hotel.Modern hotel should the clean production, energy resources’ saving, which is also an important step of environment protection that has been repeatedly asserted. Hotel is a typical representative as for energy consumption. It is estimated that the power consumption in a medium-sized (300 rooms) star hotel open for business, runs up to 500 to 700 KWH annually [1]. Therefore, it is of great significance to promote energy conservation in hotel. "Intelligent hotel energy conservation and environmental protection control system" is built around the concept of energy-saving and consumption reducing. Meanwhile, it surrounds three themes: utilization of new energy, energy efficiency, environment protection. It cherishes an comprehensive modern facility, which include central air-conditioning, boilers, water cycle, lights, intelligent garage and all the installation deserved. Its study is a prospective and practical one.

Research and Discussion on Energy-Saving of Existing Buildings in Northwest of Liaoning Province

2012 ◽  
Vol 178-181 ◽  
pp. 221-224
Author(s):  
Ya Jun Wu ◽  
Yu Ma
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Working Environment ◽  
Liaoning Province ◽  
Existing Buildings ◽  
Cold Regions ◽  
The Status ◽  
Reduce Energy Consumption

Abstract. In view of the status of existing buildings in northwest of Liaoning, most of which are lack of energy-saving practices and appear poor comfort, this paper starts from the energy saving concept, aims at figuring out the energy saving measures for cold regions, such as northwest of Liaoning province. The research includes analyzing energy-saving methods, steps and initiatives. Based on these, this paper also proposes specific technical practices to overcome the shortcomings of the existing buildings on energy conservation, and gives advices on how to reduce energy consumption and improve the quality of people’s living and working environment.

Energy Saving Studies in Industrial Facilities

2008 ◽  
Author(s):  
Mehmet Kanoglu ◽  
Ilker Karabay ◽  
Ibrahim Dincer
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Energy Use ◽  
High Efficiency ◽  
Industrial Sector ◽  
Total Energy Consumption ◽  
Industrial Facilities ◽  
Conservation Measures ◽  
Energy Conservation Measures

Efficient energy use is critical for the success of any industrial facility since reduced energy consumption through energy conservation/saving programs can benefit not only consumers and utilities, but society in general as well. In particular, reduced energy consumption generally leads to reduced emissions of greenhouse gases and other air pollutants into the environment. It also helps reduce the operational costs in the facility. There is a strong need to take some energy saving measures in every plant/ facility. Although these may be quite diverse, some of these measures include thermal insulation, use of more efficient equipment, heat recovery systems, high efficiency lighting, changing the fuel, reducing the cost of compressed air, and enhancing productivity. In this study, some certain energy conservation measures are considered for assessing a packaging film manufacturing facility in Gaziantep, Turkey. Taking advantage of dry and hot climates of the city, cooling compressor inlet air by evaporative cooling technique is also assessed. Our investigation shows that there is a huge room for energy conservation measures. The total savings potential are expected to be 869,350 YTL (about $725,000) representing about 16% of the total energy consumption. The payback periods for the identified measures are justified. We believe that the results are typical rather than exceptional for the industrial sector in Turkey.

Energy-saving parameterized design of buildings based on genetic algorithm

2020 ◽  
Vol 38 (5) ◽  
pp. 785-795 ◽  
Author(s):  
Kele Zhang
Keyword(s):  
Genetic Algorithm ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Natural Ventilation ◽  
Model Building ◽  
Building Energy ◽  
Building Energy Consumption ◽  
Content Type ◽  
Building Parameters

PurposeWith the problem of environment and energy becoming prominent, energy conservation and emission reduction have received more attention. In the using process, buildings not only have the inherent energy consumption but also have the energy consumption of equipment that is installed for improving the indoor environment. This study aims to investigate how to reduce the energy consumption of buildings through utilizing natural resources.Design/methodology/approachThis paper briefly introduces three objective functions in the building energy-saving model: building energy consumption, natural lighting and natural ventilation. Genetic algorithm was used to optimize the building parameters to achieve energy conservation and comfort improvement. Then a two-story rental building was analyzed.FindingsThe genetic algorithm converged to Pareto optimal solution set after 10,000 times of iterations, which took 61024 s. The lowest energy consumption of the scheme that was selected from the 70 optimal solutions was 5580 W/(m2K), the lighting coefficient was 5.56% and Pressure Difference Pascal Hours (PDPH) was 6453 h; compared with the initial building parameters, the building energy consumption reduced by 3.40%, the lighting coefficient increased by 11.65% and PDPH increased by 9.54%.Originality/valueIn short, the genetic algorithm can effectively optimize the energy-saving parameters of buildings.

Research on Measures of Civil Engineering Construction to Achieve the Landscape Green Energy Saving

2014 ◽  
Vol 716-717 ◽  
pp. 240-243
Author(s):  
Lin Ke ◽  
Ji Cui Chang ◽  
Quan Zheng
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Civil Engineering ◽  
Building Energy ◽  
Green Energy ◽  
Low Carbon ◽  
Engineering Construction ◽  
Building Energy Saving ◽  
Save Energy

Low-carbon environment and energy saving have gradually into the enterprise development idea. In the construction industry, civil engineering construction of energy conservation and environmental protection has reached a certain level after a period of development. It is of great significance to build energy conservation measures in civil engineering for improving environmental quality and save energy consumption. This article analyzes measures from the civil engineering overview and application status of building energy saving measures, the importance of building energy saving measures in combination with civil engineering. The measures are important for our country to make a certain contribution to saving energy consumption and realize the sustainable development.

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