Optimal design on policies of industrial eco-economic system in China under the constraint of energy saving and carbon emission

2016 ◽  
Author(s):  
Ying-bo Qin ◽  
Wen-ping Wang ◽  
Wen-wen Li
Keyword(s):  
Optimal Design ◽  
Economic System ◽  
Energy Saving ◽  
Carbon Emission

Multiobjective Robust Optimal Design of a Gas Turbine Cogeneration Plant Under Uncertain Energy Demands

2001 ◽  
Author(s):  
Ryohei Yokoyama ◽  
Koichi Ito
Keyword(s):  
Optimal Design ◽  
Energy Saving ◽  
Gas Turbine ◽  
Energy Supply ◽  
Design Method ◽  
Primary Energy ◽  
Weighted Sum ◽  
Cogeneration Plant ◽  
Energy Demands ◽  
Robust Optimal Design

A multiobjective robust optimal design method based on the minimax regret criterion is proposed for sizing equipment of energy supply plants so that they are robust in economic and energy saving characteristics under uncertain energy demands. Equipment capacities and utility contract demands as well as energy flow rates are determined to minimize a weighted sum of the maximum regrets in the annual total cost and primary energy consumption, and satisfy all the possible energy demands. This optimization problem is formulated as a kind of multilevel linear programming one, and its solution is derived by repeatedly evaluating lower and upper bounds for the optimal value of the weighted sum of the maximum regrets. Through a case study on a gas turbine cogeneration plant for district energy supply, the trade-off relationship between the robustness in economic and energy saving characteristics is clarified.

The Research on the Potential of Energy Saving and Emission Reduction in Hospitality

2013 ◽  
Vol 448-453 ◽  
pp. 4365-4368 ◽  
Author(s):  
Qi Huang ◽  
Jian Cheng Kang ◽  
Chen Hao Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Future Study ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Hospitality Industry ◽  
Conversion Factor ◽  
Eastern China ◽  
Factor Matrix ◽  
Consumption Data

Hospitality industry in China has undergone a breath-taking development in recent years. However, it is burdened both by tremendous energy consumption and the responsibility of environmental protection. The paper is trying to find out the potential in the energy saving and emission reduction. Energy consumption data, in the recent five years, are collected from more than 20 hotels in Shanghai and other eastern China regions. Through the energy conversion factor matrix, these energy consumption factors can be converted into Tce value. Though the analysis of the Tce value, the paper provides a key solution to the problem at hand and possible ways of realizing the goal of establishing basis of carbon emission assessment modeling and cumulative comprehensive energy consumption database suitable for this industry, in the hope of establishing a foundation for future study of carbon footprint of the hospitality industry and its technical proposal for energy saving.

scholarly journals A Novel Four-Dimensional Energy-Saving and Emission-Reduction System and Its Linear Feedback Control

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Minggang Wang ◽  
Hua Xu
Keyword(s):  
Feedback Control ◽  
Energy Saving ◽  
Emission Reduction ◽  
Carbon Emission ◽  
Equilibrium Points ◽  
Energy Development ◽  
Linear Feedback ◽  
Control Methods ◽  
Linear Feedback Control ◽  
New Energy

This paper reports a new four-dimensional energy-saving and emission-reduction chaotic system. The system is obtained in accordance with the complicated relationship between energy saving and emission reduction, carbon emission, economic growth, and new energy development. The dynamics behavior of the system will be analyzed by means of Lyapunov exponents and equilibrium points. Linear feedback control methods are used to suppress chaos to unstable equilibrium. Numerical simulations are presented to show these results.

Optimal Design of a Hybrid-Driven Servo Press and Experimental Verification

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
Pei-Lum Tso
Keyword(s):  
Control System ◽  
Optimal Design ◽  
Energy Saving ◽  
Experimental Verification ◽  
Iterative Learning Control ◽  
Learning Control ◽  
Iterative Learning ◽  
Servo Press ◽  
Ac Motor ◽  
Control Theories

This paper focuses on a hybrid-driven servo press, which uses not only a servomotor but also a regular ac motor with a flywheel. A PC-based control system is developed based on both feedback and iterative learning control theories on a prototype. The stamping performance, improved forming ability, and energy saving merits have been verified by the experiment. The results show that the advantages of the hybrid-driven servo press have been validated, such as its energy saving features, flexible punch speeds, and adjustable strokes, for any kind of stamping operations.

scholarly journals How to Set the Proper CO2 Reduction Targets for the Provincial Building Sector of China?

2020 ◽  
Vol 12 (24) ◽  
pp. 10432
Author(s):  
Qingwei Shi ◽  
Hong Ren ◽  
Weiguang Cai ◽  
Jingxin Gao
Keyword(s):  
Energy Saving ◽  
Co2 Emissions ◽  
Carbon Emissions ◽  
Emission Reduction ◽  
Carbon Emission ◽  
National Level ◽  
Clean Energy ◽  
Energy Structure ◽  
Building Sector ◽  
Emission Abatement

The improvement of the energy and carbon emission efficiency of activities in the building sector is the key to China’s realization of the Paris Agreement. We can explore effective emission abatement approaches for the building sector by evaluating the carbon emissions and energy efficiency of construction activities, measuring the emission abatement potential of construction activities across the country and regions, and measuring the marginal abatement cost (MAC) of China and various regions. This study calculates the energy and carbon emissions performance of the building sector of 30 provinces and regions in China from 2005 to 2015, measures the dynamic changes in the energy-saving potential and carbon emission performance of the building sector, conducts relevant verification, and estimates the MAC of the building sector by using the slacks-based measure-directional distance function. The level of energy consumption per unit of the building sector of China has been decreasing yearly, but the energy structure has changed minimally (considering that clean energy is used). The total factor technical efficiency of the building sector of various provinces, cities, and regions is generally low, as verified in the evaluation of the energy-saving and emission abatement potential of the building sector of China. The energy saving and emission abatement of the building sector of China have great potential—that is, in approximately 50% of the total emissions of the building sector of China. In particular, Northeast and North China account for more than 50% of the total energy-saving and emission abatement potential. The study of the CO2 emissions and MAC of the building sector indicates that the larger the CO2 emissions are, the smaller MAC will be. The emission abatement efficiency is proportional to MAC. Based on this research, it can be more equitable and effective in formulating provincial emission reduction policy targets at the national level, and can maximize the contribution of the building sector of various provinces to the national carbon emission reduction.

scholarly journals Optimal Design of a Distributed Energy System Using the Functional Interval Model That Allows Reduced Carbon Emissions in Guanzhong, a Rural Area of China

2019 ◽  
Vol 11 (7) ◽  
pp. 1930 ◽  
Author(s):  
Ying Zhu ◽  
Quanling Tong ◽  
Xueting Zeng ◽  
Xiaxia Yan ◽  
Yongping Li ◽  
...  
Keyword(s):  
Optimal Design ◽  
Rural Area ◽  
Lower Bounds ◽  
Carbon Emission ◽  
Energy System ◽  
Upper And Lower Bounds ◽  
Distributed Energy ◽  
Emission Mitigation ◽  
Distributed Energy System ◽  
Carbon Emission Mitigation

Nowadays, rural power supply in China plays an important role in restricting the economic development and improvement of residential living standards. In this study, an interval full-infinite programming rural energy model (IFIP-REM) was developed for supporting distributed energy system (DES) optimal design under uncertainties in rural areas. By affecting the upper and lower bounds of the interval by complex and variable external conditions, IFIP-REM could simulate the influence of external systems. To validate the model, a real case study of DES optimal design in Guanzhong, a rural area of China, was tested and aimed to minimize system cost and constraints of resources, energy supply reliability, and carbon emission mitigation. The data revealed generation of reasonable optimization schemes to obtain interval solutions of IFIP-REM. Compared to centralized energy system (CES), DES reduced electricity purchasing of the municipal grid by 47.5% and extended carbon emission of both upper and lower bounds to [17.13, 44.51] % and [12.42, 36.02] %, respectively. Overall, the proposed model could help managers make decisions of DES optimal design by coordinating conflicts among economic cost, system efficiency, and carbon emission mitigation.

A detailed calculation model for costing of green manufacturing

2016 ◽  
Vol 116 (1) ◽  
pp. 65-86 ◽  
Author(s):  
Ifeyinwa Orji ◽  
Sun Wei
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Carbon Emission ◽  
Cost Model ◽  
Green Manufacturing ◽  
Calculation Model ◽  
Manufacturing Firms ◽  
Cost Calculation ◽  
Content Type ◽  
Engineering Managers

Purpose – Manufacturing firms are expected to implement green manufacturing and increase product complexity at a competitive price. However, a major problem for engineering managers is to ascertain the costs of embarking on green manufacturing. Thus, a planning and control methodology for costing of green manufacturing at the early design stage is important for engineering managers. The paper aims to discuss these issues. Design/methodology/approach – This paper integrates “green manufacturing,” concepts of industrial dynamics, and product lifecycle aiming at developing a methodology for cost calculation. The methodology comprises of a process-based cost model and a systems dynamics (SD) model. The process-based cost model focusses mainly on carbon emission costs and energy-saving activities. Important metrics usually ignored in traditional static modeling were incorporated using SD model. Findings – Equipment costs and carbon emission costs are major components of costs in manufacturing. The total life cycle cost of product in green manufacturing is lower than that of same product in conventional manufacturing. Research limitations/implications – The specific results of this study are limited to the case company, but can hopefully contribute to further research on ascertaining cost of implementing “green issues” in manufacturing. The proposed cost calculation model can be efficiently applied in any manufacturing firm on the basis of accessibility of real cost data. This necessitates a comprehensive cost database. At the development of the model and database management system, time and cost resources could be demanding, but once installed, use of the model becomes less demanding. Practical implications – The cost model provides cost justifications of implementing green manufacturing. The reality is that green manufacturing will see its development peak with cost justifications. The results of the application show that the proposed detailed cost model can be effective in ascertaining costs of implementing green manufacturing. Manufacturing firms are recommended to adopt energy-saving activities based on the proposed detailed cost calculation model. Originality/value – The main contributions of the study includes: first, to help engineering managers more accurately understand how to allocate resources for energy-saving activities through appropriate cost drivers. Second, to simulate with SD the dynamic behavior of few important metrics, often ignored in traditional mathematical modeling. The detailed model provides a pre-manufacturing decision-making tool which will assist management in implementing green manufacturing by incorporating a life cycle assessment measurement into manufacturing cost management.

Carbon Balance in Nanjing's Ecological Economic System

2014 ◽  
Vol 881-883 ◽  
pp. 610-616
Author(s):  
Lu Yang ◽  
Jin He Zhang ◽  
Ze Hua Liu ◽  
Jin Kun Sun
Keyword(s):  
Economic System ◽  
Carbon Balance ◽  
Carbon Emission ◽  
Ecological Environment ◽  
Cultivated Land ◽  
Ecological Economic ◽  
Sustainable Urbanization ◽  
Nanjing City ◽  
The Relationship ◽  
New Urbanization

Along with new urbanization, substantial debates have been triggered on whether urban ecological economic system of CO2 balance relates to the sustainable urbanization. Based on the data of Nanjing city, China, in 2010, we calculate the total amount of CO2 emission and CO2 sequestration. Results show that CO2 emission mainly comes from industrial production (63.19%) and transportation (33.44%). Moreover, industrial raw coal (51.69%) is the main source of the carbon emission, whereas cultivated land (68.62%) and forestland (27.59%) are the most important carriers of CO2 sequestration. According to the calibrated results, we conclude that: (1) The relationship between the urban ecological subsystem and economic subsystem is uncoordinated; (2) Nanjing's economic development exerts particular influences on other regions ecological environment.

Theory and Technique on Design of Extended Range in Solar Powered Intellective Vehicles

2013 ◽  
Vol 300-301 ◽  
pp. 199-202 ◽  
Author(s):  
Ding Yue Chen ◽  
Hai Peng Wu ◽  
Jian Chao Bao ◽  
Li Feng Wang ◽  
Zhao Bin Gu ◽  
...  
Keyword(s):  
Optimal Design ◽  
Solar Energy ◽  
Energy Saving ◽  
Environmental Protection ◽  
Low Carbon ◽  
Photovoltaic Array ◽  
Extended Range ◽  
Solar Powered ◽  
Target Design ◽  
Electrical Source

Solar powered intellective vehicles (SPIVs) not only focus on energy saving and environmental protection, but also have finer feasibility. The design of extended range in SPIVs is a kind of the important directions that low carbon green vehicles will be design in future. We will reflect demanding design of extended range shoot to convert the target design level. The optimal design is actualized for photovoltaic array collocation of solar energy in SPIVs. The “zero oils consume, zero exhaust, increment drives distance” demand of SPIVs are carry out by the vehicle with design carries to net electrical source system of extended range.

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