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苏州某大型综合医院建筑能耗分析与节能探讨 预览
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作者 林然 《建筑节能》 CAS 2019年第2期57-59,63共4页
对苏州市某大型综合性医院2014-2016年的能源消费情况进行了统计分析,医院的能源形式包含了电力、天然气、市政蒸汽,其中电力和市政蒸汽共占到医院总能耗量的97.20%,医院用能处于苏州同类型综合医院的中等水平,同时对本医院后期的节能... 对苏州市某大型综合性医院2014-2016年的能源消费情况进行了统计分析,医院的能源形式包含了电力、天然气、市政蒸汽,其中电力和市政蒸汽共占到医院总能耗量的97.20%,医院用能处于苏州同类型综合医院的中等水平,同时对本医院后期的节能策略进行了探讨,以期为当地医院类建筑节能提供参考。 展开更多
关键词 综合性医院 能源 用能水平 节能策略
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Decentralized Control for Residential Energy Management of a Smart Users’ Microgrid with Renewable Energy Exchange 预览
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作者 Raffaele Carli Mariagrazia Dotoli 《自动化学报:英文版》 CSCD 2019年第3期641-656,共16页
This paper presents a decentralized control strategy for the scheduling of electrical energy activities of a microgrid composed of smart homes connected to a distributor and exchanging renewable energy produced by ind... This paper presents a decentralized control strategy for the scheduling of electrical energy activities of a microgrid composed of smart homes connected to a distributor and exchanging renewable energy produced by individually owned distributed energy resources. The scheduling problem is stated and solved with the aim of reducing the overall energy supply from the grid, by allowing users to exchange the surplus renewable energy and by optimally planning users’ controllable loads. We assume that each smart home can both buy/sell energy from/to the grid taking into account time-varying non-linear pricing signals. Simultaneously, smart homes cooperate and may buy/sell locally harvested renewable energy from/to other smart homes. The resulting optimization problem is formulated as a non-convex non-linear programming problem with a coupling of decision variables in the constraints. The proposed solution is based on a novel heuristic iterative decentralized scheme algorithm that suitably extends the Alternating Direction Method of Multipliers to a non-convex and decentralized setting. We discuss the conditions that guarantee the convergence of the presented algorithm. Finally, the application of the proposed technique to a case study under several scenarios shows its effectiveness. 展开更多
关键词 Alternating direction method of multipliers decentralized control ENERGY MANAGEMENT MICROGRID non-convex optimization RENEWABLE ENERGY RESIDENTIAL ENERGY MANAGEMENT SMART homes
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Basic characteristics of nuclear landscape by improved Weizs-cker-Skyrmetype nuclear mass model
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作者 马娜娜 张海飞 +1 位作者 包小军 张鸿飞 《中国物理C:英文版》 SCIE CAS CSCD 2019年第4期114-129,共16页
Atomic Mass Evaluation(AME2016) has replenished the latest nuclear binding energy data. Other physical observables, such as the separated energies, decay energies, and the pairing gaps, were evaluated based on the new... Atomic Mass Evaluation(AME2016) has replenished the latest nuclear binding energy data. Other physical observables, such as the separated energies, decay energies, and the pairing gaps, were evaluated based on the new mass table. An improved Weizs?cker-Skyrme-type(WS-type) nuclear mass model with only 13 parameters was presented, including the correction from two combinatorial radial basis functions(RBFs), where shell and pairing effects are simultaneously dealt with using a Strutinsky-like method. The RBFs code had 2267 updated experimental binding energies as inputs, and their correspondent root-mean square(rms) deviations dropped to 149 keV. For the training of other mass models by RBFs correction, rms deviations are clustered between 100 keV to 200 keV. Compared with other experimental quantities, the rms deviations calculated within the improved WS-type model falls between 100 keV and 250 keV. We extrapolate the binding energies to 12435 nuclei, which covers the ranges 8 ≤ Z ≤ 128 and 8 ≤ N ≤ 251 in the framework of the WS-type model with RBFs correction. Simultaneously, the ground state deformations β2,4,6 and all parts in the WS-type mass formula are presented in this paper. Finally, we tabulated all calculated characteristics within the improved formula and linked them to https://github.com/lukeronger/Nuclear Data-LZU: nuclear binding energies, one-nucleon and two-nucleon separation energies(Sn,p,2n,2p), and β-decay energies( Qα and Qβ-,β+,EC), and the pairing gap △n and △p. 展开更多
关键词 mass model RADIAL basis functions binding ENERGY SEPARATED ENERGY DECAY ENERGY PAIRING gap
Energy loss of degrader in SC200 proton therapy facility 预览
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作者 Feng Jiang Yun-Tao Song +4 位作者 Jin-Xing Zheng Xian-Hu Zeng Peng-Yu Wang Jun-Sheng Zhang Wu-Quan Zhang 《核技术:英文版》 SCIE CAS CSCD 2019年第1期11-18,共8页
The proton beam energy determines the range of particles and thus where the dose is deposited. According to the depth of tumors, an energy degrader is needed to modulate the proton beam energy in proton therapy facili... The proton beam energy determines the range of particles and thus where the dose is deposited. According to the depth of tumors, an energy degrader is needed to modulate the proton beam energy in proton therapy facilities based on cyclotrons, because the energy of beam extracted from the cyclotron is fixed. The energy loss was simulated for the graphite degrader used in the beamline at the superconducting cyclotron of 200 MeV in Hefei(SC200). After adjusting the mean excitation energy of the graphite used in the degrader to 76 eV, we observed an accurate match between the simulations and measurements.We also simulated the energy spread of the degraded beam and the transmission of the degrader using theoretical formulae. The results agree well with the Monte Carlo simulation. 展开更多
关键词 Degrader ENERGY LOSS Mean EXCITATION ENERGY ENERGY SPREAD Transmission
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从孤立到开放——系统生态学视野下现代建筑能量实践反思
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作者 郑斐 刘甦 王月涛 《新建筑》 2019年第1期66-71,共6页
在系统生态学视野下,从科学、技术和文化方面探讨了现代建筑能量实践中孤立系统观的三大历史成因:以基于热传导的热力学研究为初始因,以源于冷藏工业的绝热技术发展为扩散因,以节约的道德观念为持续因;从孤立到开放,明确了建筑能量系统... 在系统生态学视野下,从科学、技术和文化方面探讨了现代建筑能量实践中孤立系统观的三大历史成因:以基于热传导的热力学研究为初始因,以源于冷藏工业的绝热技术发展为扩散因,以节约的道德观念为持续因;从孤立到开放,明确了建筑能量系统时空中的开放耗散结构特征;并结合系统生态学理论和能值分析方法,探讨了一种开放的建筑能量系统的分析和评价方法。所有这些将为未来生态、系统和高效的绿色建筑设计和实践提供理论与方法支持,对绿色建筑的教育和发展具有借鉴意义。 展开更多
关键词 系统生态学 能量 能值分析 现代建筑 系统论 绿色建筑
能源和矿产资源资产负债表编制及应用探讨 预览
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作者 耿建新 吕晓敏 +1 位作者 石吉金 刘尚睿 《中国国土资源经济》 2019年第2期4-14,共11页
环境承载能力的限制和能源矿产资源储量的约束,使得良好有效的能源管理和环境治理手段的重要性愈发凸显。联合国和澳大利亚实施的环境经济核算体系(SEEA,AEEA)能清晰地分析一国或一个地区能源矿产资源的“来龙去脉”,并通过“供给=使用... 环境承载能力的限制和能源矿产资源储量的约束,使得良好有效的能源管理和环境治理手段的重要性愈发凸显。联合国和澳大利亚实施的环境经济核算体系(SEEA,AEEA)能清晰地分析一国或一个地区能源矿产资源的“来龙去脉”,并通过“供给=使用”的平衡关系展现国家现有能源矿产资源管理的重点及后续发展应关注的焦点。为此,我国也应在联合国和澳大利亚实践的基础之上,编制完整、全面的能源矿产资源资产负债表,既包括流量和存量表,又包括实物量和价值量表,同时以复式表格为核心,辅之以单式表格,以完善我国能源管理和环境治理路径。 展开更多
关键词 能源 矿产资源 资产负债表 环境经济核算体系 能源管理 环境治理
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Comprehensive geochemical/hydrochemical and geo-thermometry analysis of Unai geothermal field,Gujarat,India
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作者 Manan Shah Anirbid Sircar +3 位作者 Nahid Shaikh Karan Patel Darshan Sharma Dwijen Vaidya 《中国地球化学学报:英文版》 EI CAS CSCD 2019年第1期145-158,共14页
The knowledge of water temperature produced from a geothermal reservoir and its composition is of utmost importance in designing utilization strategies,the surface production facilities and in selecting the material t... The knowledge of water temperature produced from a geothermal reservoir and its composition is of utmost importance in designing utilization strategies,the surface production facilities and in selecting the material to be used.Unai hot springs are located in the southern part of Gujarat,India with discharge temperatures varying from 51 to 56℃.With the aim of developing Unai as a potential geothermal field and exploiting it in the future,geochemical and geothermometrical study was undertaken.The samples were collected from various Unai geothermal location and analysis of chemical composition of water obtained from different wells was done.The concentration of Silica,carbonate and ions like Na and C1 have been analyzed to delineate the path of water movement in the subsurface and classify the reservoir based on the enthalpy.The ratio of the concentration of ions like Na+ and K+ and the relative proportions of various sets of ions were also used to characterize the geothermal reservoir and the reservoir fluid by the use of ternary diagrams.Na-K-Ca,Chalcedony,quartz,and Silica geo-thermometers have been studied.The present study also envisages the importance of graphical representations like Piper diagram,Scholler etc.to determine variation in hydrochemical facies and to understand the evolution of hydrochemical processes in the Unai geothermal field respectively.The study yields the conclusion that the reservoir under consideration is a low enthalpy reservoir with temperature ranging from 60 to 80 ℃. 展开更多
关键词 GEOTHERMAL ENERGY Hydrochemical GEOCHEMICAL Geothermometery RENEWABLE ENERGY
Effects of Various Deformation on the First Fission Barrier in Even-A N = 152 Isotones
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作者 柴清祯 赵维娟 王华磊 《理论物理通讯:英文版》 SCIE CAS CSCD 2019年第1期67-74,共8页
The first(namely, inner) fission barriers for even-A N = 152 nuclei have been studied systematically in the framework of macroscopic-microscopic model by means of potential energy surface(PES) calculations in the thre... The first(namely, inner) fission barriers for even-A N = 152 nuclei have been studied systematically in the framework of macroscopic-microscopic model by means of potential energy surface(PES) calculations in the threedimensional(β2, γ, β4) deformation space. Their collective properties, such as ground-state deformations, are compared with previous calculations and available observations, showing a consistent trend. In addition, it has been found that the microscopic shell correction energy plays an important role on surviving fission in these N = 152 deformed shell nuclei. The inclusion of non-axial symmetric degree of freedom γ will pull the fission barrier down more significantly with respect to the calculation involving in hexadecapole deformation β4. Furthermore, the calculated Woods-Saxon(WS) single particle levels indicate that the large microscopic shell correction energies due to low level densities may be responsible for such a reduction on the inner fission barrier. 展开更多
关键词 FISSION barriers potential ENERGY surface calculations GROUND-STATE deformations shell CORRECTION ENERGY single particle levels
Design and Operational Strategy Research for Temperature Control Systems of Isothermal Compressed Air Energy Storage Power Plants
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作者 FU Hao JIANG Tong +1 位作者 CUI Yan LI Bin 《热科学学报:英文版》 SCIE EI CAS CSCD 2019年第2期204-217,共14页
Energy storage technology is critical for intelligent power grids. It has great significance for the large-scale integration of new energy sources into the power grid and the transition of the energy structure. Based ... Energy storage technology is critical for intelligent power grids. It has great significance for the large-scale integration of new energy sources into the power grid and the transition of the energy structure. Based on the existing technology of isothermal compressed air energy storage, this paper presents a design scheme of isothermal compressed air energy storage power station, which uses liquid to compress air, hydraulic piston to transfer potential energy, hydraulic turbine to generate electricity at constant pressure, and liquid occupancy to store the gas at constant pressure. Then the technical features and control strategies of its internal temperature control subsystem are studied, and the mathematical model is constructed. A hierarchical relay operation is put forward to address the actual construction and operational requirements of compressed air energy storage power plants. Finally, through physical platform experiments and MATLAB simulation, the feasibility of the design is validated. 展开更多
关键词 HIERARCHICAL RELAY operation ISOTHERMAL compression compressed air ENERGY STORAGE power PLANT ENERGY STORAGE
Energy efficient and delay aware ternary-state transceivers for aerial base stations 预览
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作者 Nahina Islam Kandeepan Sithamparanathan +2 位作者 Karina Gomez Chavez James Scott Hamid Eltom 《数字通信与网络:英文版》 2019年第1期40-50,共11页
In recent times, Aerial Base Stations(AeBSs) are being investigated to provide wireless coverage to terrestrial radio terminals. There are many advantages of using aerial platforms to provide wireless coverage, includ... In recent times, Aerial Base Stations(AeBSs) are being investigated to provide wireless coverage to terrestrial radio terminals. There are many advantages of using aerial platforms to provide wireless coverage, including larger coverage in remote areas and better line-of-sight conditions, etc. Energy is a scarce resource for the AeBSs, hence the wise management of energy is quite beneficial for the aerial network. In this context, we study the means of reducing the total energy consumption by designing and implementing an energy efficient AeBSs as presented in this paper. Implementing the sleep mode in the Base Stations (BSs) has been proven to be a very good approach for improving the energy efficiency and we propose a novel strategy for further improving energy efficiency by considering ternary state transceivers for AeBSs. Using the three state model, we propose a Markov Decision Process (MDP) based algorithm, which intelligently switches among three states of the transceivers based on the offered traffic meanwhile maintaining a prescribed minimum channel rate per user. We define a reward function for the MDP, which helps us to get an optimal policy for selecting a particular mode for the transceivers of the AeBS. Considering an AeBS with transceivers whose states are changeable, we perform simulations to analyse the performance of the algorithm. Our results show that, compared with the always active model, around 40% gain in the energy efficiency is achieved by using our proposed MDP algorithm together with the three-state transceivers model. We also show the energy-delay tradeoff in order to design an efficient AeBS. 展开更多
关键词 AERIAL base station UAV Green communication SLEEP mode Markov decision process ENERGY efficiency ENERGY DELAY TRADEOFF
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Frequency control of future power systems: reviewing and evaluating challenges and new control methods 预览
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作者 Zeyad Assi OBAID Liana M.CIPCIGAN +1 位作者 Lahieb ABRAHIM Mazin T.MUHSSIN 《现代电力系统与清洁能源学报(英文)》 CSCD 2019年第1期9-25,共17页
Integration of more renewable energy resources introduces a challenge in frequency control of future power systems.This paper reviews and evaluates the possible challenges and the new control methods of frequency in f... Integration of more renewable energy resources introduces a challenge in frequency control of future power systems.This paper reviews and evaluates the possible challenges and the new control methods of frequency in future power systems.Different types of loads and distributed energy resources(DERs) are reviewed.A model representation of a population of the water heater devices for the demand side frequency response is considered.A model representation of a population of battery energy storage system(BESS)-based DERs such as smart electric vehicles(EVs) charging, large-scale BESSs, and residential and non-residential BESSs, are highlighted.The simplified Great Britain power system and the 14-machine South-East Australian power system were used to demonstrate the effectiveness of the new methods in controlling power system frequency following a disturbance.These new methods are effective in recovering the fallen frequency response and present a great potential in controlling the frequency in future power systems. 展开更多
关键词 Battery ENERGY storage system(BESS) Distributed ENERGY resource(DER) Electric vehicle HOME-BASED BESS Large-scale BESS AGGREGATION Demand side response Frequency control Markov chain
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GLOBAL EXPONENTIAL NONLINEAR STABILITY FOR DOUBLE DIFFUSIVE CONVECTION IN POROUS MEDIUM 预览
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作者 许兰喜 李紫奕 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第1期119-126,共8页
Nonlinear stability of the motionless double-diffusive solution of the problem of an infinite horizontal fluid layer saturated porous medium is studied. The layer is heated and salted from below. By introducing two ba... Nonlinear stability of the motionless double-diffusive solution of the problem of an infinite horizontal fluid layer saturated porous medium is studied. The layer is heated and salted from below. By introducing two balance fields and through defining new energy functionals it is proved that for CLe ≥ R, Le ≤ 1 the motionless double-diffusive solution is always stable and for CLe < R, Le < 1 the solution is globally exponentially and nonlinearly stable whenever R < 4π~2+ Le C, where Le, C and R are the Lewis number, Rayleigh number for solute and heat, respectively. Moreover, the nonlinear stability proved here is global and exponential, and the stabilizing effect of the concentration is also proved. 展开更多
关键词 ENERGY method ENERGY functional nonlinear stability diffusive CONVECTION POROUS MEDIUM
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Targeted energy transfer of a parallel nonlinear energy sink 预览
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作者 Yimin WEI Sha WEI +3 位作者 Qianlong ZHANG Xinjian DONG Zhike PENG Wenming ZHANG 《应用数学和力学:英文版》 SCIE EI CSCD 2019年第5期621-630,共10页
A parallel nonlinear energy sink (NES) is proposed and analyzed. The parallel NES is composed of a vibro-impact (VI) NES and a cubic NES. The dynamical equation is given, and the essential analytical investigation is ... A parallel nonlinear energy sink (NES) is proposed and analyzed. The parallel NES is composed of a vibro-impact (VI) NES and a cubic NES. The dynamical equation is given, and the essential analytical investigation is carried out to deal with the cubic nonlinearity and impact nonlinearity. Multiple time-scale expansion is introduced, and the zeroth order is derived to give a rough outline of the system. The underlying Hamilton dynamic equation is given, and then the optimal stiffness is expressed. The clearance is regarded as a critical factor for the VI. Based on the periodical impact treatment by analytical investigation, the relationships of the cubic stiffness, the clearance, and the zeroth-order attenuation amplitude of the linear primary oscillator (LPO) are obtained. A cubic NES under the optimal condition is compared with the parallel NES. Harmonic signals, harmonic signals with noises, and the excitation generated by a second-order filter are considered as the potential excitation forces on the system. The targeted energy transfer (TET) in the designed parallel NES is shown to be more efficient. 展开更多
关键词 TARGETED ENERGY transfer (TET) NONLINEAR ENERGY sink (NES) NONLINEAR VIBRATION ABSORBER impact VIBRATION reduction
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Energy feedback and synchronous dynamics of Hindmarsh–Rose neuron model with memristor
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作者 K Usha P A Subha 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第2期137-146,共10页
We analyze the energy aspects of single and coupled Hindmarsh–Rose(HR) neuron models with a quadratic flux controlled memristor. The energy function for HR neuron with memristor has been derived and the dynamics have... We analyze the energy aspects of single and coupled Hindmarsh–Rose(HR) neuron models with a quadratic flux controlled memristor. The energy function for HR neuron with memristor has been derived and the dynamics have been analyzed in the presence of various external stimuli. We found that the bursting mode of the system changes with external forcing. The negative feedback in Hamilton energy function effectively stabilizes the chaotic trajectories and controls the phase space. The Lyapunov exponents have been plotted to verify the stabilization of trajectories. The energy aspects during the synchronous dynamics of electrically coupled neurons have been analyzed. As the coupling strength increases, the average energy fluctuates and stabilizes at the point of synchronization. When the neurons are coupled via chemical synapse,the average energy variations show three important regimes: a fluctuating regime corresponding to the desynchronized, a stable region indicating synchronized and a linearly increasing regime corresponding to the amplitude death states have been observed. The synchronization transitions are verified by plotting the transverse Lyapunov exponents. The proposed method has a large number of applications in controlling coupled chaotic systems and in analyzing the energy change during various metabolic processes. 展开更多
关键词 HR model MEMRISTOR HAMILTON ENERGY ENERGY FEEDBACK synchronization
Selecting and optimal sizing of hybridized energy storage systems for tidal energy integration into power grid 预览
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作者 Seifeddine BEN ELGHALI Rachid OUTBIB Mohamed BENBOUZID 《现代电力系统与清洁能源学报(英文)》 CSCD 2019年第1期113-122,共10页
The high penetration of renewable energy systems with fluctuating power generation into the electric grids affects considerably the electric power quality and supply reliability.Therefore, energy storage resources are... The high penetration of renewable energy systems with fluctuating power generation into the electric grids affects considerably the electric power quality and supply reliability.Therefore, energy storage resources are used to deal with the challenges imposed by power variability and demand-supply balance.The main focus of this paper is to investigate the appropriate storage technologies and the capacity needed for a successful tidal power integration.Therefore, a simplified sizing method, integrating an energy management strategy, is proposed.This method allows the selection of the adequate storage technologies and determines the required least-cost storage capacity by considering their technological limits associated with different power dynamics.The optimal solutions given by the multi-objective evolutionary algorithm are presented and analyzed. 展开更多
关键词 TIDAL ENERGY ENERGY storage system OPTIMAL SIZING Selection
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Can China Solve Africa’s Energy Crisis with Green Energy?
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《中国与非洲:英文版》 2019年第2期46-47,共2页
Aglobal crisis in climate change is a challenge every country will have ,to face.China has chosen to step up as the leader of the fight against the rise in atmospheric temperature,after the United States withdrew from... Aglobal crisis in climate change is a challenge every country will have ,to face.China has chosen to step up as the leader of the fight against the rise in atmospheric temperature,after the United States withdrew from the Paris Agreement,and has over many years invested billions into green development projects.Africa,a continent with a rapidly growing population, is in an energy crisis as many nations fail to meet their domestic demand. 展开更多
关键词 Green ENERGY ENERGY CRISIS AFRICA
能源行业的社会性监管探析 预览
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作者 孟祥虎 《湖北开放职业学院学报》 2019年第7期127-128,131共3页
能源始终是关乎国家经济发展的命脉,能源行业的发展始终是人们关注的重点,在能源监管中,社会性监管则关注能源与其周遭诸多因素共存的问题,主要包括生态环境、行业安全和能源消费者权益保护。然而我国对于能源社会性监管存在立法不完善... 能源始终是关乎国家经济发展的命脉,能源行业的发展始终是人们关注的重点,在能源监管中,社会性监管则关注能源与其周遭诸多因素共存的问题,主要包括生态环境、行业安全和能源消费者权益保护。然而我国对于能源社会性监管存在立法不完善、监管主体单一不充分、行业标准不规范等问题。针对以上问题,提出完善《能源法》等法律法规、多元化的监督主体以及提高监督能力的建议,以此加强对能源行业的社会性监管,促进能源行业的安全和持续发展。 展开更多
关键词 能源 社会性 能源监管 监管能力
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Energy Consumption and Energy Use Characteristics of High-Rise Hotels: A Case Study of Xi’an, Shaanxi 预览
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作者 LI Xueping WU Yue 《景观研究:英文版》 2019年第2期99-103,共5页
In this paper, 5 high-rise hotels in Xi’an were selected for research, their energy consumption data from 2015 to 2016 were collected and analyzed, their comprehensive energy consumption per unit area was compared by... In this paper, 5 high-rise hotels in Xi’an were selected for research, their energy consumption data from 2015 to 2016 were collected and analyzed, their comprehensive energy consumption per unit area was compared by using the standard coal coefficient, and their energy use characteristics and influencing factors were obtained. The test analyzed various parameters of the indoor environment and evaluated the indoor environmental quality according to the specifications and standards. Starting from the perspective of energy use systems, this paper found energy consumption priorities and problems of these hotels, and proposed feasible energy conservation measures, in a view to providing a reference for energy conservation design of high-rise hotels in Xi’an. 展开更多
关键词 HIGH-RISE HOTELS ENERGY consumption Indoor environment ENERGY use CHARACTERISTICS
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城镇污水收集处理系统提质增效过程中节能减排可行性分析 预览
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作者 赵晔 陈玮 +4 位作者 徐慧纬 高伟 程彩霞 张晓亮 梁雨雯 《给水排水》 CSCD 北大核心 2019年第1期42-46,54共6页
污水处理厂电费约占日常运行费的40%,近年来,许多地方大力推进城镇污水处理厂提标改造,进一步增加了电耗,提高日常运行费用。分析了近10年城镇污水处理厂的运行数据,基于产污系数法测算了城镇污水处理厂提标到地表水准Ⅳ类标准和改善污... 污水处理厂电费约占日常运行费的40%,近年来,许多地方大力推进城镇污水处理厂提标改造,进一步增加了电耗,提高日常运行费用。分析了近10年城镇污水处理厂的运行数据,基于产污系数法测算了城镇污水处理厂提标到地表水准Ⅳ类标准和改善污水收集管网两种情形下削减BOD及新增能耗。结果显示,若将全国城镇污水处理厂全部提标到准Ⅳ类,可新增BOD削减7.75万t/年,同时新增能耗202 100万kW·h/年;若将全国污水管网进行修复改善,可新增BOD削减量306万t/年,同时新增能耗245 170万kW·h/年,通过提高进水浓度新增的BOD削减量,其单位能耗仅为目前单位BOD消减所需能耗的约1/2,节能效果显著。 展开更多
关键词 城镇污水处理 提质增效 能耗 节能减排 污水处理费
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世界能源演进路径与中国能源结构的转型
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作者 方行明 何春丽 张蓓 《政治经济学评论》 CSSCI 北大核心 2019年第2期178-201,共24页
不可再生能源(化石能源)在资源与环境上的不可持续性,决定着化石能源这条能源路径的不可持续性;而核聚变反应堆的发展因技术上存在许多难关难以攻克,其在未来能否进入人类的商业使用领域存在不确定性,因而最有可能的路径是以可再生能源... 不可再生能源(化石能源)在资源与环境上的不可持续性,决定着化石能源这条能源路径的不可持续性;而核聚变反应堆的发展因技术上存在许多难关难以攻克,其在未来能否进入人类的商业使用领域存在不确定性,因而最有可能的路径是以可再生能源为主导的能源路径。在这一能源路径的演进过程中,人类面临许多挑战。本文在世界能源演进路径的大背景下,探讨中国的能源演进路径及在进入'新常态'下中国能源结构的转型,包括转型的方向、转型存在的困难和瓶颈以及应对措施。中国仍然存在化石能源路径依赖,突破这一路径依赖取决于能源技术与管理模式创新。 展开更多
关键词 能源 演进路径 能源结构 新常态 转型
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