Typical Industrial Park Research Articles

Industrial integrated energy system optimization with considering thermal power transferring process

In the regional integrated energy system, multiple resources on the demand side and supply side should be considered in integrated planning. In particular, how to realize measuring heat energy grade as well as considering thermal energy transferring medium characteristics in the integrated energy system optimization operation and resource allocation is a urgent research area to explore. In this paper, a typical industrial park integrated energy system considering thermal energy transferring process is established. In the beginning, multi-energy flows complementary characteristics of the industrial park have been introduced, which could improve energy usage efficiency by energy conversion, energy storage and energy substitution. Then the models of storage battery, micro-turbine and other resources have been established. In addition, the model of heat energy pipe network has been built considering thermal energy unidirectional transmission and various heat grade. Based on the previous models, the objective function of industrial park economic operation. Finally, the simulation results show that the proposed multi-energy flows model could satisfy the economical operation as well as energy supply balance while obeying energy conservation law and transferring process limit.

Is ozonation environmentally benign for reverse osmosis concentrate treatment? Four-level analysis on toxicity reduction based on organic matter fractionation

Ozonation is a promising option to treat reverse osmosis concentrate (ROC). However, a systematic understanding and assessment of ozonation on toxicity reduction is insufficient. In this study, ROC sampled from a typical industrial park wastewater treatment plant of China was fractionated into hydrophobic acid (HOA), hydrophobic base (HOB), hydrophobic neutral (HON), and hydrophilic fraction (HI). Systematic bioassays covering bacteria, algae, fish, and human cell lines were conducted to reveal the role of ozonation in toxicity variation of the four ROC fractions. HOA in the raw ROC exhibited the highest toxicity, followed by HON and HI. Ozonation significantly reduced total organic carbon (TOC) and UV254 values in HOA, HON, and HI and their toxicity except in HOB. Correlation analysis indicated that chemical data (TOC and UV254) of HOA and HON correlated well with their toxicities; however, poor correlations were observed for HOB and HI, suggesting that a battery of toxicity assays is necessary. This study indicates that TOC reduction during ozonation could not fully reflect the toxicity issue, and toxicity assessment is required in conjunction with the chemical data to evaluate the effectiveness of ozonation.

Emergy evaluation for a low-carbon industrial park

As the basic units of eco-city development, low-carbon industrial parks significantly contribute to national environmental protection and carbon emission mitigation. This paper established an embodied carbon accounting framework based on emergy to identify the input–output structure and embodied carbon emission flows of the industrial park. An emergy-based embodied carbon indicator system was also set up to evaluate the low-carbon system performance. The case study of a typical industrial park in Beijing shows that the embodied carbon emissions of the whole process are mainly concentrated on the outside inputs, waste management and water recycling, of which the outside inputs have lower embodied carbon emission intensities than those of the waste management and water recycling sectors. The embodied carbon emission intensity associated with the exploitation of local renewable resources is lower than that of non-renewable resources. The embodied carbon-related sustainability indicator (ESICO2) is large, implying that the case park can sustain a balance between embodied carbon emission level and environment supporting ability. Particularly, the embodied carbon emission intensity of waste management per unit emergy yield is low, indicating that the environmental remediation cost of the total production of case park is relatively small.

Ternary emergetic environmental performance auditing of a typical industrial park in Beijing

An industrial park is characterized as a cluster of industries designed to meet compatible demands of different economic organizations within one location, which is pivotal to drive the regional economic growth of developing countries. The concentrated industrial activities inevitably result in substantial resource consumption and corresponding environmental emissions. Environmental auditing, which is used for the checking and verification of environmental performance, is an effective tool for investigating environmental emissions and resource consumption status and alleviation potential in industrial parks. As one of the environmental auditing technologies, emergy analysis, which provides a systematic approach in identifying the balance between socioeconomic development and natural environment, is employed in this paper. Specifically, a ternary emergetic environmental performance auditing framework was proposed to evaluate the behavior (preliminary work), ecological-economic efficiency (Level 1), environmental impact (Level 2), and mitigation effect (Level 3) of a typical industrial park in Beijing. The result showed that the concerned industrial park mainly depends on labor and service inputs and has a relatively high economic efficiency. However, the large dependence on purchased emergy exerted great pressure on the resource and environment, and affect the stability of the industrial park. The proposed framework may help reveal the value that free environmental services and resources offer to a specific system and thus can be complementary to the existing environmental performance auditing tools.

Research on Improved CCHP System Based on Comprehensive Performance Evaluation Criterion

In view of energy consumption characteristics of a typical industrial park, to further improve the low-grade waste heat utilization of CCHP system, an improved CCHP triple-generation system (ITRI) equipped with thermal storage device (TSD) and electric chiller (EC) is proposed. A comprehensive performance evaluation criterion (CPEC) is established, the capacity of triple-generation system is configured by using nonlinear programming method. A hybrid operating mode optimization strategy is proposed based on the different CPEC values of different operating mode. The results demonstrate that: after adopting ITRI, compared with traditional triple-generation system (TTRI), although annual cost increased by 0.63%, the primary energy consumption rate and lower carbon dioxide emissions decreased by 5.45% and 3.72% respectively, CPEC value increased by 19.7%. This paper has a theoretical guidance for design of triple-generation system in new industrial park and has a certain reference value for operating mode optimization of triple-generation system in the industrial parks which has been built.

Supply Hub in Industrial Park (SHIP): The value of freight consolidation

Industrial parks, characterized as a cluster of enterprises situated in one location to share common resources, have played an indispensible role in boosting regional economic and industrial development. However, further development has been impeded by the shortage of land space, especially for the construction of warehouses. This paper proposes the concept of Supply Hub in Industrial Park (SHIP) as a promising approach addressing this challenge. SHIP is defined as a public provider of warehousing and logistics services for manufacturing enterprises located within an industrial park. The research reported in this paper focuses on evaluating the value of freight consolidation, one of the typical benefits of applying the SHIP approach. Two mathematical models of the supply chain in a typical industrial park are formulated: with and without SHIP. Genetic Algorithm (GA) is applied for solving the two models, and sensitivity experiments are conducted for comparative analysis between the two scenarios. The computational results show that through consolidating shipments, SHIP brings benefits to the whole industrial park. Total cost savings resulted from the application of SHIP would increase with the size of the supply chain, the vehicle capacity, and the rates of fixed transportation costs and holding costs of finished products at manufacturers.

Nonlocality in physics and psychology

Abstract Walking through the guarded gate of CERN. a center for peaceful atomic research near Geneva, Switzerland, one finds oneself in what seems to be a typical industrial park Upon coming to thefirst corner, one has a sense of the surreal tofind pleasant signs marking it as the intersection of Einstein and W. Pauli streets. Ambling along a bit further, one comes to a quiet, treeshaded building housing the office of theoretical physicist, John Stewart Bell, whose work on “nonlocality” is regarded by some as fermenting yet another conceptual revolution in our world view. With an almost shy Irish brogue from his native Dublin, however, Bell modestly disavows any such significance to what is called “Bell's Inequality” in the literature of quantum physics. In this interview, our editor queried Bell on the relevance of his work for Jung's view of synchronicity as a non- causal factor in human affairs. Bell cautions that everything he says here is only his “opinion of the mystery and muddle of it all.”