Research on the Construction of Energy Network Based on Modular Energy Service Industry
Dong Jun,
Lv Shanlei,
Wang Dongxue,
Guo Yuanzheng
Issue:
Volume 5, Issue 5, September 2017
Pages:
26-33
Received:
14 September 2017
Accepted:
29 September 2017
Published:
8 November 2017
Abstract: The energy services industry in China is still in the early stage of development, and it's the size of the industry as well as the existing service level is not enough to meet the diverse needs of the market, and the current industry value chain system is not perfect enough. This paper first analyzes the main elements of the energy service industry and its main body behavior, and further sums up the value link between the various subjects; Secondly, based on the modular and value network theory, the construction of energy service industry value network, the main purpose is to increase the understanding of the energy service industry value network and operational mechanism. The results show that the energy service industry value network is different from the traditional value network system. Under the impetus of the modularization trend, the multi-service module main body, the division of labor and cooperation among the major modules, effectively integrated into the industrial value network to achieve value creation and maximize value.
Abstract: The energy services industry in China is still in the early stage of development, and it's the size of the industry as well as the existing service level is not enough to meet the diverse needs of the market, and the current industry value chain system is not perfect enough. This paper first analyzes the main elements of the energy service industry...
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Review on Sludge Drying Process and Dryer in Solar Energy
Issue:
Volume 5, Issue 5, September 2017
Pages:
34-38
Received:
20 October 2017
Accepted:
17 November 2017
Published:
7 December 2017
Abstract: The objective of this work is to give the fundamental information that should be known about solar sludge drying. The solar sludge drying process and characteristics are presented. Based on some researchers’ theoretical analysis and experimental results, the main influence factors of sludge drying process are air temperature and humidity, drying air flow rate, intensity of solar radiation, sludge thickness and drying ways. Some innovative developed solar sludge drying systems are exposed in this review, such as the use of waste flue gas heat/sun capable system. Finally author put forward a new way of solar heat pipe-greenhouse drying system.
Abstract: The objective of this work is to give the fundamental information that should be known about solar sludge drying. The solar sludge drying process and characteristics are presented. Based on some researchers’ theoretical analysis and experimental results, the main influence factors of sludge drying process are air temperature and humidity, drying ai...
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Debottlenecking and Retrofitting by Pinch Analysis in a Chemical Plant
Nursen Akgun,
Zehra Ozcelik
Issue:
Volume 5, Issue 5, September 2017
Pages:
39-49
Received:
2 October 2017
Accepted:
27 October 2017
Published:
11 December 2017
Abstract: Energy saving, global warming and greenhouse gas emissions have become major technological, social and political issues. Being closely related to energy supply, they are of a strategic significance. Today, especially energy-sensitive industries such as refining and petrochemical are targeting to recover maximum amount of energy by applying Process Integration (PI) that deals with the energy efficiency, waste minimization and effective use of raw materials. Pinch Analysis is a structured approach and a systematic tool of PI. The prime objective of Pinch Analysis is to achieve financial savings by better process heat integration and reduce the externally provided energy requirements by recovering the maximum amount of energy within the system. It is also employed to improve effluent quality, reduce emissions, increase product yield and improve the flexibility and safety of the process. Properly calculated pinch targets have economic implications such as reduction of operating cost and capital investment. This study deals with energy saving strategies in a real VCM (Vinyl-Chloride-Monomer) plant by applying pinch method. The prime objective of this work is to achieve financial savings by better process heat integration (maximizing process-to-process heat recovery and reducing the external utility loads). It examines the existing process and introduces two alternative retrofit cases. Targets for heat recovery and utilities have been calculated (taking ΔTmin=10°C). Existing process and alternative cases have been compared. According to Retrofit 1, energy recovery reaches up to 12.51% whereas utility reduction is 57.24%. Retrofit 2 states that the recovered energy is 10.45% while the utility reduction is 47.83%. The results obtained indicate that there is a remarkable improvement in energy recovery and utility saving.
Abstract: Energy saving, global warming and greenhouse gas emissions have become major technological, social and political issues. Being closely related to energy supply, they are of a strategic significance. Today, especially energy-sensitive industries such as refining and petrochemical are targeting to recover maximum amount of energy by applying Process ...
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