Abstract:Ice slurry, as a very attractive coolant which can outperform many single-phase heat transfer fluid medium in energy storage denstiy due to latent heat from fusion of ice crystals has attracted great attention. However, the size increase and shape change of ice crystal when stored adiabatically, not only decreases the melting rates of ice slurries in heat exchange but also can result in pressure drop or even fatal clogging in pipes. This seriously hinders the widely practical use of ice slurries for transport of cold energy. Efforts must be put to inhibite the ice crystal growth. This paper reviews ice crystal growth characterization and its growth control by using additives. Additives include anti-freeze protein (AFP) and the substitute such as polyvinyl alcohol (PVA), silane coupling agents and surfactants. For AFP and PVOH, the mechanism of growth control is thermal hysteresis, while, for surfactants, the mechanism has not been reported. Function groups of additives that cause adsorption are summarized. And the issues that crying needs to be solved to expand the ice slurry utilization is given. The review will help people fully understand the research status of ice crystal growth.

Alert Name:
Alerting to:
Authentication email will be sent to your email address in 24 hours
Frequency:
Email Message Format:	Plain text Graphical(HTML)

Complete the form below and we will recommend the selected titles to your friends on your behalf. * Indicates a required field.
Your name*:
Your email address*:
Recipient's name*:
Recipient's email address*:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find the page(s) useful.

Your name:
Your email address:
Recipient's name:
Recipient's email address:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find this page useful.

Disclaimer: This message was sent to your friend using the "Send it to a friend" facility on the Sciencepaper Online’ WWW site, http://www.paper.edu.cn/en. The Sciencepaper Online is not responsible for the content of this email, and anything said in this email does not necessarily reflect the Sciencepaper Online's views.


	1. A review of ice crystal growth characterization and its growth control by using additives
	ZHAO Jun,ZHAO Xiaozhi,AN Qingsong,GAO Liuhua
	Dynamic and Electronic Engineering 20 November 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Ice slurry, as a very attractive coolant which can outperform many single-phase heat transfer fluid medium in energy storage denstiy due to latent heat from fusion of ice crystals has attracted great attention. However, the size increase and shape change of ice crystal when stored adiabatically, not only decreases the melting rates of ice slurries in heat exchange but also can result in pressure drop or even fatal clogging in pipes. This seriously hinders the widely practical use of ice slurries for transport of cold energy. Efforts must be put to inhibite the ice crystal growth. This paper reviews ice crystal growth characterization and its growth control by using additives. Additives include anti-freeze protein (AFP) and the substitute such as polyvinyl alcohol (PVA), silane coupling agents and surfactants. For AFP and PVOH, the mechanism of growth control is thermal hysteresis, while, for surfactants, the mechanism has not been reported. Function groups of additives that cause adsorption are summarized. And the issues that crying needs to be solved to expand the ice slurry utilization is given. The review will help people fully understand the research status of ice crystal growth.
	TO cite this article:ZHAO Jun,ZHAO Xiaozhi,AN Qingsong, et al. A review of ice crystal growth characterization and its growth control by using additives[OL].[20 November 2015] http://en.paper.edu.cn/en_releasepaper/content/4663602


	2. The pulse exciting source and its application in electromagnetic acoustic emission
	Zhang Chuang,Li Fubiao,Liu Suzhen,Cai Zhichao,Xiao Yang
	Dynamic and Electronic Engineering 29 October 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Electromagnetic loading in the metal structures will produce stress wave signal at the edge of the crack and this phenomenon can be used in nondestructive testing of metal defects. As the core of electromagnetic load, the output parameters of the exciting source, such as current frequency and amplitude, have a significant impact on loading effect. For the loading demand of the electromagnetic acoustic emission (EMAE), using the energy storage of the capacitor, the pulse high current which the EMAE needs can be achieved by capacitor discharging instantaneous. It designs the adjustable regulated power supply based on semi-bridge switching circuit principle. The parameter display and adjustment module can be achieved based on the single-chip system. Applying to the EMAE experiment, it can reach the expected target.?????
	TO cite this article:Zhang Chuang,Li Fubiao,Liu Suzhen, et al. The pulse exciting source and its application in electromagnetic acoustic emission[OL].[29 October 2015] http://en.paper.edu.cn/en_releasepaper/content/4659531

Saved Papers

Saved Papers


	3. Frequency Tracking Based on Least Squares Algorithms
	GUO Hengdao
	Dynamic and Electronic Engineering 16 October 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:System stability plays an important role in electric power systems. With the development of electric power system, the scale of the electric grid is now becoming larger and larger, and many renewable energy resources are integrated in the grid. However, at the same time, the stability and safety issues of electric power system are becoming more complicated. Frequency is one of the most critical parameters of the system stability. Obtaining the parameter has been a great challenge for decades. Researchers have provided various kinds of algorithms for frequency tracking. Among them, Least Squares (LS) algorithm is one of the most commonly used algorithm. The paper studies the LS algorithm working on frequency tracking. In order to test the performance of the algorithm, some simulations have been made in MATLAB.
	TO cite this article:GUO Hengdao. Frequency Tracking Based on Least Squares Algorithms[OL].[16 October 2015] http://en.paper.edu.cn/en_releasepaper/content/4657589


	4. Development of Single-stage Single-phase Boost Inverter Technology
	CHEN Yiwen,CHEN Daolian
	Dynamic and Electronic Engineering 08 October 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Facing the serious energy crisis, the concise and efficient single-stage single-phase Boost inverter technology will have important application prospect in the new energy distributed power generation field and other emerging fields. Combined with the research results home and abroad of recent years, the development and current situation of such inverters have been systematically discussed from the aspect of circuit configuration and control technology in this paper for some major problems of the single-stage single-phase Boost inverters. The article gives the circuit configuration, control strategy and main experimental results of various single-stage single-phase Boost inverters, analyzes and compares the characteristics of various schemes and summarizes some inspirations brought by the development of single-stage single-phase Boost inverter technology.
	TO cite this article:CHEN Yiwen,CHEN Daolian. Development of Single-stage Single-phase Boost Inverter Technology[OL].[ 8 October 2015] http://en.paper.edu.cn/en_releasepaper/content/4656582


	5. Self-Constructing Feedback Fuzzy Neural Network based PMLSM Controller Design
	ZhangRu
	Dynamic and Electronic Engineering 24 April 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Self-constructing feedback fuzzy neural network controller (SCFFNNC) is designed to aim at the parameter uncertainties for permanent magnet linear synchronous motor (PMLSM) since they cause negative influence to the dynamic performance of PMLSM servo system. The thought about self-constructing, in which the number of neurons for the whole structure can be able to increase on line according to the variety of error, is introduced based on combining the non-linear identification of fuzzy control with self-learning of neural network. It can reserve the self-learning abilities, improve the real-time performance for neural network and then enhance the dynamic performance of PMLSM. The simulation results show that the servo system for PMLSM based on SCFFNNC can realize quick response, high precision and strong robustness for the parameter uncertainties of PMLSM.
	TO cite this article:ZhangRu. Self-Constructing Feedback Fuzzy Neural Network based PMLSM Controller Design[OL].[24 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4640459


	6. High Frequency ZVZCS Resonant Inverter for High-Power HPS Lamps
	Yifeng Wang,Yun Zhang
	Dynamic and Electronic Engineering 06 January 2015
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:For the low-voltage and high-current output requirements of high-power and high-pressure sodium lamps (HPS), the paper presents a CLCL resonant inverter, to achieve zero-voltage and zero-current switching (ZVZCS) and sine wave output through resonance. The working principle for the new circuit was presented, based on achieving the soft switching conditions for the inverter switches. Then an optimization design method was investigated in this paper, which made the minimum voltage stress on the resonant components in ZVZCS condition. The theoretical and simulation results of the newly designed circuit show that all the switches work in the ZVZCS state. Besides, we got a sine waveform current output, which efficiently reduced the crest factor of the current and extended the life of the lamp. To examine the correctness of the proposed method, finally, we designed a DC-AC resonant inverter with 400V input, 100V/10A output, and 260 kHz switching frequency. The experimental result sustained the proposed configuration and the full load efficiency of the inverter can achieve 99.1%
	TO cite this article:Yifeng Wang,Yun Zhang. High Frequency ZVZCS Resonant Inverter for High-Power HPS Lamps[OL].[ 6 January 2015] http://en.paper.edu.cn/en_releasepaper/content/4626699


	7. The effect of ignition delay period on heat release of hydraulic free piston engine
	ZHANG Shuanlu,ZHAO Changlu,ZHAO Zhenfeng
	Dynamic and Electronic Engineering 19 December 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The special characteristic of hydraulic free piston diesel engine decides its differences in the aspects of piston displacement, velocity, and acceleration etc. These differences lead to more complex fluid flow, and particular intrinsic energy distribution in-cylinder. All these factors results in the differences of heat release. This article shows the heat release rate difference between the start cycles and the stable cycles and deems that the difference is related with the ignition delay period. From the expression equation of ignition delay period, the reason is ascribed to the boundary temperature. Based on selection of several cycles, we study the maximum value of heat release rate and pressure in-cylinder and it is obvious that the ignition delay period affects the heat release rate, pressure and BDC position. Finally, the corresponding optimum proposals for decreasing the difference are also represented.
	TO cite this article:ZHANG Shuanlu,ZHAO Changlu,ZHAO Zhenfeng. The effect of ignition delay period on heat release of hydraulic free piston engine[OL].[19 December 2014] http://en.paper.edu.cn/en_releasepaper/content/4624354


	8. Finite Element Analysis of the MICE Coupling Coil during the Pretension Winding Process
	XU Fengyu,CHEN Anbin
	Dynamic and Electronic Engineering 26 September 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Totally five finite element (FE) models are presented, they are used to analyze the stress and strain within the first MICE coupling coils during the pretension winding process. The FE models are built based on the principle of nested thin wall cylinder, and advanced FE technologies such as the "birth and death" and the contact. By comparing the computation results of the first three models, the deformation at the bobbin flanges for the first MICE coupling coil does not be predicted by the original FE model. Moreover, the limitation of the "birth and death" technology is revealed when it is applied to stress analysis for the pretension winding process. Because of its limitation, by mean of "birth and death" technology can only draw an approximate result. In order for the numerical simulation is as closely as possible to the real winding process, it is necessary to minimize the radial displacement. As the result, a new FE model is established, where roles of the coil bobbin support and coil fabrication process is taken into account. The process includes winding coil, welding cover plate, and removing bobbin support. In addition, the bobbin support is modified to satisfy the application condition for the "birth and death" element. By exploring the improved method, the computation results predict the actual stess and strain status of the finished superconducting coil more accurately.
	TO cite this article:XU Fengyu,CHEN Anbin. Finite Element Analysis of the MICE Coupling Coil during the Pretension Winding Process[OL].[26 September 2014] http://en.paper.edu.cn/en_releasepaper/content/4611044


	9. Design of Wide-area Damping Controller Considering the Changes of Operating Point
	SUO Jianglei,HU Zhijian
	Dynamic and Electronic Engineering 26 September 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:With regard to the uncertainty of wind power and negative effects to the area-damping of system caused by long-distance transmission of large-scale wind power under high permeability, a design method of wide-area controller is put forward which is applicable to a great change in the operation modes of power system such as a dramatic change of wind speed in wind farms. A model of power system is established using time-delay linear parameters change method and the nonlinear problem is described by the clever use of linear equation. Then the whole parameter change range is meshed and the controllers are designed respectively. Finally the scheduling criteria is formulated by a triangle membership function and the controller weights is also assigned so as to construct a wide-area gain-scheduling controller which can cover the full range of parameter change. The time domain simulation of a test system shows that the proposed method has an ideal effect even a great change has occurred to the operation modes and has stronger robustness compared with the traditional pole assignment method.
	TO cite this article:SUO Jianglei,HU Zhijian. Design of Wide-area Damping Controller Considering the Changes of Operating Point[OL].[26 September 2014] http://en.paper.edu.cn/en_releasepaper/content/4611414


	10. Dynamic Cosimulation of Switched Reluctance Starter/Generator System Using Field-Circuit Coupling
	DING Wen,LIU Yunpeng,HU Yanfang
	Dynamic and Electronic Engineering 02 January 2014
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The switched reluctance machine (SRM) has attracted a great deal of interest in the development of integrated starter/generator (ISG) for aircraft or electric vehicle engines and power systems due to the low cost and high reliability. This paper presents a dynamic cosimulation approach for switched reluctance starter/genenrator (SRS/G) system assisted by Maxwell SPICE and Simplorer. The non-linear magnetization characteristics of flux linkage and torque of the machine have been considered and computed by finite element analysis (FEA). From the FEA static results, a dynamic equivalent mgnetic circuit model of SRS/G is introduced into Simplorer using Maxwell SPICE rules which is considered the indirect field-circuit coupling. The control strategies for the SRS/G operating in the mo-toring and generating states are presented. The simulation and experimental results for a 6/4 SRS/G system are also presented and compared to demonstrate the validity of the simulation method.
	TO cite this article:DING Wen,LIU Yunpeng,HU Yanfang. Dynamic Cosimulation of Switched Reluctance Starter/Generator System Using Field-Circuit Coupling[OL].[ 2 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4580046

	Check out RSS, or use RSS reader to subscribe this item