scholarly journals Numerical investigation on the usage of finned surface in lithium nickel manganese cobalt oxides batteries by using air cooling method

2020 ◽  
Author(s):  
Ali Celen ◽  
Orhan Kalkan
Keyword(s):  
Numerical Investigation ◽  
Cobalt Oxides ◽  
Air Cooling ◽  
Cooling Method ◽  
Finned Surface ◽  
Nickel Manganese

Recent Advancement on Liquid Metal Cooling for Thermal Management of Computer Chip

2010 ◽  
Author(s):  
Jing Liu ◽  
Yue-Guang Deng ◽  
Zhong-Shan Deng
Keyword(s):  
Liquid Metal ◽  
Thermal Management ◽  
New Technology ◽  
Air Cooling ◽  
Liquid Metal Coolant ◽  
Cooling Device ◽  
Chip Cooling ◽  
Cooling Method ◽  
Liquid Metal Cooling ◽  
Metal Coolant

Efficient cooling of a high performance computer chip has been an extremely important however becoming more and more tough issue. The recently invented liquid metal cooling method is expected to pave the way for high flux heat dissipation which is hard to tackle otherwise by many existing conventional cooling strategies. However, as a new thermal management method, its application also raised quite a few challenging fundamental and practical issues for solving. To illustrate the development of the new technology, this talk is dedicated to present an overview on the latest advancements made in the author’s lab in developing the new generation chip cooling device based on the liquid metal coolant with melting point around room temperature. The designing and optimization of the cooling device and component will be discussed. Several major barriers to prevent the new method from practical application such as erosion between liquid metal coolant and its substrate material will be outlined with good solutions clarified. Performance comparison between the new chip cooling method with commercially available products with highest quality such as air cooling, water cooling and heat pipe cooling devices were evaluated. Typical examples of using liquid metal cooling for the thermal management of a real PC or even super computer will be demonstrated. Further, miniaturizations on the prototype device by extending it as a MEMS cooling device or mini/micro channel liquid metal cooling device will also be explained. Along with the development of the hardware, some fundamental heat transfer issues in characterizing the liquid metal cooling device will be discussed through numerical or analytical model. Future challenging issues in pushing the new technology into large scale practices will be raised. From all the outputs obtained so far, it can be clearly seen that the new cooling strategy will find very promising and significant applications in a wide variety of engineering situations whenever thermal managements or heat transport are needed.

Thermal design of the vertical machining centre headstock by the forced cooling method

2011 ◽  
Vol 226 (3) ◽  
pp. 738-751 ◽  
Author(s):  
S Jiang ◽  
X Min
Keyword(s):  
Cooling System ◽  
Structural Parameters ◽  
Thermal Design ◽  
Air Cooling ◽  
Thermal Drift ◽  
Cooling Method ◽  
Spindle Axis ◽  
Forced Air ◽  
Dip Angle ◽  
Forced Cooling

The headstock thermal drift is a major source of the machining error for a vertical machining centre. However, the research so far reported has been unable to provide a satisfactory method to eliminate the spindle axis dip angle resulting from the thermal drift. In this article, a thermal design is carried out for the vertical machining centre headstock by introducing a dual cooling system, utilizing forced water cooling subsystem and a forced air cooling one. An integrated thermal model of the vertical machining centre headstock has been established by aid of the finite element method, and the appropriate structural parameters of the dual cooling system have been analysed. The theoretical results were verified by an experiment in which the perpendicularity between worktable surface and the spindle axis resulting from the thermal displacement is measured. The results indicate that the thermal behaviour of the vertical machining centre headstock can be improved using the dual cooling method.

scholarly journals The Quality of Horsemeat and Selected Methods of Improving the Properties of This Raw Material

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1672
Author(s):  
Renata Stanisławczyk ◽  
Mariusz Rudy ◽  
Stanisław Rudy
Keyword(s):  
Point Of View ◽  
Raw Material ◽  
Muscle Fibres ◽  
Air Cooling ◽  
High Carbohydrate ◽  
Cooling Method ◽  
Brown Colour ◽  
Sweetish Taste ◽  
Quality Features

Horsemeat has a strictly defined group of consumers whose demand varies depending on the country or region. There is no tradition of consuming horsemeat in Poland. From a technological point of view, this raw material is as good as other types of meat. In the opinion of the consumer, compared to other species of animals, horsemeat is characterized by an intense red-brown colour and greater cohesiveness resulting from the type of muscle fibres. This meat has a sweetish taste due to the high carbohydrate content. The management of horsemeat often involves the use of modern freezing methods. Freezing horsemeat with the use of liquefied carbon dioxide is a method that increases its suitability for consumption as well as for export purposes in comparison with the traditional air-cooling method. To eliminate the unfavourable quality features of horsemeat, there are substances used to improve the functional and sensory properties of this meat. This paper discusses the research and development work carried out in the field of horsemeat quality and selected methods contributing to its improvement.

scholarly journals Successful Production of Piglets Derived from Expanded Blastocysts Vitrified Using a Micro Volume Air Cooling Method without Direct Exposure to Liquid Nitrogen

2013 ◽  
Vol 59 (6) ◽  
pp. 520-524 ◽  
Author(s):  
Koji MISUMI ◽  
Yuri HIRAYAMA ◽  
Sachiko EGAWA ◽  
Shoko YAMASHITA ◽  
Hiroyoshi HOSHI ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Air Cooling ◽  
Cooling Method ◽  
Direct Exposure ◽  
Successful Production
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