Xem 1-20 trên 98 kết quả Cooling system
  • The inspiration for Building Systems for Interior Designers came when I tried to teach interior design students about all the ways buildings support our activities and physical needs—without an adequate textbook. I needed an approach that supported the special concerns of the interior designer, while connecting those issues to the work of the rest of the building design team.

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  • his book is served as a reference text to meet the needs of advanced scientists and research engineers who seek for their own computational fluid dynamics (CFD) skills to solve a variety of fluid flow problems. Key Features: - Flow Modeling in Sedimentation Tank, - Greenhouse Environment, - Hypersonic Aerodynamics, - Cooling Systems Design, - Photochemical Reaction Engineering, - Atmospheric Reentry Problem, - Fluid-Structure Interaction (FSI), - Atomization, - Hydraulic Component Design, - Air Conditioning System, - Industrial Applications of CFD...

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  • International Journal of Mechanical Sciences 48 (2006) 430–439 www.elsevier.com/locate/ijmecsci A systematic computer-aided approach to cooling system optimal design in plastic injection molding H.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Efficacy of and tolerance to mild induced hypothermia after out-of-hospital cardiac arrest using an endovascular cooling system...

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  • Cooling System

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  • All solutions to engineering problems start with a calculation or estimation of the duty which must be met (i.e., quantifying the problem). The purpose of heating and cooling load calculations, then, is to quantify the heating and/or cooling loads in the space(s) to be conditioned. Rough estimates of load may be made during the concept design phase.

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  • All air-handling units (AHUs) and many terminal units, if they are not self-contained, require a source of heating and/or cooling energy. This source is called a central plant, and the means by which thermal energy is transferred between the central plant and the AHU is usually a fluid conveyed through a piping system. The fluids used in HVAC practice are steam, hot or cold water, brine, refrigerant, or a combination of these. The equipment used to generate the thermal energy is described in Chap. 7. In this chapter we discuss the transport systems. ...

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  • By definition, air conditioning involves control of the air temperature, humidity, cleanliness, and distribution. It follows that an air-handling unit (AHU) of some kind is an essential part of an air conditioning system, though not necessarily of a heating-only system. The function of the AHU is to provide air at a quantity, temperature, and humidity to offset the sensible and latent heat gains to the space (in the cooling mode) and the heat losses (in the heating mode), while maintaining the required temperature and humidity in the space....

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  • The design and construction of central plants for heating and cooling is one of the most challenging and interesting aspects of the HVAC design profession. Central plants range in size from small to very large, from residential to industrial utility scale. There are many areas of individual expertise and many levels of competence among designers.

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  • Heating is the first word in the acronym HVAC. It is the most important part because without heating mankind would have difficulty in surviving. Proper design of the heating system is even more critical than that of ventilation or cooling. Human history began to develop with the discovery and control of fire which increased people’s ability to survive in a harsh environment.overy and control of fire

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  • ... blows down based on conductivity, and makeup proportional systems ... pump is activated based on addition of a set amount of makeup to the cooling ... makeup ...

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  • Bạn muốn chụp macro bằng đèn flash? Chiếc đèn gắn sẵn trên máy không giúp gì được bạn trong trường hợp này vì với cự ly quá gần nó sẽ làm "cháy" ảnh của bạn. Tuy nhiên bạn có thể mua thêm đèn flash chuyên dùng cho macro như chiếc Cool Light của Nikon dùng cho các máy dCam. Với các máy dCam có thể gắn thêm đèn flash bên ngoài thì bạn đừng bao giờ dùng flash trực tiếp mà nên phả đèn vào một tấm phản xạ. Kỹ thuật chụp macro bằng flash NTL sẽ nói trong một bài...

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  • The Trane indoor make-up air handler product line is a packaged air, heating and cooling system, suitable for heating, cooling, ventilating and make-up air applications. These units are designed for indoor use only. Unit sizes range from 900 to 9,800 cfm (0.4-4.6 cu m/s) with 1/2 to 15 hp motor capabilities. These units are available with inputs from 100,000 Btu/h to 1,200,000 Btu/h (29.3 to 351.4 kW). Duct furnaces are AGA and CGA certified for safety and performance with a range of 100,000 Btu/h input to 400,000 Btu/h (29.3 to 117.1 kW) input per duct furnace.

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  • Cooling means the removal of heat. In HVAC, a cooling process is usually identified as one which lowers the temperature or humidity (or both) of the ambient air. The effective temperature includes not only the temperature and humidity of the ambient air but also radiant effects and air movement. Some adiabatic cooling processes, i.e., evaporative cooling, do not actually remove any heat, but create a sensation of cooling by lowering the sensible temperature of the air.

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  • This book explains the theory, components, and practical applications of systems in turboprop, turojet, and turbofan aircraft. The author clearly examines electrical, turbine engine, lubrication and coooling , and other systems.

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  • Installation of new system. When no existing system is present, the designer must select the system that is most appropriate for the end user. High temperature hot water and steam/condensate systems are the most common types of distribution systems currently used on military installations. However, a new system should only use the temperatures and pressures necessary to meet the requirements…

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  • Network Security Testing – Activities that provide information about the integrity of an organization's networks and associated systems through testing and verification of network-related security controls on a regular basis. “Security Testing” or “Testing” is used throughout this document to refer to Network Security Testing. The testing activities can include any of the types of tests described in Chapter 3, including network mapping, vulnerability scanning, password cracking, penentration testing, war dialing, war driving, file integrity checking, and virus scanning.

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  • Some reciprocating open-type compressors used with water cooled systems incorporate a cylinder head cooling feature in the form of a water circuit through the compressor head. Supply water enters this before entering the condenser (see Figure 16). A rapid indicating thermometer is recommended for taking water temper- atures because the water regulating valve responds to the operating head pressure and will vary the temperature of the water as it modulates. It is also necessary, when adjusting the water regulator, to be able to take inlet and outlet temperatures quickly.

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  • Using chilled water to cool a building or process is efficient and flexible. A two-inch Schedule 40 pipe of chilled water can supply as much comfort cooling as 42" diameter round air duct. The use of chillers allows the design engineer to produce chilled water in a central building location or even on the roof and distribute the water economically and without the use of large duct shafts.

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  • Spirax Sarco recirculating feedwater spray systems type RFS are designed to provide additional flash steam condensing capacity on boiler feedtank applications. When the condensate return flowrate is high and the cold make-up flowrate is intermittent it is likely that valuable flash steam will be lost through the vent. To ensure that this flash steam is condensed it is often worthwhile to take feedwater from a relatively cool part of the feedtank and pump it to a spray nozzle.

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