Thermal insulation

Xem 1-7 trên 7 kết quả Thermal insulation
  • This book has been written to present elementary practical and efficient applications in saving energy concept, as well as propose a solitary action for this category of topics. The book aims to illustrate various methods in treatment the concept of thermal insulation such as processes and the attempt to build an efficient passive building model.

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  • The house has a cement block, crawl space foundation. The vented volume of the crawl space is about 115 m3 . The under-floor belly volume defined by the floor joists and the metal frame is approximately 65 m3 . The belly space contains the heating and cooling (HAC) supply air distribution ductwork, plumbing lines and thermal insulation and is separated from the crawl space by an insulated, woven polyethylene membrane. The attic space has a volume of 43 m3 above the vaulted ceiling. There are five roof vents and a series of eave vents extending along the...

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  • This book is mainly intended for designers and users of magnetic components in power electronics. It can also be used for didactical purposes. Magnetic components such as inductors and transformers constitute together with the control and the semiconductor components, the main parts in the design of power electronic converters. Some experience teaches that the design of the magnetic parts is still often done by trial and error. This can be explained by a (too) long working-in time for designing inductors and transformers.

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  • Revised to cover the latest innovations and trends, the newest edition of this classic work provides detailed coverage of every component of effective energy management. It includes expert information on, boilers, steam systems, cogeneration, waste-heat recovery, HVAC systems, control systems, systems maintenance, industrial insulation, indoor air quality, thermal energy storage, and codes and standards.

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  • Semiconductor Thermometers Classification of Semiconductor Thermometers Semiconductor thermometers (Sachse, 1975) are made from materials which are neither conductors nor insulators. Research of the thermal properties of semiconductors was first reported by William Faraday in 1834. Their industrial production was started at the Bell Telephone Company and, simultaneously, at Osram in 1930. It is apparent from the work of many authors such as Sze (1969) and van der Ziel (1968), among others, that these materials may have an intrinsic, or pure form, a compound form or a doped form.

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  • The skin is the largest organ of the body and its main function is to protect the organism against undesirable effects of the environment. The skin is composed of three different layers: epidermis, dermis and hypodermis. The epidermis contains the stratum corneum, the uppermost layer of the epidermis, that acts as the barrier function of the skin due to its very high density and its low hydration. The dermis is an extensive vascular network providing skin nutrition, repair, thermal regulation and immune response.

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  • ELECTRICAL Contact Resistance: 0.020 Ohm maximum (initial) 0.020 Ohm maximum (after life cycling) 0.10 Ohm maximum (after salt spray) Insulation Resistance: 10,000 megohms minimum (initial) 1,000 megohms minimum (after moisture resistance test) Dielectric Withstanding: Voltage: 500 Vac Contact Rating: Maximum: 100 mA + 130 Vdc; Minimum: -40 dBm MECHANICAL Mechanical Shock: Per MIL-STD-202F, Method 213B, test condition H Vibration: MIL-STD-1344, Method 2005, test condition I Insertion Force: 7 lbs. (3.17 kg) maximum Withdrawal Force: 1.5 lbs. (.

    pdf72p halanh 14-08-2009 31 2   Download

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