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An Evaluation Of Thermoelectric Cooling As Applied To Engine Control Electronics
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Book Synopsis An Evaluation of Thermoelectric Cooling as Applied to Engine Control Electronics by : C. S. Longstreet
Download or read book An Evaluation of Thermoelectric Cooling as Applied to Engine Control Electronics written by C. S. Longstreet and published by . This book was released on 1977 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic elements of the engine control systems of future military aircraft will require protection against the high ambient temperatures expected at their mounting locations on the engines. The thermally conditioned module built and tested in this program was designed to provide this protection, with substantial margins; ambient temperatures to 750 F and fuel (coolant) temperatures to 300 F were employed. The unit employs thermal shields to minimize heat conducted to the electronics. The electronics themselves were cooled by a thermoelectric cooler. High efficiency heat exchangers were designed for this unit. The unit weighed 1.45 lbs. Under worst case operating conditions, it pumped approximately 1300 BTU/hour to the fuel. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1992 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1992 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Book Synopsis Electrical and Electronic Devices, Circuits, and Materials by : Suman Lata Tripathi
Download or read book Electrical and Electronic Devices, Circuits, and Materials written by Suman Lata Tripathi and published by John Wiley & Sons. This book was released on 2021-03-24 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for electronic devices for private and industrial purposes lead designers and researchers to explore new electronic devices and circuits that can perform several tasks efficiently with low IC area and low power consumption. In addition, the increasing demand for portable devices intensifies the call from industry to design sensor elements, an efficient storage cell, and large capacity memory elements. Several industry-related issues have also forced a redesign of basic electronic components for certain specific applications. The researchers, designers, and students working in the area of electronic devices, circuits, and materials sometimesneed standard examples with certain specifications. This breakthrough work presents this knowledge of standard electronic device and circuit design analysis, including advanced technologies and materials. This outstanding new volume presents the basic concepts and fundamentals behind devices, circuits, and systems. It is a valuable reference for the veteran engineer and a learning tool for the student, the practicing engineer, or an engineer from another field crossing over into electrical engineering. It is a must-have for any library.
Book Synopsis Optimized Thermoelectric Cooling Strategies for High Performance Electronics by : Ali-Reza Asarizadeh
Download or read book Optimized Thermoelectric Cooling Strategies for High Performance Electronics written by Ali-Reza Asarizadeh and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermoelectric components (TECs) and other electronic cooling components such as micro-heat sinks have been shown to provide effective cooling for integrated circuits (ICs). A review of available literature has shown effective temperature control using these components separately, and to a lesser extent, using configurations containing multiple approaches for cooling to sub-ambient levels. However, little data are available for sizing thermal management packages focusing on shrinking the device footprint. This suggests that more experimental data of multi-component cooling strategies are needed to leverage the advantages and demonstrate superior cooling performance on a smaller scale. In some electronics devices, such as spectrometers or photodetectors, the quality of spectral data obtained is adversely affected by increases in device temperature. Physically speaking, this is due to the fact that, at higher temperatures, the charged particles are stimulated and released from the boundary region, a process known as thermionic emission. Reducing the local temperature will help minimize the effects of heat generation and the overall noise associated with this heat buildup. The thesis sets out to assess the feasibility and practicality of implementing a TEC-based thermal management system for use in electronic packaging and in particular, for spectrometers in the nanophotonics industry. A heat sink and fan were used as auxiliary components to aid the heat dissipation process. The key areas that needed to be addressed include surface temperature stability, sub-ambient cooling capability, and scale down potential of the overall device. Cooling of surfaces down to at least -10°C (from ambient) was conducted using several heat sink and thermoelectric device configurations. Temperature stability was demonstrated through low temperature fluctuations (0.2°C/h surface warm up rate) for a 5 hour timeframe. Preliminary results demonstrate a 78% reduction of heat sink size down to 57 cm3 (surface area 172 cm2) while maintaining a -10°C surface temperature. Maximum surface cooling down to -22.4°C was achieved using 254 cm3 heat sink volume (surface area 1443 cm2). The results also show a strong correlation between available heat sink surface area and cooling performance. Continuing improvements such as introducing a phase change liquid and further size reductions to key components (fans, TEC, heat sinks, etc.) can potentially help scale down the thermal management system even more.
Book Synopsis Introduction to Thermoelectricity by : H. Julian Goldsmid
Download or read book Introduction to Thermoelectricity written by H. Julian Goldsmid and published by Springer Science & Business Media. This book was released on 2009-10-03 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Thermoelectricity is the latest work by Professor Julian Goldsmid drawing on his 55 years experience in the field. The theory of the thermoelectric and related phenomena is presented in sufficient detail to enable researchers to understand their observations and develop improved thermoelectric materials. The methods for the selection of materials and their improvement are discussed. Thermoelectric materials for use in refrigeration and electrical generation are reviewed. Experimental techniques for the measurement of properties and for the production of thermoelements are described. Special emphasis is placed on nanotechnology which promises to yield great improvements in the efficiency of thermoelectric devices. Chapters are also devoted to transverse thermoelectric effects and thermionic energy conversion, both techniques offering the promise of important applications in the future.
Book Synopsis Radioisotope Power Systems by : National Research Council
Download or read book Radioisotope Power Systems written by National Research Council and published by National Academies Press. This book was released on 2009-08-14 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.
Author :United States. National Aeronautics and Space Administration. Office of Reliability and Quality Assurance Publisher : ISBN 13 : Total Pages :602 pages Book Rating :4.F/5 ( download)
Book Synopsis Reliability Abstracts and Technical Reviews by : United States. National Aeronautics and Space Administration. Office of Reliability and Quality Assurance
Download or read book Reliability Abstracts and Technical Reviews written by United States. National Aeronautics and Space Administration. Office of Reliability and Quality Assurance and published by . This book was released on 1968 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Infrared Technology and Applications by :
Download or read book Infrared Technology and Applications written by and published by . This book was released on 2003 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of the 21st Century Truck Partnership by : National Research Council
Download or read book Review of the 21st Century Truck Partnership written by National Research Council and published by National Academies Press. This book was released on 2008-10-19 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 21st Century Truck Partnership (21CTP), a cooperative research and development partnership formed by four federal agencies with 15 industrial partners, was launched in the year 2000 with high hopes that it would dramatically advance the technologies used in trucks and buses, yielding a cleaner, safer, more efficient generation of vehicles. Review of the 21st Century Truck Partnership critically examines and comments on the overall adequacy and balance of the 21CTP. The book reviews how well the program has accomplished its goals, evaluates progress in the program, and makes recommendations to improve the likelihood of the Partnership meeting its goals. Key recommendations of the book include that the 21CTP should be continued, but the future program should be revised and better balanced. A clearer goal setting strategy should be developed, and the goals should be clearly stated in measurable engineering terms and reviewed periodically so as to be based on the available funds.
Download or read book Interavia written by and published by . This book was released on 1980 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1979 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Energy written by Yatish T. Shah and published by CRC Press. This book was released on 2018-01-12 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book details sources of thermal energy, methods of capture, and applications. It describes the basics of thermal energy, including measuring thermal energy, laws of thermodynamics that govern its use and transformation, modes of thermal energy, conventional processes, devices and materials, and the methods by which it is transferred. It covers 8 sources of thermal energy: combustion, fusion (solar) fission (nuclear), geothermal, microwave, plasma, waste heat, and thermal energy storage. In each case, the methods of production and capture and its uses are described in detail. It also discusses novel processes and devices used to improve transfer and transformation processes.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Grid Integration of Solar Photovoltaic Systems by : Majid Jamil
Download or read book Grid Integration of Solar Photovoltaic Systems written by Majid Jamil and published by CRC Press. This book was released on 2017-11-22 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the various aspects of solar photovoltaic systems including measurement of solar irradiance, solar photovoltaic modules, arrays with MATLAB implementation, recent MPPT techniques, latest literature of converter design (with MATLAB Simulink models), energy storage for PV applications, balance of systems, grid integration of PV systems, PV system protection, economics of grid connected PV system and system yield performance using PV system. Challenges, issues and solutions related to grid integration of solar photovoltaic systems are also be dealt with.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
