Improvised Eco- Friendly Evaporative Air Cooler An Investigatory Project To Division Science and Technology Fair September 22‚ 2012 Prepared by: Jay Warren S. Cabrera Judy Ann D. Fajiculay Queenie Ann S. Gutierrez September 2012 San Isidro National High School Lipa City Acknowledgement We would like to extend our profound gratitude to the following who helped us make this investigatory project possible. To our beloved principal‚ Mrs. Evangeline B. Escabel for believing
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Electrical Equipment/ Refrigeration & AC Refrigeration & AC Refrigeration & Air Conditioning 1 Training Agenda: Refrigeration & Air Conditioning Refrigeration & AC Introduction Type of refrigeration Assessment of refrigeration and AC Energy efficiency opportunities 2 Introduction Refrigeration & AC How does it work? High Temperature Reservoir Heat Rejected R Work Input Heat Absorbed Low Temperature Reservoir 3 Introduction How does it work? Refrigeration & AC Thermal energy moves
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The article‚ "Calculating the optimum temperature for serving hot beverages" (2007) by Fredericka Brown and Kenneth R. Diller focuses on the science behind the optimum serving temperature of hot beverages. The purpose of the article is to persuade hot beverage vendors to reduce the serving temperature of hot beverages in order to "reduce the scald burn hazard and improving customer satisfaction" [1]. This analysis is to underline how the authors made their article simple to comprehend by utilizing
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China news agency in Beijing on August 5th (Xinhua LiuChen Yao)‚ the national meteorological center 5th 18:00 continue to issue when high temperature orange alert‚ at this point‚ most parts of China have been burning in the high temperature "orange" 12 days. Temperatures are expected to south 6th will also be "fuel". Meteorological monitoring‚ according to 5th‚ 15:00‚ Fenghua‚ Zhejiang‚ Yuyao‚ Cixi; Jiangxi Yongxin. Gupu in Sichuan and other places more than 41 ℃ temperature. Sichuan XuYong
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THEORETICAL STUDY ON MICROWAVE ASSISTED BONDING OF POLYMER BASED MICROFLUIDIC DEVICES By KASI BALAMURUGAN MANI A thesis submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING WASHINGTON STATE UNIVERSITY School of Mechanical and Materials Engineering May 2013 To the Faculty of Washington State University: The members of the Committee appointed to examine the thesis of KASI BALAMURUGAN MANI‚ find it satisfactory and recommend that it
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#1 transmission lines are specialized cables and other media designed to carry alternating current and electromagnetic waves of high frequency (radio frequency or higher)‚ high enough that its wave nature must be taken into account. #3 Solid dielectric cable has become the national standard for underground electric transmission lines less than 200 kV. There is less maintenance with the solid cable‚ but impending insulation failures are much more difficult to monitor and detect. #7 Near end
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This structural transformation gradually reduces the dielectric behavior of the Barium strontium titanate at nano scale. It was observed that Capacitance drastically reduced from 20.47 pF to 3.06 pF. Keywords: Sr-doped Barium Titanate powders‚ Structural ordering disordering‚ Phase transformation‚ heating‚ Particle size‚ Dielectric properties 1. INTRODUCTION Since Barium Titanate has a wide range of applications as ceramic capacitors‚ it
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conventional ferroelectric to relaxor ferroelectric behavior occurs when increasing the (Bi‚ Sc) content between 5% and 10%. Implications in the design of novel lead-free piezoelectric materials are discussed. Keywords: powders-solid state reaction‚ dielectric properties‚ ferroelectric properties‚ piezoelectric properties‚ perovskites. 2 1 Introduction Environmental pollution is one of the main causes of concern nowadays‚ which has led to harsh environmental regulations being taken. In the case
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type of capacitor‚ which makes use of the insulating plastic film in the form of a dielectric. These conductors are formed by the drawing of the dielectric films into thin layers‚ which are then wounded into a cylindrical winding. Exhibiting self-heating properties‚ film capacitors can be modified and transformed into different shapes and sizes. Dielectric capacitors‚ as the name suggests consist of two dielectrics wherein the capacitance is varied at regular intervals in order to gain the desired
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by N.R. Maleady The article is about the role of chemical engineer in manufacturing transformers in the electrical manufacturing sector. The important components of the transformer are copper wire‚ cellulosic insulation‚ insulating varnish and dielectric liquid. Wire enamel or resin is the insulting structure for copper wire. The resin can either applied as a solution or in solventless form. Mechanical arrangement and proper temperature between each dip are needed to be controlled to provide necessary
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