ENERGY SAVING FACT SHEET Introduction Central building cooling options include water chillers and direct-expansion (DX) A/C units. Chillers use a refrigeration cycle to cool water to 42º F to 55º F for pumping to chilled water cooling coils. Air is then blown over the chilled water cooling coils to provide cool air to the conditioned space. DX systems also use a refrigeration cycle‚ but distribute refrigerant directly to DX cooling coils – some are packaged in a single housing‚ others are split
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consumption for a building in terms of heating and cooling requirements. In the introduction an overview of major energy policies is given as well as a foundation for residential energy efficiency improvements and a description of the key components in other eco-cities. A baseline and two scenarios with different energy performance were created in the modeling software DesignBuilder to calculate the energy consumption for heating and cooling. It resulted in three levels of energy consumption were
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PRL 106‚ 081101 (2011) Selected for a Viewpoint in Physics PHYSICAL REVIEW LETTERS week ending 25 FEBRUARY 2011 Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter Dany Page‚1 Madappa Prakash‚2 James M. Lattimer‚3 and Andrew W. Steiner4 ´ ´ ´ Instituto de Astronomıa‚ Universidad Nacional Autonoma de Mexico‚ Mexico D.F. 04510‚ Mexico 2 Department of Physics and Astronomy‚ Ohio University‚ Athens‚ Ohio 45701-2979‚ USA 3 Department of Physics and Astronomy
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Renewable and Sustainable Energy Reviews 5 (2001) 343–372 www.elsevier.com/locate/rser A review of absorption refrigeration technologies Pongsid Srikhirin *‚ Satha Aphornratana‚ Supachart Chungpaibulpatana Mechanical Engineering Program‚ Sirindhorn International Institute of Technology‚ Thammasat University‚ PO Box 22 Thammasat Rangsit Post Office‚ Patumthani 12121‚ Thailand Received 11 January 2001; accepted 12 February 2001 Abstract This paper provides a literature review on absorption refrigeration
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References: California Energy Comission (2002). How Things Work: How does an Air Conditioner Work?. Retrieved July 1‚ 2014 from http://www.energyquest.ca.gov./how_it_works/air_conditioner.html. Janssen‚ C. (2009). Air Cooling. Retrieved July 1‚ 2014 from www.investopedia.com/air_cooling/ Cameron (2009) Ehensel (2014). Homemade Air Conditioner. Retrieved from July 1‚ 2014 from http://www.instructables.com/id/Homemade-air-conditioner/ Estrabo‚ E Webster‚ M. (1977). Webster
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Energy Efficient Buildings Internal Heat Gains and Design Heating & Cooling Loads Internal Heat Gains People and electrical equipment in buildings give off heat. These internal heat gains must be included in energy balances on the building or zone to determine the net heating or cooling load. Heat Gain From People Typical sensible‚ latent and total heat rates given off by people are shown in the table below (ASHRAE Fundamentals‚ 2005). The sensible heat gain results from radiation and
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Synopsis Major data centers need a large amount of energy to power and maintain. There are two costs components of energy at a data center: Cooling and running computers. The EPA estimated that data centers in the United States used about 12 gig watts of power‚ which is equal to the output of twenty-five major power plants in 2011. By 2020‚ in estimation‚ the world’s computer servers will either match or exceed the carbon emissions of the airline industry. Case Study Questions 1. PUE stands
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NATIONAL ELECTRICITY FORECASTING REPORT For the National Electricity Market (NEM) 2012 NATIONAL ELECTRICITY FORECASTING REPORT Disclaimer This document is subject to an important disclaimer that limits or excludes AEMO’s liability. Please read the full disclaimer on page D1. Published by AEMO Australian Energy Market Operator ABN 94 072 010 327 Copyright © 2012 AEMO ii © AEMO 2012 FOREWORD This is the first edition of AEMO’s National Electricity Forecasting Report (NEFR)
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SYNOPSIS FOR DISSERTATION: STAGE 1 STUDY AND ANALYSIS OF FREQUENCY AND PROCEDURES FOR MAINTENANCE OF MECHANICAL SYSTEMS INSTALLED IN A TOWNSHIP. NAME OF CANDIDATE: HARSHAL KAVDIKAR NAME OF GUIDE: PROFESSOR D.S.PATIL M. ARCH (CONSTRUCTION MANAGEMENT) Y.C.M.O.U. study centre: b.n.c.a.pune. INDEX * INTRODUCTION * objective of the study * scope of work * methodology * literature survey * method for data collection * research planning introduction
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reduce temperature of inlet air. Several different inlet cooling methods are currently employed in various systems. The techniques of reheating‚ regenerating‚ inter cooling require installation of additional heavy machinery which is not economically feasible. Apart from these power augmentation techniques‚ which could be applied to existing gas turbines‚ can be divided into two main categories. The first category includes inlet air cooling technique and the second involves techniques based on injection
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