Abstract The phenomenon of evaporative cooling is a common process in nature‚ whose applications for cooling air are being used since the ancient years. In fact‚ it meets this objective with a low energy consumption‚ being compared to the primary energy consumption of other alternatives for cooling‚ as it is simply based in the phenomenon of reducing the air temperature by evaporating water on it. This process can be an interesting alternative to conventional systems in these applications where
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Humidity & Relative Humidity Humidity is defined as the amount of moisture in the air. Air contains a certain amount of water vapor. The amount of water vapor any mass of air can contain depends on the temperature of that air. The warmer the air is‚ the more water it can hold. A low relative humidity means that the air is dry and could hold a lot more moisture at that temperature. For example‚ at 20 degrees C (68 degrees F)‚ a cubic meter of air can hold a maximum of 18 grams of water. At
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Optimization of Room Air Conditioning with Desiccant Wheel 1. Introduction Desiccant air conditioning technology is an emerging alternative air conditioning technology having many advantages over conventional VAC system. Desiccant cooling technology is free from CFCs‚ can be operated with low grade energy (heat energy) and capable of precise control of latent heat load of conditioned space. This eco friendly and energy saving method of air conditioning has drawn interest of many researchers over
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Bacteria are often maligned as the causes of human and animal disease (like this one‚ Leptospira‚ which causes serious disease in livestock). However‚ certain bacteria‚ the actinomycetes‚ produce antibiotics such as streptomycin and nocardicin; others live symbiotically in the guts of animals (including humans) or elsewhere in their bodies‚ or on the roots of certain plants‚ converting nitrogen into a usable form. Bacteria put the tang in yogurt and the sour in sourdough bread; bacteria help to break
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Air Conditioning and Heat Pump Systems Clinton Ward COM155 February 17‚ 2013 Joyce Keeling Air Conditioning and Heat Pump Systems Air conditioners and heat pump systems are used by most people in the world today. They are used to cool in the summer time and to heat in the winter time. These machines are bought and used when most people do not even understand the principle on which they work. The machines are expected do what they are designed to do‚ and when they cease to do this‚ they can
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INDOOR AIR QUALITY with Air & Odor Management (AOM)CONSTRUCTION TECHNOLOGYECV3144Alexandre DUSHIMESCM – 019559Lecturer: Mr Chan Joo Aik | Date : 17th October 2012 | | | Contents A. INTRODUCTION 2 Green Building 2 About Air & Odor Management (AOM) 2 1. AIR CLEANING AND PURIFYING 3 1.1. Air purifier 3 1.2. Fresh air system 3 1.3. Ceiling mounted electronic air cleaner 3 1.4. KITCHEN EXHAUST ELECTROSTATIC AIR CLEANER 4 2. ODOUR CONTROL 5 Examples: 5 Portable
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Indoor climate and ventilation JENS PEDER PEDERSEN Jens Peder Pedersen Indoor climate and ventilation INDOOR CLIMATE Thermal indoor climate Air temperature‚ air velocity and air humidity Atmospheric indoor climate: = Air quality: pollutions as dust‚ air humidity‚ gasses and smell The psychical environment Page 2 Jens Peder Pedersen Indoor climate and ventilation INDOOR CLIMATE Physical and chemical demands for the indoor climate 1. Suitable temperature 2. Suitable
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Tou4204 Air-condition and ventilation Based on the new facilities of meeting room and exhibition hall‚ we would need to design air-condition and ventilation system too. Firstly‚ great air quality and circulation is the most important part of the venue ventilation system. In contrast‚ poor air quality and circulation will easily let people sleepy. Also‚ indoor temperature should be maintained between 24-26ºC according the government standard. So‚ should have independent‚ adjustable temperature
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It’s every homeowner’s worst nightmare: waking in the middle of the night or morning to learn that you might have a leaky roof. Ballman Roofing & Coating in Sibley‚ MN‚ knows that roof replacement or repair isn’t always cheap‚ which is why being able to identify potential problems quickly is incredibly important. If you think you may have a leaky roof‚ here are sure some signs from Ballman Roofing & Coating: Mold: One of the problems with having a leaky roof is that leaks can become breeding grounds
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English 2 Angelique Carter Argumentative Essay 3/22/13 The Coolest Invention Are you tired of being hot? Well‚ air conditioners are your friend. In 1902‚ the first modern electrical air condition was invented by Willis Haviland Carrier. The reason for it was to solve some problems a printer was having with papers in the summer (“Title” 1). Air conditioners and refrigerators worked the same way. Instead of cooling just the small‚ insulated space inside of a refrigerator‚ an air
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