each of the fuels. The averages were based on five trials. PropanolTheoretical Heat of Reaction: Bonds Broken Bonds Formed Type of Bond Bond Energy (KJ/mole) Number of Bonds Total (KJ/mole) Type of Bond Bond Energy (KJ/mole) Number of Bonds Total (KJ/mole) C-H 412 7 2884 C=O 802 6 4812 C-C 348 2 696 H-O 463 8 3704 O=O 496 5 2480 C-O 366 1 366 O-H 463 1 463 Total 6889 Total 8516 Table 5: Shows the theoretical heat change in enthalpy for Propanol From the above results‚ the theoretical change
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Clausius was the first to formulate the second law in 1850. His statement was that “no machine whose working fluid undergoes a cycle can absorb heat from one system‚ reject heat from another‚ and produce no effect”. Following these came about another statement made by Kelvin and Plank which said “no heat engine whose working fluid undergoes a cycle can absorb heat from one reservoir‚ deliver an equal amount of work and deliver no other effects”. One example of the second law of thermodynamics is when
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Fenestration as the effective strategies to achieve thermal comfort and reduce heat gain in Phase l of Belum Rainforest Resort‚ Pulau Banding‚ Perak. Asian Architecture [ARC 2213/2234] PROJECT 1: CASE STUDY Fenestration as the effective strategies to achieve thermal comfort and reduce heat gain in Phase l of Belum Rainforest Resort‚ Pulau Banding‚ Perak. NAME: KEE TING TING STUDENT ID: 0310019 LECTURER: MS. SHARIANNE MOHD. SHAH SUBMISSION DATE: 11 NOVEMBER 2014 ARC 2213/2234 Asian Architecture
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The Calorimeters Calorimeters are a device that can measure the heat that comes from burning an item. Simple Calorimeter A simple calorimeter is used to detect the enthalpy change when a fuel is burned. The fuel is burnt to heat a specific mass of water and then measure its rise in temperature. The word calorimeter comes from the Latin phrase calor which means heat. A simple calorimeter just consists of a thermometer attached to a metal container full of water suspended above a combustion chamber
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Electric beaters 3 7.2.2 Mincers 3 7.2.3 Liquidisers 3 7.2.4 Blenders 4 7.2.5 Mixers 4 7.2.6 Food processors 4 7.2.7 Ice-cream makers 5 7.3 Food cooking processes 5 7.3.1 Scientific principles and types of heat transference 5 7.3.2 Cooking methods 8 7.3.3 Cooking Devices 14 7.3.4 Industrial devices 18 Food Preparation Technology 1 DRAFT July 2009 7 Food Preparation Technology 7.1 Food preparation techniques When preparing
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The heating of brown beans‚ red cabbage‚ liver sausage and brussel sprouts was done in a water bath of 82.5°C. As can be seen in figure 1 the brussel sprouts heated up the quickest and took 11 minutes to come to a 77.5°C temperature or a 5°C lower temperature than the max. The other three heated up similarly with red cabbage taking 38 minutes‚ brown beans 42 minutes and the liver sausage taking the longest with 45 minutes. Water was added to the brussel sprouts and that did have an effect on the
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P1a 1.1 Thermal Radiation * Thermal or heat radiation is the transfer of energy by infra-red waves. * Thermal radiation is energy transfer by electromagnetic waves. * All objects emit thermal radiation. * The hotter an object‚ the more thermal radiation it emits. * Heat radiation can travel through a vacuum. 1.2 Surfaces and Radiation * Dark‚ matt surfaces are better emitters of thermal radiation than light‚ shiny surfaces. * Dark‚ matt surfaces
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used to heat the aluminum block. The heater is essentially a resistor that generates heat by the principle of Joule’s Law in which a current running through a resistor converts electrical energy into heat energy. Joule heating can be expressed by the relationship Q = I2 * R * t where Q is the heat (J) generated by a constant current I (A) flowing through a conductor of resistance R (Ω) for a given time t. [1] Although electric resistance heating converts nearly 100% of the electricity to heat‚ the overall
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Traditional Radiators: While some might consider these to be a bit outdated‚ many people still rely on traditional ribbed radiators to heat their homes. They have stood the test of time and could still be considered among the best types of radiators. These radiators are comprised of pipes that carry heat throughout the radiator. This heats the air in the living space. There are two types of hydronic heating systems which utilize cast iron radiators: • Hot water heating systems circulate water
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results * The heat affected zone is a composition of parent metal which was heated to a high enough temperature for a sufficient period but doesn’t melt so that grain growth occurred. The heat affected zone is also the region whose mechanical properties and microstructure have been altered due to the heat of welding. The heat affected zone undergoes sudden heating followed by rapid cooling‚ thereby containing a series of microstructures. These microstructures within the heat affected zone are
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