Experiment no. 1 Group No./Time/Day:6/7:30-10:30/Wednesday I. Title: Specific Heat of Solids II. Object: To determine the specific heat capacity of solids by methods of mixtures. III. Apparatus: Lead and Iron shots‚ Electric heater‚ Calorimeter‚ Dipper‚ 2 Thermometers‚ Water bath‚ Set of Masses‚ Trip Scale balance‚ Extension cords
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Fi l +m = Fil + Fim Ji Gij qij i‚ Ji‚ Ai qij=(JiJj)/(1/AiFij) blackbody Ji=Ei(T) function of temperature Radiation network to find flux or potential 40 to 50 % ison radiation Heat exchanger U fouling factor will increase the resistance of heat transfer. how to include into the overall equation (mcp)h Th‚ in Tc‚ out (mcp)c Tc‚in You want to know the cooling effect energy conservation Q= {mcp(Th‚iTh‚o)}h ={mcp(Tc‚oTc‚i) }c Delta Tlm
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HEAT AND MASS TRANSFER REPORT ON TRANSIENT HEAT CONDUCTION Submitted by CDT ARSHAD ALI CDT NIKHIL BHATIA Submitted to Associate Proffessor Pradeep Kumar Singh Indian Naval Academy Knowledge Begets immortality Certificate This is to certify that this project report entitiled “TRANSIENT HEAT CONDUCTION” by CDT ARSHAD ALI and CDT NIKHIL BHATIA during the academic year 2010-2014‚ is a bonafide record of work carried out under my guidance
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Practice Problems Set – 1 MEC301: Heat Transfer Q.1 The slab shown in the figure is embedded on five sides in insulation materials. The sixth side is exposed to an ambient temperature through a heat transfer coefficient. Heat is generated in the slab at the rate of 1.0 kW/m3. The thermal conductivity of the slab is 0.2 W/m-K. (a) Solve for the temperature distribution in the slab‚ noting any assumptions you must make. Be careful to clearly identify the boundary conditions. (b) Evaluate T at the
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Specific heat is the property of the material that an object is made of. The greater the material’s specific heat and the mass‚ the more energy must be added to change its temperature. The goals of this lab were to calculate the specific heat of water and compare to the known value of 4.19J/°Cg. Another goal was to calculate the efficiency of the hot pot used for the experiment and to estimate the cost to heat water for a cup of tea and to bath in a bathtub. The thermal energy E= cm Δ T‚ required
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HEAT TRANSFER MECHANISMS Heat energy is being transferred from one location to another because of a temperature difference. The three mechanisms for heat transfer are: • Conduction. When you grip the hot handle of a pan on a stove‚ you feel conduction in action. Heat flows from the pan and along the length of the handle to its cooler free end. This is because one end of the rod is held at the high temperature‚ and the other end stays at the lower temperature. Although the rod itself doesn’t
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Heat Stress Exercises- Bhaskarla Krishna Harika Question 1: (5 marks) Herbicide spraying is taking place with a hand-held spray. The sprayers carry a container of weedkiller on their backs and the spraying covers a large area which they are covering on foot. The sprayers have just come back from annual leave‚ this being their first week back. To protect themselves against the herbicide‚ they are wearing cotton coveralls and gloves. On the day when spraying is to take place‚ the
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Heat Waves What is heat wave? A heat wave is a prolonged period of excessively hot weather‚ which may be accompanied by high humidity. While definitions vary‚ a heat wave is measured relative to the usual weather in the area and relative to normal temperatures for the season. Temperatures that people from a hotter climate consider normal can be termed a heat wave in a cooler area if they are outside the normal climate pattern for that area. What are the symptoms of heat strokes and sunstroke
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Marybeth Brooks Physics Lab III Specific Heat Capacity Lab May 25‚ 2011 Abstract The specific heat capacity of various metals can be calculated and compared to accepted literature values. Dropping heated metal samples into a calorimeter filled with water and then measuring the change in the temperature of the system accomplished this. The metal samples were heated in a boiling water bath and were assumed to be at 100 C when they were removed. It was added to a calorimeter and stirrer
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Determination of specific heat Capacity of a solid by electrical method Introduction Thermal conductivity heat is transferred as a consequence of temperature difference between 2 bodies‚ heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius‚ different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the internal
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