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Topic: Calorimeter

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Bomb calorimeter

Differential scanning calorimeter

Calorimetry

Heat of combustion

Enthalpy

Exothermic reaction

Conical measure

Thermometer

Plate reader

Temperature

Graduated cylinder

Laboratory equipment

Gas syringe

Laboratory flask

Thermal analysis

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	Detector Element: Liquid Argon Calorimeter (SLAC VVC)
		Calorimeters (calorie meter) in physics and chemistry experiments measure the total heat of a reaction or process, which of course is an energy measurement.
		This calorimeter ("calorie meter") module has alternating layers of lead sheets and lead tiles, immersed in liquid argon when in use.
		The amount of charge deposited in the calorimeter in a single shower and the depth to which the shower develops are proportional to the total energy of the particle that initiated the shower.
	www2.slac.stanford.edu /vvc/detectors/calorimeters.html (392 words)

	Calorimeter Summary
		A calorimeter is a scientific instrument used to measure the heat generated or absorbed in a chemical reaction or physical process.
		A calorimeter is a device used for calorimetry, the science of measuring the heat of chemical reactions or physical changes as well as heat capacity.
		In particle physics, a calorimeter is a component of a detector that measures the energy of entering particles.
	www.bookrags.com /Calorimeter (1422 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		All of the components for The hadronic calorimeter was designed to provide a `muon blind' component to the standard left-right trigger and to reduce the trigger rate due to interactions in the spectrometer material.
		The calorimeter had to: 1) be exceptionally fast due to the high rate of interactions in the spectrometer, 2) have a sharp energy threshold, and 3) have to ability detect muons.
		It is a sampling calorimeter composed of 64 layers of 0.5 cm thick scintillator sandwiched between 2.41 cm of iron.
	ppd.fnal.gov /experiments/e871/public/calorimeter.html (523 words)

	Calorimeter - Wikipedia, the free encyclopedia
		A calorimeter is a device used for calorimetry, the science of measuring the heat of chemical reactions or physical changes as well as heat capacity.
		A bomb calorimeter is a type of calorimeter used in measuring the heat of combustion of a particular reaction.
		In particle physics, a calorimeter is a component of a detector that measures the energy of entering particles.
	en.wikipedia.org /wiki/Calorimeter (1525 words)

	Thermoelectric Total Enthalpy Flow Calorimeter
		Energy is supplied to the calorimeter either by an electrical heater or by the sample fluid flowing through the apparatus.
		As the fluid enters the calorimeter, the fluid temperature is observed with a specially designed microthermistor probe which resides inside the flow tubing.
		The principal part of the calorimeter section is an aluminum disk sandwich with a machined planar spiral groove into which the flow tubing is pressed.
	fluidproperties.nist.gov /flow.html (607 words)

	Steam Calorimeter And Steam Jet Ejector Pumps
		The throttling calorimeter is used by the process and power industries to determine the quality of steam when precise measurement of moisture content is required.
		Today, the calorimeter is used by plant engineering personnel in a wide variety of industries where the moisture content of steam is critical to plant operations.
		The calorimeter body is then connected to the sampling tube and the globe valve turned to the open position.
	www.croll.com /_website/pr/calorimeter.asp (282 words)

	Calorimeter Constant
		When using a calorimeter, the chemical reagents being studied are mixed directly in the calorimeter with the temperature recorded both before and after the reaction.
		That is, calorimeter constants represent the amount of energy absorbed or lost by the calorimeter for every one degree change in the temperature.
		Stir the water in the calorimeter frequently and when the temperature has been constant over several five-second intervals, record the temperature in each calorimeter to the nearest 0.1 °C. Pour the cold water into the warm water and record the resulting temperature of the mixture.
	www.sciencebyjones.com /calorimeter_constant.htm (833 words)

	WowEssays.com - Calorimeter
		An ideal calorimeter was a good insulator and would have a low heat capacity; the perfect heat capacity would be zero.
		Since calorimeter 1 had the lowest heat capacity, it was the best of the two calorimeters Salts in Water Tests: The first experiment performed was the heats of reaction for salts in water.
		The structure was labeled calorimeter one or two with a fl marker; so the two different vessels would not be confused during the experiments 7.
	www.wowessays.com /dbase/af2/rsk59.shtml (2636 words)

	Theory: How does a calorimeter work? (SLAC VVC)
		The electromagnetic portion of the calorimeter is the part closest to the initial high-energy collision point.
		In the SLAC Large Detector (SLD) the hadron calorimeter includes both the liquid argon calorimeter and the outer layers of steel (part of the magnet yoke) that are interleaved with detector layers and referred to as the "warm iron calorimeter."
		The B Factory calorimeter (in the BaBar detector) consists of an array of large crystals of cesium iodide.
	www2.slac.stanford.edu /vvc/theory/calorimeter.html (1096 words)

	History of Dairy and Animal Science
		The Armsby Calorimeter was completed in 1902, and in 1907 Armsby became director of the newly-formed Institute of Animal Nutrition.
		The calorimeter was modified to accommodate four sheep instead of one large ruminant and was used mainly in comparative evaluation of forages until the mid-1950s, when it was converted to study the relationship of proportion of nutrients (fat, protein, etc.) to energy metabolism in humans.
		These experiments demonstrated the sensitivity of the calorimeter, as the operator could easily detect the burst of heat generated when the volunteer student subject turned over in his sleep or was stimulated by sight of a volunteer coed delivering his meal.
	www.das.psu.edu /history/calorimeter.cfm (643 words)

	Calorimeter
		Hadronic showers have a widely fluctuating shape; their average extent does not scale with the calorimeter's interaction length, but is partly determined by the radiation length.
		In homogeneous calorimeters the functions of passive particle absorption and active signal generation and readout are combined in a single material.
		The span of possible solutions for calorimeters is much wider than for tracking devices, and quite ingenious solutions have been found by imaginative experimental teams over the last 15 years, since calorimeters became key components of particle detectors.
	www.cern.ch /RD11/rkb/PH14pp/node19.html (876 words)

	OPAL Calorimeters (Site not responding. Last check: 2007-10-13)
		The calorimeter system is composed of lots of pieces of dense material: the idea is that most particles hitting the calorimeter will slow down and stop.
		The hadron calorimeter measures the energy of hadrons emerging from the electromagnetic calorimeter and assists in the identification of muons.
		The forward calorimeters are a special set of calorimeters which are placed around, and close to, the beam pipe at the two ends of the detector.
	opal.web.cern.ch /Opal/tour/calorimeter.html (358 words)

	Americium/Curium Calorimeter
		Calorimeter operations are planned over a two year period resulting in nearly 4 x 10^8 rads cumulative dose.
		In a typical DTC calorimeter, thermoelectric coolers are placed between a measurement chamber and a constant temperature sink.
		The calorimeter system was initially characterized to develop the reference side correlation and appropriate control algorithm.
	sti.srs.gov /fulltext/ms2000342/ms2000342.html (1674 words)

	Calorimetry: Heat Capacity of the Calorimeter (Site not responding. Last check: 2007-10-13)
		In calorimetry it is often desirable to know the heat capacity of the calorimeter itself rather than the heat capacity of the entire calorimeter system (calorimeter and water).
		Because the water and calorimeter are in thermal equilibrium, they both have the same temperature and thus ΔT is the same for both.
		The calorimeter exists as a fixed unit, thus its heat capacity is a fixed value.
	www.chm.davidson.edu /ChemistryApplets/calorimetry/HeatCapacityOfCalorimeter.html (503 words)

	Calorimeter
		Hadronic showers have a widely fluctuating shape; their average extent does not scale with the calorimeter's interaction length, but is partly determined by the radiation length.
		In homogeneous calorimeters the functions of passive particle absorption and active signal generation and readout are combined in a single material.
		The span of possible solutions for calorimeters is much wider than for tracking devices, and quite ingenious solutions have been found by imaginative experimental teams over the last 15 years, since calorimeters became key components of particle detectors.
	rd11.web.cern.ch /RD11/rkb/PH14pp/node19.html (876 words)

	Calorimeter (particle physics) - Wikipedia, the free encyclopedia
		Most particles enter the calorimeter and initiate a particle shower and the particles' energy is deposited in the calorimeter, collected, and measured.
		Typically, calorimeters are segmented transversely to provide information about the direction of the particle or particles, as well as the energy deposited, and longitudinal segmentation can provide information about the identity of the particle based on the shape of the shower as it develops.
		An electromagnetic calorimeter is one specifically designed to measure the energy of particles that interact primarily via the electromagnetic interaction, while a hadronic calorimeter is one designed to measure particles that interact via the strong nuclear force.
	en.wikipedia.org /wiki/Calorimeter_(particle_physics) (305 words)

	NREL: Energy Storage - Large Conduction Calorimeter
		Heat conduction calorimeters sense heat flux between the sample and a heat sink, an enclosure that is fabricated with aluminum surrounded by an isothermal bath which contains the sample.
		In practice, the thermal conductivity of the path between the sample and the heat sink is matched to the expected heat flow to minimize the temperature difference.
		The measuring unit of the calorimeter comprises a 39 cm L x 21 cm W x 20 cm H aluminum enclosure connected to a large aluminum heat sink via heat flow sensors (semiconductor thermoelectric devices) between the heat sink and the sample cavity.
	www.nrel.gov /vehiclesandfuels/energystorage/lab_calorimeter.html (470 words)

	Lead Glass Calorimeter
		Each calorimeter is a stack of 10 cm x 10 cm x 70 cm blocks of TF1 lead glass, with a PMT on one end.
		The gain monitoring system was in place for the calorimeter at the time of the run, but was not used because it had not been sufficiently tested at that time.
		While the calorimeters and readout electronics are identical in the two spectrometers, the HMS had additional noise at the ADC which worsened the average resolution.
	www.krl.caltech.edu /~johna/thesis/node35.html (937 words)

	kalorimeter> (Site not responding. Last check: 2007-10-13)
		The jets are absorbed mainly in the steel plate calorimeter and produce electrical signals which can be recorded.
		Electrons and photons are absorbed by lead portions of the calorimeter and their energy and direction can also be deduced.
		The calorimeter is constructed of a series of wheels and these are slid into the detector on special rails.
	www-h1.desy.de /h1/www/general/public/en/kalorimeter_eng.html (174 words)

	calorimeter
		A simple calorimeter consists of a heavy copper vessel that is polished (to reduce heat losses by radiation) and covered with insulating material (to reduce losses by convection and conduction).
		In a typical experiment, such as to measure the heat capacity of a piece of metal, the calorimeter is filled with water, whose temperature rise is measured using a thermometer when a known mass of the heated metal is immersed in it.
		Chemists use a bomb calorimeter to measure the heat produced by burning a fuel completely in oxygen.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016584.html (288 words)

	GLAST: Science - Simulations Of Alternative Designs For The Glast Calorimeter
		Two normally incident illumination patterns were studied with a monoenergetic beam of 10-GeV gammas: an infinitesimal pencil beam impinging on the centers of crossed crystals in the hodoscopic arrangement near the center of GLAST; and uniform illumination of the center module.
		A calorimeter module (one of 25 such modules in the whole instrument) consists of eight layers, with ten crystals per layer.
		The vertex determinations appear to be independent of the presence of 10-cm gap, whose influence on the SSD measurements would be to decrease the fringe hits resulting from backsplash; the (hypothetical) decrease is negligible since fringe hits are efficiently eliminated by the positional reconstruction algorithm.
	glast.gsfc.nasa.gov /science/resources/docs/gap (3400 words)

	Bomb Calorimeter -ISO 1716
		The bomb calorimeter is the most common device for measuring the heat of combustion or calorific value of a material.
		The water temperature in the calorimeter vessel and that of the outer bath are both monitored.
		An isoperibolic bomb calorimeter is a calorimeter where the jacket temperature is kept at a constant temperature while the calorimeter vessel (bomb and bucket) temperature rises as heat is released by the combustion of a sample.
	www.fire-testing.com /html/instruments/iso1716.htm (593 words)

	Calorimeter, Model 1341, Plain Jacket (Site not responding. Last check: 2007-10-13)
		The 1341 Calorimeter is an improved version of a plain, static jacket, oxygen bomb calorimeter that has been made by Parr for more than eighty years.
		Although commonly called a 'plain' calorimeter because of its simple design, technically this is a static jacket instrument which operates at or near room temperature with no provision for controlling the jacket temperature.
		The 1341 Calorimeter is furnished with an 1825 Oxygen Filling Connection, six fuel capsules, fuse wire for 1500 tests and support stands for the bomb head and calorimeter cover, also a vial of benzoic acid pellets for standardizing the calorimeter and complete operating instructions.
	www.parrinst.com /default.cfm?page_id=176 (734 words)

	Lead Glass Calorimeter Calibrations
		In order to determine the energy deposited in the calorimeter, the gain of each module (lead glass block plus PMT) must be determined, and the ADC value measured must be converted into an energy deposited.
		Figure 3.4 shows the measured calorimeter energy versus y position (y=0 corresponds to the center of the block) before and after the correction for attenuation.
		For the third layer of the calorimeter, the electron energy deposition is fairly small except for the highest energy electrons.
	www.krl.caltech.edu /~johna/thesis/node55.html (777 words)

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