In the lower part of the figure is seen the asbestos board for the bottom of the calorimeter and underneath this a sheet of zinc.
The bed calorimeter is at the right, the absorber table in the immediate foreground, back of it the chair calorimeter and observer's table, and at the left the balance for weighing absorbers.
Special precaution was taken with thiscalorimeter to make it as comfortable and as attractive as possible to new and possibly apprehensive patients.
For this purpose we have found nothing that is as practical as the system of iron-German-silver thermo-electric elements originally introduced in this type of calorimeter by E.
Cross-section of opening, cross-section of panels of insulating asbestos, and supports of calorimeter itself are also indicated.
Some of the copper sections to be used in constructing the lining of the calorimeter can be seen against the wall in the rear.
Furthermore, in the two forms of calorimeter now in use, the experiments being of but short duration, provision is made to render it unnecessary to open the food-aperture during the experiment proper.
The rate of flow with the chair calorimeter is not far from 350 cubic centimeters per minute with a resting man.
The balance is attached to an upright I-beam which is anchored to the floor and ceiling of the calorimeter laboratory.
Section A-B shows the entrance near the floor of the calorimeter room.
It will be noted that there are four sections in the chair calorimeter, while in the bed calorimeter there are but three, and hence a special switch S{3} is installed to insure proper connections when the bed calorimeter is in use.
The bomb calorimeter from which the fuel value of food can be estimated.
When we test fats for fuel values by means of a calorimeter (Fig.
Among minor difficulties of the method may be mentioned the uncertainty of the thermal capacity of the calorimeter and stirrer, and of the immersed portion of the thermometer.
This is another objection to Rumford's method of cooling thecalorimeter below the surrounding temperature before starting.
Rumford proposed to eliminate this correction by starting with the initial temperature of the calorimeter as much below that of its enclosure as the final temperature was expected to be above the same limit.
For accurate work it is essential that the liquid in the calorimetershould be continuously stirred, and also in the enclosure, the lid of which must be water-jacketed, and kept at the same steady temperature as the sides.
The calorimeter is surrounded by an air-jacket connected to a petroleum gauge which indicates any small change of temperature in the calorimeter, and enables the manipulator to adjust the supply of cold water to compensate it.
The calorimeter contained about 5 kilogrammes of water, so that the rate of heat-supply was about 6 calories per second.
Some heat is lost when the calorimeter is raised above the temperature of its enclosure, and before the final temperature is reached.
With Professor Curie he used both the liquid oxygen and the liquid hydrogen calorimeter for preliminary measurements of the rate at which radium bromide gives out energy at low temperatures.
By the end of the century five-sixths of the African trade centred in Liverpool.
The docks of the port of Liverpool on both sides of the Mersey are owned and managed by the same public trust, the Mersey Docks and Harbour Board.
An opposite view is that the phenomena of cohesion, chemical union, &c.
My respiration calorimetershows that from that body there are still coming the products of respiration, that there is still heat in it.
Then I decided to make sure with a respiration calorimeter that would measure whatever heat, what breath, no matter how minute they were.
The heat produced by the combustion of the food in the body warms the water surrounding the calorimeter chamber, and this increase in temperature is determined by thermometers reading to 0.
Part of the heat surrendered to the calorimeter is due to the contraction of volume.
Sir John Herschel's, devised an ice-calorimeter suitable for measuring small quantities of heat, in which the difficulty of the water film was overcome by measuring the change in volume due to the melting of the ice.
With Thompson's calorimeter the reverse is the case, as the whole of the heating power of the hydrogen is taken into account.
In the instructions supplied with Thompson's calorimeter nothing is said as to the temperature of the room in which the experiment is performed, but simply that the water shall be at 60° F.
The flues of all flue boilers diminish in their calorimeter as they approach the chimney, as the smoke contracts in its volume in proportion as it parts with its heat.
The sectional area of the flue in square inches is what is termed the calorimeter of the boiler, and the calorimeter divided by the length of the flue in feet is what is termed the vent.
In the Dee and Solway steamers, by Scott and Sinclair, the calorimeter is only 9.
The tubes of tubular boilers are almost always more than 4 feet 6 inches long, but then the calorimeter is almost always less than 18 square inches per horse power--generally about two thirds of this.
If the internal diameter of the tubes be taken at thirteen eighths of an inch, the calorimeter per actual horse power will only be 1.
The method of using a throttling calorimeter is evident from the description of the instrument given and the principle upon which it works.
Sampling Nipple--The principle source of error in steam calorimeter determinations is the failure to obtain an average sample of the steam delivered by the boiler and it is extremely doubtful whether such a sample is ever obtained.
This corrected range multiplied by the water equivalent of the calorimeter gives the heat of combustion in calories of the coal burned in the calorimetertogether with that evolved by the burning of the fuse wire.
This, in effect, is the using of the separating calorimeter as a small separator between the sampling nozzle and the throttling instrument, and is necessary to insure the determination of the full percentage of moisture in the steam.
Careful calorimeter measurements were taken, showing that the saturated steam delivered to the superheater was dry.
The heat evolved in burning of a definite weight of standard naphthaline may also be used as a means of calibrating the calorimeter as a whole.
Throttling Calorimeter and Sampling Nozzle] The instrument and all pipes and fittings leading to it should be thoroughly insulated to diminish radiation losses.
The temperature of the water in the water jacket of the calorimeter should be approximately that of the surrounding atmosphere.
This calorimeter consists of two concentric metal cylinders screwed to a cap containing a thermometer well.
Before taking any calorimeter reading, steam should be allowed to flow through the instrument freely until it is thoroughly heated.
In considering the methods of calorimeter determination, the remarks applied to coal are equally applicable to any solid fuel, and such changes in methods as are necessary for liquid fuels will be self-evident from the same description.
It was noted throughout an extended series of calorimeter tests that the maximum temperature was reached by the thermometer slightly over one minute after the time of firing.
The apparatus consists of the calorimeter bomb (Fig.
This is a tubular boiler designed on the lines of a house-heating boiler, but for use as a calorimeter to determine the relative heat value of different fuels reduced to the basis of a standard cord of oak wood.
The tables used in connection with calorimeter determinations are illustrated in Fig.
The explosion calorimeter is designed to measure the amount of heat given off by the detonation of explosive charges of 100 grammes.
It is therefore essential that this experiment be carried on in a temperature somewhat above freezing: Hence, in time of frost, the calorimeter must be kept in an apartment carefully heated.
Favre and Silbermann's calorimeter for determining the heat evolved in combustion.
The construction of the calorimeter and even the method of determination vary considerably in different cases.
During this operation the calorimeter must be maintained in the vertical position shown in the diagram.
The pressure of the mixture is read off on the barometer; the calorimeter is entirely immersed in the water of the outer vessel, so that all corrections of doubtful accuracy are obviated.
Consequently, the vapor generated by the explosion must condense in the calorimeter if the final temperature of the calorimeter is the same as that of the water reservoir.
The conical form of the bottom causes the calorimeter to be emptied rapidly and to be refilled completely with explosive gas at a pressure slightly above that of the atmosphere.
The gas is forced from the bell to the calorimeter by the pressure in the bell.
The calorimeter having been completely filled with mercury is inverted in this liquid in the manner of a test tube.
The calorimeter with which he determined the amount of heat generated by the combustion, and the latent heat of evaporation, of various bodies has been already alluded to.
One is a new calorimeter for measuring the amount of heat produced by the combustion of any body.
Derived Units and Measure of Energy: Importance of erg as unit--Calorimeter usual means of determination--Photometric units.
The heat-economy-showing was verified a week or two later in a 32-hour calorimeter measurement in the apparatus of Professors Atwater and Benedict at Middletown, Conn.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "calorimeter" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: detector; instrument; thermometer
