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Calorimeter
About: Calorimeter is a research topic. Over the lifetime, 5878 publications have been published within this topic receiving 77157 citations.
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TL;DR: In this paper, an adiabatic calorimeter is described, by means of which the spontaneous heating characteristics of dry pulverized coal can be studied, so as to obtain a direct measure of the rate of spontaneous heating at different temperatures, uninfluenced by various heat interchange factors.
Abstract: An adiabatic calorimeter is described, by means of which the spontaneous heating characteristics of dry pulverized coal can be studied, so as to obtain a direct measure of the rate of spontaneous heating at different temperatures, uninfluenced by various heat interchange factors. Specimen time-temperature curves of different coals are presented, which show approximately the same rate of heating over corresponding temperature ranges. From these curves, it is concluded that the main characteristic of spontaneous heating is that the rate of heating is an increasing function of the temperature. An empirical formula is developed, for which the constants, K, a and b, are determined for a Pittsburgh coal; θ= temperature, and T= time. From this formula, it is concluded: (1) no heating will take place below 26.27°C; (2) the time required for Pittsburgh coal to heat from this temperature to ignition is 144 hours, both the coal and the oxygen used being moisture free.
24 citations
TL;DR: In this paper, a twin-type heat-conduction calorimeter for an aerobic fermentation process was designed and constructed fermentor both in batch and continuous runs, and the time constant of the Calorimeter was 3.3 min.
Abstract: A twin-type heat-conduction calorimeter for an aerobic fermentation process was designed and constructed fermentor both in batch and continuous runs. The time constant of the calorimeter was 3.3 min. The volumetric oxygen transfer coefficient (kLa) of the vessel was measured by a sulfite oxidation method in a continuous flow system under various rotation speeds and gas flow rates. Sufficient thermal stability of the calorimeter was obtained both in batch and continuous runs within the operation time period.
24 citations
Patent•
24 Feb 1989TL;DR: A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described in this paper, where the present invention also relates to a method of operation of this apparatus.
Abstract: A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described. The present invention also relates to a method of operation of this apparatus.
24 citations
TL;DR: In 1989, Fleischmann and Pons as mentioned in this paper reported the production of heat during the electrolysis of D2O at a Pd cathode and Pt anode in excess of that predicted by the electrochemical theory for heat production in cells.
24 citations
31 May 2016-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, a direct fiber-photosensor coupling was proposed to avoid routing and bundling of the wavelength shifter fibers and embedding ultra-compact photosensors in the bulk of the shashlik calorimeter.
Abstract: The longitudinal segmentation of shashlik calorimeters is challenged by dead zones and non-uniformities introduced by the light collection and readout system. This limitation can be overcome by direct fiber–photosensor coupling, avoiding routing and bundling of the wavelength shifter fibers and embedding ultra-compact photosensors (SiPMs) in the bulk of the calorimeter. We present the first experimental test of this readout scheme performed at the CERN PS-T9 beamline in 2015 with negative particles in the 1–5 GeV energy range. In this paper, we demonstrate that the scheme does not compromise the energy resolution and linearity compared with standard light collection and readout systems. In addition, we study the performance of the calorimeter for partially contained charged hadrons to assess the e/π separation capability and the response of the photosensors to direct ionization.
24 citations