Calorimeter

About: Calorimeter is a research topic. Over the lifetime, 5878 publications have been published within this topic receiving 77157 citations.

A novel way of electron identification in calorimeters

Abstract: We show that electromagnetic and hadronic showers can be distinguished through differences in the time structure of the calorimeter signals. These differences occur at the level of 5–10 ns. It is experimentally observed that with a detector that is sufficiently fast, i.e. the scintillating fibre calorimeter developed in the framework of the LAA project at CERN, e/π separation can be achieved at the 1% level, independent of any knowledge of the shower profile.

Calorimetric determination of inactivation parameters of micro-organisms.

Abstract: J. L EE A ND G . K ALETUNC ¸ . 2002. Aims: This study aimed to apply differential scanning calorimetry (DSC) to evaluate the thermal inactivation kinetics of bacteria. Methods and Results: The apparent enthalpy (DH )o fEscherichia coli cells was evaluated by a temperature scan in a DSC after thermal pretreatment in the calorimeter to various temperatures between 56 and 80� C. Conventional semilogarithmic survival curve analysis was combined with a linearly increasing temperature protocol. Calorimetrically determined D and z values were compared to those obtained from plate count data collected under isothermal conditions to validate the new approach. Conclusions: The calculated D values using both apparent enthalpy and viability data for cells heat treated in the DSC were similar to the D values obtained from isothermal treatment. Temperatures for 1 through 10-log microbial population reductions, calculated from plate count and enthalpy data, were in agreement within 0AE5–2AE4� Ca t a4 � C min )1 heating rate. Significance and Impact of the Study: This novel calorimetric method provides an approach to obtain accurate and reproducible kinetic parameters for inactivation. The calorimetric method here described is time efficient and is conducted under conditions similar to food processing conditions.

Study of burning behavior of small scale wood crib with cone calorimeter

Abstract: Burning behavior of small-scale wood crib was studied by a serial of cone calorimeter tests. The heat release rate curves of these small wood cribs were different due to porosity factor and this shows that the control condition switches from one to another. The burning of some crib with small porosity factors was self-extinguished in fixed flow rate of air supply in cone calorimeter. These results were compared with Gross’s studies. The switch point of porosity-controlled and surface area controlled burning regime is different from Gross’s result.

Thermal hazard assessment of 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowutrzitane (TEX) by accelerating rate calorimeter (ARC)

Abstract: The thermal decomposition behaviors of 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazaisowutrzitane (TEX) were studied by using accelerating rate calorimetry to achieve the hazard assessment of TEX explosive, and the kinetic parameters were studied from the measured self-heating rate data by assuming a zero-order reaction. Moreover, the specific heat capacity date of TEX was obtained from differential scanning calorimetry. These results could be contributed to improve the safety in the reaction, transportation, and storage processes of TEX.