Abstract The overall nonideality of an aqueous mixed electrolyte solution is characterized in terms a newly defined parameter Γ*, called the reduced ionic activity coefficient. It shown that Γ* for simply related to properties single‐electrolyte solutions. vapor pressure mixed‐electrolyte through well‐known thermodynamic equations. This leads predictive equation pressures solutions components. valid over entire concentration range encountered practice, without any empirical constants, and...

Abstract The overall reduced ionic activity coefficient Γ* is useful in characterizing the nonideality of an aqueous mixed‐electrolyte solution. It has been shown Part I that can be simply related to Γ single‐electrolyte solutions containing component electrolytes without using empirical constants. This basic relationship used this paper for deriving predictive equations several properties terms corresponding electrolytes. need no covered include volume such as density and adiabatic...

Abstract A number of studies on packed‐bed immobilized enzyme reactors have shown the significant influence external film mass transfer resistance apparent kinetic parameters. Some earlier mathematical models using approximation techniques attempted to explain linearity S 0 x vs ln (1 − ) plots observed experimentally for systems obeying Michaelis–Menten kinetics. However, there has been no critical examination bounds validity approximations used. Further, situations where above is not valid...

A mathematical model for an integrated heat-pump-assisted dryer has been developed. The modelled considering the heat transfer and simultaneous mass zones. heat-pump exchangers have by writing enthalpy balance differential lengths various zones on air working-fluid sides. compressor described polytropic compression equation. used simulating existing system using R11 to study effect of approach velocity evaporator suction superheat specific energy consumption pump assisted dryer.

Abstract A simple method is proposed for estimating the vapour pressures of aqueous single electrolyte solutions at 25°C. The based on a empirical parameter, K. treatment extended to include different temperatures as well mixed electrolytes. estimation in requires knowledge K values constituent electrolytes and pressure two reference electrolytes, viz. LiBr NH 4 NO 3 calculated are agreement with experimental data within 1.6% general.

Abstract A method is proposed for calculating the steady‐state distribution of mixtures solid particles and axial bed porosity in liquid fluidized beds. The extent stratification assumed to be determined by differences among settling velocities random motion these that a result fluidization. Predictions particle based on present were found agree reasonably well with experimental data.

The performance of an experimental heat-pump-assisted dryer under operating conditions some practical interest was studied. system operated using R11 and R12. approach velocity air to the evaporator superheat working fluid at exit were identified as critical parameters for optimization. evaluated with respect coefficient (COP) specific energy consumption (SEC). (COP)A, (SEC) values obtained 3.5 3500 kJ/kg, respectively, corresponding R12 2.5 1800 kJ/kg. In spite lower R12, better because...

Abstract The extended crossflow model is proposed and developed for describing gas absorption with chemical reaction in a packed bed operated the trickle flow regime. involves division of total interfacial area into static hold‐up that dynamic hold‐up. concept effectiveness presented. A procedure calculating effectiveness, consequently, effective various different processes reaction, both liquid phase controlled controlled. predictions based on present agree well reported experimental data....

Abstract The extended crossflow model was proposed earlier 5 to account for the role of stagnant zones liquid in a packed trickle bed during absorption with chemical reaction. Here is applied second order reaction investigate behaviour effectiveness f interfacial area static hold‐up General criteria are developed which give conditions limiting kinetics any form. Finally, possible pitfall described detail must be avoided conducting kinetic experiments bed.

Intimacy estimation of a given text has recently gained importance due to the increase in direct interaction NLP systems with humans. is an important aspect natural language and substantial impact on our everyday communication. Thus level intimacy can provide us deeper insights richer semantics conversations. In this paper, we present work SemEval shared task 9 predicting for text. The dataset consists tweets ten languages, out which only six are available training dataset. We conduct...