Thermodynamic analysis of novel multi stage multi effect metal hydride based thermodynamic system for simultaneous cooling, heat pumping and heat transformation

2017 ◽  
Vol 42 (1) ◽  
pp. 437-447 ◽  
Author(s):  
Vinod Kumar Sharma ◽  
E. Anil Kumar
Keyword(s):  
Thermodynamic Analysis ◽  
Metal Hydride ◽  
Thermodynamic System ◽  
Multi Stage ◽  
Heat Transformation ◽  
Heat Pumping

Thermodynamic analysis of metal hydride-vapour compression hybrid systems

1987 ◽  
Vol 7 (3) ◽  
pp. 221-229 ◽  
Author(s):  
M. Balakumar ◽  
S. Srinivasa Murthy ◽  
M.V. Krishna Murthy ◽  
M.V.C. Sastri
Keyword(s):  
Hybrid Systems ◽  
Thermodynamic Analysis ◽  
Metal Hydride ◽  
Vapour Compression

Performance analysis of metal hydride based simultaneous cooling and heat transformation system

2019 ◽  
Vol 44 (21) ◽  
pp. 10906-10915 ◽  
Author(s):  
Man Mohan ◽  
Maitray Sharma ◽  
Vinod Kumar Sharma ◽  
E. Anil Kumar ◽  
A. Satheesh ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Metal Hydride ◽  
Transformation System ◽  
Heat Transformation

scholarly journals Thermodynamic analysis of the gas parameters distribution under leakage from a closed volume with rigid walls

2019 ◽  
Vol 109 ◽  
pp. 00071
Author(s):  
Serhii Ponomarenko ◽  
Oleksandr Zhevzhyk ◽  
Alex Vuginshteyn ◽  
Oleksandr Lutai
Keyword(s):  
Thermodynamic Analysis ◽  
Thermodynamic System ◽  
Effect Of Temperature ◽  
Closed Volume ◽  
Excessive Pressure ◽  
Gas Leakage ◽  
Parallel Processes ◽  
Average Temperature ◽  
Leakage Coefficient ◽  
Rigid Walls

The work deals with the thermodynamic analysis of the parameters of the gas in a closed volume with rigid walls, during its leakage and heat exchange with the environment. Based on the first law of thermodynamics, the law of Fick and the equation of the gas state, we obtained an equation that characterizes the effect of temperature gradient on the mass gas leakage in parallel processes of leakage and heat transfer. The regularity of the leakage coefficient change, determined by the diffusion coefficient, depending on the mass-average temperature in a closed thermodynamic system, is established. The variation of the leakage coefficient for the corresponding ranges of temperature gradients are shown. The research results can be implemented in the development of techniques and technologies for monitoring the tightness of hollow products under excessive pressure of the gas medium.

scholarly journals Thermodynamic Analysis of Working Fluids for a New “Heat from Cold” Cycle

Entropy ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 808 ◽  
Author(s):  
Ilya Girnik ◽  
Mikhail Tokarev ◽  
Yuri Aristov
Keyword(s):  
Thermodynamic Analysis ◽  
Chemical Engineering ◽  
Activated Carbons ◽  
Maximum Temperature ◽  
Adsorption Potential ◽  
Working Fluids ◽  
Useful Heat ◽  
Heat Transformation ◽  
Transformation Systems ◽  
Made In

Adsorptive Heat Transformation systems are at the interface between thermal and chemical engineering. Their study and development need a thorough thermodynamic analysis aimed at the smart choice of adsorbent-adsorptive pair and its fitting with a particular heat transformation cycle. This paper addresses such an analysis for a new “Heat from Cold” cycle proposed for amplification of the ambient heat in cold countries. A comparison of four working fluids is made in terms of the useful heat per cycle and the temperature lift. The useful heat increases in the row water > ammonia ≥ methanol > hydrofluorocarbon R32. A threshold mass of exchanged adsorbate, below which the useful heat equals zero, raises in the same sequence. The most promising adsorbents for this cycle are activated carbons Maxsorb III and SRD 1352/2. For all the adsorptives studied, a linear relationship F = A·ΔT is found between the Dubinin adsorption potential and the driving temperature difference ΔT between the two natural thermal baths. It allows the maximum temperature lift during the heat generation stage to be assessed. Thus, a larger ΔT-value promotes the removal of the more strongly bound adsorbate.

Thermodynamic analysis and optimization of a multi-stage compression system for CO2 injection unit: NSGA-II and gradient-based methods

2021 ◽  
Vol 43 (10) ◽  
Author(s):  
Ali Allahyarzadeh-Bidgoli ◽  
Paulo Eduardo Batista de Mello ◽  
Daniel Jonas Dezan ◽  
Fábio Saltara ◽  
Leandro Oliveira Salviano ◽  
...  
Keyword(s):  
Thermodynamic Analysis ◽  
Co2 Injection ◽  
Nsga Ii ◽  
Compression System ◽  
Multi Stage ◽  
Gradient Based ◽  
Injection Unit
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