for heat exchanger network synthesis with ..
J., Comparison of heat transfer rates between a straight tube heat exchanger and a helically coiled heat exchanger, Heat and mass transfer, 2002, 29, pp.185-191.
 Timothy J.
Optimal heat exchanger network synthesis with …
This paper presents a systematic method for synthesis of heat exchanger networks, the proposed algorithm consists of three sequential steps to select the optimal approach temperature: i) Estimation of normalized minimum approach temperature, normalized minimum hot utility and normalized minimum cold utility. ii) Fuzzy analogical gates network. iii) Selection of the best weight index. Two analogical gates (symmetric and asymmetric) are employed. The symmetric gate (AND gate) inputs are the normalized minimum approach temperature and normalized hot utility. The asymmetric gate (Invoke gate) inputs are the output of the AND gate and the normalized cold utility. The proposed method has been applied for four problems well-known in published literature. The results of these case studies show that the present strategy is both robust and accurate in finding out global optimum in comparison with previous works, characterized by its simplicity and can be implemented by hand calculations.
Steam Turbine - Superheater, reheater and partial condenser vacuum. Combined Feed heating and Reheating. Regenerative Heat Exchangers, Reheaters and Intercoolers in Gas Turbine power plants. Hydro power plants - turbine characteristics. Auxiliaries - Water Treatment Systems, Electrostatic Precipitator / Flue gas Desulphurisation, Coal crushing / Preparation - Ball mills / Pulverisers, ID/FD Fans, Chimney, Cooling Towers.
synthesizing networks of heat exchangers | Download …
Thermodynamic systems and postulates, thermodynamic equilibrium, thermodynamic relations, stability and phase transition. Entropy generation and exergy analysis, exergy analysis of fluid flow systems, heat transfer and heat transfer augmentation, heat exchangers. Heat recovery systems, pinch analysis, energy targeting, heat exchanger networks, area/unit/shell targeting, capital-energy trade-off, multiple utilities, network evolution and evaluation, retrofitting, crude preheat train. Plant utility systems, cogeneration, steam-power balance and optimisation, Thermo economic optimization
synthesizing networks of heat exchangers ..
Modelling overview-levels of analysis, steps in model development, examples of models. Quantitative Techniques: Interpolation-polynomial, Lagrangian. Curve-fitting, regression analysis, solution of transcendental equations. Systems Simulation-information flow diagram, solution of set of nonlinear algebraic equations, successive substitution, Newton Raphson. Examples of energy systems simulation Optimisation : Objectives/constraints, problem formulation. Unconstrained problems- Necessary & Sufficiency conditions. Constrained Optimisation- Lagrange multipliers, constrained variations, Kuhn-Tucker conditions. Linear Programming - Simplex tableau, pivoting, sensitivity analysis. Dynamic Programming. Search Techniques- Univariate / Multivariate. Case studies of optimisation in Energy systems problems. Dealing with uncertainty- probabilistic techniques. Trade-offs between capital & energy using Pinch Analysis. Energy- Economy Models: Scenario Generation, Input Output Model. Numerical solution of Differential equations- Overview, Convergence, Accuracy. Transient analysis- application example.
Heat Exchanger Network Optimization by Differential Evolution ..
Climates and buildings. Thermal properties and energy content of building materials, Psychrometry, Comfort conditions, Airconditioning systems. Energy conservation techniques in Airconditioning systems. Lighting (Daylighting and Electric lighting). Passive and active methods of heating and cooling. Estimation of building loads. Steady state method, Network method, Numerical method, Corelations. Computer packages for carrying out thermal design of buildings and predicting performance.
Shenoy, Heat Exchanger Network Synthesis…
Process Integration, Targeting for energy, Area, unit and cost Heat exchanger network design and evolution, Heat exchanger design, Retrofit design, Mathematical optimization techniques, Process integration of different systems: fired heater, Cogeneration and utility system, Solar thermal, stand alone power system distillation column, evaporators, Resource management: Water management, Hydrogen management, Environmental management, Recent developments.