Results 131 to 140 of about 2,277 (295)
On the Use of a Mixed Integer Nonlinear Programming Model for Refrigerant Design
, 1998 In this paper, a novel mixed integer nonlinear programming model for single component refrigerant design is presented. At the heart of the approach is a new formulation for structural feasibility that allows multiple bonds, connectivity and isomers.
Luke E. K. Achenie, Nachiket Churi
core
AIChE Journal, EarlyView.Abstract In cryogenic CO2 desublimation systems where phase change dominates both heat transfer and separation, conventional lumped thermal‐resistance treatments embed interfacial latent heat into an overall heat‐transfer coefficient, obscuring how phase‐change heat is partitioned between the gas phase and the coolant and limiting diagnostic insight ...
Shengwen Xiao +2 more
wiley +1 more source
EnergiesA new evaporative condensation refrigerant pump heat pipe air-conditioning unit based on a microchannel heat pipe heat exchanger is proposed. Performance experiments were conducted on the unit, and the experimental results show that the cooling capacity ...
Junjie Chu +6 more
doaj +1 more source
Numerical model of a micro-structured heat exchanger for cryogenic mixed refrigerant cycles
, 2017 Cryogenic mixed refrigerant cycles (CMRCs) offer a cost-efficient method for cooling in the temperature range between 80 and 200 K. The performance of CMRCs is considerably influenced by the entropy production in the main heat exchanger.
Gomse, David, Grohmann, Steffen
core +1 more source
Automated generative process synthesis via transformer‐based dual‐loop simulation and optimization
AIChE Journal, EarlyView.Abstract This study presents a novel framework for automated generative process synthesis, addressing the complexity of simultaneously optimizing discrete topologies and continuous operating variables. To overcome conventional superstructure limitations, we propose a dual‐loop architecture integrating generative transformers with rigorous process ...
Yeong Woo Son +4 more
wiley +1 more source
Zhileng xuebaoIn order to study the performance of the new environment-friendly refrigerant mixture, chemical simulation software was used in this study to simulate the compressor exhaust temperature, compression work, evaporator evaporation temperature, system ...
LIU Yang +3 more
doaj
International Journal of Engineering, 2013 This analysis principally focuses on the implementation of Radial basis function (RBF) and back propagation (BPA) algorithms for training artificial neural network (ANN) to get the optimum mixture of Hydro fluorocarbon (HFC) and organic compound (Hydrocarbons) for obtaining higher coefficient of Performances (COPs).
openaire +1 more source
Versatile Simulation Method for Complex Single Mixed Refrigerant Natural Gas Liquefaction Processes
, 2018 Natural gas liquefaction is an energy intensive process with very small driving forces particularly in the low temperature region. Small temperature differences in the heat exchangers and high operating and capital costs require the use of an accurate ...
Watson, Harry AJ +3 more
core
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.A laser pointer‐guided robotic grasping method for arbitrary objects based on promptable segment anything model and force‐closure analysis is presented. Grasp generation methods based on force‐closure analysis can calculate the optimal grasps for objects through their appearances. However, the limited visual perception ability makes robots difficult to
Yan Liu +5 more
wiley +1 more source
Performance Optimization and Analyses on Recuperative Heat Pump System Using CO2/R1233zd €
Zhileng xuebaoAir-source heat pumps, as a new, energy-saving, and environmentally friendly technology, are widely applied in various heating applications, yet their reliable operational efficiency at low ambient temperatures is a concern.
Zou Dexin +4 more
doaj +2 more sources