Numerical study on condensation heat transfer and pressure drop characteristics of ethane/propane mixture upward flow in a spiral pipe

Study of possible options for technological schemes of gas fractionation plants for a wide fraction of light hydrocarbons

“…В аппарате I (фракционирующий абсорбер по технологии [12] или ректификационная колонна по технологии [13]) происходит выделение из ШФЛУ этан-пропановой фракции, которая используется в качестве сырья пиролиза для заводов органического синтеза, а также как топливо для печей нефтехимических производств. Для действующих установок [12,13] исследования по поиску технологических вариантов для предельно возможного уменьшения содержания пропана в ЭПФ проводили с использованием программной среды Honeywell UniSim Design [14]. Свойства компонентов технологических потоков рассчитывались по методу Peng-Robinson.…”

Numerical Thermal Study of Heat Transfer Enhancement in Laminar-Turbulent Transition Flow Through Absorber Pipe of Parabolic Solar Trough Collector System

“…In a two-fluid horizontal circular pipe of slush nitrogen and slush hydrogen (Ohira et al 2012), a three-dimensional numerical simulation on thermal non-equilibrium was constructed. In large-scale liquid natural gas (LNG) plants, spiral wound heat exchanges (SWHE) were the most commonly used; numerical simulations were performed on condensation flow and heat transfer for propane (S. Li et al 2018b), ethane/propane mixture (S. Li et al 2018a) based on two-fluid multiphase and k-turbulence models. In a porous pipe with an expanding or contracting wall, Zheng et al, (L. Li et al 2017) studied the laminar flow concerned with multiple solutions of a single nonlinear Boundary Value Problem (BVP).…”

Numerical investigation on the effect of condensate layer formation around large-size components during vapour phase soldering

“…The condensation based heat transfer is widely used in everyday life for heating purposes like facility heating with heat pumps [1], as well as for cooling purposes such as spiral wound heat exchangers in large-scale liquid natural gas plants. [2], cooling space vehicles by loop heat pipes with steam jet pump [3] or microelectronics with heat pipes [4]. The Vapour Phase Soldering (VPS) is a reflow soldering method.…”