â liquefied natural gas (lng) is the most economical way of transporting natural gas (ng) over long distances. liquefaction of ng by using vapor compression refrigeration system requires high operating and capital cost. due to lack of systematic design methods for multistage refrigeration cycles, the conventional approaches of determining optimal cycle configuration are mostly based on trial-an...

The reported experimental results involve fully condensing flows of pure FC-72 vapor on a horizontal condensing surface (316 stainless steel) which is the bottom surface (wall) of a rectangular cross-section duct of 2 mm height, 15 mm width, and 1 m length. The sides and top of the duct are made of clear plastic. The experimental system in which this condenser is used is able to control steadyi...

The purpose of this research is to investigate a zeotropic working fluid mixture in terms of its performance in an organic Rankine cycle (ORC) and the heat transfer characteristics in an air-cooled condenser (ACC). The motivation of this study is that it is well known that the use of a mixture improves the efficiency of an ORC system. However, the behaviour of the mixture in the condensers is n...

Three novel CO2-NH3 multi-evaporator cascade refrigeration systems (CRS) are proposed and evaluated for application in seafood processing high ambient. The CRSs have evaporators both above below the temperature intended to replace a multi evaporator NH3 system. They exploit comparatively superior thermo-physical properties of CO2 low while condenser keep overall operating pressure low. Thermody...

Given a compact connected set E in the unit disk B2, we give new upper bound for conformal capacity of condenser (B2,E) terms hyperbolic diameter t E. Moreover, t>0, construct and apply novel numerical methods to show that it has larger than with same diameter. The is called Reuleaux triangle geometry constant width equal t.

In general, plastics have low density, are insulating to electricity, varying mechanical strength, limited temperature resistance, and chemical resistance so that they widely used because of their advantages. Efforts manage plastic waste practically effectively reduce the widespread pollution. The purpose this study was find out effect use condenser cooling water on results distillation capacit...