Heat pipe is a device that transports heat with minimal temperature drop using the latent heat of fluid in a closed container. In vertical type named as thermosyphon (Wickless), capillary action is replaced by the gravitational force, this condenser is placed above evaporator. In this paper, to investigate the effect of inlet air temperature and the air mass flow rate was studied. The temperatu...

The last stage in the design process for a chemical product is its manufacture, where the purification has an important role. Short-path evaporation is a safe method suitable for separation and purification of thermally unstable materials. In this work the process modelling and a systematic strategy of solution is presented for a short-path evaporator to obtain the desired product specification...

Abstract: Electric vehicle heat pumps are drawing more and more attention due to their energy-saving and high efficiency designs. Some problems remain, however, in the usage of the heat pumps in electric vehicles, such as a drainage problem regarding the external heat exchangers while in heat pump mode, and the decrease in heating performance when operated in a cold climate. In this article, an...

ing characteristics could be investigated. Finally the pilot plant A single tube plant Kestner evaporator'was set up at was run under 1st effect conditions in order that a comparison Illovo to investigate heat transfer characteristics when could be made with industrial 1st effect evaporators (both simulating different evaporator Tests carried out have Roberts and Kestner). This particular trial...

This paper describes a multi-evaporator vapor compression model capable of simulating the dynamic behaviour of transport refrigeration systems. A discrete multi-zone control volume approach is utilised for modelling the condenser and evaporators. All other major refrigeration components including compressor, expansion valves, receiver, pressure-regulating valves are modeled using time-dependent...

This paper presents an experimental and numerical study to evaluate the thermal-hydraulic performance of light commercial capacity evaporators operating under frosting conditions. A tube-fin heat exchanger was tested on a closed-loop wind-tunnel considering the fan performance. A visual analysis of the frost formation processes was carried out to compare the frost layer morphology in different ...

Flat tube heat exchangers with louvered fins were applied in order to meet the performance requirements and compactness in automotive air conditioning systems. Experimental and simulation study focusing on the air side thermal hydraulic performance of automotive heat exchangers were performed in this article. Test results showed that the heat capacity of a condenser with 5.4 mm height louvered ...

Evaporator merupakan salah satu alat utama di unit kilang PPSDM Migas Cepu yang sudah cukup lama digunakan sehingga perlu dilakukan perhitungan efisiensi evaporator. Perhitungan untuk mengetahui kelayakan evaporator tersebut proses pengolahan minyak mentah Cepu. berdasarkan data dari yaitu kondisi evaporator, densitas tiap komponen, massa dan distilasi ASTM (American Society for Testing Materia...