When designing a heat pump evaporator, it is necessary to use correlations that ensure small deviations of the designed and realized process parameters for specific input data. The aim work propose suitable mathematical model physical in tubular evaporator pump. applicability proposed design was evaluated by comparing results obtained from experimental tests with numerical application model. Fo...

In this study, evaporator optimization, via both experimental and simulation methods was conducted. To evaluate the performance, under optimal system, compressor operating time effects of oil on refrigerator system were studied. If temperature chamber reaches setting value, stops working it leads to slowly increasing, due heat transfer ambient. When is out range, works again, repeats process un...

Conventional control of household refrigerators is typically accomplished with simple, single-sensor control systems. Though cost-effective this approach allows temperature dependencies to exist between compartments, producing non-optimal energy consumption. In order to study the performance of the conventional refrigerator a computer model was developed. Analytical results were generated to de...

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...

Refrigerant maldistribution severely deteriorates the heat transfer performance of a microchannel evaporator. Compared with refrigerant distribution among flat tubes along header, microchannels in tube airflow direction has barely been paid attention. In this paper, mathematical model evaporator’s composed vertically placed parallel was developed. The evaluated and its influence on between air ...

Solar-driven interfacial evaporation is regarded as one of the most promising technologies to address critical issue global water scarcity . However, a great deal energy lost via conduction during process. Herein, self-floating Janus evaporator containing micron-sized isolated bubbles that can enhance heat localization designed. The synthesized by gas foaming polyacrylonitrile (PAN) nanofibers ...

Abstract Interfacial solar energy evaporation is an effective measure to alleviate the current global shortage of clean water resources. However, many evaporators are two-dimensional (2D) structured devices developed by coating light-absorbing materials on surface host materials, and efficiency steam generation limited. For this reason, present study reports a facile environment-friendly method...