A comprehensive review of ejector design, performance, and applications

Influence of indoor environmental quality on human health and productivity - A review

Plate heat exchangers have been widely applied in numerous industrial applications since their first commercial exploitation in the 1920s. Enhancing the thermal-hydraulic performance of plate heat exchangers is of crucial importance for the energy conversion as well as for the improvement of the system economy, through savings in the capital investment. The efficiency of a plate heat exchanger can be improved either by optimizing its geometry or using heat transfer enhancement techniques. This paper provides a comprehensive review of previous works regarding the effects of chevron corrugation geometrical parameters on the performance of plate heat exchangers, and the application of heat transfer enhancement techniques in plate heat exchangers, focusing on passive surface techniques and the use of nanofluids. The objective of the paper is not only to describe relevant studies, but also to provide an understanding of the heat transfer mechanisms governing the results, and to evaluate and compare the different heat transfer enhancement techniques. In addition, prospective directions for future research are provided. The review indicates that for the chevron-type plate heat exchanger, the chevron angle is the most influential geometrical parameter by changing the flow structures in the single-phase heat transfer; meanwhile the chevron angle has a significant influence on the heat transfer regions characterized by convection in the two-phase heat transfer. An analysis based on the performance evaluation criteria suggests that the thermal-hydraulic performances of the studies with different geometrical parameters and enhancement techniques are generally higher at low Reynold numbers. Furthermore, the review and analysis indicate that the capsule-type embossing surface and the microstructured surface with a nano- and microporous layer are the enhancement techniques that present the highest performance in single-phase and two-phase heat transfer, respectively.

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A review of heat transfer enhancement techniques in plate heat exchangers

Humidification strategy for polymer electrolyte membrane fuel cells – A review

Defining the Influence Region in neighborhood-scale CFD simulations for natural ventilation design

Performance comparison between R410A and R32 multi-heat pumps with a sub-cooler vapor injection in the heating and cooling modes

Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system

Performance characteristics of an R600a household refrigeration cycle with a modified two-phase ejector for various ejector geometries and operating conditions

Performance comparison among two-phase, liquid, and vapor injection heat pumps with a scroll compressor using R410A

Evaporation heat transfer coefficient and pressure drop of R-1233zd(E) in a brazed plate heat exchanger

Dongwoo Kim

Papers

Performance comparison between R410A and R32 multi-heat pumps with a sub-cooler vapor injection in the heating and cooling modes

Thermal comfort and energy saving in a vehicle compartment using a localized air-conditioning system

Performance characteristics of an R600a household refrigeration cycle with a modified two-phase ejector for various ejector geometries and operating conditions

Performance comparison among two-phase, liquid, and vapor injection heat pumps with a scroll compressor using R410A

Evaporation heat transfer coefficient and pressure drop of R-1233zd(E) in a brazed plate heat exchanger