far more general compared to the traditional approaches, providing the designer the flexibility to select the efficiency of the individual heat exchangers, the overall system efficiency, the number of heat exchangers, as well as the type of heat exchanger to select, by utilizing a single equation....
It is a new technology for heat exchanger application for which very high efficiency has been claimed. Several concerns have been identified regarding this type of IHX concept. The pressure losses induced by the foam are particularly high. Loss of small fragments of the foam is hardly avoidable...
a better heat exchanger provides the least amount of entropy. By studying entropy generation, a method for finding the ideal fin design and reducing energy loss in a thermal system has been developed22. Entropy production in nanofluids has also been studied...
et al. Improve the heat exchanger efficiency via examine the Graphene Oxide nanoparticles: a comprehensive study of the preparation and stability, predict the thermal conductivity and rheological properties, convection heat transfer and pressure drop. J Therm Anal Calorim 147, 7509–7521 (2022). ...
The configuration of the pile foundation ground heat exchanger can be classified as U-type and spiral-type. Zarrella et al. [151] investigated a thermal response test on a pile foundation ground heat exchanger (20 m in depth) with a double U-tube circuit to determine the ground’s therma...
The evaporator has a heat exchanger tube positioned for generally horizontal flow of the working fluid therethrough. An inlet header is connected to a lower surface of an end region of the tube. An outlet header with a plurality of risers is positioned for generally vertical flow of the ...
The main weakness of the deep borehole heat exchanger is a low efficiency in heat recovery compared to a conventional geothermal technology. This is due to the lower mass flow rate and to the indirect exchange of heat, which causes a lower wellhead temperature. However, the use of a WBHX ...
The recuperated TLC attains the highest thermodynamic efficiency at the cycle high temperature because of its lowest exergy destruction rates in the heat exchanger and condenser. The efficiency analysis carried out would assist in guiding thermodynamic process development and thermal integration of the ...
Table 3.5 gives some typical cases of fouling coefficient; if the heat exchanger is new, the fouling coefficient is 0. (LAλ)c is the effective conductive resistance of the plate. η0 is the total surface efficiency of the rib. No matter whether it is the hot or cold side, it can be...
The inclusion of a PCM heat exchanger and a recuperating heat exchanger reduced the overall mass by 36% while providing increased reliability and system efficiency. For purpose of Heat Pipe Heat Exchanger (HPHX), Some other modeling techniques include using a complex model where you model the ...