In addition, when the input temperature of nanofluid flowing into MCHE was lower, the mass flow rate had a greater effect on the overall heat transfer coefficient ratio than concentration.
It was found that the cogeneration systems have good performance, with energy and exergy efficiencies of ∼28% and 55 60%, respectively, for the base-case studied (at maximum heat input temperature of 450 °C).
The results of the improved design implemented on the reliquefaction plant for LNG tank conditions of -160.82 °C, a plant BOG input temperature of −125 °C and 25 °C seawater, give COP values of 0.22 and an exergetic efficiency of 37%, such values being 22.22% and 19.35% greater than the original design.
This set-up was validated for the relevant range of blood and injectate temperatures by comparison of input temperatures with the temperatures read and stored by the PiCCO2™ device.
c p. ( t s - t e ) A. F. Δ T m, (2 where m is the flow mass of the cold fluid (the crude oil), CP is the heat-storage capacity, te and ts are the output and input temperatures, respectively, A the external surface of heat transfer (F ΔTm) the difference in the logarithmic temperature; and US is the total of heat transfer coefficients brought back to external surface.
The 3D computational model uses as inputs: pressure, temperature of the gas, type of gas and geometry of the pump.
In a recent work, Kumar et al. have presented design and modeling of an intelligent temperature to frequency converter (TFC) for thermistor in the input temperature range of 0 100 °C [1].
Furthermore, the maximum cooling load and the corresponding coefficient of performance, the minimum power input and the optimally operating temperatures of the cyclic working substance are obtained.
