This paper shows the research work on heat exchanger using nano fluid. In this paper we are using compact heat exchanger as heat transferring device while Al2O3 as a nano fluid. The effect of the nano fluids on compact heat exchanger is analyzed by using ε –NTU rating numerical method on turbo-charged diesel engine of type TBD 232V-12 cross flow compact heat exchanger radiator with unmixed flui...

Due to the wide range of design possibilities, simple manufactured, low maintenance and low cost, cross-flow heat exchangers are extensively used in the petroleum, petrochemical, air conditioning, food storage, and others industries. In this paper a mathematical model for cross-flow heat exchangers with complex flow arrangements for determining ε-NTU relations is presented. The model is based o...

1 Fellow, ASME Abstract A semi-empirical model for conduction/convection in a thin “fin-like” porous wall of arbitrary composition and thickness is developed. The model assumes one-dimensional conduction in the porous matrix and one-dimensional flow of the coolant through the wall. Closed form solutions are obtained for a uniform composition and thickness porous wall having an insulated tip. An...

Hybrid materials based on graphitic carbon nitride (g-C3N4) and NTU-9 metal–organic frameworks (MOF) were designed prepared via solvothermal synthesis calcination in air. The as-prepared photocatalysts subsequently characterized using Brunauer–Emmett–Teller (BET) analysis, UV-Vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) emission spectroscopy, X-ray diffraction (XRD), photo...

Three values for non-transferable utility games – the Harsanyi NTU-value, the Shapley NTU-value, and the Maschler–Owen consistent NTU-value – are compared in a simple example.

This paper presents a mathematical model of heat pump exchangers and their thermal interaction with fan for an air dryer. The calculation algorithm developed the finned is based on ε-NTU method, allowing determination side refrigerant transfer coefficients, evaporator condenser capacity parameters at dehumidifier outlet known exchanger geometries, initial mass flow rate. was verified industrial...

Shell and tube heat exchangers are one of the most used exchanger types in applications it is important to predict transfer capacity pressure loss both design stage. Heat a can be enhanced by using tubes having surfaces instead smooth ones. In this study, usage corrugated shell investigated ε-NTU method, energy/exergy analysis. The impact on hot cold fluid outlet temperatures, efficiencies, ent...