One of the most practical means of measuring this important variable is by the temperature of the boiling syrup at a known absolute pressure or by reference to the temperature of water boiling at the same pressure. The so-called “Boiling Point Elevation” or “BPE” has long been used for this purpose. A considerable amount of care must be exercised in making the temperature measurements if they a...

This paper presents a new numerical model, called the CAS model, for boiling heat transfer. The CAS model is based on the cellular automata (CA) technique that is integrated into the popular SIMPLER algorithm for CFD problems. In the model, the CA technique deals with the microscopic nonlinear dynamic interactions of bubbles while the traditional CFD algorithm is used to determine macroscopic s...

This work describes an improved design for a nuclear fuel rod, which was developed using an experimental circuit that simulates the nuclear rod environment in a pressurized water reactor (PWR). The heat exchanger circuit runs atmospheric to high-pressure boiling water through an annular finned tube (153 fins), which is used to enhance confined heat transfer rates and guide the nucleate boiling ...

Nucleate pool boiling heat transfer coefficients of Al2O3-water and TiO2-water nanofluids have been experimentally measured on three horizontal tubes with different materials and similar roughness under atmospheric pressure. Results revealed that the presence of nanoparticles in the base fluid leads to an increase in pool boiling heat transfer coefficients on stainless steel and brass tubes in ...

A high power electronic chip was simulated experimentally to investigate upper cooling capabilities using a variety of pool boiling enhancement techniques. Parametric effects of system pressure, subcooling, surface augmentation, and choice of coolant on boiling heat transfer from a vertical 12.7'x 12.7 mm flat surface were examined. The two fluorocarbon coolants tested, FC-72 and FC-87, resulte...

Solvent is one of the important components in chemical processes. The type solvent that often used paint and coating industry a hydrocarbon-based which consists diverse complex mixture liquids contains aliphatic, alicyclic aromatic (C5-C8) elements. Aromatic hydrocarbons are environmental pollutants known to be toxic, carcinogenic mutagenic, so with an content less than 1% needed. An appropriat...

Researchers have attested that oils of ester are biodegradable and environmentally friendly when compared to petroleum transformer lubrication insulation oils. These benefits inspired us explore the possibility using refined luffa cylindrica seed oil (RLSO) as substitute source for oil. To authenticate its suitability, it is imperative make a comparism electrical physicochemical properties with...

Abstract This paper attempts to identify a crude oil (CO) from eight different CO samples with wide range of o API gravity 13 43 belonging Upper Assam Basin, India, formulate the identified for pipeline transportation. Studies were conducted understand physical, rheological, and viscoelastic properties where physical included pour point (PP) gravity, rheological viscosity (η), kinematic (K.V.),...

Two-phase expansion is the process where a fluid undergoes pressure drop through or in liquid–vapor dome. This operation was historically avoided. However, currently it studied for multitude of processes. Due to volume increase volumetric expanders, occurs resulting flashing phenomena occurring. These have been before other processes such as two-phase flows static flash. this has not extensivel...