natural convection heat transfer from a tube bundle in the indirect water bath heaters is investigated. a computer-code is used for the solution of the governing equations of mass, momentum and energy transfer based on the simple-c algorithm. simulations are carried out for the gas pressure station heater of kermanshah city with various tube bundle arrangements. in order to validate the numeric...

Natural convection heat transfer from a tube bundle in the indirect water bath heaters is investigated. A computer-code is used for the solution of the governing equations of mass, momentum and energy transfer based on the SIMPLE-C algorithm. Simulations are carried out for the gas pressure station heater of Kermanshah city with various tube bundle arrangements. In order to validate the numeric...

Gas industry as one of the greatest sectors energy, has a major role in environmental issues. A category energy intensive parts gas is heaters City Gate Stations which consume colossal volumes purified gases. Different optimization strategies to improve efficiency these entailing preheating, waste heat recovery exhausts, insulating pipelines and mounting economizers or recuperators even using r...

Nanofluids are engineered fluids that contain a suspension of nanoparticles in a pure substance. Nanoparticles can be any variety of metals, metal oxides, or ceramics. They have been shown to increase heat transfer properties such as thermal conductivity, convective heat transfer, and critical heat flux(CHF). An optical probe used to detect phase was used to measure the void fraction during boi...

The gas pressure in the main network of transmission lines is about 700 to 1000 psi (4826.33 6894.76 kPa), which reduced 250 (1723.69 kPa) at entrance station a city. This reduction process, occurs regulator, causes severe drop temperature. temperature produces hydrates and even water vapor freeze. As result, there possibility that passage regulator blocked flow cut off. By employing heaters (i...

This article describes about an instrument and method for aroma based quality detection of Basmati and other aromatic rice varieties. It comprises few modules such as odour delivery module, sniffing module, water bath module and computing module. Odour handling module helps to deliver odour to the sensor array; a sniffing unit comprising a sensor array module that includes a eight number of met...

This paper investigates how to develop a learning-based demand response approach for electric water heater in a smart home that can minimize the energy cost of the water heater while meeting the comfort requirements of energy consumers. First, a learning-based, data-driven model of an electric water heater is developed by using a nonlinear autoregressive network with external input (NARX) using...