In situ reaction studies of catalyst materials using closed-cell environmental specimen holders have been shown to allow atomic resolution to be obtained on e.g. catalyst materials, at elevated temperatures and pressures [1-4]. These holders incorporate MEMS-based devices into the holder tip, which serve to encapsulate a gas layer between a thin film heater device and an ultra-thin amorphous Si...

The regeneration process in saturated dehydrator after working to drying the gas dehydration unit Natural Gas Liquified Extraction (NGLE) plant. This is through heating by flowing into slowly (rump up temperature) until it reaches temperature,and then holding condition. Its condition accordance with engineering design and followed a rump down temperature which will be cooled ready for process. ...

A thermogenic organ is found beneath the brain of billfishes (Istiophoridae), swordfish (Xiphiidae) and the butterfly mackerel (Scombridae). The heater organ has been shown to warm the brain and eyes up to 14 degrees C above ambient water temperature. Heater cells are derived from extraocular muscle fibers and express a modified muscle phenotype with an extensive transverse-tubule (T-tubule) ne...

In the present article, heat transfer and fluid flow of air in a compact microchannel gas heater (MCGH) was experimentally quantified. To understand effect flux value (HFV), inlet velocity on coefficient (HTC), wall temperature, friction factor, Nusselt number, average pressure-drop (PDV) performance index (PI), constructed tested with pressurized air. The results showed that HTC 20 W/(sqmK) to...

We achieved separate detection of the components of 10 ppm of a benzene, toluene, and o-xylene mixture gas by using mesoporous silica powder incorporated in our microfluidic device. The device consists of concentration and detection cells formed of 3 cm x 1 cm Pyrex plates. We first introduced the mixture gas into the concentration cell where it was adsorbed on an adsorbent in a channel formed ...

E lectricity has particular importance in the national economy and providing socio-economic welfare. It is considered an essential infrastructure of the countries development. This is why the management of electricity consumption and the formulation of proper policies for it is very important for policy-makers. To do this successfully, it is necessary to identify energy consumption p...

the natural gas consumption in iran has been continuously increasing due to several reasons including low prices of natural gas, development of gas supply networks, people’s salary increase, incorrect consumption culture and the increase of national economy growth.  although, the global natural gas consumption has increased by 38% since 2001, the national consumption in iran has increased by 11...

This paper aims to determine emissions polluted directly and indirectly by an average person, for each household type, across a wide range of emissions. There are five household type categories: location, income decile, household composition, size and number of disabled residents. Ireland's Sustainable Development Model (ISus) is used which allows the analysis of direct and indirect sources of ...

The performance characteristics of a portable GC instrument requiring no compressed gas supplies and using relatively lightweight transportable components for the analysis of volatile organic components in large-volume air samples are described. To avoid the need for compressed gas tanks, ambient air is used as the carrier gas, and a vacuum pump is used to pull the carrier gas and injected samp...