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Showing 1 to 20 of 74 for “"LPG"”.
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Investigating the performance and emission characteristics of diesel-LPG engine operation
… with diesel and liquefied petroleum gas (LPG). The aim of this research is to numerically investigate the performance and emission characteristics associated with dual fuel engine operation (wherein LPG and diesel fuels are simultaneously used) with regards to the diesel engine operation …
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Combustion characteristics of a spark ignition engine operating with liquid lpg injection
… combustion engines. Liquefied petroleum gas (LPG) is one of the most popular alternative fuels for spark ignition (SI) engines that received lots of attention due to its availability and acknowledged superior properties than gasoline. However, detail analysis on latest technology of liquid LPG …
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Design and characterisation of long period grating (LPG) - based optical fibre sensors for acoustic wave detection
… of optical fibre sensors, long period gratings (LPGs) have shown a high sensitivity to a number of parameters, including temperature, strain, refractive index and bending, therefore they have been explored widely for a range of potential sensing applications. This thesis is focused on the design, …
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Performances of a Spark Ignition (SI) engine fuelled with Liquefied Petroleum Gas (LPG) using Liquid Sequential Injection (LSI) technique
… of alternative fuel is Liquefied Petroleum Gas (LPG). LPG has a research octane number higher than gasoline and low carbon to hydrogen ratio content, thus the LPG has the potential to give more power in SI engines and to reduce exhaust emissions. An experimental work was conducted on a 1.6 …
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An investigation into the demand for illuminating paraffin and liquid petroleum gas in South Africa
… Paraffin (IP) and Liquid Petroleum Gas (LPG) in South Africa, and also tests the energy transition theory. The energy transition process outlines the substitution of fuels that occurs with rural-urban migration. Data on income, IP and LPG prices, demographic trends and IP and LPG volumes …
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Fiber-Optic Sensors for Fully-Distributed Physical, Chemical and Biological Measurement
… based on a traveling long-period grating (T-LPG) in a single-mode fiber. The T-LPG is generated by pulsed acoustic waves that propagate along the fiber. When there are changes in the fiber surrounding medium or in the fiber surface coating, induced by various physical, chemical or biological …
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Modelling of optical fibre long-period grafting sensors.
… model of the long-period fibre grating (LPG) sensor has been developed. Numerical simulation of the LPG transmission spectrum behavior is studied when changing the refractive index of the ambient. The attenuation bands are seen to shift to shorter wavelengths as the surrounding index is …
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Autoignition and flame speed of premixed liquefied petroleum gas in a rapid compression machine: experimental results and reduced chemical kinetic mechanism
Liquefied petroleum gas (LPG) has many properties that make it an attractive alternative fuel such as lower cost than conventional fuels and an established distribution infrastructure. The development of high efficiency, spark ignited LPG engines is currently limited by engine knock and misfire. …
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Strategic design for imported liquefied petroleum gas distribution systems in East China
… principles represent the pillars that make a LPG company competitive. It was concluded that an effective logistic system as well as good risk management help a LPG company success in China. China has become a formal member of the World Trade Organization but China is still a communist country. …
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Investigation of co1-2xnixmnxceyfe2-yo4 double-substitution spinel for highly efficient detection of flammable and hazardous liquefied petroleum gas: sensing performance
… of 225 ºC towards liquefied petroleum gas (LPG), ammonia, ethanol and propanol using nitrogen, argon, helium, and dry air, each at different times as carrier gases. The Co0.8Ni0.1Mn0.1Fe1.9Ce0.1O4-based sensor was selective to LPG, with a high response of 116.43 towards 0.6 vol % of LPG, …
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Development of a robot localization and environment mapping system
… for use in a robotic liquefied petroleum gas (LPG) tank inspection system. Inspecting large LPG tanks for defects is difficult, expensive and energy intensive. Replacing the human inspectors with a robotic inspection system will make the inspection process faster, less expensive, more reliable …
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Long period fibre grating as gas sensor for environmental pollution monitoring.
… the inherent properties of long-period gratings (LPGs) to detect the existence and concentration of a given gas in the region immediately surrounding the fibre cladding. The principle and the viability of using LPGs for sensor applications is supported by the preliminary results reported here. …
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Ionic Self-Assembled Multilayers Adsorbed on Long Period Fiber Gratings for Use as Biosensors
… (ISAMs) adsorbed on Long Period Fiber Gratings (LPGs) provides an attractive platform for building optical sensors, which could potentially overcome the disadvantages of SPR biosensors. The ISAM technique is a type of layer-by-layer deposition technique for building nanoscale thin films. An LPG …
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Connecting the Nodes. How Social Capital Enhances Local Public Goods' Provision in Shantytowns.
… and the provision of Local Public Goods (LPG) is quite relevant and requires further study. </p><p>This dissertation explains the variation in infrastructure and public services in shantytowns as a function of social capital. Well-connected communities --with stronger ties among its …
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Comparative of Flammable and Toxic Gas Sensing behavior for Rare-Earth Elements Substituted Cobalt based Spinel Ferrites
… to integrative liquefied petroleum gases (LPG). A high response of over 730 was recorded towards 1 vol% (or 10 000 ppm) of LPG at 225 °C. The CoSm0.1Fe1.9O4 nano-ferrite meets the criteria of a potential sensor of being highly sensitive and selective with repeatability and stability that …
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Numerical Analysis of Optically-induced Long-period Fiber Gratings for Sensing Applications
Long-period fiber gratings (LPGs) with a period ranging from several hundred micrometers to a few millimeters can couple a core mode to discrete co-propagating cladding modes when the phase matching condition is satisfied. The rapid attenuation of cladding modes results in loss bands in the …
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Fabrication of intensity-based Long-Period-Gratings fiber sensor with CO2 Laser
… procedures for producing long period grating (LPG) fiber sensors with point-by-point irradiation under a CO2 laser beam. The type of fiber sensor under examination is desirable to be highly sensitive to the variation of the thickness and refractive index of a thin film deposited on the LPGs, …
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Corrosion detection using metal coatings on fiber optic sensors
… (AEFPI), and the long period grating (LPG) fiber optic sensor. The corrosion monitoring technique used with the EFPI and AEFPI sensors exploits the ability of a thick coating of metal to maintain strain information in fiber optic strain sensors. The sensors are placed under tensile …
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Estudo do papel do lpg2 na migração de células dendríticas infectadas por Leishmania infantum
… the importance of Leishmania lipophosphoglycan (LPG) in the interaction with host cells, the parasite's survival mechanisms, and the establishment of infection. However, the relationship between LPG and dendritic cell migration remains to be elucidated, considering that these cells are …
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Sensitivity control of optical fiber biosensors utilizing turnaround point long period gratings with self-assembled polymer coatings
… (ISAMs) adsorbed on Long Period Gratings (LPGs) can serve as a highly sensitive, robust, inexpensive optical-based biosensor platform. The ISAM technique is a layer-by-layer deposition method that builds nanometer-thick films based on the principle of Coulomb attraction between oppositely …
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