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Tuesday, 10 April 2018

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Project report: The Design And Construction Of A Mechanical Vibrating System And Energy scavenging from Vibrations

charging circuit



ABSTRACT

The process of acquiring the energy surrounding a system and converting it into usable electrical energy is termed as power   harvesting. 

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Monday, 2 April 2018

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PROJECT: EFFECTS OF OPERATING VARIABLES, KINETICS AND THERMODYNAMICS STUDIES


EXTRACTION OF OIL FROM MANGO SEEDS: 
EFFECTS OF OPERATING VARIABLES, KINETICS AND THERMODYNAMICS STUDIES

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Project: Extraction of Essentials oils of formulation of citrus-scent perfume.



FORMULATION OF CITRUS SCENT PERFUME FROM LEMONGRASS AND ORANGE EXTRACTED ESSENTIAL OILS. 

INTRODUCTION


BACKGROUND OF STUDY

Perfume is a fragrant liquid made from an extract that has been distilled in alcohol and water. Traditional perfumes were made from plant and animal substances and prepared in the form of water, oils, unguents, powders and incense. A perfume must contain over 15% of fragrance oils in alcohol (Herman, 2013). Techniques involved in perfume extraction from plants include; solvent extraction, distillation, expression, enfleurage method. These methods to a certain extent, distort the odor of the aromatic compounds that are obtained from the raw materials. The  important thing in relation to perfume making is that there are three basic key ingredients needed to produce perfumes; essential oils (these have been extracted from various plants (organic or nonorganic) and when combined give the smell of the perfume,alcohol(which helps in dispersion) and distilled water/carrier oil (merriam-webster 1828).
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Saturday, 16 September 2017

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Design And Construction Of 2kva Pure Sine Wave Inverter

INVERTER




INTRODUCTION


An inverter is a device that changes D.C. voltage into A.C. voltage. A direct current (D.C) is a current that flows in only one direction, while an alternating current (A.C.) is that which flows in both positive and negative directions. Inverters are used to operate electrical equipment from the power produced by a car or boat battery or renewable energy sources, like solar panels or wind turbines. DC power is what batteries store, while AC power is what most electrical appliances need to run. So, an inverter is necessary to convert the power into a usable form.

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