SYNOPSIS
An alternative configuration for a regenerative gas turbine engine cycle is presented that yields higher cycle efficiencies than either simple or conventional regenerative cycles operating under the same conditions. The essence of the scheme is to preheat compressor discharge air with high temperature combustion gases before the latter are fully expanded across the turbine. The efficiency is improved because air enters the compressor at a higher temperature, and hence heat addition in the co ....etc

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Hi I am Al. :). I would like to get details on 3d solar cells seminar. I am right now quite interested with this topic. So I hope you could help me. ....etc

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Please give seminar for energy efficient motors ....etc

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haii ,
i want a simple seminar report about 'energy efficient motor' . it includes its theory , graphs, picture etc related to the topic .
sincerely and immediately post a seminar report and appropriate slides .

my email adress:[email protected] ....etc

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1. INTRODUCTION
Rocket engines that work much like an automobile engine are being developed at NASAâ„¢s Marshall Space Flight Center in Huntsville, Ala. Pulse detonation rocket engines offer a lightweight, low-cost alternative for space transportation. Pulse detonation rocket engine technology is being developed for upper stages that boost satellites to higher orbits. The advanced propulsion technology could also be used for lunar and planetary Landers and excursion vehicles that require throttle ....etc

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SOLAR CAR
Abstract
A solar car is a light weight, low power vehicle designed and built with a single purpose in mind - racing or raycing, a combination of race and ray from the sun. It has limited seating (one or two people) and cargo capacity, can only be driven during the day and does not represent a practical means of transportation. It does, however, offer an excellent opportunity to develop future technologies that can be applied to practical applications.
The car operate ....etc

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Abstract
Accurate analytical models of the output voltage andthe power efficiency of voltage doublers and PMOS charge pumpsare derived using dynamic charge transfer waveforms and chargebalance methods, respectively. Since the on-resistance of switchingdevices and the parasitic capacitance can be estimated precisely,the proposed models are more accurate than the other existingmodels. The model-generated values agree well with simulationsand measurements for these two charge pumps using 0.18 μmCMOS technology. The expressions for the ou ....etc

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Abstract.
Using piezoelectric elements to harvest energy from ambient vibrations has been of great interest over the past few years. Due to the relatively low power output of piezoelectric materials, energy storage devices are used to accumulate harvested energy for intermittent use. Piezoelectric energy harvesting circuits have two schemes: one-stage and two-stage energy harvesting. A one-stage energy harvesting scheme includes a conventional diode bridge rectifier and an energy storage device. In recent years, two-stage energy harvesting ci ....etc

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FUEL CELLS-Evolving Concepts and Developments

Introduction
Output of conventional batteries are limited.
They are polluting.
Continuous operation results in fall in efficiency.
Output not stable under long durations of operations.

Fuel Cells
An Electrochemical energy conversion device
Produces electricity from external fuel and oxidant.
Can operate virtually continuously as long as the necessary flows are maintained.

General Structure
Two electrodes sandwiched around an electrolyte
Hydro ....etc

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PREPARATION,CHARACTERISATION ENGINE PERFORMANCE AND EMISSION CHARACTERISTICS OF COCONUT-OIL BASED HYBRID FUELS

SEMINAR REPORT
Submitted by
KIRAN S
S7 M2
College Of Engineering, Trivandrum
2007-11 batch



Hi guys, If you like the report, don't forget to thank the author [email protected]

ABSTRACT

The double-pass solar collector with porous media in the lower channel provides a higher outlet temperature compared to the conventional single-pass collector. Ther ....etc

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INTRODUCTION
One is emerging from perhaps the most deliberate and least colourful engineering fields of all: gas turbine engineering. Gas turbines are internal combustion engines, like the ones that drive cars, except that they use a rotating shaft or rotor instead of pistons reciprocating in cylinders. This makes their operation smooth and steady, which lowers maintenance costs and increases reliability. Though they became practical only sixty years ago, today gas turbines are one of ....etc

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ABSTRACT
This paper deals with the study of OLED, its structural
details. OLEDs are light weight durable power efficient, and ideal for
portable applications. OLEDs have fewer process steps and also use both
fewer and low cost materials than LCD display. A feed back circuit for
OLED based display is proposed and demonstrated. A demonstration system
is built proving the feasibility of a flat panel display using direct
optical feed back. The demonstration system consists of a 5 x 5 array
of OLEDs, pixels ....etc

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