Anand C

"Fuel Efficiency Improvement by Using Acetylene Powered Engine" explores the potential of acetylene as an alternative fuel to enhance engine efficiency and reduce emissions. Acetylene, produced from calcium carbide and water, offers cleaner combustion with lower carbon emissions. The book discusses engine modifications, safety measures, and dual-fuel strategies to optimize performance. Experimental results show improved fuel efficiency and extended runtime compared to petrol. While infrastructure and safety challenges exist, research into direct injection and HCCI techniques aims to overcome them. With continued development, acetylene could become a viable, sustainable alternative to fossil fuels, reducing environmental impact and fuel dependency.

The book Analytical and Numerical Analysis of Thermosyphon explores the thermal performance of thermosyphon heat exchangers using computational fluid dynamics (CFD) simulations in ANSYS Fluent. It provides an in-depth study of heat pipes, their principles, types, and industrial applications, with a focus on evaporation and condensation processes. The research investigates the impact of different fill ratios (30%, 50%, and 70%) of water as the working fluid on heat transfer efficiency. Using the Volume of Fluid (VOF) method, the CFD model visualizes phase transitions and heat flow, revealing that a 50% fill ratio offers optimal performance, balancing evaporation and condensation while avoiding dry-out or flooding issues. The findings emphasize the effectiveness of CFD in accurately predicting thermosyphon behavior, reducing the need for experimental testing, and contributing to the optimization of heat pipe designs for applications such as electronics cooling, HVAC systems, and industrial heat recovery.

A asa delta comprovadamente adequada para voos subs nicos e supers nicos de alta velocidade. Por outro lado, oferece vantagens estruturais e carater sticas aerodin micas nicas. Ao longo dos anos, foram desenvolvidas muitas varia es de design com e sem superf cies estabilizadoras adicionais. O principal objetivo do projeto determinar a quantidade de energia utilizada neste escoamento em fun o do coeficiente de sustenta o e de outros factores. N o s os valores experimentais, mas tamb m as simula es CFD com CATIA e ANSYS devem ser registados. Aqui temos duas modifica es. A primeira modifica o com 6 ranhuras e a outra com 8 ranhuras. Cada ranhura medida em 6x2mm. Assim, com base no desempenho dos ca as, estas formas s o incrementadas com refer ncia a todos os resumos. A compara o de todos estes resultados permite concluir se eficaz e se poss vel desenvolver um projeto real com estas modifica es da borda de ataque.

Udowodniono, że skrzydlo Delta nadaje się do lot w z dużą prędkością poddźwiękową i naddźwiękową. Z drugiej strony zapewnia unikalne zalety strukturalne i wlaściwości aerodynamiczne. Na przestrzeni lat powstalo wiele wariant w konstrukcyjnych, zar wno z dodatkowymi powierzchniami stabilizującymi, jak i bez nich. Gl wnym celem projektu jest ustalenie, ile energii jest wykorzystywane w tym przeplywie w odniesieniu do wsp lczynnika sily nośnej i innych czynnik w. Nie tylko znalezienie wartości eksperymentalnych wraz z symulacjami CFD za pomocą CATIA i ANSYS ma zostac zarejestrowane. Mamy tutaj dwie modyfikacje. Pierwsza modyfikacja obejmuje 6 szczelin, a druga 8 szczelin. Każda szczelina ma wymiary 6x2 mm. Tak więc w oparciu o wydajnośc myśliwc w ksztalty te są zwiększane w odniesieniu do wszystkich podsumowań. Por wnując wszystkie te wyniki, należy stwierdzic, czy jest to efektywne i czy można opracowac rzeczywisty projekt z tymi modyfikacjami krawędzi natarcia.

Delta wing is proved to be suitable for high speed subsonic and supersonic flights. At the other end it gives unique structural advantages and aerodynamic characteristics. Many design variation has been evolved over the years within and without additional stabilizing surfaces. The main aim of the Project is to find how much energy is utilized in this flow with respect to the lift coefficient and other factors. Not only finding the experimental values along with those CFD simulations with CATIA and ANSYS are to be recorded. Here we have two modification. The first modification are with 6 slots and the other with 8 slots. Each slots are measured to be in 6x2mm. So based on the performance of the fighters these shapes are incremented with reference to all the summaries. By comparing all these results and it is to be concluded whether if it is efficient and real life design can be evolved with these leading edge modification.

Chrysanthemum (Chrysanthemum grandiflorum Ramat.) is one of the most economically important flower crop cultivated for aesthetic and medicinal purposes. Among the diseases, wilt of chrysanthemum incited by Fusarium oxysporum f. sp. chrysanthemi is the recent outbreak of disease in the chrysanthemum growing areas of Tamil Nadu. Studies were conducted on the variations of different Fusarium oxysporum f. sp. chrysanthemi isolates regarding morphological and cultural characters. Besides, studies on the management of the disease using antagonistic organisms, organic amendments and bio inoculants were also carried out