VW Engineering International

Abstract: Focus on Basic introduction to antenna and its parameters and their overview.Focuses on Literature review regarding multiband, wideband as well as ultrawideband and...

In a densely populated country like India, there is a lot of building construction happening daily and people due to a lack of awareness and information always tend to use simple, cheaper, and easily available window glazing which is less energy efficient, this happens due to the technology gap and lack of comparative analysis of different types window glazing. This study examines how different window glazing perform when it comes to changes in solar gains, embodied carbon content, heating and cooling loads as a result of the physical and optical characteristics of conventional windows and advanced window technologies with the help of computer simulations using building energy modeling in DesignBuilder software. The primary goal of this paper is to provide engineers with a comparative analysis of a wide range of window glazing and suggest the optimum case in which there is reduced decooling and heating loads for a given space along with the amount solar gain into the building's interior making the building’s energy efficient and reduce the carbon footprint that helps in earning carbon credits which will further reduce cost and payback period. The simulations and analysis are done for the composite climate of Roorkee, India.

The demand for sustainable and efficient energy solutions has never been more pressing as the world faces the challenges of climate change and a growing energy demand. Thermal energy storage (TES) emerges as a crucial component of the energy transition, offering the potential to enhance energy efficiency, reduce greenhouse gas emissions, and facilitate the integration of renewable energy sources into the grid. This comprehensive review delves into the various aspects of thermal energy storage, covering its fundamental principles, types, applications, advantages, challenges, and future prospects. By exploring the latest developments and research in the field, we aim to provide a holistic understanding of TES and its role in the global energy landscape.

The diesel engine is one of the most widely employed units for power generation and it alone consumes a large amount of entire petroleum. On the other hand, it is the major contributor of particulate matter (PM) emission into the outdoor environment. Particulate matter (PM) is the amalgamation of different particles with liquid droplets and can be generated directly from the source or can be formed through atmospheric chemistry. Particulate matter (PM) generation is harmful to human health in numerous ways discussed in this paper. There is no threshold limit for particulate matter (PM) exposure for human beings. However different organizations such as US EPA and ASHRAE have set limits for acceptable concentration of particulate matter (PM) exposure.

In this research work, our emphasis is laid on the employment of rubber tire aggregates( 5% min & 15% max) by partially replacing the coarser rock aggregates in plain cement concrete in the case of rigid pavements. To get the maximum possible outcome it is very much advised to treat the rubber tire aggregate surface with NaOH and cement paste, before using them with M20 concrete mix. Using untreated rubber it was noticed that the overall compressive strength of the concrete mix had a rapid dip but when treated rubber was employed the overall 28-day compressive strength of the mix showed more than a 90% increase, which is quite satisfactory, considering the availability of used tire rubber at ease and cheap rates furthermore its employment reducing the amount of hazardous threat it can pose to the environment. Such an amount of compressive strength is accepted as quite satisfactory for treated rubberized tires, e.g. in the case of floor construction and concrete pavements where the compressive strength is not of so much importance. It was found that the flexural and split tensile strength is higher than the normal concrete but only when the rubber was treated with NaOH and cement paste. However, the workability had a certain dip, flexibility shows awesome increment, and the resultant mix is lighter than the concrete mix because of the light weight of rubber particles. Such enhancement in the properties like compressive strength, split and flexural strength, lightweight, high impact, toughness resistance, etc. can be helpful in the employment of this concrete in various civil engineering works.