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TL;DR: In this article, the authors reviewed various buildings at different places, whose LCA has been performed and to see that which phase of the life cycle of building and which type of building consumes more energy and has more greenhouse gas (GHG) emissions.
Abstract: Sustainable development requires methods and tools to measure and compare the environmental impacts of human activities for various products (goods and services). Providing society with goods and services contribute to a wide range of environmental impacts. Environmental impacts include emissions into the environment and the consumption of resources as well as other inventions such as land use etc. In order to create an environmentally-conscious building, the environmental impacts of entire service life must be known. The aim of this study is to review various buildings at different places, whose LCA has been performed and to see that which phase of the life cycle of building and which type of building consumes more energy and have more greenhouse gas (GHG) emissions. It has been observed that operational phase alone contributes more than 50% to GHG emissions and is highest energy consumer (80–85%) which is a matter of concern and cannot be ignored. Now there is a need for some alternative ways to design buildings for a sustainable future.
408 citations
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TL;DR: In this paper, the performance and emission of biodiesel from different feedstock was analyzed and the results of the study showed that different chemical compositions of different biodiesel based upon their origin lead to variation in their properties and performance and emissions characteristics.
Abstract: Alarming situation of world energy stimulated the researchers to look for new sources of fuel, which must be renewable, locally available and environmentally benign In this regard, the significance of biodiesel as technically and commercially viable alternative to fossil-diesel has led to intense research in the field Biodiesel is made from different feedstock depending on the availability This paper analyzes the performance and emission of biodiesel from different feedstock The main advantage of biodiesel is that it potentially reduces the key pollutants, carbon monoxide, unburnt hydrocarbons and particulate matters While several researchers have looked at the impact of biodiesel on these pollutants, only few publications discussed the effect of fatty acid composition on performance and emission characteristics An attempt has been carried out to discuss the effect of biodiesel in terms of performance and emissions based upon composition and properties of the respective biodiesel The results of the study show that different chemical compositions of biodiesel based upon their origin lead to variation in their properties and performance and emission characteristics Biodiesel produced from saturated feedstock reduce NOx emission and resistive to oxidation but exhibit poor atomization However, many further research needs to be carried out to understand the relationship between the type of biodiesel feedstock and performance and emission
229 citations
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TL;DR: In this paper, an attempt has been made to review on element geometries used as artificial roughness in solar air heaters in order to improve the heat transfer capability of solar air heater ducts.
203 citations
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TL;DR: In this paper, an extensive survey of concepts, techniques, approaches and suitability of various commercialised rapid casting (RC) solutions with traditional casting methods is presented, as well as relevant case studies and examples explaining the suitability and problems of using RC solutions by various manufacturers and researchers.
Abstract: Purpose – This paper seeks to review the industrial applications of state‐of‐the‐art additive manufacturing (AM) techniques in metal casting technology. An extensive survey of concepts, techniques, approaches and suitability of various commercialised rapid casting (RC) solutions with traditional casting methods is presented.Design/methodology/approach – The tooling required for producing metal casting such as fabrication of patterns, cores and moulds with RC directly by using different approaches are presented and evaluated. Relevant case studies and examples explaining the suitability and problems of using RC solutions by various manufacturers and researchers are also presented.Findings – Latest research to optimize the current RC solutions, and new inventions in processing techniques and materials in RC performed by researchers worldwide are also discussed. The discussion regarding the benefits of RC solutions to foundrymen, and challenges to produce accurate and cost‐effective RC amongst AM manufacture...
155 citations
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TL;DR: In this article, a comparison of effective efficiency of solar air heaters having different types of geometry of roughness elements on the absorber plate is presented, based on the correlations for heat transfer and friction factor developed by various investigators within the investigated range of operating and system parameters.
127 citations
Authors
Showing all 111 results
Name | H-index | Papers | Citations |
---|---|---|---|
Varun | 35 | 81 | 4901 |
Harish Venu | 22 | 43 | 1486 |
Manickam Ravichandran | 21 | 119 | 1548 |
Pramod Kumar Bhatnagar | 14 | 52 | 621 |
V. Dhinakaran | 13 | 81 | 623 |
Abhishek Saxena | 12 | 30 | 974 |
Shyam Lal | 12 | 61 | 624 |
M.K. Mittal | 11 | 27 | 509 |
Vineet Tirth | 10 | 64 | 301 |
Niraj Kumar | 10 | 26 | 710 |
B. R. Ramesh Bapu | 9 | 40 | 445 |
Nitin Kumar Saxena | 8 | 30 | 193 |
Kshitij Shinghal | 7 | 38 | 245 |
S. Ravi | 6 | 31 | 244 |
Nitin Agarwal | 6 | 14 | 225 |