Search Results - "Velraj, R."

Experimental investigation of the thermo-physical properties of water–ethylene glycol mixture based CNT nanofluids by Kumaresan, V., Velraj, R.

“…► The measured density data deviate from the well known mixing theory. ► The cp increases at 0.15vol.% and the trend decreases with further MWCNT addition. ►…”
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Development of candle soot dispersed phase change material for improving water generation potential of tubular solar distillation unit by Thakur, Amrit Kumar, Sathyamurthy, Ravishankar, Velraj, R.

“…Solar still is an economical device for purify brackish water, however its yield is low. Therefore, present work aims to increase the water output of tubular…”
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Experimental and numerical studies of thermal performance enhancement in the receiver part of solar parabolic trough collectors by Kumaresan, G., Sudhakar, P., Santosh, R., Velraj, R.

“…A solar collector is a device which helps to harnesses solar radiation into useful form of energy. Among various solar collectors, the parabolic trough…”
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Mixing strategies of high solids anaerobic co-digestion using food waste with sewage sludge for enhanced biogas production by Latha, K., Velraj, R., Shanmugam, P., Sivanesan, S.

“…Mixing strategies of high solids anaerobic digesters using food waste (FW), codigested with sewage treatment plant sludge (STP) was evaluated for green and…”
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Optimization of biodiesel production from Manilkara zapota (L.) seed oil using Taguchi method by Sathish Kumar, R., Sureshkumar, K., Velraj, R.

“…•Development of a new biodiesel from fruit seeds which is not yet reported in literatures.•Optimization of four major influencing parameters of…”
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Technological advancements in solar energy driven humidification-dehumidification desalination systems - A review by Santosh, R., Arunkumar, T., Velraj, R., Kumaresan, G.

“…Water scarcity has resulted in a pressing need to develop an inexpensive and efficient desalination technology for fresh water production, especially in…”
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Mitigation of NOx emissions from a jatropha biodiesel fuelled DI diesel engine using antioxidant additives by Varatharajan, K., Cheralathan, M., Velraj, R.

“…► Antioxidants can be used to control NOx emissions from biodiesel fuelled engines. ► The additive p-phenylenediamine is effective in controlling biodiesel NOx…”
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Review of leaf drying: Mechanism and influencing parameters, drying methods, nutrient preservation, and mathematical models by Babu, A.K., Kumaresan, G., Raj, V. Antony Aroul, Velraj, R.

“…Fresh leaves used for culinary and medicinal purposes are highly perishable by nature. Quite often, post-harvest losses occur and there is noticeable…”
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A 50 year review of basic and applied research in compound parabolic concentrating solar thermal collector for domestic and industrial applications by Pranesh, V., Velraj, R., Christopher, S., Kumaresan, V.

“…[Display omitted] In the recent years, compound parabolic concentrating (CPC) collector draws the attention of researchers and industrial developers towards…”
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Enhanced heat transfer characteristics of water based copper oxide nanofluid PCM (phase change material) in a spherical capsule during solidification for energy efficient cool thermal storage system by Chandrasekaran, P., Cheralathan, M., Kumaresan, V., Velraj, R.

“…The present study aims to investigate the solidification characteristics of water based NFPCM (nanofluid phase change material). The NFPCM was prepared by…”
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Review on free cooling of buildings using phase change materials by Raj, V. Antony Aroul, Velraj, R.

“…The concept of Green building is gaining importance in the present energy scenario and related environmental issues. Free cooling or ventilation cooling is…”
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Effect of double layer phase change material in building roof for year round thermal management by Pasupathy, A., Velraj, R.

“…Efficient and economical technology that can be used to store large amounts of heat or cold in a definite volume is the subject of research for a long time…”
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A review of efficient high productivity solar stills by Arunkumar, T., Raj, Kaiwalya, Dsilva Winfred Rufuss, D., Denkenberger, David, Tingting, Guo, Xuan, Li, Velraj, R.

“…Fresh water is an indispensable resource, which is getting contaminated. The shortage of freshwater has been identified as a crucial issue all around the…”
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Effect of nano-coated CuO absorbers with PVA sponges in solar water desalting system by Arunkumar, T., Murugesan, D., Raj, Kaiwalya, Denkenberger, David, Viswanathan, C., Rufuss, D. Dsilva Winfred, Velraj, R.

“…•CuO nanoparticles were synthesized by the thermal evaporation technique.•CuO nano coated absorber plates tested in the basin of the solar still.•CuO nano…”
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Numerical investigation of packed bed storage unit filled with PCM encapsulated spherical containers – A comparison between various mathematical models by Karthikeyan, S., Velraj, R.

“…There are several methods adopted by the scientists in modeling the heat transfer phenomenon during solid–liquid phase change. However, the validity of the…”
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The contribution of dry indoor built environment on the spread of Coronavirus: Data from various Indian states by V, Antony Aroul Raj, R, Velraj, Haghighat, Fariborz

“…•Proposed a mechanism of virus spread in various climates & built indoor conditions.•Fast drying and size reduction of respiratory droplets makes the virus…”
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Synergetic effect of absorber and condenser nano-coating on evaporation and thermal performance of solar distillation unit for clean water production by Thakur, Amrit Kumar, Sathyamurthy, Ravishankar, Velraj, R., Saidur, R., Lynch, Iseult, Chaturvedi, Meenakshi, Sharshir, Swellam W.

“…Two design modifications to increase the evaporation/condensation and freshwater yield of conventional solar stills (CSS) are presented – absorber coating with…”
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Experimental studies on solidification and subcooling characteristics of water-based phase change material (PCM) in a spherical encapsulation for cool thermal energy storage applications by Vikram, M. Ponrajan, Kumaresan, V., Christopher, S., Velraj, R.

“…•Subcooling of DI water reduced from −5.4 °C to −2.8 °C with dispersion of sodium chloride and D-sorbitol.•Reduction of subcooling would be beneficial to…”
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Phase change material-based building architecture for thermal management in residential and commercial establishments by Pasupathy, A., Velraj, R., Seeniraj, R.V.

“…Efficient and economical technology that can be used to store large amounts of heat or cold in a definite volume is the subject of research for a long time…”
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Performance and exhaust emission characteristics of a CI engine fueled with Pongamia pinnata methyl ester (PPME) and its blends with diesel by Sureshkumar, K., Velraj, R., Ganesan, R.

“…Transport vehicles greatly pollute the environment through emissions such as CO, CO 2, NO x , SO x , unburnt or partially burnt HC and particulate emissions…”
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