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136 articles for “hydrogen”
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Research ArticleOpen accessEvery word in the titleEvaluation of Hydrogen/Oxygen Release Compounds for the Remediation of VOCsS. Fiore, M.C. ZanettiProblem statement: Volatile Organic Compounds (VOCs) were widespread in groundwater of industrialized areas and in situ remediation intervents characterized by a high environmental compatibility were of main interest. The scope of this study was the evaluation of the potential of two innovative reagents (HRC and ORC from Regenesis) for the remediation of Volatile Organic Compounds (VOCs). The reagents respectively perform … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 4 Nov 2011 · 7,439 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRemoval of Hydrogen Sulphide from WaterS. Edwards, R. Alharthi, A.E. GhalyProblem statement: The concentration of H2S in groundwater is a significant problem in various areas across Canada. Hydrogen sulphide dissolves in ground water imparting undesirable taste and irritating rotten egg smell which makes it unpalatable. Ingestion of sulphides through drinking water can result in stomach discomfort, nausea and vomiting. Humans exposed to high concentrations of H2S for prolonged periods show … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 26 Aug 2011 · 15,123 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTransient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled EngineM. M. Rahman, Khalaf I. Hamada, M. M. Noor et al.Problem statement: The variation of the in-cylinder gas flow characteristics for single cylinder port injection hydrogen fueled internal combustion engine was investigated through transient state simulation. Approach: One dimensional gas dynamics was described the flow and heat transfer in the components of the engine model. Special attention is paid to selection and correction of heat transfer correlation which describe of … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 8,647 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePre-Feasibility Study of Hybrid Hydrogen Based Energy Systems for Coastal Residential ApplicationsMohd Zamri Ibrahim, Roziah Zailan, Marzuki Ismail, Abdul Majeed MuzathikProblem statement: The purpose of this study is to design a renewable energy hydrogen based power system to provide electricity to a coastal residential area in east coast area (Kuala Terengganu) of Malaysia. Approach: The selected case study represents a power demand of 20 kWh day-1. The autonomous system used in this study is diesel generator, wind and photovoltaic hybrid … …Energy Research Journal, Vol. 1, Issue 1 · 30 Jun 2010 · 7,825 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleIn-Cylinder Heat Transfer Characteristics of Hydrogen Fueled Engine: A Steady State ApproachM. M. Rahman, Khalaf I. Hamada, M. M. Noor et al.This study presents in-cylinder heat transfer characteristics of a single cylinder port injection Hydrogen fueled Internal Combustion Engine (H2ICE) using a steady state approach. Problem statement: The differences in characteristics between hydrogen and hydrocarbon fuels are led to the difference in the behavior of physical processes during engine cycle. One of these processes is the in-cylinder heat transfer. Approach: One … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 30 Apr 2010 · 7,428 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Nitrogen Source and Carbon to Nitrogen Ratio on Hydrogen Production using C. acetobutylicumMohd Sahaid Kalil, Hisham Salem Alshiyab, Wan Mohtar Wan YusoffProblem statement: One of the main factors influenced the bacterial productivity and total yield of hydrogen is the nitrogen source and its concentration. Approach: Using different nitrogen source with different concentration on bacterial productivity of hydrogen showed to affect on both bacterial productivity of hydrogen and biomass concentration. Results: Yeast extract as nitrogen source at concentration of 13 g L-1 … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 4 · 31 Dec 2009 · 7,837 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNumerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion EngineRosli A. Bakar, Mohammed K. Mohammed, M. M. RahmanThis study was focused on the engine performance of single cylinder hydrogen fueled port injection internal combustion engine. GT-Power was utilized to develop the model for port injection engine. One dimensional gas dynamics was represented the flow and heat transfer in the components of the engine model. The governing equations were introduced first, followed by the performance parameters and model … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,140 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Environmental Parameters on hydrogen Production using Clostridium Saccharoperbutylacetonicum N1-4(ATCC 13564)Walid M. Alalayah, Mohd Sahaid Kalil, Abdul Amir H. Kadhum et al.Problem statement: Hydrogen gas production by Clostridium can be improved by several ways through media formulation, or suitable environment condition. This study was carried out to investigate the environmental factors effects on hydrogen production using Clostridium saccharoperbutylacetonicum N1-4 (ATCC 13564). Approach: The environmental factor studied includes initial substrate concentration, initial medium pH, temperature, sparging nitrogen and addition of Fe2+. Results: … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 7,775 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHydrophobic, Polar and Hydrogen Bonding Based Drug-Receptor Interaction of TetrahydroimidazobenzodiazepinonesV.K. Sahu, A.K.R. Khan, R.K. Singh, P.P. SinghAnti-HIV drug discovery has been increasingly focusing on HIV-1-RT (reverse transcriptase) as a potential therapeutic target. Tetrahydroimidazobenzodiazepinone (TIBO) belongs to non-nucleoside group of reverse transcriptase inhibitors (NNRTIs). A computational chemistry study has been performed on a series of tetrahydroimidazo-benzodiazepinones as HIV-1-NNRT inhibitors. Problem statement: In order to search out new drug of desired activity from the lead compounds, there was … …American Journal of Immunology, Vol. 4, Issue 3 · 30 Sep 2008 · 8,837 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEquilibrium Adsorption of Hydrogen and Methane on 5A Molecular SieveHayder A. Abdul Bari, Abdul Halim A.K. Mohammed, Abbas K.M. Shua'ab, Rosli Bin Mohd. YunusAdsorption equilibrium isotherms of hydrogen and methane are reported for the temperature range 303-333 K and pressure up to 4 MPa. The adsorbent was 5A molecular sieve (supplied by Rhone Poulenc industries Ltd.). Experimental data were obtained using a static system for gas-solid adsorption. The Langmuir adsorption equilibrium equation gave excellent predictions. Adsorption of hydrogen and methane on 5A molecular … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 2 · 30 Jun 2008 · 7,389 accessesView PDFCite