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Gupta S.,Haryana Institute of Engineering and Technology | Tewari P.C.,National Institute of Technology Kurukshetra
International Journal of Reliability, Quality and Safety Engineering | Year: 2010

The present paper deals with the opportunities for the availability predictive modeling of a thermal plant using Markov process and probabilistic approach. These opportunities will be identified by evaluation of a predictive model to be built for the steam generation system of a thermal power plant. This feasibility study covers two areas: development of a predictive model and evaluation of performance with the help of developed model. The present system under study consists of five subsystems with three feasible states: full working, reduced capacity working and failed. After drawing transition diagram, differential equations are generated and then a probabilistic simulated predictive model using Markov approach has been developed considering some assumptions. Availability matrix for each subsystem is also developed, which provide various availability levels. On the basis of this study, performance of each subsystem of steam generation system is evaluated and then maintenance decisions are made for subsystems. © 2010 World Scientific Publishing Company.


Kumar R.,Haryana Institute of Engineering and Technology
E-Journal of Chemistry | Year: 2012

New Salicylate derivatives of organoheterobimetallic-μ- oxoisopropoxide [Bu2SnO 2Ti 2(OPr i) 6] have been synthesized by the thermal condensation μ-oxoisopropoxide compound with different salicylates in different molar ratios (1:1-1:4) yielded the compounds of the type [Bu 2SnO 2Ti 2(OPr i) 6- n(RSal) n] (where n is 1-4 and RSal = Salicylate anion) respectively. The μ-oxoisopropoxide derivatives have been characterized by elemental, liberated isopropanol and spectral analysis (IR, 1H , 13C, 119Sn NMR).


Kumar R.,Haryana Institute of Engineering and Technology
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry | Year: 2014

In the present study, a novel heterobimetallic [Mg(II)-Sn(IV)]-μ- oxoisopropoxide [MgO2Sn2(OPri)6] and its β-diketonates have been synthesized and characterized. The parent compound has been synthesized by the thermal condensation of magnesium acetate and tin(IV) isopropoxide. The isopropoxy substitution reactions of μ-oxoisopropoxide compound with β-diketones in different molar ratios (1:1-1:4) yielded the mono derivatives to tetra derivatives respectively of the parent compound. [{MgO2Sn2(OPri)6-nLn} (where n is 1-4 and L = acetylacetonate/ benzoylacetonate anion)]. The μ-oxoisopropoxide compound has been characterized by liberated isopropanol, elemental, spectral (IR, 1H, 13C, 119Sn NMR, and mass), thermal analysis, molecular weight data, and plausible structure is suggested. Some important reactions of [MgO2Sn2(OPri)6] with different β-diketones have revealed interesting facets in support of the suggested structure. The β-diketonates have been characterized by elemental, liberated isopropanol and spectral analysis (IR, 1H, 13C NMR). © 2014 Copyright Taylor and Francis Group, LLC.


Sharma H.K.,Kurukshetra University | Singh J.,Kurukshetra University | Kumar R.,Haryana Institute of Engineering and Technology | Amardeep,Kurukshetra University
Journal of the Indian Chemical Society | Year: 2013

A new heterobimetallic-μ-oxoisopropoxide of the type [SnO 2Ti2(i-OPr)6] has been synthesized by the thermal condensation of tin diacetate and titanium isopropoxide in 1:2 molar ratio in refluxing xylene. The isopropoxy substitution reactions of this μ-oxoisopropoxide compound with β-diketones in different molar ratios (1:1-1:4) gives compounds of the type [SnO2Ti2(i-OPr) 6-nLn] (where n is 1-4 and L = acetylacetonate/ benzoylacetonate anion). The μ,-oxoisopropoxide compound has been characterized by elemental, spectral analysis (IR, 1H , 13C, 119Sn NMR and mass) and molecular weight measurement. The β-diketonates of [SnO2Ti2(i-OPr)6] have been characterized by elemental, liberated isopropanol and spectral analysis (IR, 1H, 13C NMR).


Kumar R.,Haryana Institute of Engineering and Technology | Sharma H.K.,Kurukshetra University
Journal of the Korean Chemical Society | Year: 2012

New Schiff base derivatives of organoheterobimetallic-μ-oxoisopropoxide [Bu 2SnO 2Ti 2 (OPr i) 6] have been synthesized by the thermal condensation ?-oxoisopropoxide compound with Schiff bases in different molar ratios (1:1-1:4) yielded the compounds of the type [Bu 2SnO 2Ti 2 (OPr i) 6-n (SB) n] (where n is 1-4 and SB=Schiff base anion) respectively. The μ-oxoisopropoxide derivatives have been characterized by elemental, spectral analysis (IR, 1H, 13C, 119Sn NMR) and molecular weight measurement The studies reveal that the derivative compounds show monomeric nature. Further these are found less susceptible to hydrolysis as compared to parent compound and may prove excellent precursors for the mixed metal oxides.

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