Ph.D. in Chemical Engineering, The
City College of New York (2012-2017)
Description of research and
activities
Primary project – Methane
Hydrates and Carbon Capture & Sequestration: Investigation of methane hydrates decomposition by thermal
stimulation & CO2 injection.The objective of this work is to develop efficient methods for
the extraction of methane gas from methane hydrates using thermal stimulation
and to study the CO2 sequestration at the fundamental level by lab scale
experiments. This work is complemented by numerical simulations in COMSOL using
fluid flow, heat transfer in porous media and phase change modules. Work to
date has investigated an effect of initial hydrate saturation, heating rates,
and CO2 injection rates on methane recovery and CO2 sequestration capabilities
Landfill Decomposition: In situ decomposition of synthetic landfill sample in a
high-pressure stainless steel reactor and the study of gas evolution rates and
composition of the gas exiting the system. The objective of this work is to
understand the heat transfer characteristics (endothermic or exothermic) on a
large scale landfill and gas composition by testing at laboratory scale. This
work also includes Gas Chromatography, Mass Spectroscopy and Thermal
Gravimetric analysis of the landfill sample and gas samples.
Viscosity Measurements of
Biological Waste: Measurement of viscosity of
biological waste slurry to determine the rheological characteristics. The
viscosity of different concentration slurries is measured at a constant temperature
(varying shear rate) and at a constant shear rate (different temperatures). The
objective is to find the optimum shear rate at which the slurry remains in the
Newtonian regime and does not clog the instruments in a waste treatment plant.
Supersonic Flow Modeling in
COMSOL: Modeling of the supersonic flow
in a CU Aerospace (CUA) converging-diverging nozzle, utilized in the propulsion
of cube satellites by using COMSOL numerical simulations. This project is
guided by Dr. Nick Tiliakos.
Heat Transfer Modeling in the
Landfill: Modeling of the heat transfer
in the landfill by using COMSOL numerical simulations.
Viscosity Reduction of Crude
Oil using CO2/N2: Measurement of viscosity of
crude oil sample in the presence of pure N2, pure CO2 and a mixture of CO2 with N2 at elevated conditions of temperature and pressure.
S. Tupsakhare, Ph.D. proposal
presentation to the Ph.D. committee at the City College of New York, April 28th, 2015, New York City, USA
Attended the Advanced Energy
Conference (AEC) 2016 held in New York City in April 2016. Advanced Energy 2016 focused
on energy development in New York State. AEC brought together researchers,
regulators, policy makers, energy providers and business leaders who are
shaping the future of energy in New York, the U.S. and around the world.
