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Full-Text Articles in Engineering
Techno-Economic And Sustainability Analysis Of Renewable Natural Gas (Rng) Production, Eesha Bhattacharjee
Techno-Economic And Sustainability Analysis Of Renewable Natural Gas (Rng) Production, Eesha Bhattacharjee
USF Tampa Graduate Theses and Dissertations
Natural Gas (NG) is one of the major sources of energy currently used in the United States. Its major applications include generating electricity, domestic, and industrial heating purposes and as a transportation fuel. The largest component of NG is methane, and it contains trace amounts of hydrocarbons, some CO2 and water vapor.
Biogas (produced by anaerobic digestion (AD) of biomass) upgraded to have high purity methane (often termed as biomethane or renewable natural gas) can be used as an alternative to NG. The upgrading techniques may include CO2 separation from the biogas stream or via to a methanation facility where …
Innovative Desalination Systems Using Low-Grade Heat, Chennan Li
Innovative Desalination Systems Using Low-Grade Heat, Chennan Li
USF Tampa Graduate Theses and Dissertations
Water and energy crises have forced researchers to seek alternative water and energy sources. Seawater desalination can contribute towards meeting the increasing demand for fresh water using alternative energy sources like low-grade heat. Industrial waste heat, geothermal, solar thermal, could help to ease the energy crisis.
Unfortunately, the efficiency of the conventional power cycle becomes
uneconomically low with low-grade heat sources, while, at the same time, seawater desalination requires more energy than a conventional water treatment process. However, heat discarded from low-grade heat power cycles could be used as part of desalination energy sources with seawater being used as coolant …
The Conversion Of Low-Grade Heat Into Power Using Supercritical Rankine Cycles, Huijuan Chen
The Conversion Of Low-Grade Heat Into Power Using Supercritical Rankine Cycles, Huijuan Chen
USF Tampa Graduate Theses and Dissertations
Low-grade heat sources, here defined as below 300 ºC, are abundantly available as industrial waste heat, solar thermal, and geothermal, to name a few. However, they are under-exploited for conversion to power because of the low efficiency of conversion. The utilization of low-grade heat is advantageous for many reasons. Technologies that allow the efficient conversion of low-grade heat into mechanical or electrical power are very important to develop.
This work investigates the potential of supercritical Rankine cycles in the conversion of low-grade heat into power. The performance of supercritical Rankine cycles is studied using ChemCAD linked with customized excel macros …