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Full-Text Articles in Engineering

Preface-Jes Focus Issue On Electrolysis For Increased Renewable Energy Penetration, B. Pivovar, M. Carmo, K. Ayers, X. Zhang, J. O'Brien Oct 2016

Preface-Jes Focus Issue On Electrolysis For Increased Renewable Energy Penetration, B. Pivovar, M. Carmo, K. Ayers, X. Zhang, J. O'Brien

Mechanical & Aerospace Engineering Faculty Publications

(First paragraph) Today represents a particularly exciting time, as our planet’s energy system is undergoing major changes due to dramatically decreasing renewable energy prices and increasing societal concerns over greenhouse gas emissions, criteria pollutants (arsenic, mercury, NOx, particulate matter), and climate change. These factors are pushing society toward deep decarbonization of our energy system, perhaps the most challenging issue facing the planet today. Unfortunately, wind and solar energy, while both promising generation sources, come with intermittency challenges and have limitations in their abilities to impact industrial and transportation sector demands where fossil fuel energy carriers based on chemical bonds have …


High Tech High Touch: Lessons Learned From Project Haiti 2011, Yan Tang, Marc Compere, Yung Lun Wong, Jared Anthony Coleman, Matthew Charles Selkirk Sep 2016

High Tech High Touch: Lessons Learned From Project Haiti 2011, Yan Tang, Marc Compere, Yung Lun Wong, Jared Anthony Coleman, Matthew Charles Selkirk

Marc Compere

In this paper, we will share our experiences and lessons learned from a design project for providing clean water to a Haitian orphanage (Project Haiti 2011). Supported by funds from a renewable energy company and the university president’s office, five engineering students and two faculty members from Embry-Riddle Aeronautical University successfully designed and installed a solar powered water purification system for an orphanage located in Chambellan, Haiti. This paper discusses the unique educational experiences gained from unusual design constraints, such as ambiguity of existing facilities due to limited communication, logistics of international construction at a remote village location, and cross-cultural …


Optimization Of Electricity Generation Schemes In The Java-Bali Grid System With Co2 Reduction Consideration, Farizal Farizal, Wenty Eka Septia, Amar Rachman, Nasruddin Nasruddin, Teuku Meurah Indra Mahlia Aug 2016

Optimization Of Electricity Generation Schemes In The Java-Bali Grid System With Co2 Reduction Consideration, Farizal Farizal, Wenty Eka Septia, Amar Rachman, Nasruddin Nasruddin, Teuku Meurah Indra Mahlia

Makara Journal of Technology

This research considers the problem of reducing CO2 emissions from the Java-Bali power grid system that consists of a variety of power-generating plants: coal-fired, natural gas, oil, and renewable energy (PV, geothermal, hydroelectric, wind, and landfill gas). The problem is formulated as linear programming and solved using LINGO 10. The model was developed for a nation to meet a specified CO2 emission target. Two carbon dioxide mitigation options are considered in this study, i.e. fuel balancing and fuel switching. In order to reduce the CO2 emissions by 26% in 2021, State Electric Supply Company (PLN) has to generate up to …


Effects Of Emf Emissions From Undersea Electric Cables On Coral Reef Fishes, Robert F. Jermain Jul 2016

Effects Of Emf Emissions From Undersea Electric Cables On Coral Reef Fishes, Robert F. Jermain

HCNSO Student Theses and Dissertations

The objective of this project was to determine if the electromagnetic field (EMF) emissions from undersea power cables impacted the local and transient marine life, with an emphasis on reef fishes. The work was done at South Florida Ocean Measurement Facility of Naval Surface Warfare Center, Carderock Division, Broward County, Florida. This facility functions as the hub for a range of active undersea detection and data transmission cables. It has multiple active submarine power cables that extend several miles offshore and which can deliver power and enable data transmission to and from a range of acoustic and EMF sensors. The …


An Entrochemical Water Heater, Sanza Kazadi, Sabrina Lin, Kelvin Ye May 2016

An Entrochemical Water Heater, Sanza Kazadi, Sabrina Lin, Kelvin Ye

Sanza Kazadi

Entrochemical systems are systems capable of generating internal thermal gradients through internal
water movements which simultaneously transfer get of vaporization between internal water reservoirs. These systems move to a chemical equilibrium state that generates and maintains a thermal gradient. Entrochemical thermal batteries (ETB) can be constructed which extend the thermal gradient of a single cell through an additive process. Such systems can deliver useful work. Additionally solutions used therein may be recharged passively using environmental heat.

We describe the design and function of a bench-scale water heater capable of heating a small water
reservoir. The system is powered by an …


Compact Single Multistage Distillation, Sanza Kazadi, Brent Usui, Ashley An, Robin B. Zhao May 2016

Compact Single Multistage Distillation, Sanza Kazadi, Brent Usui, Ashley An, Robin B. Zhao

Sanza Kazadi

We report the design and function of a distillation apparatus which uses salt concentration gradients to
drive distillation and desalination of simulated sea water. Utilizing the entrochemical effect, the system
generates an internal thermal gradient. An internal distiller is arranged with the condenser in the cold end of the
entrochemical system and a seawater reservoir in the warm end of the entrochemical system. The heat of
vaporization is recaptured in the cold side of the entrochemical system and re-used. The spent solution in the
entrochemical system can be recharged using evaporation, making the surrounding thermal energy the source
of energy …