William Woltmann Email and Phone Number

Studied and tested the effect of high temperature on the molecular stability, electrolyte properties, and cell performance of redox material 10-[2-(2-methoxyethoxy)ethyl]-10H-phenothiazine (MEEPT) in Nonaqueous Redox Flow Batteries (NAqRFB)Discovered that elevated temperatures increase reaction kinetics and reduce transport loses while leading to decomposition of MEEPT. Suggested the use of balance-of-system equipment necessitating energy balance and heat infrastructure considerations

Designed a low-cost, photovoltaic powered evaporative cooling device to store up to 2,000 kg of vegetables and fruits in developing regions with hot and arid climates that are not connected to an electrical gridCreated a database that included optimal temperature and humidity conditions with required volumetric airflow rates and static pressure in a forced air cooling system for 129 perishable food itemsStudied the effects of heat and mass transfer between the air, evaporative media, and perishables along with performing a fluid dynamics analysis to determine the air speed and power required for cooling each type of food itemTasked with selecting the best fan(s) and evaporative media to achieve optimal cooling with respect to time, temperature drop and humidity increase. Communicated with sales representatives from global manufacturers to gather materials for prototyping

Designed and conducted a human study to examine the biomechanics and ergonomics of flexible ureteroscopy, a surgery to remove kidney stone blockages within the urinary tractDirected 12 practicing urologists of different experience levels in completing 13 ureteroscopic tasks. Prior to each test I calibrated the Vicon system, synchronized 3 Go Pro cameras, setup the ureteroscope and placed 41 reflective markers on the participantDeveloped algorithms to analyze wrist, torso, head, and pelvic data recorded by the Vicon motion capture system to find the most common, efficient, and time-saving movementsResults showed high-efficiency performers completed tasks with high torso yaw variance, strong bilateral wrist correlation, low head movement and several other performance factors quantified through hull volume analysis.

Investigated the potential of a small-scale torrefaction reactor used to convert biomass waste products into energy-dense fuels and fertilizersResponsible for optimizing reaction parameters such as temperature and oxygen levels in 12 different compartments of the reactor while recording data pertaining to yield and burn time for each type of bio waste testedConducted calorimetric analysis of biochar product to quantify performance of the oxygen-leanreactor at specific conditions. This testing confirmed biochar that is high in energy requires longer burn time, higher temperature and more oxygen