Environmental Impact Assessment of Wooded Pallets Through Life Cycle Analysis

This project will be a continuation of a project, in which we proposed to carry out a reuse and environmental impact analysis of both cardboard boxes and wood pallets, both of which are widely used for material handling and packaging. This coming semester, the analysis will only narrow down to wooden pallets.

The objectives of this research is to:
1. Carry out a detailed literature review to determine the current usage and tonnage of pallets that are used in the USA
2. Analyze the current ways in which wooden pellets are reused, recycled or remanufactured
3. Design an environmental impact assessment by considering the Life Cycle Analysis methodology

Flora and Fauna of the Pleistocene Oak Creek Formation Peat Deposits

The objective of this project is to identify ancient flora and fauna contained within Late Pleistocene peat from the Oak Creek Formation deposits dating between 45,000 to 35,000 years old exposed at Sheridan Park in Cudahy, Wisconsin. Peat is comprised largely of unaltered plant material deposited in ancient bog ecosystems. Contained within the peat are a multitude of potentially identifiable plant materials to include leaves, twigs, and seeds, as well as insect fragments that will help characterize the paleoecology of this ecosystem which predates the last glacial advance into southeastern Wisconsin. The findings of this project will furnish details about the lesser-known paleoecology of this elusive time span in our local fossil record which is of paramount interest to the many students who visit the site for field trips. The student will employ the scientific method to describe their project, define their methods and, conduct their research. Specimens recovered from disaggregated peat samples collected at Sheridan Park will be identified with the aid of scientific literature review and by networking with myself and other scientists in both the Geoscience and Biology Departments at UWM.

Solid Rocket Booster Engine

In a solid rocket motor (SRM), when the propellant combusts, the aluminum is oxidized into alumina (Al2O3), which, under the right flow conditions, tends to agglomerate into molten droplets, impinge on the chamber walls, and then flow along the nozzle wall. Such agglomerates can cause erosive damage. The focus of the current research is to characterize the agglomerate flow within the nozzle section by studying the breakup process of a liquid film that flows along the wall of a straight channel while a high-speed gas moves over it. We have used an unsteady-flow Reynolds-Averaged Navier-Stokes code (URANS) to investigate the interaction of the liquid film flow with the gas flow, and analyzed the breakup process for different flow conditions. The rate of the wave breakup was characterized by introducing a breakup-length-scale for various flow conditions based on the Volume Fraction (VF) of the liquid, which is an indicator of a two-phase flow liquid breakup level.