Batch reverse osmosis is a unique process that uses standard equipment to recover water from scaling-prone reverse osmosis (RO) concentrate. Batch RO avoids scaling by operating in cycles that are too short for scalants to nucleate. Batch RO can efficiently reduce inland desalination plants’ concentrate disposal costs while recovering potable water. We have demonstrated batch RO at the pilot scale as part of the US Bureau of Reclamation’s More Water Less Concentrate Challenge. The pilot system demonstrated more than 80% water recovery from RO brine for less than 2.5 kWh/m3. By leveraging batch RO’s cyclical operation and demonstrating its efficacy with the Yuma Desalting Plant’s challenging RO brine, we hope to expand the capabilities of RO for low-energy, high-recovery desalination.
A student project for AHSE1500: Foundations of Business and Entrepreneurship (taught in Spring 2006) featuring an Olin College themed tradable card game. It consists of cards of students, professors, locations, and events.
This record contains the Final Report for the project and scanned images of all the cards in the game.
During the remote spring 2021 semester, students in the User-Oriented Collaborative Design course used Miro boards to replicate the post-it filled classroom they normally inhabit for the class.
Given the detrimental environmental impacts from the fast fashion clothing industry, this research project delves into the recycling of textiles for thermal insulation and energy conservation. The present work includes analyzing recycled fabric samples with varying methods of construction in order to maximize the volume of air—since air resists heat conduction—while keeping the air pockets small enough to minimize thermal radiation and convection. Thermal modeling using resistance networks was done to validate the measurement method and increase the accuracy and replicability of thermal conductivity measurements. Multiple quilt samples were sewn and measured with a thermal conductivity apparatus, with the goal to reduce thermal conductivity as much as possible. Quilt samples varied by the density of top-stitching, where indentations caused by stitching could create air pockets. Preliminary findings show that quilt samples with higher stitch density have a lower thermal conductivity than samples with a lower stitch density.
The Olin Raytheon/WHOI SCOPE team is assisting WHOI in the buoy design effort by writing software tools for managing the energy budget of a deployed buoy. Woods Hole Oceanographic Institute (WHOI) scientists are constructing buoys for the Ocean Observatories Initiative (OOI), an NSF funded program that will construct a network of buoys for monitoring physical, chemical, geological, and biological variables in the ocean and on the sea floor. The buoys in development for the OOI by WHOI will be expected to operate for 25 years with annual maintenance. Power for an array of reprogrammable sensors will be dependent on a combination of solar and wind power generation and an on-board fuel cell replenished during the annual maintenance.