Jason De Stigter, Becky Mastbergen, Rick Scholtens
The All Seasons Center (a pool, ice arena, and recreational complex) started normal operations in late 2003. It was a joint effort between the City of Sioux Center, Sioux Center Community School, and Dordt College. The City of Sioux Center and Dordt College each cover half of the operating costs for the facility. Unfortunately, the utility costs, especially gas, have historically been far higher than anticipated. The actual costs are nearly twice that of the estimated, or about $100,000 more. This places an increased burden on the City of Sioux Center and Dordt College.
The objective of this design team was to conduct a thorough energy audit of the ASC facility and propose design changes to the facility or its operational processed that will conserve energy and reduce operational costs. However this project is more than about simply saving money, as the students put it in their report.
"As Christians one of our main concerns is stewardship of the resources God has given. It may seem that this project is all about money .. However, every dollar saved on energy corresponds directly to a decrease in energy use. In our current age, when the world does not know exactly where it will get energy in the next century, energy audits such as this are an important step in the right direction to reducing energy consumption. Therefore any dollar savings, which represents energy savings, is one way we can fulfill our call from God to be stewards of his creation."
The primary goal of this project was to design a camera dolly for Prairie Grass Productions, an organization within the Film and Digital Media program at Dordt College.
The project required the design team to design a cart and track that would provide a smooth ride, was lightweight, portable, easy to assemble, low-cost, and useable on a different terrain. After design, fabrication, and testing, the camera dolly met all the design goals and will be used in the future by Dordt College film students.
Craig Bielema, Ashley Prins, Chris Wyenberg
Dordt College is currently making plans to change the campus landscape on the north side of campus. Currently, the north entryway to campus is misaligned with 7th Avenue, a street running past the local high school. Popular events taking place simultaneously at both institutions lead to major traffic congestion and safety concerns for motorists and pedestrians.
The proposed landscape revisions to Dordt's campus will remedy this problem by aligning the north entryway with the 7th Avenue and 7th Street intersection. However, this entryway will no longer guide visitors' eyes towards the campus center; consequently, landscape architects have identified the need for a landmark at the south corner of this entryway, to serve as a focal point for a visitor's first view of the campus.
A clock tower has been suggested as a possible focal point to serve this aesthetic need. The design team felt that a well designed clock tower would not only meet this aesthetic need on campus but could also communicate the vision of the institution along with a Christian philosophy of time and "life under the sun". The project team focused primarily on the technical workings of this proposed clock tower which included the design of a mechanical gearbox, an electronic controller, and several solar aspects of the tower.
Nick Draayer, Roy Duininck, Travis Hoekstra, Cody Lieuwen
The objective of this project was to integrate a wind turbine into the Solar Energy Engineering Laboratory located on the roof of the engineering wing. This wind turbine and photovoltaic hybrid system will be used as a teaching tool in the renewable energy courses taught on campus. This design enables future students to tangibly see one potential path of developing and caring for God's creation in an obedient direction.
Calvin Doornbos, Jon Hjelle, Nathan Miller
This project team addressed the need for an alternative to the internal combustion engine for in-town errands and commuting. The internal combustion engine emits its maximum pollution during short trips which do not allow the pollution control devices to reach their optimum effectiveness. A personal electric vehicle with the ability to run in-town errands was proposed as a solution to this problem.
This project specifically addressed the design of an electric drive system, the integration of this drive system into an existing frame from a previously designed human-powered vehicle, and the modification of that frame to support the whole system. The end result was a demonstration vehicle that takes a step toward the final goal of a fully road-legal personal electric vehicle that could be ultimately recharged using a PV panel; a step toward becoming more responsible stewards of energy resources God has entrusted to us.
Vermeer Manufacturing, an agricultural implement and construction equipment manufacturer in Pella, Iowa designs and builds trenchers for many applications. During the process of continuously improving their products they found that the operator of the track trencher may experience significant vibration when operating the trencher in very rocky terrain.
To improve operator comfort and reduce operator fatigue that can be induced by excessive vibration, this design team partnered with Vermeer Manufacturing and LINK Manufacturing of Sioux Center, Iowa to design a seat that would effectively reduce vibrations in all three dimensions in the trencher cab.
The project required the analysis of trencher vibration frequency data and the dynamic modeling of seat vibration with the isolation system in place. A prototype was built and tested on site.