Redundancy Pays: Frictionless Chiller Helps University Reduce Utility Costs

May 2008
Heating/Piping/Air Conditioning Engineering;May2008, Vol. 80 Issue 5, p54
The article focuses on the incorporation of copper and granite cover into the exterior of McNamara Alumni Center at the University of Minnesota in Minneapolis which helps to reduce utility costs. The installation of McQuay's 300-ton frictionless chiller technology provides the compact footprint and part-load performance. Jon McCombs, operation manager at the center, said that the magnetic bearing compressor technology aims to improve the life cycle cost of the building's original chiller plant.


Related Articles

  • University of Minnesota saves on chiller upgrade.  // Snips;Mar2009, Vol. 78 Issue 3, p32 

    The article discusses the chiller upgrade made at the McNamara Alumni Center at the University of Minnesota in Minneapolis. NorthMarq Corporate Solutions alumni center operations manager Jon McCombs says that the 300-ton frictionless chiller from McQuay had the size and small footprint needed to...

  • Energy Efficiency Program Types. McLean-Conner, Penni // Electric Light & Power;Jul/Aug2010, Vol. 88 Issue 4, p10 

    The article offers information on the different types of energy efficiency programs in the U.S. It refers to the three categories an energy efficiency program may be part of, regardless of the overwhelming varieties, which are either direct install, education and audit, or rebate and loan....

  • A tale of twin towers.  // Engineered Systems;Nov99, Vol. 16 Issue 11, p38 

    Deals with the maintenance of the Minneapolis Government Center twin-tower buildings in Minneapolis, Minnesota. Installation of adjustable-frequency drives to control the building's air handlers; Selection of energy management system; Proposal to install fans in the atrium system.

  • Efficiency Calculation of Submersible Mixer. Shi Weidong; Tian Fei; Zhang Desheng; Guo Yanlei; Jiang Hua; Zhang Guangjian // Advances in Information Sciences & Service Sciences;Oct2012, Vol. 4 Issue 19, p421 

    So far, there is no formula to calculate the submersible mixer efficiency. The submersible mixer losses were analyzed. Following the power definition and conservation of momentum, the efficiency formula of submersible mixer was deduced. We get the below relationship: the efficiency is...

  • Thermal Performance Characteristics of an Energy-Efficient, Healthy House. Ibrahim, E. A.; Aglan, H.; Khan, M.; Bhuyan, M.; Wendt, R.; Livengood, S. // ASHRAE Transactions;2004, Vol. 110 Issue 2, p432 

    A collaborative effort between Oak Ridge National Laboratory and Tuskegee University has resulted in an energy-efficient, healthy house that is built on Tuskegee's experiment station farm to conduct various energy efficiency and indoor air quality studies. The house is well insulated and...

  • HALCYON DAYS. Nixon, Kate // Australian House & Garden;Jan2008, Issue 1, p114 

    The article discusses the architecture of a holiday home located near, Noosa River, Queensland. It mentions that the house is designed around the owner's main focus, the Noosa River, and provides a minimalist look, which is low on maintenance, high on relaxation, and more spacious. The house...

  • Fresh Air Creates Fresh Acoustical Concerns. Gregerson, John // Buildings;Jun2010, Vol. 104 Issue 6, p26 

    The article discusses the possible solutions for the environmental noise that is associated with the installation of natural ventilation in buildings. It says that noise is a problem that has hindered the many different attempts to ventilate buildings naturally despite research showing the...

  • The natural solution.  // Heating & Ventilating Review;Dec2009, Vol. 49 Issue 2, Special section p22 

    The article discusses the ways on how to adapt ventilation systems in buildings in order to reduce operating costs, comply with carbon targets and make the buildings more efficient. It also cites the forecast of British energy watchdog, Office of Gas and Electricity Markets (Ofgem), that energy...

  • Take on-demand approach to low carbon ventilation.  // Heating & Ventilating Review;Sep2008, Vol. 47 Issue 11, p31 

    The article focuses on the Sentinel on-demand ventilation system. An overview of the status of the building services industry is presented in relation to energy efficient specifications. Good business is explained with regard to ventilation. Reference is made to the Energy Performance of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics