Extra Edition

Btu Buddy 116: Oil Burner Pump Problem - Part 1

November 19, 2012
Bob and Tim were on their way to a no heat call. It was an oil heat application and Tim was anxious to work on an oil system. He had not seen an actual oil heat installation, only in the school lab. Those are great, but not like the real thing at a customer’s house.


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NREL’s Energy-Saving DEVAP Air Conditioner Cuts Peak Power Loads

November 19, 2012
The desiccant-enhanced evaporative (DEVAP) air conditioner — developed by the National Renewable Energy Laboratory (NREL), AIL Research, and Synapse Product Development LLC — combines desiccant-based dehumidification with indirect evaporative cooling to reduce cooling energy use by as much as 81 percent.


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Tips to Avoid a Post-Holiday Party Sexual Harassment Charge

November 19, 2012
For many companies this time of year means planning the annual holiday party. This is not as simple as it seems. When employees cut loose at company-sponsored functions, the results can lead to sexual harassment charges and other liability issues.


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New Roof and Attic Design Improves Energy Efficiency in Summer and Winter

November 19, 2012
A new kind of roof-and-attic system field-tested at the U.S. Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) has been developed to keep homes cool in summer and prevent heat loss in winter, a multi-seasonal efficiency uncommon in roof and attic design.


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Troubleshooting Challenge: A Heat Pump That Kicks Off

November 5, 2012
In this month’s troubleshooting problem we have a customer who can only tell us that their heat pump “isn’t working” and “the temperature in the building isn’t right.” When you arrive, you confirm the system isn’t operating properly. The indoor fan motor is running normally, but the building temperature is far from the thermostat set-point.


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Towards Improving the Design of Cast Iron Components for Refrigeration Equipment - Part 3

November 5, 2012
The first two parts of this series dealt with the use of cast iron components in refrigeration equipment. This last part will focus on the construction of such components.


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The Top Mistakes Businesses Make During Emergency Planning

November 5, 2012
According to a 2012 study of more than 1,300 U.S. workers, 75 percent of employees believe their company is not well-prepared for a natural disaster. Cintas Corp., a leader in first-aid and safety products, identifies seven mistakes businesses make in emergency planning to encourage better preparation.


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New Chillin' Brew Panels Keep Beer at Coldest Possible Temperature

November 5, 2012
Entropy Solutions Inc., a bio-based specialty company, has announced the launch of Chillin’ Brew™ panels, a new product designed and engineered to keep beer at the absolute coldest temperature possible.


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Btu Buddy 115: No Cooling Call, Condensate Problem

October 22, 2012
Bob and Tim have arrived at a “no cooling” call at a commercial building location. They went first to the thermostat and noticed that the indoor fan was running, but there was no cool air coming out of the air registers.


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Towards Improving the Design of Cast Iron Components for Refrigeration Equipment - Part 2

October 22, 2012
In the first part of this three-part series, we talked about the effect cold shortness has on the use of cast iron in refrigeration equipment. Now we will look at porosity and abrasion resistance.


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