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Articles by Peter Powell

A Windy Solution to Solve a Contractor’s Sales Woes?

One of the toughest sells for contractors is the upfront costs of a new HVACR system, regardless of how quick the energy efficiency or environmental preservation paybacks might be. So one has to wonder if authors Mark Jacobson and Cristina Archer had upfront costs in mind when they wrote a study about wind power.


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Giving Advice: It’s All in How You Say It

There is usually extreme pressure on high school counselors to get a high percentage of graduating students into college. To tell a student not to go on to college would call for diplomacy. To help in the diplomacy effort, it is important that the vocational tracks offered are shown in a favorable light.


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Concerning Buildings, Refrigeration, Compressors

Net zero energy buildings, changes coming in domestic refrigeration, the future of turbo equipment, and trends in energy efficiency. Those were the topics during plenary sessions that started each morning at the every other year Purdue conferences dealing with HVACR.


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Multiple Choice in Refrigerants

A hot topic in the world of refrigeration and air conditioning continues to swirl around refrigerants and what refrigerants will take hold and be used now, besides HFCs, and what will supplant HFCs in the future.


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Finding New Ways to Deal With Moisture

The problem of unwanted moisture in HVACR systems has been an industry evil for years. How to deal with it is resulting in a widening range of solutions. To the familiar approaches of using filter driers, nitrogen purges, and multiple evacuations, manufacturers are adding use of sealants as well as dehydrating and activating agents.


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Stand-Alone R-32 Catches Interest at Purdue Conferences

The concurrent 21st International Compressor Engineering Conference, 14th International Refrigeration and Air Conditioning Conference, and 2nd International High Performance Buildings Conference showed how dramatically the issue of global warming is impacting the refrigerant aspect of the HVACR industry and how complex the issue is.


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New Technologies Amidst Refrigerant Talk

As the supermarket industry continues to embrace so-called ‘natural refrigerants,’ manufacturers also continue to seek improvements in energy efficiency with what they hope is easy to use equipment for service technicians. The FMI Food Retail Show was a major showcase for these developments at this year’s show in Dallas.


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Taking What They Can Get

With HFC refrigerants secure for the foreseeable future, it is still interesting to take a look from time to time at phase down talk and how the industry may adjust should that become a reality.


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Low GWP in Refrigeration Discussed at Conference

When it comes to industrial and commercial refrigeration, high on the research radar screen are low GWP alternative refrigerants for everything from small bottle coolers and freezers to entire supermarket systems.


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Carbon Dioxide and Ammonia Use in Supermarkets

When the EPA’s  Greenchill’s Keilly Witman spoke at the Food Marketing Institute Expo last spring she said so-called natural refrigerants  would dominate the conversation and begin to appear in supermarkets in North America. Was she right?


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2014 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

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NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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EFFICIENCY STANDARDS

DOE has denied AHRI’s petition for reconsideration of walk-in standards. Is it getting harder to reach consensus on efficiency standards?
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