Articles by Peter Powell

Winding Down a Complicated Year in Refrigerants

By Peter Powell
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It has been an interesting — and complicated — year when it comes to refrigerants. The year began with cutbacks in HCFC production. We had expected there to be about 90 million pounds of virgin R-22 in 2012, down a bit from 2011. But the EPA proposed at the most 80 million pounds and at the least 55 million.


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New Reports on Refrigerants Released

Research Balances Low GWP with Energy Costs
By Peter Powell
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Two new reports that provide detailed studies of refrigerants have recently been released. The research is evaluating how newer refrigerants — ranging from HFC and HFO f-gases to natural refrigerants such as ammonia, CO2, and HCs — stack up against the current crop of popular refrigerants.


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Focusing on Natural Refrigerants

By Peter Powell
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The significance of a recent two-day conference was not only the extensive presentations regarding natural refrigerants such as CO2, HCs, and ammonia, but where the meeting was held — Washington, D.C.


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Humidity, Pressure, and Airflow Tune-up for Turkey Plant

By Peter Powell
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Even turkeys need comfort in preparation for … well, you know. There is also a need for refrigeration and freezing. And the folks who prep the birds need comfortable working conditions. To make sure conditions are the best for all concerned, an 80,000-square-foot turkey products plant in Jonesboro, Ark., underwent an overhaul.


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

By Peter Powell
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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

By Peter Powell
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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

By Peter Powell
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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

By Peter Powell
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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

By Peter Powell
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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

By Peter Powell
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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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