Boiler and chiller selections are based on the heating and cooling loads. A reasonable safety factor for a boiler selection is to select two boilers at 2/3 or three boilers at ½ of the total load calculation.
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According to this article from Inc., the ten most important factors for employee satisfaction are: Purpose – to make a difference Goals for sense of purpose Responsibility Autonomy Flexibility Attention Opportunity for innovation Open mindedness Transparency A year before finishing my Bachelor’s degree, I joined the Nuclear Navy. Nothing could be better. I was getting paid a decent salary for my last year of school. Getting up at 4:00 AM, marching, chanting, calisthenics, etc.: not required. No uniforms. And get this: I found that I had earned 30 days of vacation while attending my last year of school! After graduation,…
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For the electrical cost of running the chiller, you get some or all of the heat you are removing from your chilled water, a reduced load on the cooling tower, and all the power you put into the chiller back as heat.
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In order to ensure destruction of the VOCs, the temperature of the waste air stream must be raised to a relatively high temperature, typically in the range of 1,200 to 1,800 degrees F or even higher.
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Did you know water can also be used as a refrigerant? Actually water, also known as R-718 (R for refrigerant) is used as refrigerant in absorption chillers that are not all that uncommon.
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The solution involves installing automatic gates or valves on each of the vacuum points and interlocking them with the machines. Therefore, when the machines are off, the gates are closed.
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With current installation costs, the ROI resulting from installing biofilters has been favorable enough for many facilities to pioneer this technology. It appears that these systems are here to stay.
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By installing back pressure turbines on a high pressure steam system, recent jumps in electric utility costs can be offset. A back pressure turbine is simply a steam turbine used to generate electricity.
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New York City recently completed its report for the benchmarking of all its “large” facilities, generally with square footage of 100,000 or greater. The results of the study are not surprising. You may be thinking, “Who cares about NYC?” Answer: this post includes universal challenges with benchmarking whether it’s Batswana or the Yukon. The benchmarking was completed using ENERGY STAR Portfolio Manager, which as far as I can tell ranks buildings by source Btu per square foot, otherwise known as energy intensity. For example, it uses a factor of 3 for electricity, which is one over the efficiency of delivering electrical…
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