Unfortunately, the failure rate of new businesses is staggeringly high. Often the problem lies with the technician, now business owner. He may have the technical skills, but not the necessary business skills.
Three years ago a team of researchers began developing an "intelligent" solar heating and cooling system. Today that team is exploring the likelihood of increasing the system's efficiency and adaptability by reducing it to the micrometer scale.
The next time you're faced with replacing an old steam boiler that was attached to a two-pipe air vent system, try the old-timer's trick. Remember that the replacement boiler is smaller in size and holds less water, thus requiring a boiler feed tank that acts as a reservoir for the new boiler.
Today, fuel cells are being developed to power commercial buildings, homes, passenger vehicles, and even small devices such as laptop computers. This article describes basic fuel cell components, highlights current fuel cell types, and discusses the technology challenges.
All business advice doesn't work together. In fact, much of the advice collected from many different sources may actually be in conflict with one another. Here consultant Al Levi provides his recommendations.
In this edition of the Btu Buddy series, the dispatcher calls Bob and tells him a customer has a very frozen heat pump outdoor coil. After checking out the unit, Bob finds a bad fan capacitor.
The adage "garbage in equals garbage out" holds especially true when determining chiller performance. If your sensors haven't been calibrated in the last year and are over three years old, the odds of them being inaccurate are almost 100 percent.
How to create a work environment that attracts and keeps the workforce. It should go without saying if you cannot attract and keep your workforce, then you must change what you are doing or face the consequences.
This article has been excerpted from a comprehensive white paper, "Refrigerants for Commercial Refrigeration Applications," issued by Copeland Corp., part of Emerson Climate Technologies. The article focuses on the criteria for refrigerant selection, including discussion of the transitional refrigerants (HCFCs), chlorine-free refrigerants (HFCs), and halogen-free refrigerants.
This article is the third and final part of a three-part series on inspecting and servicing gas appliances. It provides information on furnace operation, combustion analysis, and the limit circuit.
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