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Well, if the aerospace company you are working for is Honeywell, then you could transfer to HBS and apply for any of the PCE openings posted on Honeywell Jobs. PCE stands for Performance Contracting Engineer, which involves energy auditing, among other things.

Does anyone have experience or references for energy conservation measures that can be implemented at cell tower sites to reduce energy consumption?

I'd like to hear from anybody that has experience or technical data (other than from the manufacturers website) concerning the performance of the Abbotly ESM System 4000. The manufacturer claims installation of the module will reduce energy consumption of refrigeration and air conditioning...

I am interested in your opinions regarding polarized refrigerant oil additive which is claimed to provide life extension and energy savings when added to AC or refrigeration systems. Snake oil or credible solution?

I've got a Microsoft Power Point slide presentation that shows HVAC componets in 3-d drawing format. 22 slides. Send me an E-mail at otta4415@comcast.net and I'll send you the 870 KB file. Rick

Here is a list of equipment we use for commercial facility energy audits. Quantity of loggers and sensors vary with application and facility size. Fluke 39 Power Meter Fluke 80i-500s AC Current Clamp Fluke TL223 Electrical Test Lead Set Fluke 77-3 Digital Multimeter Fluke 80TK Thermocouple...

A vertical axis wind turbine is often called a Savonius or Darius design. Plug these words into Google and you will get lots of hits.

VFD efficiency (in percent) varies as a function of HP rating and percent full operating speed. A discussion and chart of VFD efficiency ratings can be found at the bottom of page 7 in the Energy Matters, Winter 2002 issue. Available at...

Since posting the question in July, I have found the following information: The affinity laws are valid only under constant efficiency conditions. When an impeller diameter is cut it increases the radial clearance between the impeller and the volute. This results to increased losses due to...

I see some engineers use a 2.5 exponent for calculating horsepower using the affinity laws instead of 3.0 to account for inefficiencies not captured in the fan laws. Is there a technical reference for taking this position?