Noel's Green (make that SUSTAINABLE) Blog » LEED certified

Building Re-commissioning

noel — Thu, 22 Jul 2010 17:12:52 +0000

A review of

Building Commissioning: A Golden Opportunity for Reducing Energy Costs and Greenhouse Gas Emissions
By Evan Mills, Ph.D.
Lawrence Berkeley National Laboratory for: CEC (PIER) July 21, 2009

This white paper contains some compelling arguments in favor of re-commissioning. Money and energy are two items. A building is a kind of organism. We tend to forget that nature and behavior tend to tear and break things down. The passage of time wears things out and we have to maintain our buildings, and just like cars, they need to be tuned up regularly. It’s amazing how much money is being lost by neglecting to do a tuneup. Government and institutional buildings are especially prone to this benign neglect. In government, its often a case of out of sight, out of mind.

A Flow Chart for commissioning

noel — Thu, 08 Apr 2010 19:57:57 +0000

Alright, I will get off my high horse now and back on my regular horse. Back on the subject of energy and high performance buildings. Recently I have had the good fortune of connecting with some very good people and I am busy again at my profession. I am working with a great commissioning team doing LEED projects. I must say, it is gratifying to be using my experience and brains for a good cause: making a better built environment.

Here is a flow chart that I like. Charts are great for reducing complicated processes down to one glance… I like a good flow chart because they are visual, and I tend to be visual, maybe because of my defective ears.

This chart was borrowed from ASHRAE by the National Institute for Building Sciences (NIBS), and is posted on their Whole Building Design Guide web site. Click on the thumbnail to see the full size version.

Better HVAC can save $48 billion/year in the USA

noel — Fri, 05 Feb 2010 21:16:55 +0000

The latest numbers are that US buildings consume $320 billion/year in energy. 2/5 of all the energy used in the US. And about 40% of the energy (costing $120 billion/year) is used in buildings for HVAC.

Some of the 2009 stats HVAC designs that I have incorporated recently into my office building projects are expected to use 30% less than the levels allowed by the local and state building codes. (ASHRAE Energy code 90.1-2004).

Consider that more than 70 percent of existing commercial buildings in the country were constructed prior to 1980 (according to floor area, see this 2001 study) . It is very likely that most of these older buildings consume well over the present building code allowable.

There are no laws requiring them to retrofit. The financial incentive to retrofit is all that exists, and unfortunately, this is another example of out-of sight, out-of-mind ignorance. (and HVAC and building energy use in general getting no respect).

These buildings should be retrofitted to reduce energy use a minimum of 30% and more. Up to $48-60 billion per year is being simply wasted. Wow! That is $200 a year for every man woman and child in the US. Almost half as much as we throw away on the war in Iraq. ($130 billion in 2007)

Hey, what are you waiting for, lets find out where the energy is going!

Lighting… I did not mention lighting: higher efficiency lighting and optimal daylighting could save ANOTHER $20 billion /year easy.

If you still a skeptic, please read: “Working Toward the Very Low Energy Consumption Building of the Future”

30 years versus a certain curriculum.

noel — Fri, 22 Jan 2010 06:19:20 +0000

I want to clear the air about something that has been problematic for years. I do not have the standard degree in my field.

Recently I have been in close contact with many engineering, architecture, and construction hiring managers. The communication has revealed much and disappointed me on a number of occasions as I seek a new employer.

It’s the BSME. Employers are fixated on this credential. Filtering talent based on the degree-type parameter is not always justifiable. The filter does not do justice to the tremendous personal capacity and energy I bring to help make things happen. I have not been lucky in my search, anyway.

There is a serious shortage of good engineer talent. I bring a capacity to handle and coordinate many varying and complex issues of building design and making them benefit all.

MEP design is complex, no doubt, and a great degree of trust and reliance is placed on the project engineer. I am intimately familiar with the design process. I know how to make a design constructable. I promote and enforce high efficiency (LEED certification and Energy Star rating), and otherwise, I always strive to deliver “high performance” solutions.

Experience is the great leveler. I want to make this perfectly clear. My 30 years of practical HVAC and electrical design and build experience is at least EQUAL to the knowledge gained from a 5-year BSME. I bring a lot more than a general engineering knowledge to the table.

So how did this happen? A: In my life, engineering curriculum’s were not available to me when I was ready, willing and able.

I went to college after high school expecting to be an architect. When I attended Miami U, the world was changing and so was I. I was not as great an architectural designer as I thought I was. By the time I graduated, many opportunities and assumptions that seemed inevitable at the beginning had vanished. After I graduated and took my first job as a controls design /draftsman, the path was clearly leading toward consulting engineers, HVAC and electrical design.

When I decided to go back to college for a second degree, in 1996, the electrical engineering (only) curriculum at University of North Florida was small, and seemed stifling. After much deliberation, I concluded that a wider study of information science was more relevant to my future. So the die was cast.