SOUNDING BOARD
In the December 2011 Sounding Board (http://bit.ly/Sounding_1211), you published my letter concerning the October 2011 article “Evaporative Pool Dehumidification” (http://bit.ly/Lentz_1011)....
SOUNDING BOARD
I note your editorial comment regarding climate warming (“Global Warming: A Lot of Hot Air?” by Michael Weil, Weil I’m Thinking of It ..., November 2011, http://bit.ly/Weil_1111), in particular, “Much of the data used to come to this conclusion is based on ... modeling.”...
SOUNDING BOARD
Would the author of the article “Evaporative Pool Dehumidification” (October 2011, http://bit.ly/Lentz_1011) comment on a few issues? The IDECVAV system doesn’t appear to address the air-distribution recommendations provided in Section 4.6 of ASHRAE Handbook—HVAC Applications ...
SOUNDING BOARD
I read the article on the use of variable-frequency drives on forced-draft fans at the University of Rochester ("Variable-Frequency Drive Improves Boiler Operation," January 2011, http://bit.ly/Eisenhauer_0111). ...
SOUNDING BOARD
The article "The Quest for Maximum Boiler-System Efficiency" by Senior Editor Ron Rajecki (June 2011, http://bit.ly/Rajecki_0611) is very well-written. When I tried to push the idea of using delta-T in lieu of delta-P ...
SOUNDING BOARD
“Finer Points of Building Information Modeling” (May 2011, http://bit.ly/BIM0511) is a very good article. The concerns and suggestions mentioned are extremely important in the application of HVAC modeling. ...
SOUNDING BOARD
In the article "Investigation Into the Failure of Chilled-Water-Pipe Insulation" (March 2011, http://bit.ly/mPAJ9H), the author writes, "The nice thing about cellular-glass insulation on cold pipes is that damage to the jacket/facer has no effect on insulation performance."...
SOUNDING BOARD
Stack Effect I just read Pressurization Control in Large Commercial Buildings (February 2010, http://bit.ly/cu6NYo) and have a question for the author:...
Sounding Board
Although I agree with the basic premise of the column "Who Will Be Held Liable for Green Designs?" by Stephen J. Vamosi, PE (Engineering Green Buildings, December 2010...
Sounding Board
Very nice article ("Making a Case for Reduced Classroom Ventilation" by Ernest MacFerran, PE, CIAQP, Managing Your Facilities, December 2010)...
Sounding Board
I was pleased to see the article about the successful use of internal duct liner to quiet the auditorium HVAC system at Houlton Jr/Sr High School (“With Polyimide-Foam Duct Liner, Air Is Felt, not Heard, in School Auditorium,” Design Solutions, November 2010...
SOUNDING BOARD
The article "Absorption-Heat-Pump/Boiler Systems" (by James Pettiford, Erin Sperry, Melissa Wadkinson, and Fabio Spreafico, September 2010,) misses the point. In my opinion, any effort to improve energy efficiency must also improve economic efficiency. ...
Sounding Board
Regarding Scott Arnold’s column “Running (Literally) to Failure” (Editor’s Notes, September 2010): In my 24-year career with four different health-care organizations as an operating engineer (eight years) and facility director (16 years), I have found that every chief executive officer/chief financial officer I have worked under either does not understand ...
Sounding Board
I read with great interest the Liability & Litigation column by Gina Vitiello, LEED AP, on the appeal of the LEED certification awarded to Northland Pines High School in Eagle River, Wis., in the August issue of HPAC Engineering ...
Sounding Board
Reading the article on the Industrial Boiler MACT Rule (“Understanding the Industrial Boiler MACT Rule,” June 2010, http://bit.ly/d1jFga) leads me to this question: Do we need to be addressing our boilers for compliance?...
Sounding Board
I enjoyed the article "Improving Efficiency With Variable-Primary Flow" (by James J. Nonnenmann, PE, and Daniel J. Flynn, PE, April 2010, http://bit.ly/9LklBK), but would like to know more about the controls. How are the chillers staged on and off?...
Sounding Board
I am extremely distressed by the profound ignorance and arrogance exhibited by the authors (from Marion, Ill., and Dedham, Mass.) of two letters published in the April 2010 edition of HPAC Engineering (Sounding Board, "Global Warming," http://bit.ly/9Myhmi)....
Letters to the Editor
As engineers, our code of ethics requires that we hold paramount the safety, health, and welfare of the public. We, therefore, have an obligation to familiarize ourselves with the science of global warming. ...
SOUNDING BOARD
Becoming a LEED AP (Editor's note: The following was written recently in response to the November 2004 column Becoming a LEED-Accredited Professional,...
SOUNDING BOARD
The Cost of Building Green The article The Cost-Effectiveness of Building (October 2009) examines available research on the cost of green buildings. Using...
Letters to the Editor
Even though the definition of existing-building commissioning (EBCx) is given as a systematic process for investigating, analyzing, and optimizing the...
Letters
Central utility plants While Carl C. Schultz, PE, LEED AP, makes a number of very good and valid points in his two-part Engineering Green Buildings column...
Letters to the Editor - May 2009
Great article (The State of Energy: Revisited, March). It lays out the energy economic arguments in a very clear and concise manner. Matter of fact and...
How Green Is Green?
The movement is taking the construction field by storm. Some are looking to reduce their impact on the environment, while others are motivated to control...
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