Motors / Drives http://hpac.com/taxonomy/term/7349/more en GALLERY: Vintage HVAC Advertisements, 1931 http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1931 <div class="field-byline"> Edited by Connie Conklin </div> <div class="node-body article-body">1931 was a year of great American classics: Charlie Chaplin in the theaters, baseball legends Lou Gehrig and Babe Ruth, the first Dracula movie, and convicted gangster Al Capone. But the classics in the heating, piping, and air conditioning industry belong to our advertisers! Take a walk through history with these vintage ads.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1931" target="_blank">read more</a></p> http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1931#comments Air Conditioning Galleries Building Controls Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Thu, 21 Aug 2014 13:45:00 +0000 13821 at http://hpac.com Energy Department Invests $6 Million in Commercial-Building Efficiency http://hpac.com/iaq-ventilation/energy-department-invests-6-million-commercial-building-efficiency <div class="node-body article-body">The U.S. Energy Department recently announced up to $6 million in funding for the deployment and demonstration of four emerging energy-saving technologies in commercial buildings across the country.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/iaq-ventilation/energy-department-invests-6-million-commercial-building-efficiency" target="_blank">read more</a></p> http://hpac.com/iaq-ventilation/energy-department-invests-6-million-commercial-building-efficiency#comments IAQ & Ventilation Motors / Drives Wed, 20 Aug 2014 15:48:00 +0000 13791 at http://hpac.com Photo by Mario Tama/Getty Images Meet the HPAC Engineering Editorial Advisory Board http://hpac.com/editorial-advisory-board <div class="node-body article-body">HPAC Engineering's Editorial Advisory Board is comprised of distinguished professionals serving the HVACR industry. Possessing expertise in various engineering and scientific fields, they provide valuable assistance to the magazine's efforts.</div> <div class="field-content-focus"> <span>Content Classification:&nbsp;</span> Curated </div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/editorial-advisory-board" target="_blank">read more</a></p> http://hpac.com/editorial-advisory-board#comments Air Conditioning Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Archive Wed, 20 Aug 2014 15:03:00 +0000 5355 at http://hpac.com Calendar of HVACR Training and Education Events http://hpac.com/archive/calendar-hvacr-training-and-education-events <div class="node-body article-body">Are you looking to expand your knowledge and/or sharpen your skills in a particular area of HVACR? Do you have certification requirements you need to meet? Here is a list of upcoming industry education and training events.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/calendar-hvacr-training-and-education-events" target="_blank">read more</a></p> http://hpac.com/archive/calendar-hvacr-training-and-education-events#comments Air Conditioning Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Archive Tue, 19 Aug 2014 13:53:00 +0000 12391 at http://hpac.com GALLERY: Vintage HVAC Advertisements, 1930 http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1930 <div class="field-byline"> Connie Conklin </div> <div class="node-body article-body">High standards have always been mandatory for the heating, piping, and air-conditioning industry and for our magazine. Here is a sampling of ads from 1930 showing the importance of technical quality and those high standards.</div> <div class="field-content-focus"> <span>Content Classification:&nbsp;</span> Curated </div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1930" target="_blank">read more</a></p> http://hpac.com/galleries/gallery-vintage-hvac-advertisements-1930#comments Galleries Building Controls Fire / Smoke Heating IAQ & Ventilation Motors / Drives Piping / Pumping Fri, 25 Jul 2014 17:41:00 +0000 13561 at http://hpac.com Evaluating Power-Demand Reduction With VFD-Controlled Systems http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems <div class="field-byline"> By ALEXANDER L. BURD, PhD, PE, and GALINA S. BURD, MS; Advanced Research Technology; Suffield, Conn. </div> <div class="field-deck"> The impact of relative dynamic-pressure losses and other factors on overall power demand and energy savings </div> <div class="node-body article-body">The pattern of pressure drop through a system during off-design conditions is critical for centrifugal-pump and fan applications and even more so for systems employing variable-frequency-drive control. Typically, the assumption that, based on the affinity laws, relative electrical-power demand is changed following the variation of relative flow rate, which is raised to the power of 3, is made. However, this assumption is correct only when overall system relative pressure differential changes in direct proportion to relative flow rate, which is elevated to the power of 2.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems" target="_blank">read more</a></p> http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems#comments Motors / Drives Mon, 07 Jul 2014 18:15:00 +0000 13351 at http://hpac.com GALLERY: Innovative HVACR Solutions, June 2014 http://hpac.com/galleries/gallery-innovative-hvacr-solutions-june-2014 <div class="field-byline"> Compiled and edited by Connie Conklin </div> <div class="node-body gallery-body">Here you will find products from the leading HVACR manufacturers. Be sure to click on manufacturer links to find out more information!</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/gallery-innovative-hvacr-solutions-june-2014" target="_blank">read more</a></p> http://hpac.com/galleries/gallery-innovative-hvacr-solutions-june-2014#comments Galleries Heating IAQ & Ventilation Motors / Drives Piping / Pumping Archive Tue, 10 Jun 2014 17:53:00 +0000 13111 at http://hpac.com Getting What You Pay For http://hpac.com/blog/getting-what-you-pay <div class="node-body blog-body">Replacing equipment with the lowest-priced option may cost more in the long run.</div> <div class="field-content-focus"> <span>Content Classification:&nbsp;</span> influencer </div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/getting-what-you-pay" target="_blank">read more</a></p> http://hpac.com/blog/getting-what-you-pay#comments Air Conditioning Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Clark&#039;s Remarks Tue, 11 Mar 2014 19:04:00 +0000 12351 at http://hpac.com ASHRAE Seeking Papers for 2015 Winter Conference in Chicago http://hpac.com/ahr-expo/ashrae-seeking-papers-2015-winter-conference-chicago <div class="node-body article-body">ASHRAE has issued a call for papers for its 2015 Winter Conference, which will be held Jan. 24-28 in Chicago.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/ahr-expo/ashrae-seeking-papers-2015-winter-conference-chicago" target="_blank">read more</a></p> http://hpac.com/ahr-expo/ashrae-seeking-papers-2015-winter-conference-chicago#comments Air Conditioning AHR Expo Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Thu, 06 Mar 2014 18:44:00 +0000 12311 at http://hpac.com Retrocommissioning an Industrial Facility http://hpac.com/heating/retrocommissioning-industrial-facility <div class="field-byline"> By PETER D’ANTONIO, PE, CEM, LEED AP; PCD Engineering Inc.; Longmont, Colo. </div> <div class="field-deck"> Project uncovers opportunities for further energy-cost reductions </div> <div class="node-body article-body">Within large industrial corporations, facility maintenance often is viewed as no more than an operating expense. Many such organizations scoff at even a one-year payback for energy-saving projects, choosing instead to focus on the near-instantaneous returns offered by improvements in manufacturing efficiency. In northern Colorado, however, one manufacturer is working hard to change the way the economic benefits of energy efficiency are perceived and accounted for, recognizing facility energy-cost savings as a key contributor to the overall profitability of an organization.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/retrocommissioning-industrial-facility" target="_blank">read more</a></p> http://hpac.com/heating/retrocommissioning-industrial-facility#comments Air Conditioning Building Controls Heating IAQ & Ventilation Motors / Drives Silver Fri, 07 Feb 2014 15:01:00 +0000 11941 at http://hpac.com