Caleb Marvin

Aug 16, 2024 | csemag.com | Anna Steingruber |Drew Spektor |Caleb Marvin

Top Consulting-Specifying Engineer articles this week covered topics including RTUs, commissioning for energy efficiency and control system replacements1. Design of RTUs: Best practicesSpecifying rooftop units (RTUs) involves much more than choosing unit types2. 2024 Consulting-Specifying Engineer Product of the Year winners announcedThe best products of the past year as selected by Consulting-Specifying Engineer subscribers3.

Aug 13, 2024 | csemag.com | Amara Rozgus |Drew Spektor |Caleb Marvin |Daniel Rücker

Boiler insights In early 2024, Consulting-Specifying Engineer asked mechanical engineers about boiler specifications, specifically about brands, integration and future insights. Respondents’ boiler specifications have been impacted by recent regulatory changes in terms of improved efficiency, the requirement of electric boilers and NOx emissions having to be carefully reviewed.

Aug 13, 2024 | csemag.com | Caleb Marvin |Daniel Rücker |Drew Spektor

Plate and frame heat exchangers insightsPlate and frame heat exchangers provide a high level of thermal efficiency, resulting in improved performance and cost savings. The flexibility in their design makes plate and frame heat exchangers an effective and efficient solution for a variety of applications. The design of plate and frame heat exchangers simplifies maintenance, lowering costs and risk of potential downtime.

Aug 6, 2024 | csemag.com | Caleb Marvin |Tyler Wall |Mark Chrisman

Learning Objectives Identify the concerns with existing systems and low-temperature operating rooms. Learn the different types of dedicated outdoor air system units. Understand how an engineer implements a dedicated outdoor air systems unit in an existing system. Operating room insights The three system options when retrofitting low-temperature operating rooms are direct expansion, glycol chilled water and desiccant.

Aug 6, 2024 | csemag.com | Caleb Marvin |Daniel Rücker

Certus was asked to help a rural hospital attain low-temperature operating rooms with their existing air handling systems. The operating rooms were having difficulty maintaining the required 68 F room setpoint at 50% relative humidity, and a new doctor requested the spaces to get to 62 F at 50% relative humidity. With these initial requirements, the first task was to determine what kind of dedicated outdoor air system (DOAS) to provide.