Engineered Systems Magazine

2023 September

Read this issue to learn more about the refrigerant transition, chillers and central plants, ASHRAE, hospitality, and more.

Preparing for the Refrigerant Evolution

The next-generation A2Ls that will become the industry standard combine innovative chemistry and sustainable technology.

Charles Allgood PhD

September 4, 2023

Pretty much anyone involved in any capacity in HVACR is aware that the world of refrigerants has begun its next evolution.

Four potential pitfalls to consider when insulating industrial pipes and vessels

Understanding the nature of the materials involved in industrial processes and establishing a moisture management strategy are necessary to protect against corrosion.

Alec Cusick

September 9, 2023

Industrial environments present extreme conditions for pipes and vessels that transport, cycle, and store process materials.

Sustainability Now a Top Priority in Hotel Design

Engineers need to balance guest comfort with energy efficiency.

Nancy Kohout PE, LEED AP BD+C

September 7, 2023

Designing HVAC systems for energy-efficient mid- to high-rise hotels is an intricate endeavor, intertwining cutting-edge technology, engineering prowess, and an awareness of evolving industry standards and regulations.

ASHRAE Standard 15-2022 Plays Crucial Role in Refrigerant Transition

Standard 15 includes many additional safety requirements for A2L refrigerants

Atiya Hasan PE

September 6, 2023

As the policy-driven refrigerant transition takes hold in the HVAC industry, mechanical engineers are encountering a new challenge to ventilation system design.

How To Create HVAC Master Plans for a University

There are many factors to consider

Howard McKew, P.E., C.P.E.

September 13, 2023

Often overlooked, the optimum acoustic environment doesn’t get included with HVAC design intent documents unless it is a theatre school.

The Impact of the Environment on Infectious Fungi

The devastating consequences of recent outbreaks demand understanding and management of conditions that contribute to worsening fungal disease.

Stephanie Taylor, M.D., M. Arch, CIC

September 12, 2023

In the past several years, there has been much discussion on the influence of indoor environments on the spread of diseases caused by viruses and bacteria.

Are We Ready For AI Managed Buildings?

To achieve a return on investment, building owners need a management plan to manage AI.

Howard McKew, P.E., C.P.E.

September 8, 2023

First, we had individual controls systems within a building made up of simple, low-voltage electricity and pneumatic control systems for larger building management installations.

The Bypass Pipe’s Balancing Valve: Part II, Case Studies

These six case studies, covering just the last three years, illustrate how bad second-order effects can get when there are problems with the bypass pipe’s balancing valve.

Miles Ryan P.E.

August 31, 2023

Six cases studies show how bad second-order effects can get when there are problems with the bypass pipe’s balancing valve.

This presentation will help design engineers, building owners and operations gain a better understanding of the available “Next Level Up” building management solutions and how they can help our customers achieve their energy and resource goals.

Earn: 1 AIA LU/HSW; 0.1 IACET CEU; 1 PDH

Engineered Systems Magazine

2023 September

Cover Story

Preparing for the Refrigerant Evolution

Feature Articles