Andrew Goldschmidt – Dwyer Instruments Blog

Moisture Control for Indoor Air Quality

Andrew Goldschmidt — Wed, 05 Aug 2020 15:40:01 +0000

As buildings continue to become more and more energy efficient, we continue to see updates and recommendations to building designs. For example, ASHRAE recently published an update to Standard 62.1 Ventilation for Acceptable Indoor Air Quality that covers changes to how we monitor and control humidity in occupied spaces. To better understand why these humidity …

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Characteristics of Thermal Anemometers & Why They’re Well-Suited for Low Flow Applications

Andrew Goldschmidt — Wed, 08 Jul 2020 12:38:42 +0000

There are two common ways to measure air velocity: by using pressure-based instrumentation or by using temperature-based instrumentation. Before we discuss the different technologies available for measuring velocity pressure, it is important to understand the basics of air velocity. Air velocity is the area of air movement measured in distance traveled relative to time elapsed. …

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Understanding Ventilation Efficiency and DCV in Parking Structures and Garages

Andrew Goldschmidt — Wed, 04 Mar 2020 19:34:42 +0000

When it comes to capturing energy savings, owners, contractors, and engineers will utilize several design efforts to reduce a building’s total energy consumption and carbon footprint. The first area that design engineers typically tackle is the lighting design of the building (using things such as building orientation to maximize natural light or low energy consuming …

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What is ACH and Why is It Important?

Andrew Goldschmidt — Wed, 23 Oct 2019 12:00:27 +0000

If you’ve ever spent time in a hospital, you may have noticed a device similar to a home thermostat mounted on the wall with a display stating “ACH”. What exactly does “ACH” stand for and why is it important in a building or hospital? What is ACH? Air changes per hour (abbreviated as ACPH or …

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Capacitance Polymer Humidity Sensors

Andrew Goldschmidt — Thu, 11 Apr 2019 14:52:50 +0000

Humidity sensors are one of the most common types of sensors used for HVAC equipment and building management systems. With proper humidity monitoring, energy efficiency of a building can be improved. By using environmental conditions in conjunction with an economizer to reduce the building load, cool outside air is used to cool the indoor space of a building. …

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