White Papers

Below you’ll find varied collection of White Papers focused on the topics of Energy Recovery Wheels and Energy Recovery in general. To access white papers, please log-in or register.

IMPROVE BUILDING RESILIENCY WITH AFFORDABLE OUTDOOR AIR VENTILATION

As the recent pandemic has shown, minimum ventilation rates referenced in today’s building codes are far too low to provide us with the health and safety protections we need indoors.

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Energy Recovery Best Practices During a Pandemic

In times of extreme health risk such as a pandemic, it’s helpful to have a good understanding of how outdoor air ventilation systems can reduce the spread of pathogens within the built environment.

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Total Energy Efficiency White Paper

When designers are considering the use of energy recovery wheel options, they should consider multiple factors to provide the best overall fit to their budget. Those factors are regional climate zone, energy recovery ratio at the design flow range, and the ability to maintain performance over the life of the equipment.

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A Comprehensive Review and Analysis of Desiccants for Enthalpy Wheel Applications

As requirements for proper ventilation grow more stringent, it is vital for Engineers to properly consider energy recovery options to meet IAQ guidelines and minimize the energy cost of required outside air ventilation. In order to optimize the health benefits of outdoor air ventilation and to offset energy costs, many systems use Energy Recovery devices such as Enthalpy Wheels.

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AHRI Standard 1060 I-P 2018

This standard establishes a single set of requirements for the testing and rating of air flow rate, sensible, latent, and total effectiveness, and pressure drop of air-to-air energy recovery ventilation equipment; whereby, equipment performance ratings can be compared from product to product.

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AHRI Guideline W-2005

The purpose of this guideline is to provide information to support the application of Air-to-Air Energy Recovery Ventilation Equipment (AAERVE). This guideline supports AAERVE that is manufactured using Air-to-Air Heath Exchangers (energy recovery components) rated in accordance with ARI Standard 1060. These recovery components include Heat Pipe Heat Exchangers, Plate Heat Exchangers, and Rotary Heat Exchangers.

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ASHRAE Research Project 1254-RP

The objectives of ASHRAE Research Project 1254-RP "Evaluating the Ability of Unitary Equipment to Maintain Adequate Space Humidity Levels, Phase II" were: a) to compare various unitary air conditioning system humidity control configurations in terms of humidity control performance and operating costs; and b) develop guidelines to help identify the important application characteristics and climate factors that determine which option is most appropriate.

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SHR Report

There is a mismatch between the SHR of the typical unitary air conditioner and that of the typical building load. The resulting loss of indoor humidity control can cause structural, comfort and health problems. Enthalpy recovery ventilation systems can address these issues by allowing standard unitary packaged cooling equipment to closely match building SHR, while conserving energy and reducing peak demand.

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Acceptable Cross Leakage for Energy Recovery Ventilation REVB

Per ASHRAE Standard 62.1, HVAC system designers have clear-cut parameters for allowable energy recovery ventilation (ERV) cross leakage/cross contamination. This white paper is intended to provide a summary of the key elements of this addendum.

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Benefits of Planned Replacement

When properly implemented, a planned replacement strategy has significant advantages for the contractor, the building owner, and the utility.

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Dieckmann Ashrae Article

Industry article describing how ERV will allow unitary air-conditioning equipment to maintain the indoor relative humidity within the desirable 40% to 50% range under virtually all conditions, including high humidity outdoor conditions.

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ERV comes of Age

Industry article describing the increase in popularity of ERV technology coupled with standard unitary equipment along with its benefits.

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Payback

An example of typical energy recovery wheel payback.

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Increase Dehumidification

Outdoor air represents the largest source of moisture in most buildings. On hot and humid days, Airxchange® wheels dehumidify outdoor air without condensation. On cold and dry days, Airxchange® wheels humidify the outdoor air minimizing the need for additional building humidification

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