Energy Efficiency related to commercial buildings is being analyzed by the DOE in a way to establish benchmarking for different building types within different climate zones. This has lead to average building energy footprint figures for most commercial buildings, yet the industry is now aware of how this new benchmarking will affect buildings and their lifecycle.  This presentation explains the complicated process of overall building energy efficiency, how this relates to DOE standards, and how this is related to other elements including potential Carbon Indexing (or Carbon Taxation). Closely tied to this discussion will be a brief connection to ASHRAE Standard 189.1 due to the characteristics of this standard and its impact on EUI.

This new ASHRAE standard was developed in coordination with USBGC and IESNA for the purpose of creating a code ready standard that addresses the overall building performance needs in establishing a minimum level of acceptance as to what is a “GREEN” building. ASHRAE Standard 189.1 incorporates ASHRAE Standards 62.1, 55, and 90.1 (all current versions) and the platform of LEED to develop code language explanations for all areas of a Green Building and what the building owner can expect for building performance. The presentation will address the following in reference to ASHRAE 189.1; (a) Why have it?, (b) Relationship to Other ASHRAE Standards, and (c) What is in the Standard. The content of the details of the standard will be covered in a general context (due to time) as it will outline the areas of the standard, show Mandatory elements within each area of the standard, and then illustrate the two paths of compliance (prescriptive and performance) for each area of the standard.

Many in our Industry struggle with how to communicate effectively with technical information, keeping on target, providing the reader with a proper roadmap of information, delivering all necessary information in a logical & clear format, and doing so such that anyone within our industry can understand the objective and the solution to a given situation or problem. This session illustrates a thought process along with a structure such that anyone can present a technical problem/situation and provide a clear and logical solution in written communication for others.

This presentation will examine “what is leadership”, “why ASHRAE needs leadership”, “why it is our responsibility to grow leadership within our local chapters”, and “how do you mentor generation Y into leaders”. The mentoring process is critical to this success and this presentation includes the elements of generation Y such to explain how these generations think, what their values are, and what makes them tick. In doing so the older generations (current leaders in most situations) can understand “how” to motivate and mentor generation Y into future leaders for ASHRAE and the HVACR industry.

This presentation will include the following elements; (a) a review of the Psychrometric processes, (b) defining state points of saturated air and how this creates the basis of the Psychrometric Chart, (c) the application of mixed air streams, (d) defining sensible heat ratio and applying this to the Psychrometric Chart, and (e) illustrating real world examples of HVAC systems to the Psychrometric Chart. The examples illustrated will include a common heating and ventilation unit with humidification, a 100% outside air unit used in process cooling applications where supply air temperature and absolute humidity are critical, a common VAV air handling unit with mixed return/outside air which must supply cooled air to satisfy a specific space Sensible Heat Ratio, and a more complex Dual Duct system where final supply air out of a diffuser can be calculated/illustrated through Psychrometrics (this example illustrates problem solving and integrates heat transfer equations of fluids).

This presentation looks at the evolution of HVAC within commercial buildings and how this impacts the energy footprint of buildings, how the DOE is viewing this in relationship to current and future energy efficiency demands, what should buildings owners today be doing with common HVAC systems, and what should our industry be doing to move forward and actually satisfy future needs for commercial building energy efficiency.

Water based systems have a long history of use in HVAC and provide many benefits; however, most of these systems are still being used as they were over 60 years ago.  Water has a high affinity for energy and we should be using it in a much wiser fashion.  This presentation will illustrate how to use water based systems to transfer energy more efficiently, save operational expense, help control systems operate with greater ease, and open other benefits to the overall building design and operation.

Outline

1. Introduction
2. Review the properties of water and energy transfer
3. Review of control valve operation
4. Review hydronic pump operation
5. Illustrate the differences of low delta systems verse higher delta systems
6. Illustrate other benefits due to changes in supply and return water temperatures

• To illustrate the mandatory requirements within section 10 of ASHRAE Standard 189.1-2014 related to building operation and maintenance
• To illustrate why proper building testing and commissioning creates the foundation for sustainable building operation
• To illustrate why the Building Operational Plan (BOP) is critical to owner expectations of sustainable building operation.

This presentation will provide a basic understanding of the global carbon cycle with a focus on how humans have affected the historical trends of the carbon cycle including the built environment. Knowledge of global warming and cooling dates back millions of years, but human involvement is limited to about 10,000 years. Thus, lessons can be learned from this global history when connected to the human historical impacts of carbon usage and creation via human actions. This presentation is intended to illustrate:

• Global cycles of natural warming and cooling – what happened and what was the connection to present day average global temperature trends.

• What is different today verses past known history of global average temperature change?

• How are carbon emissions and other GWP elements really impacting the global changes to our environment?

• How is the Built Environment connected to the historical trends in GWP emissions?

• What are the tipping points of GWP, and why are they vitally important to understand?

• Why Zero Carbon Emission based Building Operation is critical to humans, if we wish to achieve any reduction of Global Warming in the near and long-term future.

This presentation illustrates the details of advanced High-Performance HVAC Design and is intended as the next phase of learning beyond the current “Applied Psychrometric” DL presentation by Doug Zentz. Within this presentation the following will be illustrated:

• What are the Psychrometric needs related to DOAS systems for de-coupling the Latent Load of the building, and how is this accomplished efficiently?

• Many times, DOAS air supply must be very dry and yet closer to space set-point as to not upset occupants, how is this done effectively and efficiently with Psychrometric processes?

• When space loads are purposely stratified to the return air path, what happens differently to the Psychrometric processes of the space and the HVAC equipment?

• HVAC System Loads are real, so how can we utilize them to our advantage via Psychrometric Processes?

• What are some tips for success when sizing & selecting air handling units, so they perform as intended for detailed Psychrometric Processes?