President's Corner

AS we start the New Year, we hope we all have a prosperous 2012. We have a great second half of the year planned. The Winter Party planning committee is in the process of planning the 6^th annual Winter Party on the 28^th of January. As in years past, this festive event will be at the Hotel Monaco in Alexandria...>more

 February PES Topic

Dedicated Outdoor Air Systems
-Speaker: Stanley Mumma

Dedicated Outdoor Air Systems (DOAS) with parallel sensible heating/cooling equipment have rapidly become the building mechanical system of choice as mankind strives toward a green and sustainable future, replacing recently popular VAV and other conventional mechanical systems. 

The two principle reasons for this advance are DOAS's superior humidity control and ventilation delivery performance.  In addition to these two, DOAS systems have the potential to overcome all 8 of the inherent VAV problems that will be discussed.  DOAS are rapidly exhibiting enhanced first and operating cost improvements along with enhanced indoor environmental quality (IEQ).

A host of important DOAS design considerations will be addressed in the presentation including:

• Parallel terminal equipment options,
• The loss of full air side economizer,
• Total energy recovery selection and control issues,
• Building pressurization--(impact, when and how much),
• Reserve capacity,
• 30% surplus OA for a LEED point,
• Selecting the DOAS SA conditions (DBT, DPT),
• A few examples along with a decision matrix,
• Conclusions.  

Time: 
PES 3:15pm - 6:00pm
Social 5:45pm - 6:30pm

February Dinner Topic

Energy Modeling - Case Studies Throughout Various Project Stages
-Speaker: Oliver Baumann

Energy Modeling can do more than just verify the number of points towards a LEED certification.  In fact, Energy Modeling comes in a great variety of applications and can be anything from simple individual zone load calculations, multiple zone simulation to analyze the performance of design solutions such as radiant heating and cooling, natural ventilation, envelope and shading alternatives, integrated lighting controls, etc., or even whole building simulation including the entire mechanical systems.  On an even broader level, energy modeling is used to support community energy plans to establish an energy baseline and evaluate energy efficiency scenarios.

This presentation will give insight into the different aspects and variations of energy modeling, how they can be applied at different stages of a project, what results can be expected and how modeling iterations can contribute to the design of high efficient buildings.  The presenter will use various case studies from LEED projects, low and net-zero energy buildings, model calibration, as well as integrated community energy master plans to describe the capabilities of Energy Modeling and how the results have been vital to the outcome of these projects.

Time: 
Social 5:45pm - 6:30pm
Dinner 6:30pm - 7:15pm
Presentation 7:15pm - 7:45pm
Wrap-up 7:45pm - 8:15pm

We will need 8-10 volunteers for each timeslot from 9:45 AM-4:45 PM

Project: Hot Snakes, Parachutes, and Balloon-Pull

Please see Omar Hawit (ohawit@wrldesign.com) for sign up!