Our three engineering interns have been hard at work this summer! Check out how they have been assisting our design teams!Read More
For renovation work, we always visit the project site. Here we discuss why this is an core principle for all projects.Read More
Figuring out how to study for a test that is more than six months away doesn't have to be a daunting task.Read More
Late addition to the list: Massive quantities of post workday coffee!Read More
How I studied? Hard and a lot. Blog post over.Read More
Since the start of the year, we have been adding depth to the roster! In the first half of the year, our Leesburg, Virginia office added additional staff in the electrical and plumbing engineering departments. Ken Poulter and Jhonny Suarez Diaz have added a great amount of experience and training to the company as well as a great culture of excellence in their work.
Ken has over 30 years of experience in the plumbing engineering field; including over 20 years as a studio director and/or plumbing department head. In addition to design expertise of sanitary, water, natural gas, and medical/compressed air systems, his experience has provided him with extensive multi-disciplinary exposure and building code knowledge. He serves with DesignTech as a plumbing designer, project manager, quality control resource, and business development team member. His responsibilities also include development of project specifications and construction administration.
Jhonny has fourteen years of experience in the Electrical Engineering field as both a master electrician and electrical engineer. His experience has provided him extensive knowledge of the National Electrical Code, electrical installations and maintenance, and project troubleshooting. In addition, he has specific experience with development and implementation of method of procedure (MOP) protocols, and assessment of mission-critical infrastructure systems for safeguarding data center uptime. His skills also include assessment of energy consumption for periodic efficiency figures (PUE) as well as whole project data. His responsibilities at DesignTech include building site visits, investigative reports, project engineering, construction administration, development of specifications, cost estimates, and lighting calculations.
Most recently, Ross Lynam has joined our Kensington, MD office as a mechanical engineer. Ross graduated this year from Penn. State University with a Bachelor of Science in Mechanical Engineering. Ross has already worked on several projects in both the private and public sector and is poised to become a more independent project engineer with each project he has under his belt.
Read more about Ross, Jhonny, and Ken by clicking on their photos below!
For the last few years, DesignTech has been providing architects with informal continuing education topics including Variable Refrigeration Flow (VRF), HVAC 101, and a guide to DCRA Energy Verification Sheets. In an effort to further reward our AIA member attendees, we are pleased to announce that as of early this year, DesignTech has become an official American Institute of Architects Continuing Education System (AIA CES) Provider! We are now approved to develop curriculum and present face-to-face in Maryland, Virginia, and Washington, DC!
Thus far, the focus of what we can offer has been on our experience and solutions to common challenges faced by architectural/engineering teams. Specifically, we have developed our first course, offering "20 Products to get you out of a Bind”. This presentation is designated as a part of the health, safety, and wellness category (HSW) of continuing education; which in this case means a high focus on the deliverable to the client. The most common of these design challenges include:
- Spatial constraints
- Aesthetic functionality
- Code requirements
- Budgetary restrictions
- Acoustic requirements
- Thermal comfort
- A/E team coordination
One product in the presentation is a cable operated manual volume damper. This product, specified by the mechanical engineer, provides the ability for proper air balancing at air devices installed in gypsum board ceilings without a need for a costly/unattractive access door. Below is an excerpt from our presentation:
In presenting each of the other 19 challenges, we explain how the standard Mechanical/Electrical/Plumbing design products could fail to achieve the desired performance standard. We also detail how the solution product addresses each of these shortfalls. Finally, we provide a case study from work that DesignTech has completed where the product was used.
We have been fortunate to present this to six architecture firms over lunch and are still interested in sharing this information with more people! If you are interested in this presentation, and would like us to come over to your office, please reach out to us! You can contact our business development manager Kim Dize through email at firstname.lastname@example.org to schedule a date! We are looking forward to hearing from you!
Help us continue to make the built world better!
The AHR Expo can be overwhelming, that should be number one on the list. Three days with more than 68,000 engineers in front of thousands exhibitors, I think that's the definition of a nerd fest. Before I get too far, I was fortunate enough to go to the Expo because Havtech, one of our local product reps, was taking a group of its clients. I owe a special thanks to them for the incredible learning experience. During my time in sunny Las Vegas, I attended five different seminars, a number of manufacturer's hospitality events, and walked the showcase floor for a few hours. I was able to see new product releases, hear from market trend experts, and learn all kinds of solutions that can help me design better HVAC/R systems. The following are the four biggest takeaways from the Expo:
1. VRF is here to stay. Global trends show that Variable Refrigerant Flow (VRF) equipment is the largest growing sector of the equipment HVAC market and is projected to grow another 10% next year compared to a market average of 2% growth in the USA. We have shared in this trend with many of our retrofit projects in 2016 utilizing VRF. The VRF equipment as well as most mini-split systems utilize inverter compressor technology. This inverter technology is required by legislation in Europe though it is only in about 10% of compressors in the USA. Trend experts expect this be brought into the USA energy codes in the coming years. The only hindrance to VRF and mini-splits is changes in international trade partnerships which eliminate the competitiveness of the Asian manufacturer's products (LG, Mitsubishi, Samsung). Currently Daikin is the only manufacturer here in North America producing VRF equipment.
2. Closed loop water quality is a critical part of any retrofit (especially boilers). We see a number of projects each year where old cast iron boilers are being replaced with stainless steel condensing boilers that boast incredible efficiencies. If the new boilers are introduced to hydronic loops with debris and scale, the precision boilers can be ruined in as little as months. Likewise, if a new boiler is installed in a water/glycol loop that isn't properly flushed, cleaned, and filled the warranty is often voided.
3. Product highlight: EnOcean Alliance. EnOcean Alliance is a group of companies that are developing self-powered, wireless, control devices for everything from lights to humidity. Their series of products allows for the elimination of batteries, cabling, and control compatibility issues while now allowing things like light switches to be placed on glass, easy connection with building automation systems, and flexible room configuration. It's an awesome series of products https://www.enocean-alliance.org/en/home/
4. Occupant Comfort is King. The most common thread through each seminar was a focus on ensuring building occupants are comfortable. Comfort doesn't just mean having a thermostat in every room. Both new products and seminars focused on radiated energy flow and humidity (renamed by one presenter as building hydration) as additional key elements to maintaining high indoor environmental quality (IEQ). High IEQ helps landlords renew lease agreements, and helps occupants be more productive. In the case of hospitals, a lack of proper building hydration is now clearly linked to a rise in airborne bacteria and virus spread. Simply put, small water particle size, resulting from low humidity, allows for viruses and bacteria to remain in the circulated airflow for up to 48 hours. Even in less critical environments, count on occupant comfort being a category of design which is more closely paid attention to.
- Evan Bjorndal, Mechanical Engineer