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WAI provides state-of-the-art mechanical, plumbing, and electrical design engineering services for: governmental, military and federal, educational, religious, commercial, mission critical and high end residential projects. Below are the design services WAI specializes in.
WAI has been providing mechanical design services since 1992. Our services have included: HVAC, energy management and modeling, acoustics, fire protection and life safety, commissioning, and energy analysis. WAI has performed existing systems assessments, energy conservation, life cycle cost, and retrofit and feasibility studies as well as new construction and retrofit designs for over 700 projects totaling in excess of 10 million square feet.
WAI has built a reputation for providing high-end mechanical engineering consulting service through our experience at maximizing HVAC system energy efficiency within the confines of the project budget. We have accomplished this by selecting the appropriate high efficiency HVAC components and system for the application.
Another specialty WAI engineers provide, is the design of Energy Management Systems (EMS). Our EMS designs typically control all project HVAC equipment and provided energy saving control features such as: scheduling, optimum start/stop, duty cycling, and demand limiting. Often we will integrate other miscellaneous system motors, such as the operable skylights on our Asia Trail II project at the National Zoo. In addition our EMS designs have provided several maintenance advantages, including: run time maintenance, totalizing, reports, logs, alarming, and remote diagnostics. All of our EMS designs have provided remote operator monitoring access and control.
■ Heating, Ventilation, and Air Conditioning Systems (HVAC )
■ Energy Management & Modeling
■ Acoustics
■ Commissioning
■ Energy Analysis
WAI has developed an expertise in plumbing over the past 15 years. Our plumbing design services include: determining required plumbing fixture counts, fixture selection and layout, domestic water system designing, sanitary-waste-out system design, storm water design and special waste design. Our design software and analysis tools allow us to determine fixture units and pipe sizes, as well as perform material take-offs seamlessly within our Computer Aided Design and Drafting (CADD) approach. WAI has provided plumbing services for several high profile projects, such as The Pentagon in Washington, D.C.
WAI’s electrical design includes: power distribution, lighting design for interior and exterior spaces, communication and security systems, and special control systems.
WAI has designed more than 400 lighting projects of various sizes over the last 15 years. Some project types have included: wholesale lighting retrofits primarily motivated by energy conservation, complete redesigns driven by a desire for improved aesthetics coupled with energy conservation, energy efficient retrofits of older lighting fixtures driven by energy code requirements, lighting studies for existing facilities, and new construction. Power distribution system design includes: main electrical service (primary, secondary and power transformer), main switchboard and distribution panel, branch circuit panelboards and protective devices, distribution transformers, feeder, branch circuits calculation, power riser/wiring diagram, grounding system, and TVSS protection. WAI also performs power system analysis for all projects. Power system analysis includes: load flow analysis and voltage drop calculation, short circuit study, arc flash analysis, protective devices coordination study, power quality and harmonics analysis.
WAI also routinely designs emergency power systems including emergency/stand-by generator and uninterruptible power source (UPS) for various project types. These range from emergency power systems to address minimum code emergency illumination needs, to critical power applications. In critical power applications we have designed systems which address: single, double, and triple failure conditions.
We take pride in our special expertise of designing lighting control systems that are aesthetically pleasing, energy efficient, and cost effective. Several different lighting control strategies we have implemented are: light harvesting systems, dimming systems, multi-level switching systems (including bi-level switched troffers), occupancy sensing switching (using dual technology sensors), and individual task level control.
■ Power Distribution
■ Lighting Design (interior and exterior)
■ Communication & Security Systems
WAI performs a large percentage of construction administration services every year. A large portion of our portfolio is design-build projects, including over $100 million worth of construction at the U.S. Capitol Square. During the construction phase the following services can be provided: complete construction administration, full time on-site representation, commissioning services, construction phase RFI’s, shop drawing/submittal review, shop drawing production, pre-fabrication drawing production, construction site inspections, installed construction value review and approval, substantial completion certification, and project close-out services.
In addition to the above services, WAI provides the following post construction services: commissioning services, functional and operational performance tests, as-built verification and documentation, corrective measure determination, operator training, maintenance program development, and one year anniversary inspections.
■ Construction Administration
■ Construction Coordination Drawings
■ Design-Build Teaming
■ Pre-Purchase Inspection
WAI’s fire protection engineering services include design and analysis of fire alarm systems, fire suppression systems, smoke control systems and life safety egress illumination and guidance. Our fire suppression system designs have included: wet and dry pipe fire systems, preaction and deluge sprinkler systems, standpipe systems, fire and jockey pumps, onsite fire water storage and gaseous extinguishant systems (including FM 200 and Intergen). Other special use spaces designs have incorporated smoke control system, including: smoke evacuation, floor pressurization control, elevator shaft venting, and stairway pressurization systems.
■ Fire Alarm Systems
■ Fire Suppression Systems
■ Smoke Control Systems
■ Life Safety Lighting
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