Category: Solutions

In the old days, telecommunications consisted of only the telephone network, and the design services were provided free of charge by the local telephone company. The internal personnel responsible for this design were known as the BICs, or building industry consultants. The fee for this design was covered by telephone subscribers as a part of their regular service.

Back then, coordination was not a major concern. BICs would work with architects and engineers in the planning phases and continue throughout construction by working with the contractors.

But all of this changed with industry deregulation in 1984. Not only did it break up the phone company into the regulated bell operating companies for local service, with AT&T continuing to provide long distance, but it also shifted the ownership of the cabling in a facility to the customer.  more

On the surface, vivariums housing rodents are very similar in function, use, and frankly, design. Generally, they include holding rooms, procedure rooms, cage washing facilities, necropsy, and various other support spaces. Likewise, heating, ventilating and air conditioning (HVAC) systems serving these spaces can also be fairly typical.  more

In its simplest sense, commissioning verifies that systems operate in a manner consistent with construction or procurement documents. This includes identifying and labeling devices, cabling and equipment; cleaning; preparing O&M documentation; testing and adjusting; and training personnel more

Despite the recent scrutiny and criticism of primary-secondary chilled water pumping systems, many owners still decide these systems are appropriate for their facility. Factors such as simplicity, familiarity, and experience are considered, in some cases, to have benefits to the owner that overshadow efficiency and first costs. Primary-Secondary pumping is not appropriate for all projects, but when the decision has been made to use it, properly addressing technical aspects of such designs and adequately addressing facility users’ needs significantly contributes to the project’s success. This article explores key issues to consider when designing a primary-secondary chilled water plant. more

When the U.S. Environmental Protection Agency classified environmental tobacco smoke (ETS) as a Group A carcinogen, many state and local codes began requiring restaurants and entertainment facilities to provide designated smoking areas that prevent smoke from being recirculated to nonsmoking areas.

For consulting engineers, these smoking areas open up whole new concerns—and special commissioning needs. The following case study is a primer on HVAC commissioning with special attention to smoking areas in these venues.  more