19Feb 2018
Is Over-Engineering Overkill? JPW Group looks at the negative effects of over-engineering
Is Over-Engineering Overkill?  JPW Group looks at the negative effects of over-engineering

In engineering, to achieve the best results, installed capacity should match requirements as closely as possible. As many engineering companies in UAE have seen, building systems that are oversized tend to result in performance issues, and the consequences are likely to be both financial and technical.

It starts at the design phase…

The larger the equipment, the more expensive it tends to be. Many companies will try and use ‘rule of thumb’ decisions in order to speed up the design process and reduce cost. However, that can directly lead to overspending during installation. Instead, MEP consultants in Dubai should suggest working with a design firm that takes the time to calculate vital building requirements. This will include, but not be limited to, lighting levels, space heating, space cooling and water heating. These calculations, when analysed, are used to specify equipment of matching capacity.

Complications continue during the construction phase.

Engineering consultants in Dubai will consider the knock-on effect of over-engineering increasing the cost of other installations. Let’s take a chiller plant, used to provide cooling to larger buildings and multiple building campuses, as an example. If it’s bigger than necessary, the electrical installation supplying it with power will need to be bigger too, including higher-capacity conductors, protection devices and transformers. Now apply this to each of the building’s systems and you’ve got an expensive oversight on your hands.

Oversized equipment has an adverse impact during operation, too…

During a system’s entire service life, it will require energy input. Now increase this input to match the oversized installations. For example, oversized lighting will require more electricity and oversized boilers more fuel. Yes, technologies exist to reduce output, but to keep this under control at all times, engineering companies in Abu Dhabi and Dubai should suggest getting it right from the beginning. Higher input means higher costs and a higher chance of breakdowns.

Leading to an increased need for maintenance…

Oversized systems not only need larger equipment parts, which are more expensive, but they also tend to operate in shorter cycles (such as HVAC systems). This can increase the rate at which mechanical components are worn down, which results in an increasing need for parts to be replaced. Couple this with the likelihood of increased noise and vibration, and you have a whole host of costly and unwelcoming distractions. Buildings will inevitably need maintenance but the frequency and the scope can and should be kept under control.

And can cause indoor air quality issues.

Over-engineered systems regularly struggle with balancing the variables that are key to ensuring a clean and comfortable indoor environment. With an oversized air conditioner, interiors may have uncomfortably low temperatures as well as humidity issues because shorter cycles do not operate efficiently. These lower temperatures and high humidity are the wrong environment for building inhabitants but are perfect for some indoor air contaminants to thrive.

To learn more about how well-engineered systems can help your project, contact JPW Group at info@jpwgroup.co.

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