Is your Mechanical Engineering Consulting Firm Getting Too Expensive?

Consulting services normally come with a price premium because they grant access to the knowledge of mechanical engineering experts, on demand and with the exact time commitment needed by the client. The alternatives to hiring consulting services are to train specialists in-house, which requires plenty of time; or hiring experts full-time, which is not always cost-effective. Of course, this doesn’t mean consulting services should be overpriced either. Consulting firms and their clients can [...]

How to Select a Contractor for Mechanical Engineering Projects

Tips for Effective Contractor Selection in Engineering Projects One of the key elements that determines project success is selecting the right contractor for the job. Although it may be tempting to focus on minimizing cost, a better approach is to maximize value and optimize cost. After all, a mechanical engineering project of any kind is an investment; the best offer is not always the one with the lowest price, but the one that offers [...]

Mechanical Engineering Design Options to Heat and Cool Residential Buildings

There is a broad range of mechanical engineering and design options available for meeting the heating and cooling needs of residential buildings. Normally, these systems differ in terms of the medium used to deliver their heating or cooling output. Water Piping: Water source heat pumps, radiators using chillers, cooling towers, and boilers. Air Ducts: Packaged rooftop units, packaged ceiling hung units Refrigerant Lines: Split AC systems, VRF systems Direct: Used by window-type air conditioners and PTAC units, which operatedirectly [...]

How Mechanical Engineers Compare Operating Expenses of Different Water Heater Models

One of the key characteristics to consider when deciding between several water heater options is the operating cost; the heater with the lowest price tag is not necessarily the least expensive to own in the long term. Operating cost is determined in great part by equipment efficiency, but there are other equally important factors that mechanical engineers want you to consider: Energy sources have different unit prices. In the case of heating systems, the [...]

Mechanical Engineers Design HVAC Systems for Sensitive Environments

A well-designed HVAC system keeps temperature and moisture within a range that is considered comfortable for humans, while constantly renewing the air in a building and filtering out pollutants. Mechanical engineers are, in large part, responsible for ensuring that an HVAC system is operating as it should. The system must also provide an adequate airflow, since stagnant air and draftiness are both detrimental for performance. In most residential and commercial settings, deviations from the ideal [...]

The Mechanical Engineers Guide to LEED Certifications and Credentials

LEED stands for Leadership in Energy and Environmental Design, and it is the most widely used certification system for green buildings by mechanical engineers throughout the world. According to the US Green Building Council, developer of LEED, over 1.85 million square feet of built environment are certified daily. LEED offers various certification frameworks, adapting to the needs of all types of projects. The certification is based on accumulating points across various sustainability categories, and [...]

Financial Analysis: Your Next Mechanical Engineering Project

Basics of Financial Analysis for Engineering Projects Mechanical engineering decisions have a significant impact on the total cost of owning a building: they influence the cost of new constructions and renovations, as well as operation and maintenance expenses in existing facilities. The most challenging decisions are normally those that raise some costs while reducing others; for example, using LED fixtures instead of fluorescent tubes raises the upfront cost of the lighting system, but drastically reduces energy [...]

A Guide To Cooling Towers, Chillers and Boilers: What Mechanical Engineers Want you to Know

Functions: Heating and Cooling Experienced mechanical engineers find that water-cooled chillers tend to offer a significant energy efficiency advantage when compared with the use of separate PTAC units. Although they are centralized systems, modern units come equipped with variable speed compressors that can ramp their output up and down depending on the current cooling load. Water-cooled chillers operate with two water circuits: The chilled water circuit circulates throughout the building, and hydronic fan-coils are used [...]