WHITE PAPER

Energy-Water Nexus Toolkit: Resources and Best Practices for Using Energy and Water More Efficiently

Companies everywhere work on environmental projects that are external to their footprints. Corporate Social Responsibility (CSR) and Sustainability teams at individual companies work on projects around the globe to improve the environment by increasing the efficiency of energy and water systems, collectively known as the Energy-Water Nexus.

From installing new wells to improving power grids, these projects are important to improving the communities that companies have an interest in because of a local production center, growing market potential, or a need for these types of projects. Making water and electrical systems more efficient can be vital to improving water quality and energy availability around the world.

When it comes to instituting Energy-Water Nexus projects and efficiencies within a company’s space, these considerations often fall under the purview of Operations teams. Finding a way to execute nexus projects, both internally and externally, is an essential aspect of multiple parts of a company’s goals. It is necessary to both share best practices for these types of projects and figure out how different parts of a company can work together to execute them.

The International Association of Plumbing and Mechanical Officials (IAPMO Group) and the U.S. Chamber of Commerce Foundation (USCCF) have designed this toolkit to help CSR, Sustainability, and Operations staffs in three ways. First, it gives a brief overview of the Energy-Water Nexus, including the history, issues, and risks surrounding the nexus. Second, it illustrates how the CSR, Sustainability, and Operations staff of a business can work together to pursue more efficient resource management both in-house and in the broader community. Third, it offers practical solutions to different Energy-Water Nexus challenges that can translate into real cost savings, greater profits, and positive environmental impacts.

Adaptive Reuse: Converting Offices to Multi­Residential Family

Adaptive reuse of commercial office spaces to residential multifamily offers opportunities to ease some of the housing shortage in the US. These types of construction projects have many challenges, from zoning restrictions, financing, and also controlling construction costs. Construction costs specifically can have a disparate impact on whether an adaptive reuse project is possible, let alone successful. Therefore, flexibility during the construction process is vital to the success of an adaptive reuse project. Codes for plumbing and mechanical systems that support design versatility and science-based methods, such as the Uniform Codes, will be essential for controlling construction expenses.

Capacities of Stacks and Horizontal Drains in Storm Drainage Systems

The sizing for storm drainage systems are dependent upon flow capacity equations used to calculate velocities and flow rates in pipe conduits. One of the variables in the equations is the coefficient of roughness. This paper explores how the roughness of different types of material will change the computational results that are dependent upon the roughness coefficient of the pipe.

Increase in Flow Diversity From Simultaneous Fixture Use: Impact on Peak Flow Estimate

In calculating peak water demand, there can be instances where an increase in fixture count results in a decrease in the expected peak demand. This white paper explains why this counterintuitive result can occur, especially when there is some probability of stagnation (i.e., zero demand). Using IAPMO’s Water Demand Calculator (WDC), we are not designing with zero flow in mind; hence, zero flows are ignored, and the 99th percentile is extracted from actual flows for any combination of busy fixtures.

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