Helping Meet Energy Conservation Goals
Water and energy go hand in hand. It takes energy to pump, treat, heat, and cool water for boiler and cooling systems. Not only can optimizing water usage help minimize energy usage, but managing scale deposits, corrosion, and biofilms also play a role in energy demands.
Boiler and cooling water systems require substantial amounts of energy to run our modern-day world. Proper water management can help reduce and optimize these energy demands. Multiple strategies are available to help meet energy-saving objectives, including optimizing water chemistry, improved pretreatment, preventing scale deposits, reducing water waste, and equipment maintenance.
Helping Meet Water Conservation Goals
Water is an ultimate sustainable resource. The hydrologic cycle works to continuously return water to nature for reuse. The challenge is to find enough usable water without overtaxing nature’s ability to replenish the local water supply.
As a large consumer of fresh water, boiler and cooling systems are obvious targets for water conservation efforts. When properly managed, reducing water usage for these systems can have the added benefit of reducing the total costs of operation. There are multiple strategies to help meet water-saving objectives, including management and control of water chemistry, makeup water pretreatment, use of alternative water sources, and equipment maintenance.
Resourcefully Green® Initiative
As the global population grows and the demand for water, energy, and other natural resources increase, it is important to responsibly manage and use all our resources wisely. An effective water treatment program helps maximize the life, efficiency, reliability, and safety of boiler, cooling, closed loop, and wastewater systems and minimizes water usage, energy demand, greenhouse gas emissions, and total costs.
Properly measuring ORP (Oxidation-Reduction Potential) and understanding its limitations when used to monitor and control oxidizing biocide feed is important to minimize the potential for increased corrosion rates, excessive chemical feeds, and biofouling.
The HVAC system is the largest user of energy and water in typical commercial buildings. In the past, energy costs overshadowed water costs. Recent droughts and the need to expand municipal water supplies to support growth have led to increased water costs nationwide. Combined with the focus on water conservation in green buildings, the payback associated with reducing building water usage is greater than ever. Most commercial buildings use water cooled chillers to provide air conditioning because they are much more energy efficient than air-cooled chillers. Achieving these efficiencies, however, requires large quantities of water to operate a cooling tower. Most buildings also use re-circulating hot and chilled water loops to distribute heating and cooling throughout the building. Although not designed to routinely use water, these systems can use large amounts of water if undetected leaks occur. As the major consumer of water, the building HVAC system is an obvious target for water conservation efforts and often provides significant saving.