Mainstream Engineering Develops a Low-Cost Energy-Saving Device for A/C Systems
R&D Opportunity Refrigeration and air conditioning in buildings account for approximately 8.5 quads of U.S. primary energy consumption. Under a DOE-funded SBIR award, Mainstream Engineering Corporation was able to explore practical, cost-effective methods to reduce the energy consumption of residential and small commercial air conditioning systems. The goal of this work was to demonstrate simple, easy-to-install systems for reducing the energy consumption and improving the life of existing and new air conditioning and heat pump systems.
Solution A result of this research produced the QwikSEER+ WattSaver™, an electronic control board that operates in the cooling mode of a new or existing air conditioner or heat pump. By varying the airflow of the blower motor, this technology optimizes the airflow of the air conditioner, thus reducing the total energy consumption and improving humidity control and mold control.
Impact Because the Mainstream technology allows the evaporator airflow to be continuously and automatically adjusted, power consumption is reduced. Key to the benefits of Mainstream’s technology is that the modulation of the evaporator blower works on both new and existing A/C systems that are equipped with low-cost permanent split capacitor (PSC) motors resulting in efficiencies without the need to use far more expensive electronically commutated motors (ECM). This results in homeowners now having a low-cost alternative option to achieve higher efficiencies without the substantial cost of replacing the ECM and motor controller impact. Simply installing the QwikSEER+WattSaver™ control board in line with the existing PSC blower motor now allows homeowners to increase the A/C energy efficiency rating (EER) by 8%-14%.
Robert P. Scaringe
President and Founder Mainstream Engineering Corporation
|Company Name:||Mainstream Engineering Corporation|
|Project Title:||Phase Change Thermal Energy Storage for Residential Units|
|Award Type:||SBIR Phase II|
|Year of Award:||2011|
|DOE Office:||Office of Energy Efficiency and Renewable Energy|
|DOE Grant Number:||DE-FG02-10ER-85667|
*The U.S. Department of Energy does not directly endorse this or any other Mainstream Engineering product.