Laboratory setup for RTU performance characterization at NREL

NREL: Performance Evaluation of Three RTU Energy Efficiency Technologies

 Produced under direction of ComEd by the National Renewable Energy Laboratory (NREL) under Technical Services Agreement TSA-19-01159  The simulation results predict considerable annual energy savings for all the upgrade scenarios. The following energy-saving ranges were observed:  As expected, RTUs with a variable-speed compressor (Case 2 and Case 5) showed superior performance compared to RTUs with single-stage and two-stage compressor. This …

Lab test of Turntide smart motor SRM

Software-Controlled Switch Reluctance Motors

Prepared by:Emerging ProductsCustomer ServiceSouthern California EdisonAugust 2018 This project measured the performance of an emerging technology nominal three-horsepower (3HP) high rotor pole Switched Reluctance Motor (SRM) with software-controlled inverter, compared to a baseline nominal 3HP baseline induction motor controlled by a Variable-Frequency Drive (VFD) in laboratory testing, and a nominal 3HP baseline single-speed induction motor for field testing.The difference in …

Bolder Energy Engineers (BEE) Logo

BEE Motor Downsizing Report

Prepared by:Bolder Energy Engineers1320 Pearl St. Suite# 240Boulder, CO 80302www.bolderee.com Motors that drive supply or return air fans in heating, ventilation, and air-conditioning (HVAC)systems rarely operate at their full-load point and in fact generally operate at under their ratedload. Instantaneous load measurements conducted as part of the Motor Systems Inventory foundthat over 40 percent of motors in use were operating …

Wells Fargo Innovation Incubator (IN2)

IN2 Final Report – Turntide Technology Demonstration (2023)

TO: Wells Fargo Innovation Incubator (IN2) Board of DirectorsFROM: National Renewable Energy Laboratory (NREL)DATE: April 2023IN2 Company Name: Turntide Technologies (demonstration project) It is possible that Wells Fargo is not using enough supply airflow for cooling. The manufacturer suggests 2,000 cfm for the five ton RTU at the Englewood site.Based on the power consumption witnessed during this field evaluation of …

IN2 Report - Control Strategies for Turntide Motors in RTU Applications (2018)

IN2 Report – Control Strategies for Turntide Motors in RTU Applications (2018)

IN2 Final Report   TO: Software Motor Company, Wells Fargo IN2 Board of Directors, Wells Fargo Corporate Properties Group  FROM: NREL  IN2 Company Name: Software Motor Company  Period of Performance: April 20, 2017-October 1, 2018  Date of Publication: November 29, 2018  It is estimated that 38.4% of the total U.S. electrical energy consumption is used to run motors.1  Annually, 45 …

Wells Fargo Innovation Incubator (IN2)

IN2 Report – Turntide Savings By Climate (2022)

It is estimated that 38.4% of the total U.S. electrical energy consumption is used to run motors. Annually, 45 billion kWh are used by 1-10 horsepower motors, alone. Even a small increase in motor efficiency could greatly reduce energy consumption. Turntide has developed a patented High Rotor-Pole Switched Reluctance Motor (HRSRM) system that can achieve up to 95% peak motor …

System Efficiency vs. Torque - V03 (10HP) at 1800 RPM Graph

HVAC Energy Conservation: A New Approach That Outperforms VFD Retrofits

Turntide Smart Motor System vs VFD Retrofits The Turntide Smart Motor System offers a new approach to HVAC energy conservation that outperforms VFD retrofits. It provides key benefits such as improved efficiency, intelligence and monitoring capabilities, energy savings reporting, and reliability. The motor design of Turntide motors reduces the risk of winding failures found in induction motors. The user experience …

Switched-Reluctance Motor Field Evaluation

ComEd SRM Field Report 2022

Between July 2020 and Feburary 2022, Slipstream conducted a field investigation of switched reluctance motors in a project funded by Commonwealth Edison (ComEd) Energy Efficiency Program. For this pilot, the Turntide Smart Motor System technology was used at a commercial office building in Schaumburg, Illinois and two retail stores in Countryside and Norridge, Illinois. Switched-reluctance motors, or SRMs, operate by …