research, analysis, discovery, illustration, word group, development
Blog | May 28, 2019
Refrigeration is a massive energy suck in commercial and industrial buildings. So much so that tremendous effort has been put into measures to reduce energy use in refrigeration systems across the country. Even though the industry has worked tirelessly to install system controls, there is still a long way to go. Our research team has continued to look for more aggressive solutions in the refrigeration world. More
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hybrid ground-coupled heat pumps
Tool | January 1, 2019
Reduce the cost of implementing geothermal heat pump systems on your building projects by going hybrid. A hybrid geothermal heat pump system can lower your costs by reducing the peak capacity of your ground loop and allowing you to install a smaller, less expensive ground heat exchanger. HyGCHP is a software module that can help you analyze this option! More
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Hybrid system
Research | December 20, 2018
Go hybrid with HyGCHP (hybrid ground-coupled heat pumps) Reduce the cost of implementing geothermal heat pump systems on your building projects by going hybrid. A hybrid geothermal heat pump system can lower your costs by reducing the peak capacity of your ground loop and allowing you to install a smaller, less expensive ground heat exchanger. HyGCHP is a software module that can help you analyze this option! More
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daylight controls
Research | December 20, 2018
Proper commissioning can lead to energy savings—often 60% or more Daylighting control, or daylight harvesting, has become a common energy savings strategy in many sustainable building projects, but several barriers still prevent successful implementation of this strategy in mainstream construction. Considerable effort is expended in the architectural and lighting design of daylighting controls, with actual execution being an afterthought. More
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VRF
Research | December 20, 2018
Application of air source variable refrigerant flow in cold climates Variable refrigerant flow (VRF) systems use variable speed, split heat pumps to provide space heating and cooling to a building's conditioned areas. Air source VRF systems perform best in moderate climates, as they typically lose capacity and efficiency at low ambient temperatures—or moderately low wet bulb temperatures where defrost is required—and may be supplemented by an additional heat source. More
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Piping
Research | December 19, 2018
Energy savings and lessons learned from observed, practical approaches to demand control ventilation Demand control ventilation (DCV) systems use sensors — generally either CO2 or occupancy sensors — to estimate the actual number of people in an area and supply only as much ventilation air as is needed at a given time. DCV has the potential to save a substantial portion of building energy use in extreme climates like the northern Midwest. More
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Scott Hackel
Team | December 15, 2018
Scott consults with architects and engineers on energy efficient building designs and systems. He also conducts applied research on technologies and processes through both field monitoring and extensive energy modeling. He has specialized in the study of ground source heat pumps and lighting and HVAC controls. Scott is an active member of ASHRAE at both the local and national level; at the national level being an integral part of the geothermal energy technical committee. He's also a member of USGBC Wisconsin. More
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Building systems integration
Blog | September 11, 2018
A couple of years ago, my team conducted a research project investigating how to reduce the energy use of office plug loads. Among the solutions we tested, one option was a power strip with an occupancy sensor. It shut off your monitors and other gadgets when you were away from your desk. Many buildings we investigated also had occupancy sensors controlling the lighting in the same office space. One of the offices we tested had yet a third occupancy sensor network – and CO2 sensors to control the HVAC system in some spaces. More
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