Researchers from the UK and Spain have identified an eco-friendly solid that could replace the inefficient and polluting fluids used in most refrigerators and air conditioners When put under pressure, plastic crystals of neopentylglycol (NPG) yield huge cooling effects—sufficient to make them competitive with conventional liquid coolants. In addition, the material is inexpensive, widely available… Read more »
GROUND BREAKING! High-Efficiency Run Around Energy Recovery Systems Reducing Energy Consumption up to 80%! FIRST there were glycol run around loops 40% efficiency THEN came plate and frame heat exchangers 60% efficiency NEXT came heat recovery wheels 70% efficiency NOW, high-efficiency energy recovery coils UP to 80% EFFICIENCY! Konvketa guarantees the amount of energy recovered!… Read more »
Massachusetts Ranks #1 as Most Energy Efficient State for 8th Year in a Row As the US government loosens environmental rules, states are investing more in energy efficiency and delivering increased power savings, according to the 2018 State Energy Efficiency Scorecard. This 12th annual report from the American Council for an Energy-Efficient Economy (ACEEE), identifies the leaders… Read more »
Project Name: Amherst College Science Center Architect: Payette Associates Inc. Mechanical Engineer: Van Zelm Engineers Mechanical Contractor: Harry Grodsky & Company Equipment: Glycol Energy Recovery System with 20 AHU coils, 16 HRU Coils and Steam Humidifier Manufacturer: Konvekta DAC Sales Engineer: Rich Clarke Project Overview: During the past 15 years, enrollment in STEM classes increased… Read more »
Project Name: University of Vermont STEM Complex Architect: Freeman, French & Freeman, Inc. Mechanical Engineer: BR + A Consulting Engineers Mechanical Contractor: VHV Company Equipment: OA Intake and EA Discharge Plenums Manufacturer: Konvenkta, Size: 148,300 CFM DAC Sales Engineer: Brad Carpenter Project Overview: The University of Vermont’s $104 million investment in a new Science Technology… Read more »
Project Name: Harvard University Biology Lab HVAC Upgrade Architect: Perkins & Will Mechanical Engineer: Rist-Frost Shumway Engineering Mechanical Contractor: J.C. Higgins Equipment: Pumped Glycol Energy Recovery System and High Plume Laboratory Dilution Fans Manufacturer: Konvekta, MK Plastics Size: 144,000 CFM DAC Sales Engineer: David Goodman Project Overview: This project replaces the Biolabs’ aged HVAC infrastructure with… Read more »
Topic: Energy-Efficient Makeup Air Units Guest Blogger: Hugh Crowther, P.ENG., Ashrae Member Unless you live in paradise, delivering makeup air to most buildings is expensive. Table 1 shows the amount of work it takes to heat and cool air (based on Chicago conditions) for a standard rooftop unit (a unit that recirculates air with typical… Read more »
Topic: High Performance Run Around Energy Recovery Systems Guest Blogger: Rudolf Zaengerle, Ph. D. Konvekta USA, Inc There is some confusion about the terms ‘efficiency’ and ‘effectiveness’: Efficiency ASHRAE defines ‘temperature transfer efficiency’ (or sometimes ‘enthalpy transfer efficiency’ if enthalpy is used instead of temperature) as follows: μT = (TE1 – TE2) / (TE1 –… Read more »
Konvekta is the only supplier of high efficiency pumped glycol run-around energy recovery systems in the world. They have been in the business of pumped glycol energy recovery since 1949. That’s all they do. Konvekta offers complete systems – high performance heat exchangers, energy recovery system controls and hydraulic assembly. Konvekta high-performance energy recovery systems… Read more »
Konvekta is the only supplier of high efficiency pumped glycol run-around energy recovery systems in the world. They have been in the business of pumped glycol energy recovery since 1949. That’s all they do. Konvekta offers complete systems – high performance heat exchangers, energy recovery system controls and hydraulic assembly. Konvekta high-performance energy recovery systems… Read more »