Category Archives: Pumped Glycol Systems
Pumped Glycol Energy Recovery | Filtering Exhaust Air
Just skip the pre-filters in front of the exhaust side of the energy recovery device? Is that wise? We know that adding filters can impact costs: cost to purchase pre-filters labor to change disposal costs increased pressure drop This question … Continue reading
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Pumped Glycol Energy Recovery | Preliminary Design Questions
Preliminary Design Questions for a Pumped Glycol Energy Recovery System: Every energy recovery design starts with a list of questions that should be answered. If these items are explored and discussed early on it makes for a significantly better design. … Continue reading
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Ask Rick: Pumped glycol energy recovery systems | Reasons for poor performance in traditional systems
Q. You have mentioned that traditional pumped glycol energy recovery systems were your least favorite choice for air-to-air energy recovery. What are the reasons for that? A. It starts with efficiencies. Pumped Glycol systems in this country, until the recent … Continue reading
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Ask Rick: Glycol Run Around Loops | What is a typical face velocity for a pumped glycol system?
Q. What is a typical face velocity for a pumped glycol system like Konvekta? A. Konvekta pumped glycol energy recovery coils work anywhere in the range from 50-1000 FPM face velocity. It’s typical for coils to be sized between 350 … Continue reading
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Ask Rick: Glycol Run Around Loops | Why do we not use Ethylene Glycol in the USA?
Q. Why do we not use Ethylene Glycol in the USA? A. Great Question. We use pumped glycol energy recovery systems all the time here in the United States. Up until recently we have almost exclusively used Propylene Glycol. Ethylene … Continue reading
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Ask Rick: Pumped Glycol Systems | Does Air in the Glycol impact performance?
Q. I have some questions about pumped glycol systems. What happens if all the entrapped air is not removed from the glycol? Should a closed loop have auto bleed? A. Air bubbles entrapped in the glycol circuit are very … Continue reading
Ask Rick: Pumped Glycol Energy Recovery | Pressure Drop for Konvekta Coils?
Q. What is a typical pressure drop across the Konvekta coils? A. The air pressure drop across the coils depends on several factors: number of rows, air face velocity, fin spacing and tube alignments. There is a trade-off between thermal … Continue reading
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Pumped Glycol Energy Recovery | Konvekta High Performance Heat Exchanger Coil
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 … Continue reading
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Tagged coil, coils, energy, energy conservation, energy recovery, energy recovery systems, glycol, heat exchanger, heat exchanger coil, heat recovery, heat recovery ventilation, heat transfer, heat transfers, heating, konvekta, pumped glycol systems, ventilating
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Pumped Glycol Energy Recovery | What’s so special about Konvekta?
Two years ago Rick McGinley and I were contacted by Rudolf Zaengerle from Konvekta. Konvekta had done research and had singled out DAC Sales as the firm to represent them in New England. Rick and I were not convinced that … Continue reading
Ask Rick: Pumped Glycol Systems | Where are Konvekta Systems manufactured?
Q. I have read about Konvekta systems. They are a Swiss company. Do they manufacture any parts of their system in the US? A. Most components are made in the USA; in particular, the Hydronic Module and its components (pumps, motors, valves, … Continue reading
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