The sewage heat extraction pipe is made of high thermal conductivity material! Efficiently melts snow using only the thermal energy from sewage.
We would like to introduce a case study of the installation of a "pipe-bottom type heat pump snow melting facility" at the Niigata Elementary School intersection. This is a simple snow melting system that circulates antifreeze between the sewer pipe and the roadway snow melting section. However, by using materials with high thermal conductivity for the sewer heat extraction pipes and high thermal conductivity concrete for the snow melting pavement, it is designed to efficiently melt snow using only the thermal energy from the sewer. Additionally, this facility was installed as part of a demonstration project by the National Institute for Land and Infrastructure Management of the Ministry of Land, Infrastructure, Transport and Tourism, and the research results have been published as guidelines. 【Facility Overview】 ■ Construction Year: 2018 ■ Location: Niigata Elementary School Intersection ■ Installer: National Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure, Transport and Tourism (2018 Innovative Sewer System Demonstration Project (B-DASH Project)) ■ Contractor: Kowa Co., Ltd., Sekisui Chemical Co., Ltd., Niigata City Joint Research Group *For more details, please refer to the PDF materials or feel free to contact us.
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【Overview of Other Facilities】 ■ Heat Collection Section - Existing pipe φ1000mm confluence type, high thermal performance heat collection pipe φ17mm × 24 units, single-sided pressing method (counterflow), heat collection extension 91.8m ■ Snow Melting Section - Snow melting area 204m², designed snow melting capacity 1.49cm/h, required heat amount 25.1kW, high thermal conductivity concrete pavement, stainless steel heat dissipation panels ■ Control Section - Snowfall sensor, circulation pump 2.2kW ■ Performance Coefficient - Average COP for the entire period = 13.9 *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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A comfortable and convenient life, along with the blessings of nature. We need both of these. While making our communities safer and more comfortable, we must protect the natural environment. It's a challenging theme, but if we face it seriously, we can surely achieve it. What makes this possible is creativity and technology. Kowa will leverage the technical know-how we have accumulated and continue to strive for a balance between the two.