Pumice Insulation: A Practical Solution for Rural Geothermal Pipelines
- Key words
- Direct Use; Iceland; Reykjavik; Plastic Pipe; Cross Linked Polyethylene; Insulation; Foamed Plastic; Rockwool; Pumice; K Factor; Ground Moisture; Mount Hekla
- Location
- Iceland
- Conference
- Geothermal Resources Council Transactions
- Year
- 1983
- Session
- Direct use; Pipelines; Pumice
- Language
- English
Abstract
Geothermal pipelines from heat resistant plastic, insulated with pumice fill, are gaining acceptance in Iceland in rural heating systems. Initial saving with this technique are a least 50% compared with conventional steel piping, but heat losses are relatively high. Ground moisture is a problem, and K value fluctuates with rainfall levels. Tests conducted by the National Energy Authority demonstrated that this application is practical for rural pipelines, where nearby geothermal sources exist.
Copyright 1983, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.