Accelerated plant growth results from an intensive shallow bottom heat system using waste geothermal hot water and steam condensate in Iceland

Robert Dell, Runar Unnthorsson, C. S. Wei, William Foley

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The authors have developed an enhanced intensive shallow bottom heat agricultural system using waste geothermal hot water and steam condensate that is analogous to a heated sidewalk at the Agricultural University of Iceland, the Keilir Institute of technology and HNLFI clinic in Iceland. The gardens are heated throughout the year. The results confirm the survival of out of zone plants, including tomatoes and zucchinis that produced a harvestable crop. Plant growth was often increased by 20% or more while the growing season was extended by about 4 to 6 weeks that may increase the value of the crop. Green grass has been documented during the winter. The authors have developed an analogous system in New York City using waste CHP heat in a similar cascade utilization that has demonstrated comparable results.

Original languageEnglish
Title of host publicationGeothermal Resources Council Annual Meeting, GRC 2015 - Geothermal
Subtitle of host publicationAlways On
PublisherGeothermal Resources Council
Pages101-108
Number of pages8
ISBN (Electronic)9781510817241
Publication statusPublished - 2015
Event39th Geothermal Resources Council Annual Meeting - Geothermal: Always On, GRC 2015 - Reno, United States
Duration: 20 Sept 201523 Sept 2015

Publication series

NameTransactions - Geothermal Resources Council
Volume39
ISSN (Print)0193-5933

Conference

Conference39th Geothermal Resources Council Annual Meeting - Geothermal: Always On, GRC 2015
Country/TerritoryUnited States
CityReno
Period20/09/1523/09/15

Other keywords

  • Cascade utilization
  • Enhanced growing season
  • Geothermal agriculture
  • Global warming
  • Heated ground agriculture
  • Heated soil
  • Waste heat

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