Root zone temperature control with thermal energy storage in phase change materials for soilless greenhouse applications

Beyhan B., Paksoy H., Dasgan Y.

ENERGY CONVERSION AND MANAGEMENT, cilt.74, ss.446-453, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 74
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.enconman.2013.06.047
  • Dergi Adı: ENERGY CONVERSION AND MANAGEMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.446-453
  • Anahtar Kelimeler: Phase change material (PCM), Greenhouse applications, Passive heating, Soilless agriculture, Thermal energy storage (TES), PURE FATTY-ACIDS, TERNARY MIXTURES, BINARY, HEAT
  • Çukurova Üniversitesi Adresli: Evet

Özet

A new root zone temperature control system based on thermal energy storage in phase change materials (PCM) has been developed for soilless agriculture greenhouses. The aim was to obtain optimum growing temperatures around the roots of plants. The candidate PCMs were 40% oleic acid-60% decanoic acid mixture and oleic acid alone. Field experiments with these PCMs were carried out in November 2009 with Cucurbite Pepo and March 2010 with Capsicum annum plants. No additional heating system was used in the greenhouse during these periods. In the November 2009 tests with zucchini, 40% oleic acid + 60% capric acid mixture was the PCM and a temperature increase in the PCM container (versus the control container) was measured as 1.9 degrees C. In our March 2010 tests with peppers, both PCMs were tried and the PCM mixture was found to be more effective than using oleic acidalone. A maximum temperature difference achieved by the PCM mixture around the roots of peppers was 2.4 degrees C higher than that near the control plants. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.