Experimental study of effect of an inner thermal curtain in evaporative cooling system of a cascade greenhouse

Ashish Shukla, G. N. Tiwari, M. S. Sodha

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In this paper experimental study has been carried out in a cascade greenhouse with inner thermal curtain to see the effect of thermal curtain. A thermal model has also been developed to predict the air temperature in a cascade greenhouse. The fan-pad system has been used for evaporative cooling and an inner thermal curtain has been used to divide the greenhouse in two zones. Experiments have been conducted in hot summer conditions at Solar Energy Park, IIT Delhi, New Delhi, India for empty greenhouse. Statistical analysis has been carried out to validate the agreement of experimental observations with predicted values. The values of the root mean square percent deviation and coefficient of correlation has been found out 9.0%, 0.90; 5.0%, 0.95 and 7.0%, 0.97 for April, May and June in case of evaporative cooling without curtain in greenhouse-2. The degree of freedom for the experimental work is 10.0. It is found that the use of evaporative cooling with a thermal curtain reduces the temperature of greenhouse by 5 °C and 8 °C in the second zone of greenhouse-1 and 2 in comparison to greenhouse without curtain in May.

Original languageEnglish
Pages (from-to)61-72
Number of pages12
JournalSolar Energy
Volume82
Issue number1
DOIs
Publication statusPublished - Jan 2008
Externally publishedYes

Fingerprint

Evaporative cooling systems
Greenhouses
Cooling
Hot Temperature
Cascades (fluid mechanics)
Solar energy
Fans
Statistical methods
Temperature

Keywords

  • Cascade greenhouse
  • Evaporative cooling
  • Thermal curtain

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Experimental study of effect of an inner thermal curtain in evaporative cooling system of a cascade greenhouse. / Shukla, Ashish; Tiwari, G. N.; Sodha, M. S.

In: Solar Energy, Vol. 82, No. 1, 01.2008, p. 61-72.

Research output: Contribution to journalArticle

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