ARID raceway temperature management

George Khawam, Peter M Waller, Said Attalah, Randy D Ryan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

One of the biggest causes of decreased algae production in open ponds is diurnal and seasonal temperature variation. The ARID (Algae Raceway Integrated Design) system maintains temperature in the optimal range by controlling the surface area of the system. A finite difference temperature model of the ARID raceway was developed in Visual Basic for Applications. The atmospheric boundary layer model uses hourly meteorological data from agricultural weather station networks. The latent heat of vaporization is calculated with the weather station reported values of evapotranspiration, which are calculated with the ASCE standardized Penman equation. The energy balance includes four terms: solar radiation, sensible heat flux, latent heat of vaporization, and long wave radiation. This research focused on calibrating the model for a one month experiment that was run during winter 2011. The results show a very good match between the simulated and the experimental temperature. The model was run in order to simulate the temperature and algae growth in ARID and conventional raceways in Tucson and Yuma, Arizona during the 12 months of 2011.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
PublisherAmerican Society of Agricultural and Biological Engineers
Pages997-1011
Number of pages15
Volume2
ISBN (Print)9781622762088
StatePublished - 2012
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012 - Dallas, TX, United States
Duration: Jul 29 2012Aug 1 2012

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012
CountryUnited States
CityDallas, TX
Period7/29/128/1/12

Fingerprint

algae
raceways
Algae
weather stations
Latent heat
volatilization
temperature
Vaporization
heat
Temperature
Atmospheric boundary layer
Evapotranspiration
Ponds
Energy balance
Solar radiation
meteorological data
energy balance
evapotranspiration
Heat flux
surface area

Keywords

  • Algae culture
  • ARID raceway
  • Conventional raceway
  • Open pond
  • Reflectance
  • Temperature model

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Bioengineering

Cite this

Khawam, G., Waller, P. M., Attalah, S., & Ryan, R. D. (2012). ARID raceway temperature management. In American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012 (Vol. 2, pp. 997-1011). American Society of Agricultural and Biological Engineers.

ARID raceway temperature management. / Khawam, George; Waller, Peter M; Attalah, Said; Ryan, Randy D.

American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. Vol. 2 American Society of Agricultural and Biological Engineers, 2012. p. 997-1011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Khawam, G, Waller, PM, Attalah, S & Ryan, RD 2012, ARID raceway temperature management. in American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. vol. 2, American Society of Agricultural and Biological Engineers, pp. 997-1011, American Society of Agricultural and Biological Engineers Annual International Meeting 2012, Dallas, TX, United States, 7/29/12.
Khawam G, Waller PM, Attalah S, Ryan RD. ARID raceway temperature management. In American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. Vol. 2. American Society of Agricultural and Biological Engineers. 2012. p. 997-1011
Khawam, George ; Waller, Peter M ; Attalah, Said ; Ryan, Randy D. / ARID raceway temperature management. American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012. Vol. 2 American Society of Agricultural and Biological Engineers, 2012. pp. 997-1011
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