Computational program to evaluate thermal comfort in animal production facilities

Carlos Gutemberg de Souza Teles Junior, Richard S. Gates, Ilda de Fátima Ferreira Tinôco, Cecília de Fátima Souza, Monique de Oliveira Vilela

Research output: Contribution to conferencePaperpeer-review


The aim of this study is to document a computational tool for thermal environment evaluation in facilities for production animals, utilizing the Black Globe Temperature and Humidity Index (BGTHI) value, calculated from air temperature and relative humidity. The software, TCAP, (“Thermal Comfort in Animal Production”) was developed using the C# programming language in the (IDE) Microsoft Visual C# 2010 Express®. TCAP takes input data (air temperature and relative humidity) and calculates other moist air psychrometric properties (partial water vapor pressure, pw; saturation water vapor pressure, pws; and dew-point temperature, tdp). The Black globe temperature is estimated, as a function of (Tair), (RH) and the product (Tair x RH), and combined with tdp, to compute BGTHI. Facility thermal conditions were evaluated based on relationships developed between BGTHI and livestock or poultry species housed in the facility. The TCAP graphical user interface is divided into three windows, a program initialization window, a main window where data entry and results are presented, and an information window. Software testing and evaluation involved conducting simulations of different housing and environment scenarios. The simulation results were compared with the literature, in studies that related the thermal environment conditions to the comfort and/or productivity of the animals. This comparison was done to assess whether results obtained through the software were similar to those at the facilities in real conditions. The TCAP software is a practical tool to help producers in decision making, including evaluating the thermal environment in production facilities for different animals’ species. The TCAP software is free and available from

Original languageEnglish (US)
StatePublished - Jan 1 2018
Event10th International Livestock Environment Symposium, ILES 2018 - Omaha, United States
Duration: Sep 25 2018Sep 27 2018


Conference10th International Livestock Environment Symposium, ILES 2018
Country/TerritoryUnited States


  • Animal environment
  • Computational tool
  • Precision livestock farming

ASJC Scopus subject areas

  • Animal Science and Zoology


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