scholarly journals DETERMINAÇÃO DO ITU – ÍNDICE DE TEMPERATURA E UMIDADE DA REGIÃO DE ARAGUAÍNA-TO PARA AVALIAÇÃO DO CONFORTO TÉRMICO DE BOVINOS LEITEIROS / DETERMINATION OF ITU - TEMPERATURE AND HUMIDITY INDEX OF THE REGION OF ARAGUAÍNA-TO FOR THE EVALUATION OF THE THERMAL COMFORT OF MILK CATTLE

2020 ◽  
Vol 6 (9) ◽  
pp. 69254-69258
Author(s):  
Clauber Rosanova ◽  
Geovanne Ferreira Rebouças ◽  
Mírian das Mercês Pereira da Silva ◽  
Douglas Messias Lamounier Camargos Rezende ◽  
Alysson Soares da Rocha ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Temperature And Humidity ◽  
Humidity Index

scholarly journals CONFORTO TÉRMICO E DESEMPENHO DE POEDEIRAS NA FASE INICIAL

2020 ◽  
Vol 35 (3) ◽  
pp. 388-394
Author(s):  
Fabiana Terezinha Leal de Morais ◽  
José Pinheiro Lopes Neto ◽  
Adriana Maria dos Santos ◽  
Patrício Gomes Leite ◽  
Raissa Gonçalves Cavalcanti
Keyword(s):  
Weight Gain ◽  
Thermal Comfort ◽  
Initial Phase ◽  
Thermal Conditions ◽  
The Third ◽  
Humidity Index ◽  
Globe Temperature ◽  
Black Globe Temperature ◽  
Poultry Farming

CONFORTO TÉRMICO E DESEMPENHO DE POEDEIRAS NA FASE INICIAL   FABIANA TEREZINHA LEAL DE MORAIS1, JOSÉ PINHEIRO LOPES NETO2, ADRIANA MARIA DOS SANTOS3, PATRÍCIO GOMES LEITE4, RAISSA GONÇALVES CAVALCANTI5   1Doutoranda em Engenharia Agrícola: Lacra, UFCG, Avenida Assis Chateaubriand, 101, Liberdade,58414-060, Campina Grande, Paraíba, Brasil. [email protected]. 2 Doutor em Engenharia Agrícola: Lacra, UFCG, R. Aprígio Veloso, 882 - Universitário, 58428-830, Campina Grande, Paraíba, [email protected]. 3 Mestra em Engenharia Agrícola: Lacra, UFCG, R. Alencar Pires de almeida, 07 – Centro, 58748-000, Água Branca, Paraíba, [email protected]. 4 Doutor em Engenharia Agrícola: Lacra, UFCG, R. Aprígio Veloso, 882 - Universitário, 58428-830, Campina Grande, Paraíba, [email protected] 5 Mestra em Engenharia Agrícola: Lacra, UFCG, R. Aprígio Veloso, 882 - Universitário, 58428-830, Campina Grande, Paraíba, [email protected].   RESUMO: Tendo em vista a importância do conforto térmico na avicultura de postura no Brasil, o objetivo geral destapesquisa foi avaliar o conforto térmico no galpão (pinteiro), localizado em uma granja comercial no município de Cuité (PB). A avaliação foi realizada com base nos dados de Índice da Temperatura do Globo Negro e Umidade (ITGU), avaliando o desempenho das pintainhas relacionado ao ganho de peso e as coletas de dados foram realizadas diariamente.Foi utilizado um galpão destinado para a fase de cria para aves da linhagem Lohmann LSL no período da terceira semana para desenvolvimento das aves, avaliando os valores de ITGU e comparando àqueles indicados pela literatura. Como resultados, observamos que foi possível manter as faixas de conforto térmicas bem próximas ao recomendado, e o ganho de peso mantiveram-se abaixo do indicado pelo manual da linhagem, os animais submetidos a condições térmicas adversas apresentaram menor ganho de peso.   Palavras-chave: ambiência, conforto térmico, ganho de peso.   THERMAL COMFORT AND POISER PERFORMANCE IN THE INITIAL PHASE (CRIA)   ABSTRACT: Considering the importance of thermal comfort in poultry farming in Brazil. The aim of this research was to evaluate the thermal comfort in the shed (pestle), located in a commercial farm in the municipality of Cuité - PB. The evaluation was performed based on the data of air temperature (ºC), relative humidity of the air (%), the black globe temperature for determination of the Black Globe Temperature and Humidity Index (ITGU). Weight gain on chicks and data collection were performed daily. The shed for the breeding phase of the Lohmann LSL line was used in the third week for bird development, evaluating the ITGU values and comparing to those indicated in the literature, we observed that it was possible to keep the thermal comfort bands very close to the recommended one, and the weight gain remained distant to that indicated by the lineage manual, the animals submitted to adverse thermal conditions showed less weight gain.   Keywords: ambience, thermal comfort, weight gain.

scholarly journals Supervisory System For Monitoring, Control And Estimating Thermal Comfort For Broiler and Laying Hens Production Sheds

2020 ◽  
Vol 8 (3) ◽  
pp. 316-331
Author(s):  
Mario Mollo Neto ◽  
Mariana Matulovic ◽  
Paulo Sérgio Barbosa dos Santos
Keyword(s):  
Thermal Comfort ◽  
Real Time ◽  
Laying Hens ◽  
Production Environment ◽  
Supervisory System ◽  
Temperature And Humidity ◽  
Humidity Index ◽  
Automatic Activation ◽  
And Control ◽  
Productivity And Competitiveness

This research aims to promote the project for the construction of software, firmware, and micro-controlled hardware, which together allow the automatic control of the temperature and humidity index (THI) in real-time the intensive production environment in poultry and laying hens production houses, thus avoiding productive losses due to the stress to which the birds are subjected. This system aims, from the information from a set of sensors, connected to a microcontroller acquisition and control board, to infer the temperature and humidity index from the measured climatic variables, to enable the corresponding activation of electronic interfaces with electric actuators, for the automatic activation of ventilation devices, humidification and curtain actuation and the lighting of production houses, keeping the environmental conditions of the house within a convenient range of temperature and relative humidity to ensure thermal comfort and thus avoiding bird stress. Thus, helping to mitigate production losses and facilitating managers real-time monitoring of the shed to achieve greater productivity and competitiveness.

scholarly journals Smart Wifi Thermostat-Enabled Thermal Comfort Control in Residences

2020 ◽  
Vol 12 (5) ◽  
pp. 1919 ◽  
Author(s):  
Robert Lou ◽  
Kevin P. Hallinan ◽  
Kefan Huang ◽  
Timothy Reissman
Keyword(s):  
Thermal Comfort ◽  
Energy Savings ◽  
Consumption Data ◽  
Building Geometry ◽  
Temperature And Humidity ◽  
The Mean ◽  
Low Efficiency ◽  
Radiant Temperature ◽  
Nonlinear Autoregressive

The present research leverages prior works to automatically estimate wall and ceiling R-values using a combination of a smart WiFi thermostat, building geometry, and historical energy consumption data to improve the calculation of the mean radiant temperature (MRT), which is integral to the determination of thermal comfort in buildings. To assess the potential of this approach for realizing energy savings in any residence, machine learning predictive models of indoor temperature and humidity, based upon a nonlinear autoregressive exogenous model (NARX), were developed. The developed models were used to calculate the temperature and humidity set-points needed to achieve minimum thermal comfort at all times. The initial results showed cooling energy savings in excess of 83% and 95%, respectively, for high- and low-efficiency residences. The significance of this research is that thermal comfort control can be employed to realize significant heating, ventilation, and air conditioning (HVAC) savings using readily available data and systems.

scholarly journals Environment in poultry production covered with thermal and aluminum roofing tiles

2015 ◽  
Vol 35 (2) ◽  
pp. 206-214
Author(s):  
FERNANDO G. DE OLIVEIRA ◽  
WANESSA M. GODOI ◽  
ROBERTA PASSINI
Keyword(s):  
Thermal Comfort ◽  
Thermal Environment ◽  
Radiant Heat ◽  
Poultry Production ◽  
Thermal Indices ◽  
Significance Level ◽  
Temperature And Humidity ◽  
Humidity Index ◽  
The Difference ◽  
Globe Temperature

Brazil is a country of tropical climate, a fact that hinders the poultry production in the aspect of thermal comfort. Thus, we aimed to evaluate the thermal environment in commercial poultry houses with different covers during the months of December 2012 to May 2013, in the municipality of Rio Verde, Goiás. The experimental design was completely randomized in split plots with factorial arrangement of treatments 2x3, being two shed models (thermal and aluminum roof tiles) and three sections within each shed (initial, central and final) for 182 days, having the days as replicates. The thermal environment was assessed through thermal comfort indices: Temperature and Humidity Index, Black Globe Temperature and Humidity Index, Radiant Heat Load and Enthalpy. The data was analyzed by SISVAR 5.1., through the analysis of variance, the Scott Knott test used to compare the means, considering a significance level of 1%. The results showed a significant statistical difference between the sheds and the points assessed (P < 0.05). The thermal shed had the lowest values for the environmental variables (Dbt and Bgt) and thermal indices studied, but larger values for the RH compared to the shed with aluminum covering. The use of thermal covers minimizes the difference in temperature range throughout various times of the day, being at 14:00 o'clock the prominence time to others.

scholarly journals Thermal Dynamic Behavior in Bi-Zone Habitable Cell with and without Phase Change Materials

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 41
Author(s):  
Hanae El Fakiri ◽  
Lahoucine Ouhsaine ◽  
Abdelmajid El Bouardi
Keyword(s):  
Thermal Behavior ◽  
Thermal Comfort ◽  
Phase Change ◽  
Dynamic Behavior ◽  
Phase Change Materials ◽  
Energy Performance ◽  
High Energy ◽  
Water Heater ◽  
Simplified Modeling

The thermal dynamic behavior of buildings represents an important aspect of the energy efficiency and thermal comfort of the indoor environment. For this, phase change material (PCM) wallboards integrated into building envelopes play an important role in stabilizing the temperature of the human comfort condition. This article provides an assessment of the thermal behavior of a “bi-zone” building cell, which was built based on high-energy performance (HEP) standards and heated by a solar water heater system through a hydronic circuit. The current study is based on studying the dynamic thermal behavior, with and without implantation of PCMs on envelope structure, using a simplified modeling approach. The evolution of the average air temperature was first evaluated as a major indicator of thermal comfort. Then, an evaluation of the thermal behavior’s dynamic profile was carried out in this study, which allowed for the determination of the PCM rate anticipation in the thermal comfort of the building cell.

scholarly journals Kajian Hutan Kota Malabar terhadap Kenyamanan Termal

2020 ◽  
Vol 3 (1) ◽  
pp. 21
Author(s):  
Eduardo Hilario Bado Towary ◽  
Roedy Sulistyono ◽  
Sama’ Iradat Tito ◽  
Muh. Agus Ferdian
Keyword(s):  
Thermal Comfort ◽  
Thermal Condition ◽  
Open Space ◽  
Green Space ◽  
Tree Level ◽  
Vegetation Types ◽  
Vegetation Analysis ◽  
Humidity Index ◽  
Important Value Index ◽  
The City

<pre>Comfort is something that humans need without exception when in a Green Open Space (RTH). Thermal comfort is a thermal condition felt by humans that is influenced by the environment. The existence of green space such as the City Forest of Malabar needs to be measured about it which can define its feasibility. (1) To examine the effect of thermal comfort in the Malabar forest on the community. (2) Analyzing vegetation in the Malabar city forest related to comfort. The results obtained in this study are the Temperature humidity index (THI) of respondents in the Malabar city forest known to average values of 22.42. It can be categorized that the Malabar city forest has a comfortable condition because in the index range 21 to 24. The analysis of the vegetation analysis in the Malabar city forest is concluded for the predominant vegetation sapling level, ie the pole glodokan plant with an important value index of 6.69. Whereas the pole level that dominates is mahogany with an important value index of 6.66. As for the tree level, the dominant vegetation types are plants with an important value index of 127.91</pre>

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