Modeling the operation of recuperative ventilation system of cowshed with air-fountain adsorption devices

Abstract

Analysis of promising directions for the development of technical means for providing a microclimate at livestock farms shows that the most promising are aerial adsorption and catalytic apparatuses. To assess the effectiveness of the application of the developed technological solutions, the modeling of the operation of the recuperative ventilation system of the barn with air-flow adsorption devices was carried out. The results obtained show that the required microclimate in the barn is provided. The required number of heat transfer units for the air fountain heater and heat exchanger, as well as the rational value of the specific capacity of the gasholder, have been determined.

Humidification–Cooling System in Semi-Insulated Box-Type Cowsheds Prevent the Loss of Milk Productivity Due to Thermal Stress

“…Dry matter intake was higher in the experimental group. A sensor-based cooling regime can be an effective means of detecting and reducing heat stress in high-productivity dairy cows during transition seasons where dry and semi-dry areas may have high heat loads [26]. In the study of the influence of heat stress period and fan cooling on the physiology, milk production, and morbidity of milking cows (at different stages of lactation), the average temperature in the cowshed under heat voltage was almost 30 • C with a relative cooling system, a relative humidity of 82%, a wind speed of 1, 35 m s −1 , and the temperature-humidity index (THI) did not exceed the range of moderate heat stress.…”