Ventilation Fan and Inlet Performance in Realistic Swine Facilities

Posted in: Energy by admin on January 1, 1992 | No Comments

The air delivery performance and energy efficiency of a number of commercially available ventilation fans have been measured with a fan test chamber. The air distribution and air velocity profile of the most common swine facility ventilation inlet (continuous slot with adjustable baffle) has also been measured. This information will enable swine producers and building designers to select ventilation systems based on documented performance under realistic operating conditions. Since the availability of this information will allow customers to make informed decisions when purchasing ventilation equipment, it will also encourage the ventilation equipment industry to develop design improvements in order to stay competitive.

Del-Air Northwinds Model 10K Ventilation Fan

Posted in: Energy by admin on January 1, 1991 | No Comments

This article evaluates the Del-Air Northwinds Model 10K ventilation fan for performance, ease of operation and safety.

Summary of the Del-air Panel Fans

Posted in: Energy by admin on | No Comments

This report evaluates Del-Air Panel Fans for performance in terms of flow rate, static pressure, input power and total efficiency. The control unit was not evaluated and was used only to set fan speed. Fans were also evaluated for ease of operation, maintenance, operator safety and suitability of the operator’s manual.

Heat Recovery Ventilators

Posted in: Energy by admin on January 1, 1990 | No Comments

The evaluations were conducted by a joint two year study with Pami and the Manitoba Department of Agriculture under sponsorship from Energy Mines and Resources Canada, ENERDEMO program, and the Manitoba Department of Energy and Mines. The main purposes of the project were to demonstrate heat recovery as an energy conservation measure, and to evaluate the performance of commercially available HRV’s. Each HRV was installed and monitored in a livestock barn. Laboratory tests were also run. Each unit was evaluated and problems recorded.

Energy Use in the Production and Housing of Poultry and Swine – An Overview

Posted in: Energy by admin on January 1, 1989 | No Comments

Cost Effectiveness of Environmental Control for Swine

Posted in: Energy by admin on January 1, 1988 | No Comments

South Carolina is in the temperate zone and due to its geographic location experiences wide fluctuations in temperatures. The moderate climate in South Carolina has resulted in the construction of a variety of production facilities. Swine production units range from open feedlots to totally enclosed structures with environmental control. Evaporative cooling, refrigeration, forced ventilation and shade are all used to reduce livestock stress. The newer facilities and the renovated facilities offer better control of temperatures, moisture and toxic gases, but at the expense of increased capital and operating cost. The objective of this study was to determine if the increased cost associated with the renovation and installation of environmental control equipment was justified based on increased pig productivity.

Calculating Profit Maximizing Swine Housing Temperatures

Posted in: Energy by admin on | No Comments

Minimization of production costs requires the integration of several factors. These include nutrition, housing configuration, and growing environment. The temperature at which optimum feed utilization occurs may not be the economically optimum temperature. The economically optimum temperature of a confinement building is determined by calculating profit potentials at various temperatures.

Comparison of Fan-Heater Sequencer to Staged Thermostat Controls

Posted in: Energy by admin on | No Comments

When a staged system of single-speed fans is used to ventilate a livestock barn, the control system must automatically cycle fans on and off to achieve temperature control within the barn. In the past, conventional electro-mechanical thermostats have been used. When several stages of ventilation are needed, and when heaters also must be controlled, the operator needs to set several thermostats within an individual room. Integrated fan-heater sequencers offer the potential to replace staged thermostat systems with a single controller whose operation is adjusted by a single setpoint. The higher cost of the sequencers must be offset by user convenience. Integrated fan-heater sequencers should only be installed if quick on-farm repair service can be guaranteed.

Climate Control Systems and Equipment – Heating, Energy Conservation and System Failure

Posted in: Energy by admin on January 1, 1987 | No Comments

Selecting Fans for Livestock Buildings

Posted in: Energy by admin on | No Comments

In Canada the range of weather conditions is wide, from summer heat to winter cold, that the ventilation rate in livestock and poultry buildings can vary by a factor of at least 16 times. This plan explains alternative ways of obtaining this wide range in fan-ventilated buildings. The principle of stepped ventilation using several different-sized fans is explained and compared with control schemes using two-speed, multispeed or variable-speed fans. This plan also discusses other important considerations in choosing fans and controls for ventilating modern livestock and poultry buildings.