Energy-Efficient Hot Water for Farms


Photo: eXtension Ag Energy.

Agricultural producers use heated water for a variety of jobs, including general cleaning of structures, equipment, livestock, poultry, fruit, and vegetables and to sterilize equipment. Dairy farms use especially large quantities of hot water daily for both cleaning structures and equipment and for processing milk products.

Although electrical water heating is not uncommon, most agricultural producers use propane (LP) or natural gas because of their higher efficiency. In addition to gas and electric water heaters, agricultural …

Energy-Efficient Refrigeration for Farms

Agricultural producers use a variety of refrigeration systems to extend the shelf life of perishable materials. Cooling not only reduces the potential for spoiling due to bacterial growth but also reduces humidity levels for some products. Refrigeration may also be used during sorting, processing, packaging, and storage.

Fruit and vegetable farmers must cool many of their products quickly after harvest; removal of field heat is important to maintaining produce quality and shelf life.

This large refrigerated room is used to

Energy Efficiency of Electric Motors on the Farm

The efficiency of a motor depends on how well it converts electrical power into work. Efficient electric motors have good starting and running performance, and provide a high level of reliability. An electric motor’s efficiency is numerically calculated as the ratio of the output power of the motor shaft over the electrical power required to turn the motor shaft and can be calculated using power values measured in wattage or horsepower.

Optimizing Electric Motor Efficiency

An electric motor’s rated efficiency …