Abstract: A heat exchange unit for a heat exchanger system includes a heat exchange tube. The heat exchange tube including a heat exchange tube inlet and one or more heat exchange fins coupled along the heat exchange tube. The heat exchange tube extends from the heat exchange tube inlet to a refrigerant return. A heat exchange jacket is interposed between the heat exchange tube and a unit housing. The heat exchange jacket includes a jacket passage in communication with the refrigerant return. A first product passage extends from the product inlet to a product return. The heat exchange fins turbulate agricultural product in the first product passage while heat is transferred from the agricultural product to refrigerant in one or more of the heat exchange tube or the heat exchange jacket. Heat is transferred from the agricultural product to the refrigerant through the heat exchange jacket in the second product passage.

Abstract: This document discusses, among other things, apparatus and methods for a multi-section applicator having variable-rate sections. In an example, an apparatus can include at least one distribution manifold, a user interface, and an applicator controller. The at least one distribution manifold distributes a substance and can include an inlet port configured to receive the substance, a plurality of outlet ports, one or more sensors located at an outlet port, a controllable valve that supplies the substance to the inlet port. The applicator controller measures a value of the distribution parameter using the sensor signal produced by the at least one sensor of an outlet port, detects when the measured value differs from a specified target value by more than a specified error threshold value, and presents an indication, using the user interface, that the measured value differs from the target value according to the detection.

Abstract: A heat exchange unit for a heat exchanger system includes a heat exchange tube. The heat exchange tube including a heat exchange tube inlet and one or more heat exchange fins coupled along the heat exchange tube. The heat exchange tube extends from the heat exchange tube inlet to a refrigerant return. A heat exchange jacket is interposed between the heat exchange tube and a unit housing. The heat exchange jacket includes a jacket passage in communication with the refrigerant return. A first product passage extends from the product inlet to a product return. The heat exchange fins turbulate agricultural product in the first product passage while heat is transferred from the agricultural product to refrigerant in one or more of the heat exchange tube or the heat exchange jacket. Heat is transferred from the agricultural product to the refrigerant through the heat exchange jacket in the second product passage.