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Apparatus and method of monitoring operation of a temperature control apparatus. The apparatus includes a controller, a refrigeration circuit extending between a compressor, a condenser, and an evaporator, and a drive unit operably connected to the compressor. The drive unit has a fuel supply, a plu

Apparatus and method of monitoring operation of a temperature control apparatus. The apparatus includes a controller, a refrigeration circuit extending between a compressor, a condenser, and an evaporator, and a drive unit operably connected to the compressor. The drive unit has a fuel supply, a plurality of cylinders, a fuel line extending between the fuel supply and the plurality of cylinders, and a sensor positioned between the fuel supply and the cylinders to record fuel flow. The method includes directing air across the evaporator, recording a fuel flow rate with the sensor, calculating an actual output power of the drive unit using the fuel flow rate, calculating an expected output power of the drive unit, and comparing the actual output power of the drive unit and the expected output power of the drive unit to predict malfunctions of the apparatus.

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Apparatus and method of monitoring operation of a temperature control apparatus. The apparatus includes a controller, a refrigeration circuit extending between a compressor, a condenser, and an evaporator, and a drive unit operably connected to the compressor. The drive unit has a fuel supply, a plu

Apparatus and method of monitoring operation of a temperature control apparatus. The apparatus includes a controller, a refrigeration circuit extending between a compressor, a condenser, and an evaporator, and a drive unit operably connected to the compressor. The drive unit has a fuel supply, a plurality of cylinders, a fuel line extending between the fuel supply and the plurality of cylinders, and a sensor positioned between the fuel supply and the cylinders to record fuel flow. The method includes directing air across the evaporator, recording a fuel flow rate with the sensor, calculating an actual output power of the drive unit using the fuel flow rate, calculating an expected output power of the drive unit, and comparing the actual output power of the drive unit and the expected output power of the drive unit to predict malfunctions of the apparatus. usion of Self-Reinforced Polyethylene, Advances in Polymer Technology, vol. 11, No. 2, pp. 92 -98. Raj et al., Use of Wood Fiber as Filler in Common Thermoplastics: Studies on Mechanical Properties, Science and Engineering of Composite Materials, vol. 1 No. 3, 1989, pp. 85-98. Raj et al., Use of Wood Fibers in Thermoplastics. VII. The Effect of Coupling Agents in Polyethylene--Wood Fiber Composites, Journal of Applied Polymer Science, vol. 37, pp. 1089-1103 (1989). Resin Stretching: Accent on Performance, Modern Plastic International, Jan. 1974, pp. 58-60. Rogalski et al., Poly(Vinyl-Chloride) Wood Fiber Composites, ANTEC, 1987, pp. 1436-1441. Sonwood Outline, Apr., 1975. Sonwood: a new PVC wood-flour alloy for Extrusions and other Plastic Processing Techniques, Sonesson Plast AB, Malmo, Sweden. Thomas et al., Wood Fibers for Reinforcing Fillers for Polyolefins