Articles and Posts

Your refrigerated vehicle bodybuilder saved R8,000 on insulation. You’ll pay R150,000–R250,000 in excess fuel, compressor failures, and product losses over the vehicle’s life. The thermal calculations are not complex. The industry just prefers you don’t run them.

Your “smart fleet” is just a thermometer with WiFi. Real intelligence requires physics-based predictive analytics, not reactive alarms. R60k/year wasted.

Refrigerated transport specifications obsess over solar radiation from above while completely ignoring the 70°C heat source below. South African trucks operate on pavement surfaces 20-30°C hotter than ambient air, yet floor insulation is consistently half that of roofs. The physics is simple, but the industry won’t calculate the cost.

Automatic defrost control system that activates on fixed time intervals regardless of actual ice accumulation, wasting 60% of defrost energy through inappropriate scheduling.

Automatic defrost control system that activates on fixed time intervals regardless of actual ice accumulation, wasting 60% of defrost energy through inappropriate scheduling.

4-ton refrigerated trucks waste R20,350/year fighting aerodynamic drag. Composite bodies cut fuel costs 39% while solving the flat wall problem nobody addresses.

Everyone assumes larger condensers create more drag. They’re wrong. Behind every courier truck cab sits a 1.4-2.0m² flat loadbox wall creating massive drag (C_d ~1.15). Small condensers cover only 20% of it. Large horizontal condensers covering 70-90% act as integrated fairings, SAVING R2,751-R3,528/year in aerodynamic drag—while providing 50-100% more cooling capacity. The loadbox wall is the problem. Large condensers are the solution. Net benefit: R12,751-R15,528/year (aerodynamics + thermodynamics). Payback: 7-13 months.

Small form factor condensers waste 60% of your mounting space. Ram air can’t save undersized coils at courier speeds. Use the space you paid for.