Determine the weight of the shipment in pounds. Divide the weight by the total cubic feet of the shipment to get the pounds per cubic foot, or density. For multiple pieces, add the total weight of each piece before dividing by the total cubic feet. Once you have the freight density, use...
assess size. make sure an hvac system aligns with the load requirements of your home. have the hvac contractor measure square footage to determine btu and tonnage requirements. you’ll want an appropriately sized unit for the best energy-efficiency and cost. check fuel sources. if your home ...
Example: Carrier A/C Compressor Condenser Model# 38XD12400 (same unit as used for the serial number example above), there is variation in how Carrier assigned these numbers but typically the numbers indicate either tonnage or MBTUH. This example has digits in the 4th and 5th positions (right...
The total demand for freight transport in Europe has increased significantly in recent decades, but most of it has been handled by road transport. To fulfil the modal shift targets set in the EU White Paper 2011, it will be necessary to double rail’s market share from today’s 18 %, by...
When force is applied to the left piston, it will move nine units for every one unit that the right piston moves, and the force is multiplied by nine on the right-hand piston. To determine the multiplication factor, start by looking at the size of the pistons. Assume that the piston ...
Although the majority of vehicles assembled in North America will travel by rail, autos collectively make up a very small percentage of overall rail-cargo transport in America. The Association of American Railroads reports motor vehicles made up just 1.6 percent of all railroad tonnage transported in...
Simply put, it’s the capacity or power of the AC. The bigger the BTU, the more cooling effect an AC unit can provide. Here is an example of how you can calculate how many BTUs you need to cool down a 500 sq. ft. area with 8 feet ceilings, average sun exposure, average climate...