Category Archives for Process Cooling in Remote Location
Process Cooling – Glycol Dehidrator Increase Gas Temperature
We invariably cool the compressor discharge prior to dehydration. Unfortunately, natural gas will be reheated—sometimes by 10°F — in a typical gas field dehydration contactor. This occurs because of two factors: • The circulating glycol may be 70° hotter than … Continue reading
Process Cooling – Excessive Gas Inlet Temperature
There are three factors which increase an air cooler’s inlet temperature: • The compressor valves are faulty. • The compression ratio has increased. • High pressure, high temperature natural gas is being produced from the wellhead. heat transfer surface area) … Continue reading
Process Cooling – Gas Side Problems
Whenever finned—tubed cooling bundles are arranged in parallel, as shown in figure 5-2, a potential exists for poor cooling due to gas maldistribution. A low gas outlet temperature from an individual bundle is indicative of lack of gas flow through … Continue reading
Process Cooling – Fan Blade Pitch
Air flow from a fan will vary considerably with the blade pitch. The pitch is adjustable. To save engine horsepower, an operator may set the blade pitch at 15° during the winter. During the summer, he may attempt to maximize … Continue reading
Process Cooling – Fan Tip Speed
Most fans are designed for a maximum fan tip speed of 14,000 feet per minute. To calculate the tip speed of the fan, do not calculate the fan rpm, from the pulley size and driver speed. The belts may be … Continue reading
Process Cooling – Insuffient Air Flow
If the air flow existing from the tube bundle is hotter than the effluent gas, the chances are there is insufficient air flow to properly cool the gas. In particular, if the air temperature blowing out of the effluent end … Continue reading
Process Cooling – Gas Cooling
Underground gas transmission pipelines are externally wrapped in a protective plastic type coating. Gas temperatures in excess of 130°F to 140″F can cause embrittlement and eventual failure of this coating. For this reason, the usual industry practice is to specify … Continue reading