direct contact. they are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment. the classic example of a heat exchanger is found in an internal combustion engine in which...
heart healthy' food. besides being packed with protein, most nuts contain at least some of these heart-healthy substances: unsaturated fats; omega- fatty acids; fiber; vitamin e;plant sterols and l-arginine. we offer almonds (whole, blanched, slivered), pecan (fancy jr. mammoth halves); pistachios (in-shell...