Preheating Outside Air with Steam Coils

摘要

Use these 10 design and installation tips to ensure long industrial steam coil life and performance. Steam coils can be challenging in terms of proper design and application, especially when heating outside air below 32℉ (0℃). Corrosion issues in steam coils can involve both chemical and mechanical factors. For instance, during cold winter months, the possibility exists for preheat steam coils that are exposed to outside air to freeze and burst or experience severe thermal shock, leading to failure. Figure 1 shows an example of typical failure on a steam coil resulting from the coil freezing.