quite a different story. In this case, providing additional load to that chiller provides a heat source for the energy recovery process. At full load conditions, the increased chiller power requirement to overcome the increased lift will more than offset the savings from the smaller cooling tower fan and condenser pump. Since pumps are direct drive, the pump curves are typically for standard motor speeds (1200, 1800 or 3600 rpm). With larger chillers that offer flexible shell arrangements, single pass shells can be used to lower the pressure drop. Single - loop learning edit Mental models affect the way that people work with information, and also how they determine the final decision. Figure 47 - Primary. A common cooling tower is also possible but not common for parallel chillers. Due to diversity, not all the connected loads will "peak" at the same time as the building peak load.
Single loop and double loop models in research on decision making - Org, learning in organizationsWinter Load Application Another good application for a dual or VFD chiller is winter load applications. The air conditioning system is floor-by-floor VAV with reheat and a single chiller plant as shown in Figure. Therefore, the need to change the status quo, the present status of knowledge, gets overlooked. Using the BAS to operate the equipment makes the operation easily visible to the control system and to the operator. When open cooling towers are used in condenser piping, the loop is an open type. The issue is whether the cooling coils can meet the local loads with the higher chilled water temperature. As the pressure drop through the decoupler increases, it tends to make the primary and secondary pumps behave like they are in series. The leaving air condition.5oF and 100. Since this scenario is likely to occur during intermediate weather, dehumidification may not be an issue.
Single loop and double loop models in research on decision making - Chiller Plant Design
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