Cooling system is very energy intensive in data centers, taking up to 40% of the total data center energy consumption. a common approach to improving cooling system energy efficiency is to increase the supply air temperature. meanwhile, keeping server inlet temperature within a safety range (i. e., 65f and 81f) is crucial for maintaining data center uptime. therefore, when allocating workloads to servers and increasing the supply air temperature setpoint, the data center operator must also ensure that all the server inlet temperature is below the safety threshold.

Adamson company manufactures four lines of garden tools. as a result of an activity analysis, the accounting department has identified eight activity cost pools. each of the product lines is produced in large batches, with the whole plant devoted to one product at a time. classify each of the following activities or costs as either unit-level, batch-level, product-level, or facility-level. activities (a) machining parts. (b) product design. (c) plant maintenance. (d) machine setup. (e) assembling parts. (f) purchasing raw materials. (g) property taxes. (h) painting.