二四六天空彩选好资料

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Importance of Reasonable Selection of Heat Exchanger Temperature Difference and Activity Resistance

Source: http://le-signal.com/ Time: 2019-07-17

The importance of reasonable selection of the main heat exchanger temperature difference and active resistance. The temperature difference is reduced by 0.5 K (that is, reduced by about 16%). The amount of capital money added by Jiangsu plate heat exchangers and the cost savings of one and a half years of operation are approximately appropriate, while the temperature difference is expanded by 0.5 K (that is, expanded by 16%). About one year, the increase of one year's operating costs has exceeded the amount that the cost of heat exchange equipment has been reduced due to the expansion of the temperature difference.

Together, because the effect of forward flow air resistance on the energy consumption of air compressors is not as large as that of return flow fluid resistance, the activity resistance of Jiangsu plate heat exchangers, especially the return flow fluid resistance, is reduced, even if it occurs once. The capital cost is increased, but the capital can be recovered within 2 to 3 years; or even if the one-time capital cost is saved, the annual capital cost is improved, such as when the resistance of the return flow fluid of the heat exchanger is 18 kPa. The capital expenditure is not enough to cover the operating expenses added in the first half of the year. Therefore, it is not only necessary to reduce the active resistance of the Jiangsu plate heat exchanger from the structural design, but also to contact the process parameters to conduct an inductive evaluation of energy consumption and investment to determine a better plan.

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