Life below the wet bulb: The Maisotsenko cycle. Today’s combined-cycle power plants are attaining efficiencies near 50%. But a new technology promises levels . This paper investigates a mathematical simulation of the heat and mass transfer in the two different. Maisotsenko Cycle (M-Cycle) heat and mass exchangers. Request PDF on ResearchGate | On Dec 1, , Muhammad H Mahmood and others published Overview of the Maisotsenko cycle – A way.
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However, this method leads to a significant increase of specific water consumption. The operation of the standard configuration of M-cycle is studied thereafter and useful conclusions are carried out, about the efficiency and the energy consumption electricity and water.
Its efficiency is significantly affected by flow rates and ambient conditions and is expressed in wet-bulb terms, in order to indicate the better performance of a Mwisotsenko cooler instead of a typical EC.
Maisotsenko cycle: technology overview and energy-saving potential in cooling systems
Figure 6 Experimental rig. Received 25 October At humid climates, the cycle could not be recommended, as both product air temperature and hourly consumption are rather high. The fan draws in warm and dry ambient air through the wet blocks, cooling it.
The present paper deals with an overview of Maisotsenko cycle M-cycle.
Ignoring the rates of return, it is clear that at about 6, hours of operation Figure 7the increased cost of installation of an EC balances the increased cost of operation of an conventional cooler.
As the working stream passes through the wet channels, the water is evaporated and the required latent heat is absorbed by the dry channel, which becomes cooler and cooler Figure 3.
For permission for commercial use of this work, please see paragraphs 4. So, if we aim to minimize water consumption, the lowering of the working stream mass flow is the best solution the cooler consumes less than 1.
An experimental study of novel dew-point evaporative cooling system. Figure 4 Heat and mass exchanger layer configuration.
[Full text] Maisotsenko cycle: technology overview and energy-saving potential in | EECT
The achievement maiaotsenko this geometry is the high efficiency of the cycle, as it produces cold air of temperature lower than the wet-bulb ambient air temperature. Maisofsenko experimental testing of a novel dew point evaporative cooler. In this chapter, a commercial cooler based on M-cycle is compared to a conventional one of the same cooling capacity:. It was also important to understand the energy-saving potential of an EC, based on M-cycle.
An easily configurable way to increase the efficiency of the cooler is to reduce the product to working mass flow ratio. The heat and mass exchanger is analyzed and described in detail, so the specifications of M-cycle will be clear and understandable. By accessing the work you hereby maisotsfnko the Terms. Whereas conventional systems use chlorofluorocarbon based refrigerants CFCsevaporative coolers ECs use water.
We also retain data in relation to our visitors and registered users for internal purposes and for sharing information with our business partners. Home Journals Why publish with us? On the contrary, it is shown how disastrous a reduction maisotsneko the working stream flow can maisotswnko because the poor evaporation makes the cooler inefficient for significant temperature drops.
It is clear that, because the two currents do not interact, any water addition will not affect the product stream and its contribution to the increase of the latent heat, which causes evaporation, is linked to the temperature difference of the two streams.
On the other hand, indirect ECs IECs are based on two different streams working [wor] and product [pro]in order to get a relatively drier product stream, but its temperature is not as low as it would be by a DEC.
Two cases of limited mass flow were examined. As a conclusion, M-cycle can satisfy the cooling demand of most Greek cities and it is also expected to do at other Mediterranean regions of similar ambient conditionswithout consuming high amounts of electricity and water.
The efficiency of the cooler is directly affected, as the higher the temperature, the more effective the cooler. M-cycle, evaporative cooling, high efficiency, renewable energy, energy saving, low CO 2 emission Introduction Although conventional air-conditioning systems are widely accepted to be of high energy consumption, they cover a significant part of needs for air-conditioning.
The study is to be a useful tool to anyone interested in energy saving in buildings and in industrial plants, as the operating cost, which is strongly affected by the cooling demand, is significantly reduced by the application of M-cycle. ECs are based on water evaporation and latent heat utilization. Even then, in this case, the efficiency is comparable to that of DECs, even without producing humid air like these and almost double the efficiency of typical indirect evaporative masiotsenko.
A typical direct EC DEC consists of a box with voluminous humidification blocks, a water pump, and maisotenko water distribution system. Int J Energy Clean Environ.
The replacement of conventional cooling systems by ones based on M-cycle leads to a significant environmental benefit, as:. In reality, one layer of heat and mass exchanger HMX is show on Figure 4. When water evaporates and becomes vapor, the heat is removed from the air, resulting in a cooler air temperature. There is no doubt about the effect of the reduction of the product stream flow maisotsenlo the improvement of the cooler efficiency.
This cycle is an indirect evaporative cooling—based cycle, which utilizes a smart geometrical configuration for the air distribution. Abstract Fulltext Metrics Get Permission.