September 5, 2019 posted by

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.

Author: Dim Barn
Country: Luxembourg
Language: English (Spanish)
Genre: Finance
Published (Last): 15 September 2005
Pages: 201
PDF File Size: 1.2 Mb
ePub File Size: 7.82 Mb
ISBN: 669-4-54733-695-8
Downloads: 47890
Price: Free* [*Free Regsitration Required]
Uploader: Mikall

As the electricity cost is about 0.

Evaporation technology is simple and functional and has both residential and industrial applications, achieving significant efficiencies in suitable climates hot and dry. ECs are based on water evaporation and latent heat utilization. Accept In order to provide our website visitors and registered users with a service tailored to their individual preferences we use cookies to analyse visitor traffic cyxle personalise content.

Indirect evaporative cooling of air to a sub wet-bulb temperature. Gillan L, Maisotsenko V. The heat and mass exchanger is analyzed and described in detail, so the specifications of M-cycle will be clear and understandable.

The fan draws in warm and dry ambient air through the wet blocks, cooling it. Some auxiliary devices fans and pump are needed to drive the air and the water into the cooler. Whereas conventional systems use chlorofluorocarbon based refrigerants CFCsevaporative coolers ECs use water. For permission for commercial use of this work, please see paragraphs 4.

For this reason, the specific water consumption was defined, which is equal to the amount of water the evaporation of which can produce 1 kWh c. No heat is added or taken out of the air; thus, it is an adiabatic process of constant enthalpy. A heat exchange layer is used between the working airstream and the supply airstream, because the ambient wet-bulb wb temperature is theoretically the minimum achievable temperature of a conventional evaporative system.

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. Home Journals Why publish with us? The full terms of this license are available at https: If you agree to our use of cookies and the contents of our Privacy Policy please click ‘accept’.


You can learn about what data of yours we retain, how it is processed, who it is shared with and your right to have your data deleted by reading our Privacy Policy.

There was a problem providing the content you requested

Javascript is currently disabled in your browser. Thus, the payback period of an EC, compared to a conventional one, is about 2. At humid climates, the cycle could not be recommended, as both product air temperature and hourly consumption are rather high. 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.

Evaporation cools the air while increasing its moisture content or relative humidity. This cycle is an indirect evaporative cooling—based cycle, which utilizes a smart geometrical configuration for the air distribution. Comparative study of the performance of the M-cycle counter-flow and cross-flow heat exchangers for indirect evaporative cooling. Substantial energy, no chlorofluorocarbon usage, reduced peak demand, reduced CO 2 and power plant emissions, improved indoor air quality, lifecycle, cost effectiveness, easily integrated into built-up systems, and easy to use with direct digital control are the main advantages of ECs.

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.

Evaporative air-conditioning is a really promising technology. The achievement of this geometry is the high efficiency of the cycle, as it produces cold air of temperature lower than the wet-bulb ambient air temperature.

Maisotsenko open cycle used for gas turbine power generation.

It was also important to understand the energy-saving potential of an EC, based on M-cycle. Evaporation in an IEC is caused 1 by the sensible heat of the working stream and 2 by the sensible heat of the product stream. 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.

This paper aims at describing in a simple way the M-cycle operation and utilization and at presenting some useful experimental data, to prove the high efficiency of M-cycle, under Mediterranean climate conditions. Two cases of limited mass flow cgcle examined. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.


[Full text] Maisotsenko cycle: technology overview and energy-saving potential in | EECT

On-site experimental testing of a novel dew point evaporative 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.

It is clear that, dycle 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. The replacement of conventional cyvle systems by ones based on M-cycle maistsenko to a significant environmental benefit, as:. Although ECs cannot achieve as low temperature as their users want due to the dew-point temperature restrictionM-cycle is the most effective IEC, the product air of which tends to the outlet air temperature of conventional building air-conditioning systems.

It enters the wet channels under lower temperature than ambient temperature, and the wet-bulb temperature, which is eliminated at each working channel, is related to the inlet temperature.

There is no doubt about the effect of the reduction of the ccle stream flow on the improvement of the cooler efficiency. On the contrary, it is shown how disastrous a reduction of the working stream flow can be because the poor evaporation makes the cooler inefficient for significant temperature drops.

Maisotsenko cycle: technology overview and energy-saving potential in cooling systems

Although conventional air-conditioning systems are widely accepted to be of high energy consumption, they cover a significant part of needs for air-conditioning. Figure 7 Operational cost of evaporative cooler and of a conventional cooler.

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 Maisotsenko cooler instead of a typical EC.