{"id":42419,"date":"2023-07-25T10:30:25","date_gmt":"2023-07-25T08:30:25","guid":{"rendered":"https:\/\/www.thermokey.com\/?p=42419"},"modified":"2024-11-08T10:37:05","modified_gmt":"2024-11-08T09:37:05","slug":"multi-system-dual-flow","status":"publish","type":"post","link":"https:\/\/www.thermokey.com\/en\/products\/multi-system-dual-flow\/","title":{"rendered":"TKMicro Multi System Dual Flow"},"content":{"rendered":"
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[vc_row css=”.vc_custom_1731058620486{margin-bottom: 35px !important;border-radius: 1px !important;}”][vc_column width=”1\/2″][vc_custom_heading text=”A solution of heat recovery and enhanced performance” font_container=”tag:h3|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690204877666{margin-bottom: 20px !important;}”][vc_column_text css=”.vc_custom_1690272906026{margin-bottom: 35px !important;}”]This new concept represents a revolution for heat recovery<\/strong> and is more than a valid alternative to conventional adiabatic systems. By using two circuits in micro-channel heat exchangers (MCHX), an additional cooler fluid can help to reduce the inlet air temperature<\/strong> and to recover part of the heat otherwise<\/strong> released completely into the atmosphere. This technology does not just enhance the performance of coolers and condensers, but also provides a warm source of heat that can be used in many applications.[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”42317″ img_size=”full”][vc_column_text]<\/p>\n

Multi System Dual Flow working principle.<\/span><\/em><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1731058612104{margin-top: 60px !important;margin-bottom: 60px !important;border-radius: 1px !important;}”][vc_column][vc_video link=”https:\/\/youtu.be\/T8oYosR6q_A”][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1690195605246{margin-bottom: 35px !important;border-bottom-width: 1px !important;padding-bottom: 35px !important;border-bottom-color: #03497d !important;border-bottom-style: solid !important;border-radius: 2px !important;}”][vc_column width=”1\/2″][vc_custom_heading text=”A valid alternative to adiabatic systems” font_container=”tag:h2|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690272937664{margin-bottom: 20px !important;}”][vc_column_text]With hot weather conditions, the air that passes through the front part of the multiport is cooled down by the secondary fluid providing a heat transfer boost through the rest of the tube. Introducing water<\/strong> inside the tubes on a closed circuit<\/strong>, compared to conventional adiabatic systems, there is no water consumption<\/strong> and this concept is not subjected to critical hygienic conditions, water treatment, core cleaning or corrosion.[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”42673″ img_size=”full”][vc_column_text css=”.vc_custom_1694157129189{margin-top: 20px !important;}”]<\/p>\n

Air Temperature along the tube width.<\/span><\/em><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1690195609883{margin-bottom: 35px !important;border-bottom-width: 1px !important;padding-bottom: 35px !important;border-bottom-color: #03497d !important;border-bottom-style: solid !important;border-radius: 2px !important;}”][vc_column width=”1\/2″][vc_custom_heading text=”A new solution for heat recovery, more compact and versatile” font_container=”tag:h2|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690194728486{margin-bottom: 20px !important;}”][vc_column_text]Nowadays, only in Europe, 2,860 TWh\/y of heat are released into the atmosphere<\/strong> [1], which is almost the same amount of thermal energy used for space heating and hot water. Across the Atlantic Ocean, the US produces 43·109 GJ (11,944 TWh) of waste heat over 30°C per year [2]. As the global chiller market is expected to grow at a 3% CAGR from 2022 to 2029<\/strong> [3], this number is, more likely, meant to increase in the next few years. Therefore, with the objective to tackle global warming and decarbonization, heat recovery in the field of industrial HVAC&R becomes essential.<\/p>\n

Typically, in HVAC&R applications, plate-type heat exchangers are used upstream of condensers and coolers, introducing an additional component to the plant for heat recovery. Furthermore, in the case of condensing units, the plate heat exchanger can only extract heat in the desuperheating zone and\/or it must be placed higher than the air-cooled condenser. However, these complications cease to exist with this integrated solution, more compact than air-cooled heat exchangers and more versatile than the water-cooled ones<\/strong>.[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”42334″ img_size=”full”][vc_column_text css=”.vc_custom_1690195598770{margin-top: 10px !important;}”]<\/p>\n

Reverse Carnot cycle<\/span><\/em><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1690204005630{margin-bottom: 35px !important;border-radius: 2px !important;}”][vc_column][vc_custom_heading text=”Calculations and tests” font_container=”tag:h2|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690203545908{margin-bottom: 20px !important;}”][vc_column_text css=”.vc_custom_1690204631133{margin-bottom: 15px !important;}”]ThermoKey is able to provide accurate calculations of this device<\/strong> thanks to the years of studies conducted with the support of the University of Udine. Based on CFD simulations, our calculation engine is able to provide results that are in line with the experiments conducted in certified laboratories. The analysis shows that, depending on the working conditions, the capacity can increase by more than 50%, which can allow us to reduce the required units or the exchanger size by 32%<\/strong>. Besides, the ventilation power can be reduced and the related noise by 10 dB(A).[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/3″][vc_custom_heading text=”Size \/ Weight reduction” font_container=”tag:h3|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690204259365{margin-bottom: 10px !important;}”][\/vc_column][vc_column width=”1\/3″][vc_custom_heading text=”Capacity increase \/ Numb. of units reduction” font_container=”tag:h3|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690204264539{margin-bottom: 10px !important;}”][\/vc_column][vc_column width=”1\/3″][vc_custom_heading text=”Vent. Power reduction \/ Noise reduction” font_container=”tag:h3|text_align:left|color:%23004987|line_height:30%20px” css=”.vc_custom_1690204270253{margin-bottom: 10px !important;}”][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1690204716542{margin-bottom: 70px !important;}”][vc_column width=”1\/3″][vc_single_image image=”42347″ img_size=”full”][\/vc_column][vc_column width=”1\/3″][vc_single_image image=”42355″ img_size=”full”][\/vc_column][vc_column width=”1\/3″][vc_single_image image=”42362″ img_size=”full”][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1690195609883{margin-bottom: 35px !important;border-bottom-width: 1px !important;padding-bottom: 35px !important;border-bottom-color: #03497d !important;border-bottom-style: solid !important;border-radius: 2px !important;}”][vc_column width=”1\/2″][vc_column_text]Tests<\/strong> have been performed in other two different laboratories showing the following results:<\/p>\n