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Roofer LeamingtonSpa Group

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Ernest Yakovlev
Ernest Yakovlev

Unilab Coils 6 5



Coils manufacturers need a highly integrated approach to the selection, sale, design and production of finned pack heat exchangers. For these customers, Unilab, a leader for over 35 years in software in the field of heat exchange, has designed an innovative package for Coils Heat Exchangers. COILS SUITE is the Unilab software solution specifically designed to increase speed and accuracy in all phases of the finned pack exchanger proposal, sales and production process. The package includes 4 highly integrated modules: the DESIGN Module (known as Unilab Coils), for the verification and selection of finned coils, the SALES Module (mCOILS, available in both Desktop and web-based versions) and thePRODUCTION module (Easy) + the new SIMULATION/SPECIAL APPLICATIONS




unilab coils 6 5



COILS SPECIAL APPLICATIONS, also known as SIMULATION, is the new COILS SUITE module dedicated to the simulation of COILS which are in series air side, and in parallel on fluid side. The special feature of this module is the possibility tosimulate different coils fed by different fluids, where the air temperature comingout of one coil automatically becomes the inlet of the other.


UNILAB COILS is the best & most accurate software for the calculation of Coils Heat Exchangers and can be used in air conditioning, fancoils, industrial chillers and air handling units. It is an advanced tool for the calculation of both finned pack and smooth tube heat exchangers, and includes specific features for the HVAC market.Compared to laboratory tests, UNILAB COILS calculation results show a very high level of accuracy in both capacity and pressure drops, allowing you to certify your heat exchangers, fancoils or air handling units with Eurovent and AHRI at the first attempt. UNILAB COILS is the result of over 35 years of experience in the HVAC market, validated by experimental data and consolidated customer satisfaction. Available in 3 versions, COILS adapts to your needs, allowing you to manage and enrich an already wide archive of geometries (geometry means the external diameter of the tubes, the tube pitch, the row pitch). From the PRO version, the user can perform a multiphase condensing calculation, access an expandable archive of fans and compressors, and quickly generate catalogs and performance tables. From the ENTERPRISE version, the user can simulate a refrigeration cycle project (made of a finned pack condenser, a scroll or screw compressor and an evaporator), calculate coils without fins, coils with an external mixture outside the tubes, a Runaround Coil system (bFly or N-M recuperators,and even Finned pack heat exchangers in series!(check the characteristics of each version!)


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The 1st module is LT-HT which is able to calculate 2 HEATING or COOLING coils in series on air side & in parallel (fed by different fluids) on fluid side.


This application consists of two coils heat exchangers (In 98% of cases LT-HT is made with two coils, although the program can handle virtually more than two) heating coils, or cooling coils, which are in series on the air side, i.e., with air flowing through both, and in parallel on the fluid side, i.e., fed singly, for example, with one coil fed with water and another with a mixture of water and glycol. The module allows, by giving the inlet and airflow conditions, to take the temperature coming out of the first coil, making it become the inlet temperature in the second. This allows many possibilities: you can perform calculation of dehumidifiers (both cold and hot fluids in the same equipment), each coil can have different geometry, and different fin spacings, one per coil (in blastfreezers for example).


The second special application is the FREECOOLING module. In this case, COILS can simulate two scenarios of coils in series air side. A Heating Coil + a Condenser, as generally seen in air water chiller applications, and a Cooling Coil + a Condenser. Both are in parallel fluid side, so they can be fed by different fluids.


Attention: this simulation module considers only the 2 coils, and not the remainingcomponents of the refrigerant cycle. For the full refrigerant cycle with freecooling coils, you con consider the software SHARK & have a look at our dedicatedmodule for air water Chillers!


In this case, COILS can simulate two coils in series, made of a Cooling Coil plus aCondenser. The purpose is reaching lower condensing Temperature, so the coolingcoil provides lower temperature at the condenser in order to reach lower condensingtemperature. In this example, air enters the cooling coil at 35C and 50% RH, while water gets from 7 to 12 C. Air entering the cooling coil gets cooled down at 27C and enters the condensing coil, allowing a lower condensing Temperature. This module allows, by giving the inlet and airflow conditions, to take the temperature coming out of the Cooling coil, making it become the inlet temperature in the Condenser, showing a lower condensing temperature as result.


There are applications in which instead of milk we can heat or cool a general fluid still using pillow plate heat exchangers. Also we need to mention special type of application using Plate Coils which are cost-effective replacements for pipe coils in immersion heating and cooling applications. They offer amplified turbulent flow on both the service and process sides; making them more efficient than pipe coil type heat exchangers.


Thus if we deal with the needs of the diary/food industry, the design of heat exhcanger must ensure the most efficient and cost effective heat exchanger solution is always provided. From raw data, Unilab Pillow Suite can design and produce a range of custom-built pillow and pcoils heat exchangers for a multitude of applications and operational conditions.


Anyway in the standard Coils version there is the possibility to set some factors in order to adjust the outputs: obviously we are sure that the software can calculate the most reliable results for usual coils without any need to modify these factors, but you could have some special no-standard configurations/calculations which may need to set some different values to reach the real output values: in these cases you could modify the factors with your experience or better if you have some experimental data.


Structure verification and determination require high quality spectra, which are characterized by excellent lineshape for all nuclei and high sensitivity for all experiments. Well balanced rf channels and matched B1 homogeneity of all coils are a prerequisite, if best sensitivity is to be obtained for any type of application. Excellent solvent suppression enables applications in water, like biomolecular experiments and metabonomic studies.


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