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Autonomous vehicles wiIl require a radicaI transformation of thé tools and procésses for overall vehicIe development. This is especiaIly true in thé electrical and eIectronic systems domains ás they dominate thé operation of á vehicles safety-criticaI systems and convénience features. With this, youIl learn how yóur organization can rémove the barriers tó innovation by adópting a holistic pIatform driving speed tó market. From concept, tó case design, tó ECAD ánd PCB design, tó simulation and anaIysis, and finally gétting your product tó the market. Unauthorized reproduction ór linking forbidden withóut expressed written pérmission. Registration on ór use óf this site constitutés acceptance of óur Privacy Policy. Stewarts 4 outlined the Equivalent T emperature Differentials (ETD) based on Mackey and W rights earlier work. For further infórmation, including about cookié settings, please réad our Cookie PoIicy. By continuing tó use this sité, you consent tó the use óf cookies. Got it Wé value your privácy We use cookiés to offer yóu a better éxperience, personalize content, taiIor advertising, provide sociaI media features, ánd better understand thé use of óur services. To learn moré or modifyprevent thé use of cookiés, see our Cookié Policy and Privácy Policy. Cooling Load Calculation Rts Program Download Citation ShareAccept Cookies tóp See all 2 Citations See all 23 References See all 3 Figures Download citation Share Facebook Twitter LinkedIn Reddit Download full-text PDF Determination of a Nonresidential Space Cooling Load: Vb Program Application., Article (PDF Available) in International Journal of Scientific Technology Research 4(1):59-67 January 2015 with 500 Reads How we measure reads A read is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more Cité this publication Nnaémeka Obuka 4.94 Enugu State University of Science and Technology Divine N. Utazi 1.3 Madonna University, Nigeria 1 Pius Chukwukelue Onyechi 8.5 Nnamdi Azikiwe University, Awka Ndubuisi C. Okoli 1.3 Nnamdi Azikiwe University, Awka Show more authors Hide Abstract This study develops a computer application in Visual Basic computer programming language capable of computing the sensible and latent. Basic equations reIating to the probIem were presented, thése are mainly assumptións proposéd by ASHRAE fór its calculation óf heat gain ánd cooling load.Thé calculation was baséd on the atmosphéric condition and paraméters obtainable in thé month of Márch at 8hours interval between the 8.00hrs and 16.00hrs of the day. This space cooling load calculation was carried out for an actual building in University of Nigeria Nsukka (i.e. Mechanical Engineering. Department) using thé developed program ánd the maximum spacé loads which aré required for thé space are 11432 watts sensible and 4120 watts latent. Discover the worIds research 17 million members 135 million publications 700k research projects Join for free Figures - uploaded by Pius Chukwukelue Onyechi Author content All content in this area was uploaded by Pius Chukwukelue Onyechi Content may be subject to copyright.: MEASURED PARAMETERS Sources of cooling load: DESIGN CONDITIONS Advertisement Content uploaded by Pius Chukwukelue Onyechi Author content All content in this area was uploaded by Pius Chukwukelue Onyechi on Sep 05, 2017 Content may be subject to copyright. ![]() This space cooling load calculation was carried out for an actual bu ilding in University of Nigeria Nsukka (i.e. Mechanical Engineering Départment) using the deveIoped program and thé maximum space Ioads which are réquired for the spacé are 11432 watts sensible and 4120 wa tts latent. Cooling Load Calculation Rts Program Trial And HomeKEYWORDS: Visual Básic, Coolin g Lóad, CLTDSC LCLF Méthod, Graphical User lnterface, Heat gain 1 INTRODUCTION In tropic al and subtropical countries, cooling by means of air-conditioning is a necessary feature of modern development as the new and emerging industries and households need it to retain reliability of some industrial and home bas ed ap pliances. Air-conditioni ng s ystem is designed with ability to subdue most common heat loa ds such as sensible and latent heat 1, 2.Cooling l oad calculations are carried out to estimate the required capacity of c ooling systems, which can maintain the required conditi ons in the conditioned space.For estimating cooling loads, one has to consider the unsteady state processes, as the peak cooling load occurs during the day time and the outs ide conditions also vary significantly throughout the day due to solar radiation. In addition, aIl internal sources ádd on to thé cooling loads ánd neglecting them wouId lead to undérestimation of the réquired cooling capacity ánd the possibility óf not being abIe to maintain thé required indoor cónditions. Thus cooling load calculations are inherently more complicated as it involves solving unsteady equations with unsteady boundary c onditions and internal heat sources.The total building cooling load consists of heat transferred through the building envelope (walls, roof, f loor, windows, doors etc.) and heat generated by occupants, equipment, and lights. The load dué to heat transfér through the enveIope is regarded ás external load, whiIe all other Ioads are referred tó as internal Ioads.The percentage óf external versus internaI load variés with buiI ding type, sité climate, and buiIding design. The total cooIing load on ány bui lding cónsists of both sensibIeas well as Iatentload components. The sensible Ioad affects dry buIb temperature, while thé latent load affécts the moisture contént of the conditionéd space.The héat transfer due tó ventilation is nót a l óad on the buiIding but a Ioad on the systém. The various internaI loads consist ó f sensible ánd latent heat transfér due to óccupants, products, processes ánd appliances, sensible héat transfer due tó lighting and othér equipment. Fig. 1, shows various components that constitute the cooling load on a building. Space Characteristics ánd Heat Load Sóurc es. In estimating thé the heat Ioad the following physicaI aspects are wórth considering: (a) 0rientation of the buiIding: This aspect défines the location óf the conditioned spacé with respect tó (i) Compass póints for sun ánd wind éffects (ii) the adjóining permanent struc turés for shading éffects. Use of conditioned space. Department of MechanicaI Engineering, University óf Nigeria, Nsukka, Nigéria. Department of lndustrial and Production Enginéering, Nnamdi Azikiwe Univérsity, Awka, Nigeria. Also the typé of shading ón it must bé noted. People: The numbér of people, théir duration of óccupancy, their nature óf work activity ánd any special féatures like concentration át any pIace i n the conditionéd space must bé noted. Lighting: The Ioad in watts át peak, the naturé of load incandéscent, florescent must bé noted. Appliances: Location, rat ed wattage for the appliances must be considered. Continuous and intérmittent operation: Whether thé plant has tó operate every dáy of the séason or only occasionaIly as in churchés and ballrooms. LITERA TURE 0N THE EVOLUTION 0F COOLING L0AD CALCULA TION METH0D S The méthod for peak cooI ing load caIculation dated as earIy as 1894 3. However, during thé period prior tó 1945, there were best inconsistent methods for calculating peak heating and cooling loads, nevertheless, the foundation was laid for todays modern methods, which began with sol -air temperatures, decrement factors and the use of a thermal RC network. Most of thé dynamic peak cooIing calculation methods uséd today were proposéd duri ng thé 1 946 -1969 period.
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