{"id":2506,"date":"2023-06-19T09:10:59","date_gmt":"2023-06-19T09:10:59","guid":{"rendered":"https:\/\/fairconditioning.org\/fc-activity\/?post_type=activity&p=2506"},"modified":"2023-06-19T09:10:59","modified_gmt":"2023-06-19T09:10:59","slug":"evaporative-cooling-systems-water-requirement","status":"publish","type":"activity","link":"https:\/\/fairconditioning.org\/fc-activity\/activity\/evaporative-cooling-systems-water-requirement\/","title":{"rendered":"Evaporative Cooling System’s Water Requirement"},"content":{"rendered":"\n
\n
\n
Objective<\/h5>\n\n\n\n

To determine mass flow rate of water required per TR of cooling in an evaporative cooling system.\u00a0<\/p>\n\n\n\n

Outcome<\/h5>\n\n\n\n

Students will realize that irrespective of the ambient conditions or the type of climate, water requirement in an evaporative cooler per TR remains the same.\u00a0<\/p>\n\n\n\n

Requirements<\/h5>\n\n\n\n

None<\/p>\n\n\n\n

Prerequisites<\/h5>\n\n\n\n
    \n
  1. Conceptual knowledge of psychrometry.<\/li>\n\n\n\n
  2. Understanding of psychrometric chart.<\/li>\n<\/ol>\n\n\n\n

    Given Data:<\/em><\/strong><\/p>\n\n\n\n

    Design Conditions:<\/p>\n\n\n\n

      \n
    1. Cooling Load : 1 TR<\/li>\n\n\n\n
    2. Latent heat of vaporization of water : 540 kcal\/kg<\/li>\n<\/ol>\n\n\n\n

      Conversion Factors:<\/p>\n\n\n\n

        \n
      1. 1 kW = 1 kJ\/s<\/li>\n\n\n\n
      2. 1 kcal = 4.18 kJ<\/li>\n\n\n\n
      3. 1 hr = 3,600 s<\/li>\n\n\n\n
      4. 1 TR = 3.517 kW of cooling<\/li>\n<\/ol>\n\n\n\n
        Procedure<\/h5>\n\n\n\n

        Step 1: <\/em><\/strong>Convert the Cooling Load in TR to kcal\/s.<\/p>\n\n\n\n

        Step 2: <\/em><\/strong>From Cooling Load and Latent Heat of Vaporization, determine the mass flow rate of water in kg\/s, convert into kg\/hr.<\/p>\n\n\n\n

        Step 3: <\/em><\/strong>Determine the flow rate of water per TR (kg\/hr\/TR). <\/p>\n\n\n\n

        Calculations:<\/em><\/strong><\/p>\n\n\n\n

        Step 1: <\/em><\/strong>Cooling Load (kcals) = (cooling load (TR) 3.517) (kJs)4.18 (kJkcal)  <\/p>\n\n\n\n

        = 100 3.5174.18    <\/p>\n\n\n\n

        = 84.1kcals<\/p>\n\n\n\n

        Step 2:<\/em><\/strong> Mass flow rate of water (mW<\/sub>) (kghr) =cooling load (kcals) 3600 (shr)latent heat of vaporization of water (kcalkg) <\/p>\n\n\n\n

                      = 84.1 3600540   <\/p>\n\n\n\n

                      = 560 kghr<\/p>\n\n\n\n

        Step 3: <\/em><\/strong>Flow rate of water per TR (kghr-TR) = mW (kg H2Ohr)cooling load (TR) <\/p>\n\n\n\n

        = 560100  <\/p>\n\n\n\n

                    = 5.6 <\/em><\/strong>kghr-TR <\/em><\/strong><\/p>\n\n\n\n

        References<\/h5>\n\n\n\n

        None<\/p>\n\n\n\n

        Source of Idea<\/h5>\n\n\n\n

        <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        Objective To determine mass flow rate of water required per TR of cooling in an evaporative cooling system.\u00a0 Outcome Students will realize that irrespective of the ambient conditions or the type of climate, water requirement in an evaporative cooler per TR remains the same.\u00a0 Requirements None Prerequisites Given Data: Design Conditions: Conversion Factors: Procedure Step […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false},"activity_subject":[124,125],"academic_year":[68,69],"complexity":[60],"content_tags":[440,514,494],"activity_type":[371],"activity_duration":[515],"acf":[],"_links":{"self":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2506"}],"collection":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity"}],"about":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/types\/activity"}],"author":[{"embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/comments?post=2506"}],"version-history":[{"count":1,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2506\/revisions"}],"predecessor-version":[{"id":2507,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2506\/revisions\/2507"}],"wp:attachment":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/media?parent=2506"}],"wp:term":[{"taxonomy":"activity_subject","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_subject?post=2506"},{"taxonomy":"academic_year","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/academic_year?post=2506"},{"taxonomy":"complexity","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/complexity?post=2506"},{"taxonomy":"content_tags","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/content_tags?post=2506"},{"taxonomy":"activity_type","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_type?post=2506"},{"taxonomy":"activity_duration","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_duration?post=2506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}