Evaluate VRF Compression Heat-pump System under Steady-State Analysis

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Other Title
  • VRF 型圧縮式ヒートポンプ空調機の定常特性解析
  • VRF型圧縮式ヒートポンプ空調機の定常特性解析(第1報)室内機運転台数変更時の数値解析と実験による評価
  • VRFガタ アッシュクシキ ヒートポンプ クウチョウキ ノ テイジョウ トクセイ カイセキ(ダイ1ポウ)シツナイキ ウンテン ダイスウ ヘンコウジ ノ スウチ カイセキ ト ジッケン ニ ヨル ヒョウカ
  • －第1 報：室内機運転台数変更時の数値解析と実験による評価－
  • －1st Report: Analysis of Numerical Simulation and Experimental Study Focusing on Changing the Number of Active Indoor Units－

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Abstract

Recently at commercial buildings and office buildings it is popular to install variable refrigerant flow compression type heat pump system. Those systems have many merits for users and constructors. At first, Cooling capacity’s range are wide for choosing adequate capacity, secondly the facilities were downsizing and separable to small units for easy transportation, thirdly multi indoor units can be controlled independently and so on. On the other hand, because driving conditions are changing dynamic for meeting user’s needs, it is complicated to adequate driving conditions to save energy consumption. We constructed simulation model by mathematical methods and we tested VRF compression heat-pump system at test room which can adjust temperature conditions freely. We evaluated the system changing the number of active indoor units on partial lord and we showed the effect of COP on this conditions.

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