Numerical Analysis of VRF Compression Heat-pump System under Unsteady-State Condition

DOI Web Site

Bibliographic Information

Other Title
  • VRF 型圧縮式ヒートポンプ空調機の非定常特性解析
  • VRF型圧縮式ヒートポンプ空調機の非定常特性解析 : VRF型に固有な非定常特性の解明
  • VRFガタ アッシュクシキ ヒートポンプ クウチョウキ ノ ヒテイジョウ トクセイ カイセキ : VRFガタ ニ コユウ ナ ヒテイジョウ トクセイ ノ カイメイ
  • －VRF 型に固有な非定常特性の解明－
  • －Analysis of Special Unsteady State Characteristics of VRF Compression Heat-pump System－

Search this article

Description

Recently at commercial buildings and office buildings it is popular to install VRF (variable refrigerant flow) compression type heat pump system. Especially, VRF system which has multi indoor units is install in large building because this system has large adjusting capacity. On the other hand, depend on indoor unit’s condition the way to operation the other indoor unit change dramatically under unsteady-state driving, so it is too difficult to find optimum operating condition. In addition to changing the number of active indoor units occurs big change of quantity of refrigerant flow, refrigerant distribution changes step by step. We make the numerical simulation model which can be evaluate unsteady-state driving and make sure the accuracy of model, compared test results, and we analyze the effect of the case of decreasing active indoor unit.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top