本文描述了最近安装在韩国乌门研发园区的暖通空调系统的设计和评估。校园由六座类似的建筑组成，分别为A、B、C、D、E和F。其中四座建筑A、B、D和E配备了由离心式制冷机和吸收式制冷机组成的传统暖通空调系统，以及可变制冷剂流量（VRF）系统，以满足其制冷和制热需求，而传统建筑的VRC和100%的暖通空调系统由100%的建筑楼层覆盖。 由于这六栋建筑在建筑、施工、占用和热负荷方面的相似性，本项目提供了一个独特的机会，可以在能源、舒适性、维护成本和初始投资等多个方面比较VRF系统、传统HVAC系统及其组合。在本文中，我们将关注系统设计方面，并分享如何使用不同暖通空调系统来满足大型研发园区的供暖和制冷需求的设计经验，以满足建筑节能性能、室内质量、人体舒适性和建筑生命周期成本的目标。 分析比较了各种暖通空调系统，包括VRF系统、传统暖通空调系统及其组合。详细的系统生命周期（LCC）分析表明，VRFs可以为大型商业建筑提供节能、经济的供暖和制冷解决方案。将详细描述本项目中实施的各种技术改进，例如排放温度控制策略、闲置室内机组的部分EEV关闭，以及配备VRF机组的AHU中的DX线圈设计。引文:2016年年度会议，圣路易斯。 路易斯，莫，会议文件

This paper describes the design and evaluation of the HVAC systems recently installed in Umyoen R&D campus in Umyoen, South Korea. The campus consists of six similar buildings, A, B, C, D, E, and F. Four of these buildings, A, B, D, and E are equipped with a mix of traditional HVAC systems consisting of centrifugal chillers and absorption chillers, and variable refrigerant flow (VRF) systems to meet their cooling and heating needs, while building C is 100% served by VRF systems and the standard floors of building F are 100% covered by traditional HVAC systems. Thanks to the similarities in architecture, construction, occupancy, and thermal load of these six buildings, this project provides a unique opportunity to compare VRF system, traditional HVAC system, and their combination over a wide range of aspects: energy, comfort, maintenance costs, and initial investments. In this paper, we will focus on the system design aspects and share the design experiences of how to use different HVAC systems to serve the heating and cooling needs of a large scale R&D campus to meet the goals of building energy performance, indoor quality, human comfort, and building life cycle costs. Various HVAC systems, including VRF systems, traditional HVAC systems, and their combination are analyzed and compared. Detailed system life cycle (LCC) analysis demonstrates that VRFs can provide an energy efficient and cost effective heating and cooling solution for large commercial buildings. Various technical improvements implemented in this project will be described in detail, such as discharge temperature control strategy, partial EEV shut off for idle indoor units, and DX coil designs in AHUs served with VRF units.