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海水冷却哥本哈根城，将排放量减少70％

2019年2月20日，星期三

丹麦：哥本哈根的两个地区冷却中心使用哥本哈根港的海水进行冷却系统。七年来，VLT®驱动器控制泵和压缩机的驱动器已证明其价值，确保了高效率和令人印象深刻的供应安全性。

海水冷却哥本哈根城，将排放量减少70％

发现VLT®如何驱动基于海水的地区冷却的供应安全性

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舒适，流程冷却和冷冻机

在寒冷的北欧，对冷却系统的需求对所有人来说并不明显。尽管如此，即使在寒冷的冬季，也需要冷却。大哥本哈根公用事业公司（HOFOR）运营基于海水的地区冷却，为各种商业客户提供服务。hofor区冷却的业务开发商，Admir Omeragic解释说，他的50％的客户使用地区冷却来进行舒适冷却，40％的客户将其用于流程冷却，而冻结设施10％。这意味着，大约一半的地区冷却能力用于在办公室，商店和其他许多人共享设施的地方保持舒适的室内气候。用于流程冷却的40％适用于服务器室，处理设施或医院设备。

海水如何冷却城市

两个地区冷却中心的总容量约为65兆瓦。在冬季，当海水温度低于5.2°C时，系统将海水通过热交换器泵送，并且输出后处理的水作为免费冷却发送给客户。在一年中温暖的几个月中，被动海水冷却与主动压缩机冷却相结合。Hofor Pumps 6°C向最终用户冷却水，并返回6°C的水。

客户节省金钱，空间和麻烦

哥本哈根的地区冷却客户享有多种好处 - 它的成本较小，占用更少的空间，也不会发出噪音。“我们从很高兴摆脱嘈杂的屋顶冷却器的客户那里得到了很多反馈。现在，用较小的接收器设置代替了旧的空调设施的客户现在可以更好地使用释放空间。”

Hofor District冷却的业务开发商，Apkir Omeragic
减少排放

减少排放

用于控制地区冷却厂中泵和压缩机的大量VLT®驱动器有助于减少CO2排放每年超过3000吨。

DiscoverVLT®AquaDrive FC 202

驱动调节泵和压缩机

区域冷却系统高效率的一个重要贡献者是选择高功率VLT®驱动器来调整所有主泵的流量以满足不断变化的冷却需求。

制冷压缩机容量由高功率VLT®驱动器和建筑物中的HVAC系统速度控制，使用了一些较小的Danfoss驱动器。

为什么霍弗尔更喜欢丹佛斯

VLT®驱动器在Hofor地区冷却设施中提高了高能效率，还确保了9.9803％的供应量高度高。

“从一开始，我们就选择在我们的设施中使用Danfoss的优质产品，我们从不后悔。betway88必威手机版对于我们来说，更容易对规格进行概述，并且在所有参数（例如维护，标准，效率和运行成本）上，它们已经是最佳的。我们没有任何问题，即使在这个极度炎热的夏天，我们刚刚度过了一切，一切都在全力以赴，一切都很好。”

了解驱动器

VLT®AquaDrive FC 202

FC 202驱动器和控制所有类型的泵，并配备了级联控制器。针对水和废水应用进行了优化。

VLT®HVACDRIVE FC 102

这种艰难而精明的FC 102驱动器可增强建筑管理系统中的泵和风扇应用，并在大多数气候中在户外运行。

VLT®自动化驱动器FC 302

该驱动器专为所有电动机的可变速度控制而设计，具有标准和先进的高动态版本。

地区供暖和冷却案例研究

SCOTLAND: In line with the zero-waste objectives of the Scottish government, treatment of non-recyclable urban waste contributes to eliminating landfill whilst generating electricity and heat. Equipped with high-efficiency VACON® NXP drives, the process generates heat enough to supply 25,000 households.

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Taarnby Municipality within Greater Copenhagen is the first to integrate the production of district cooling and district heating in combination with ground source cooling and chilled water storage in one facility that also exploits surplus heat from a nearby wastewater treatment plant. This symbiosis allows the utility company to provide building owners in the district with competitive and environmentally friendly cooling – while generating more cost-effective heating to the district heating network.

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DENMARK: The FlexHeat district heating plant at Copenhagen’s Nordhavn harbor emits 315 fewer tonnes per annum of CO2 than the LPG gas-based alternative.

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DENMARK: Two district cooling centrals in Copenhagen use seawater from Copenhagen Harbor for their cooling systems. For seven years, VLT® drives controlling pumps and compressors have proven their worth, ensuring high efficiency and impressive security of supply.

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By generating power and heat from biogas instead of fossil fuels, MEC-BioGas reduces its CO2 footprint by 50000 tpa. Danfoss VLT® drives ensure optimal uptime in the 24/7 operations.

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AC drives from Danfoss help convert biomass from insulin and enzyme production to energy.

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