超市制冷,加热,空调和通风最佳作为集成解决方案。这就是原因。

2019年8月19日,星期一

当您停下来思考时,超级市场通常付费以加热他们的房屋和水时有点奇怪,而冷藏系统则加班以在外面移动热能。

Once, this might have seemed sensible: having discrete, isolated systems can give retailers’ technical teams a sense of control. There’s also less risk that a major fault might incapacitate the whole system.

传统的HFC制冷剂也缺乏驱动加热系统所需的排放温度,而无需其他组件。这增加了安装成本和复杂性,并使投资回报相对较慢。

现在,该再次看了。能源成本正在上升,利润率很低。零售商正在努力减少其碳足迹,并尽可能地找到节省能源。

在这种情况下,随着CO的日益普及2as a refrigerant, integrating HVAC and refrigeration systems has become a serious option supermarkets can no longer ignore.

对于具有平行压缩机CO的超市2refrigeration system, incorporating heat recovery and air conditioning load is relatively straightforward—and extremely cost-effective. In the UK, a single Sainsbury’s supermarket saved one million kWh in a year with heat recovery from its CO2refrigeration system.

Running refrigeration, freezing, air conditioning, hot water, and in-store heating from a single compressor pack improves efficiency and the store’s carbon footprint, and can significantly reduce initial installation costs.

通过利用CO的高排放温度,将空间和水加热,通过在气体冷却器前面加入一个或多个其他热交换器。2

同时,可以在系统的分离器上安装空调蒸发器或冷水系统。与制冷负荷相比,这几乎可以免费提供空调。

As well as saving the running costs and carbon footprints of the separate systems, this approach can eliminate the need to install and maintain those components. For example, the store may not require a boiler or gas furnace at all.

也有可能进一步向附近的建筑物出售过多的热量。这是最简单的商店拥有相邻的健身中心或购物中心,但还有其他方法。例如,丹麦的一家超级桥子超市是众多提供他们当地的地区供暖系统。

While the theory is simple, supermarkets have historically faced a number of challenges with implementing heat recovery successfully.

Usually, systems were created, modified, or retrofitted on a bespoke basis. This limited servicing options. And in some systems, large temperature fluctuations in the heat exchanger led to CO2leakage into the water—creating carbolic acid that damaged water lines.

在Danfoss,我们想防止此类问题,简化过程,并将超市的热量恢复到主流中。

We’ve therefore combined our heating and refrigeration expertise to create a purpose-built Heat Recovery Unit (HRU), perfect for supermarkets. It’s now proving its worth in supermarkets across Northern Europe, where CO2已经建立了良好的,我们期待看到它在全球范围内带来结果。

HRU解决了许多传统问题的热量恢复,这无疑是通过为工程师提供明确的设计,常见组件和清晰的服务要求。它包括一个额外的热交换器,以防止崩溃,泄漏和温度缓冲箱,以防止在高峰需求时刻的压力。

结果是超市来利用CO的热恢复潜力的一种简单,独立的方式2制冷系统,使用由欧洲领先的加热系统制造商之一构建的系统。

It also opens the possibility of selling excess heat to neighbors in a controlled way, using approved heat meters—which can increase the benefit of using the store’s compressors as a heat pump.

It adds up to a rapid cost savings. If you have a CO2系统,回报通常在1 - 2年之内,有时会更早。

It’s also possible to integrate several approaches within a non-CO2空调(AC)系统以提高效率并降低GWP。

For example, in large, hypermarket-scale applications—or where there’s a large AC load—an oil-free centrifugal Danfoss Turbocor®compressor can run chillers in combination with air-handling units (AHUs).

这种集成的解决方案使这两种服务都非常节能,并打开了使用超低GWP,HFO制冷剂(如R1234ZE)的可能性。在中国,Suguo大型超市通过使用此解决方案将其交流电成本降低了50%。

对不断变化的负载条件的反应也很重要。因此,对于标准的屋顶冷却器方案,使用可变速度压缩机提供了一种即时的方法,可以提高系统每个部分的全年能源效率。这可以与额外的线圈和屋顶冰库进一步集成,以使负载达到高峰,并在可用时充分利用廉价能源。

但是,没有标准配置之类的东西。每个商店都面临不同的挑战。

An integrated solution may need to include measures to manage humidity, account for ambient temperature changes, or combat frosting and fogging. The system might incorporate a plug-in hydronic system with balancing valves, or fan speed control.

这意味着任何集成系统的中心部分都必须是一个智能控制器,并具有正确的算法,以充分利用解决方案中的所有技术。

例如,Danfoss MCX控制器可让您采用模块化方法,以扩展和配件模块进行构建,以满足您的系统的确切需求。它还使您可以通过其自己的设计应用程序以图形方式对系统进行编程。

将您的控制器连接到像Danfoss AK-SM800这样的店内系统管理器,使其更聪明。现在,您可以通过单个界面链接在其他商店中的其他建筑管理系统中,并调整整个商店的性能 - 因此,您可以权衡各个方面,以实现总体上最佳的能源概况。

Ultimately, the closer you align your heating, ventilation, air conditioning, and refrigeration systems, the easier it will be to save money, safeguard stock, and reduce your environmental impact.

为了额外的好处,综合解决方案减少了单独的系统供应商提出问题原因,延迟修复和危害食品安全的机会。

简而言之,这是一种出色的商业意义。

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Align your heating, ventilation, air conditioning, and refrigeration systems, to save money, safeguard stock, and reduce your environmental impact. Integrated solutions unlock the full potential of each application and increases the efficiency of the entire system.

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The Smart Store solution enhances food safety and brings down the energy bill by integrated and smart control of refrigeration, HVAC, lighting and other applications.

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